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Technical Sessions

Listed in alphabetical order.

Bacteriology/Pathogen Detection

Monday, August 9; 8:30 – 11:30 a.m.; 208B

Sections: Molecular/Cellular/Plant-Microbe Interactions; Diseases of Plants
Moderators: Premila Achar, Kennesaw State University, Kennesaw, GA, U.S.A.; Neha Jalan, Microbiology and Cell Science Dept., CREC, University of Florida, Lake Alfred, FL, U.S.A.

8:30 a.m.

34-O. Characterization of the HrpG and HrpX regulons of Xanthomonas axonopodis pv. citri. Y. GUO (1), N. Wang (2). (1) University of Florida, Lake Alfred, FL, U.S.A.; (2) Citrus Res. and Education Center, University of Florida, Lake Alfred, FL, U.S.A.

8:45 a.m.

35-O. Comparative genomic analysis of Xanthomonas axonopodis pv. citri str. Aw 12879 and Xanthomonas axonopodis pv. citri str. 5208 (Miami). N. JALAN (1), N. Wang (1). (1) Microbiology and Cell Science Dept., CREC, University of Florida, Lake Alfred, FL, U.S.A.

9:00 a.m.

36-O. RPG1-B-derived resistance to AvrB expressing Pseudomonas syringae requires RIN4-like proteins in soybean. D. SELOTE (1), A. Kachroo (1). (1) University of Kentucky, Lexington, KY, U.S.A.

9:15 a.m.

37-O. Defense-related enzymes and gene expression after resistance induction by rhizobacteria and silicon against Ralstonia solanacearum in tomato. H. K. MULAT (1). (1) Gottfried Wilhelm Leibniz University of Hannover, Hannover, Germany

9:30 a.m.

38-O. The virulence mechanisms of Xylella fastidiosa in xylem fluid from resistant and susceptible grapevines. X. SHI (1), Z. Liang (2), J. Bi (3), J. G. Morse (4), D. A. Cooksey (5). (1) Dept. of Plant Pathology, NYSAES, Cornell University, Geneva, NY, U.S.A.; (2) Horticulture Dept., Cornell University, Ithaca, NY, U.S.A.; (3) University of California Cooperative Extension, Salinas, CA, U.S.A.; (4) Dept. of Entomology, University of California, Riverside, CA, U.S.A.; (5) Plant Pathology Dept., University of California, Riverside, CA, U.S.A.

9:45 a.m.

39-O. Death of epithelial cells in loblolly pine roots. C. H. WALKINSHAW (1). (1) Columbus, GA, U.S.A.

10:00 a.m.

Break

10:15 a.m.

40-O. PCR detection and identification of Phymatotrichopsis omnivore. M. ARIF (1), S. M. Marek (1), F. M. Ochoa Corona (1), C. Young (2), C. D. Garzon (1). (1) Dept. of Entomology and Plant Pathology, Oklahoma State University, Stillwater, OK, U.S.A.; (2) The Samuel Roberts Noble Foundation, Ardmore, OK, U.S.A.

10:30 a.m.

41-O. Development of a multiplex assay for genus and species-specific detection of Phytophthora based on differences in mitochondrial gene order. G. BILODEAU (1), F. N. Martin (1), M. D. Coffey (2), C. L. Blomquist (3). (1) USDA-ARS, Salinas, CA, U.S.A.; (2) Dept. of Plant Pathology and Microbiology, University of California Riverside, Riverside, CA, U.S.A.; (3) California Dept. of Food and Agriculture, Plant Pest Diagnostics Branch, Sacramento, CA, U.S.A.

10:45 a.m.

42-O. Development of a biological sensor for powdery mildew (Erysiphales) infections via monitoring of the proboscis extension reflex in honeybees. A. M. SUTHERLAND (1), R. M. Wingo (2), K. J. McCabe (3), W. D. Gubler (1). (1) Dept. of Plant Pathology, University of California, Davis, CA, U.S.A.; (2) Chemical Diagnostics and Engineering, Los Alamos National Laboratory, Los Alamos, NM, U.S.A.; (3) Bioscience Division B, Los Alamos National Laboratory, Los Alamos, NM, U.S.A.

11:00 a.m.

43-O. Evaluation of a new method for collection and detection of plant pathogens within their vector. J. A. PRICE (1), A. Simmons (1), J. Bass (1), C. M. Rush (1). (1) Texas AgriLife Research, Amarillo, TX, U.S.A.

11:15 a.m.

44-O. Detection and quantification of the sugar beet cyst nematode, Heterodera schachtii, through qPCR. G. RAUSCHER (1), K. Richardson (1). (1) USDA ARS, Salinas, CA, U.S.A.

Biological Control/Bacteriology

Sunday, August 8; 1:00 – 4:00 p.m.; 217BC

Sections: Plant Disease Management; Molecular/Cellular/Plant-Microbe Interactions
Moderator: Pervaiz A. Abbasi, Agriculture & Agri-Food Canada, London, ON, Canada

1:00 p.m.

1-O. Biocontrol and functional properties of pseudomonads isolated from different ecological niches and diversity of phlD a key gene in the 2, 4-DAPG biosynthesis. J. SEKAR (1), V. R. Prabavathy (1), S. Nair (1). (1) M.S. Swaminathan Res. Foundation, Chennai, India

1:15 p.m.

2-O. Bacillus subtilis, strain QST 713, Biofungicide II: Soil applications for disease control, yield improvement, and quality enhancement. P. J. WALGENBACH (1), D. Long (2), D. Sliva (3). (1) AgraQuest, Inc., Davis, CA, U.S.A.; (2) AgraQuest, Inc., Demarest, GA, U.S.A.; (3) AgraQuest, Inc., Santa Maria, CA, U.S.A.

1:30 p.m.

3-O. Biological control of bacterial spot of tomato and capsicum caused by Xanthomonas campestris and Pseudomonas solanacearum by bacteriophages in the UAE. K. A. EL-TARABILY (1), F. McKenna (2). (1) United Arab Emirates University, Al-Ain, UAE; (2) Natural Science Center Inc., Steele, AL, U.S.A.

1:45 p.m.

AWARD 4-O. Field evaluations of Simplicillium lanosoniveum as a biological control agent for Phakopsora pachyrhizi. N. A. WARD (1), R. W. Schneider (1), C. L. Robertson (1). (1) Louisiana State University Agricultural Center, Baton Rouge, LA, U.S.A.

2:00 p.m.

5-O. Improving scab suppression and tuber yield of potatoes with multiple repeated applications of low rates of fish emulsion to a commercial field. P. A. ABBASI (1). (1) Agriculture & Agri-Food Canada, London, ON, Canada

2:15 p.m.

6-O. Biological control of Macrophomina phaseolina on sunflower in Pakistan. H. ULLAH (1). (1) Dept. of Plant Pathology, University of Agriculture, Peshawar, Pakistan

2:30 p.m.

Break

2:45 p.m.

7-O. Characterization of the occ gene cluster required for the production of antifungal compound occidiofungin in Burkholderia contaminans strain MS14. G. GU (1), K. Chen (1), L. Smith (1), S. Lu (1). (1) Mississippi State University, Mississippi State, MS, U.S.A.

3:00 p.m.

8-O. A virulence factor of phytoplasma inducing witches’-broom and dwarfism symptoms. A. Hoshi (1), S. Kakizawa (1), Y. Ishii (1), N. Kojima (1), K. Sugawara (1), Y. Okano (1), K. Maejima (1), K. Oshima (1), S. NAMBA (1). (1) Laboratory of Plant Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan

3:15 p.m.

9-O. Transposon mutagenesis of Pantoea ananatis: Isolation and characterization of a Tn5-induced mutant with reduced virulence to onion. A. M. Zaid (1), J. M. Bonasera (1), S. V. BEER (1). (1) Dept. of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY, U.S.A.

3:30 p.m.

10-O. Towards understanding coronatine-dependent suppression of innate immunity in Arabidopsis guard cells. N. OBULAREDDY (1), S. Panchal (1), M. Melotto (1). (1) University of Texas, Arlington, TX, U.S.A.

3:45 p.m.

AWARD 11-O. In planta expression profiling reveals Ralstonia solanacearum physiology and the importance of sucrose metabolism during bacterial wilt of tomato. J. M. JACOBS (1), F. Meng (1), L. Babujee (1), C. Allen (1). (1) University of Wisconsin, Madison, WI, U.S.A.

 ‘Candidatus Liberibacter’/Epidemiology & Ecology

Wednesday, August 11; 8:30 – 11:30 a.m.; 217BC

Section: Epidemiology/Ecology/Environmental Biology
Moderator(s): Daniel Anco, Ohio State University, OARDC, Wooster, OH, U.S.A.; Magdalen Lindeberg, Cornell University, Ithaca, NY, U.S.A.

8:30 a.m.

124-O. Impact of zebra complex disease on the development of potato plants from seedborne infection of ‘Candidatus Liberibacter solanacearum’. A. WEN (1), X. Wang (1), J. S. Pasche (1), N. C. Gudmestad (1). (1) North Dakota State University, Fargo, ND, U.S.A.

8:45 a.m.

125-O. Detection of ‘Candidatus Liberibacter asiaticus’ associated with huanglongbing disease in the salivary glands and alimentary canal of Diaphorina citri. E. AMMAR (1), R. G. Shatters (1), D. G. Hall (1). (1) ARS-USDA, Fort Pierce, FL, U.S.A.

9:00 a.m.

126-O. Comparative analyses of the ‘Candidatus Liberibacter’ species reductive genome features. H. DODDAPANENI (1), H. Lin (2), Y. Duan (3), V. Lou (4), C. Chen (4), C. Vahling (3), Z. Lijuan (5), E. L. Civerolo (2). (1) Carver Center for Genomics, Dept. of Biology, University of Iowa, Iowa City, IA, U.S.A.; (2) USDA, ARS, SJVARC, Parlier, CA, U.S.A.; (3) USDA, ARS, USHRL, Fort Pierce, FL, U.S.A.; (4) Guangxi Citrus Res. Institute, Guilin, Guangxi, China, Parlier, CA, U.S.A.; (5) University of Florida, Indian River Res. and Education Center, Fort Pierce, FL, U.S.A.

9:15 a.m.

127-O. Bioinformatic analysis of genome sequence data for ‘Ca. Liberibacter asiaticus’. M. LINDEBERG (1), S. Saha (1). (1) Cornell University, Ithaca, NY, U.S.A.

9:30 a.m.

128-O. Epidemiology of potato zebra chip in the Texas Panhandle. D. C. HENNE (1), F. Workneh (1), C. Rush (1). (1) Texas AgriLife Res., Bushland, TX, U.S.A.

9:45 a.m.

129-O. Evaluation of the edge factor in epidemiology of zebra chip disease in potato fields. F. WORKNEH (1), D. C. Henne (1), A. C. Childers (1), C. M. Rush (1. (1) Texas AgriLife Res., Bushland, TX, U.S.A.

10:00 a.m.

Break

10:15 a.m.

130-O. Sporulation of Phomopsis viticola on infected grape tissues. D. J. ANCO (1), L. V. Madden (1), M. A. Ellis (1). (1) Ohio State University, OARDC, Wooster, OH, U.S.A.

10:30 a.m.

131-O. Controlling fire blight on popular apple cultivars with M9 rootstock. K. BASTAS (1). (1) Selcuk University Faculty of Agriculture, Konya, Turkey

10:45 a.m.

132-O. Effects of temperature and wetness duration on sporangia germination and infection of cucurbit varieties by Pseudoperonospora cubensis. K. NEUFELD (1), P. Ojiambo (1). (1) North Carolina State University, Raleigh, NC, U.S.A.

11:00 a.m.

133-O. Host and life strategy adaptations mediate competition among isolates of Aspergillus flavus. H. L. MEHL (1), P. J. Cotty (1). (1) USDA-ARS, Tucson, AZ, U.S.A.

11:15 a.m.

134-O. Effect of climate change on plant-pathogen-beneficial microorganism interactions. Y. ELAD (1), O. Agra (2), H. Ben Kalifa (2), D. Rav David (2), M. Borenshtein (2). (1) ARO, The Volcani Center, Bet Dagan, Israel; (2) Volcani Center, Bet Dagan, Israel

Chemical Control

Wednesday, August 11; 8:30 – 11:30 a.m.; 217A

Sections: Plant Disease Management; Diseases of Plants
Moderator: David C. Thompson, Rutgers University, Princeton, NJ, U.S.A.

8:30 a.m.

135-O. IR-4 Project fungicide registration update. D. C. THOMPSON (1), J. Corley (1), W. Barney (1), D. Carpenter (1). (1) Rutgers University, Princeton, NJ, U.S.A.

8:45 a.m.

136-O. Ametoctradin: A new oomycete-specific fungicide. K. KLAPPACH (1), K. Walker (2). (1) BASF, Limburgerhof, Germany; (2) BASF, Research Triangle Park, NC, U.S.A.

9:00 a.m.

137-O. A new fungicide for control of Phytophthora capsici on vegetable crops. P. JI (1), J. Yin (1), M. Purvis (1), A. S. Csinos (1), L. J. Newsom (2). (1) Dept. of Plant Pathology, University of Georgia, Tifton, GA, U.S.A.; (2) BASF Corporation, Tifton, GA, U.S.A.

9:15 a.m.

138-O. A new fungicide for control of oomycete diseases of vine and vegetable crops. K. A. WALKER (1), J. S. Barnes (1), L. J. Newsom (2). (1) BASF, Res. Triangle Park, NC, U.S.A.; (2) BASF, Tifton, GA, U.S.A.

9:30 a.m.

139-O. Luna fungicides for the control of diseases of horticultural crops. L. FOUGHT (1), G. H. Musson (2), H. Young (2). (1) Bayer CropScience, Fresno, CA, U.S.A.; (2) Bayer CropScience, Res. Triangle Park, NC, U.S.A.

9:45 a.m.

140-O. The impact of a strobilurin fungicide and other pesticides on soybean yield and yield components. R. HENRY (1), K. Wise (1). (1) Purdue University, West Lafayette, IN, U.S.A.

10:00 a.m.

Break

10:15 a.m.

141-O. Oxidized forms of silver as safe, effective seed treatments. M. W. HARDING (1), D. A. Sowa (2), R. J. Howard (3), M. E. Olson (2). (1) Innovotech Inc., Brooks, AB, Canada; (2) Innovotech Inc., Edmonton, AB, Canada; (3) Alberta Agriculture and Rural Development, Brooks, AB, Canada

10:30 a.m.

142-O. A new product for Peronospora and Pseudoperonospora control in ornamentals. R. J. KEESE (1), K. E. Kalmowitz (2), C. Palmer (3). (1) BASF Corp., Research Triangle Park, NC, U.S.A.; (2) BASF Corp., Raleigh, NC, U.S.A.; (3) IR-4 Project, Rutgers, The State University of New Jersey, Princeton, NJ, U.S.A.

10:45 a.m.

143-O. Efficacy of ametoctradin + dimethomorph for control of Phytophthora species infecting ornamental plants in the eastern United States. D. J. NORMAN (1), M. M. Benson (2), M. L. Daughtrey (3). (1) University of Florida, Apopka, FL, U.S.A.; (2) North Carolina State University, Raleigh, NC, U.S.A.; (3) Cornell University, Long Island, NY, U.S.A.

11:00 a.m.

144-O. A survey of fungicide resistance in the Venturia inaequalis populations of Indiana and Michigan. K. S. CHAPMAN (1), G. Sundin (2), J. Beckerman (1). (1) Purdue University, West Lafayette, IN, U.S.A.; (2) Michigan State University, East Lansing, MI, U.S.A.

11:15 a.m.

145-O. Competitiveness of Penicillium expansum isolates with reduced sensitivity to fludioxonil and pyrimethanil during infection of apple fruit. J. Adaskaveg (1), H. FORSTER (2). (1) University of California, Riverside, CA, U.S.A.; (2) University of California, Davis, CA, U.S.A.

Defense Responses/Biology of Pathogens

Sunday, August 8; 1:00 – 4:00 p.m.; 207AB

Sections: Molecular/Cellular/Plant-Microbe Interactions; Biology of Pathogens
Moderator(s): Pankaj Trivedi, Citrus Res. and Education Center, University of Florida/IFAS, Lake Alfred, FL, U.S.A. 

1:00 p.m.

12-O. GmFAD3 genes mediate developmental and defense-related physiology in soybean. A. SINGH (1), M. El-Habbak (1), S. Ghabrial (1), A. Kachroo (1). (1) University of Kentucky, Lexington, KY, U.S.A.

1:15 p.m.

13-O. Characterization of salicylate hydroxylase of ‘Candidatus Liberibacter asiaticus’ and its role in plant defense suppression. P. TRIVEDI (1), N. Wang (1). (1) Citrus Res. and Education Center, University of Florida/IFAS, Lake Alfred, FL, U.S.A.

1:30 p.m.

14-O. A role for WRKY proteins in the low 18:1-derived defense signaling pathway. Q. GAO (1), D. Navarre (2), A. Kachroo (1). (1) University of Kentucky, Lexington, KY, U.S.A.; (2) USDA-ARS, Washington State University, Prosser, WA, U.S.A.

1:45 p.m.

15-O. Identification and application of the rice broad-spectrum blast resistance gene Pigm. Z. HE (1), Y. Deng (2). (1) Shanghai Institutes for Biological Sciences, CAS, Shanghai, PRC Peoples Rep of China; (2) Shanghai, PRC Peoples Rep of China

2:00 p.m.

16-O. Nonhost resistance response at the nucleosome level. L. HADWIGER (1). (1) Washington State University, Pullman, WA, U.S.A.

2:15 p.m.

17-O. Oleate-regulated signaling and plant defense. P. Kachroo (1), A. Kachroo (1), M. K. MANDAL (1). (1) University of Kentucky, Dept. of Plant Pathology, Lexington, KY, U.S.A.

2:30 p.m.

Break

2:45 p.m.

18-O. Identification of the molecular make-up of the Potato virus Y strain PVYZ. C. KERLAN (1), O. Nikolaeva (1), X. Hu (1), T. Meacham (1), S. Gray (2), A. Karasev (1). (1) University of Idaho, Moscow, ID, U.S.A.; (2) USDA-ARS, Cornell University, Ithaca, NY, U.S.A.

3:00 p.m.

19-O. Sequence analysis of Raspberry latent virus suggests a new genus of dicot infecting reoviruses. D. QUITO (1), R. R. Martin (2). (1) Oregon State University, Corvallis, OR, U.S.A.; (2) Horticultural Crops Res. Unit, USDA-ARS, Corvallis, OR, U.S.A.

3:15 p.m.

20-O. Insights into common functional domains of tospovirus NSm proteins. W. Li (1), D. J. Lewandowski (2), M. E. Hilf (3), S. ADKINS (3). (1) University of Florida, Lake Alfred, FL, U.S.A.; (2) The Ohio State University, Columbus, OH, U.S.A.; (3) USDA ARS USHRL, Ft. Pierce, FL, U.S.A.

3:30 p.m.

21-O. Influence of Xylella fastidiosa on mineral content of infected host plants. L. DE LA FUENTE (1), L. C. Cruz (1), J. K. Parker (1), P. A. Cobine (1). (1) Auburn University, Auburn University, AL, U.S.A.

3:45 p.m.

22-O. The Egestion-Salivation Hypothesis: Evidence for the role of vector saliva in the inoculation mechanism of Xylella fastidiosa. E. A. BACKUS (1), K. Andrews (2), J. M. Labavitch (3), C. Greve (3). (1) USDA ARS, Parlier, CA, U.S.A.; (2) Australian Dept. of Primary Industries, Attwood, Australia; (3) University of California, Davis, CA, U.S.A.

Detection & Diagnosis

Tuesday, August 10; 8:30 – 11:30 a.m.; 208B

Sections: Molecular/Cellular/Plant-Microbe Interactions; Diseases of Plants
Moderator(s): John Q. Xia, AC Diagnostics, Inc., Fayetteville, AR, U.S.A.

8:30 a.m.

56-O. Macroarray detection of fungal turfgrass pathogens. E. N. NJAMBERE (1), B. Clarke (1), N. Zhang (1). (1) Rutgers The State University of New Jersey, New Brunswick, NJ, U.S.A.

8:45 a.m.

AWARD 57-O. A tag-array minisequencing-based system for detecting and genetic fingerprinting Wheat streak mosaic virus: Implications for plant pathogen forensics. T. BROWN (1), U. Melcher (1), J. Fletcher (1). (1) Oklahoma State University, Stillwater, OK, U.S.A.

9:00 a.m.

58-O. Developing a taxonomic identification system based on microsatellites of Phytophthora species. J. M. DEL CASTILLO (1), A. J. Bernal (1), S. Restrepo (1). (1) Univ De Los Andes, Bogota, Colombia

9:15 a.m.

59-O. Development of a high-throughput and fast system for testing transgenic resistance constructs derived from Grapevine fanleaf virus. J. E. OLIVER (1), M. Fuchs (1). (1) Cornell University, Geneva, NY, U.S.A.

9:30 a.m.

60-O. A multiplex TaqMan assay for detection and differentiation of Leptosphaeria maculans and L. biglobosa, causal agents of canola blackleg. W. Leonard (1), X. LI (1), D. S. Smith (1), J. Nie (1), T. Dumonceaux (2). (1) Canadian Food Inspection Agency, Charlottetown, PE, Canada; (2) Agriculture and Agri-Food Canada, Saskatoon, SK, Canada

9:45 a.m.

61-O. Field detection of Phytophthora ramorum DNA within thirty minutes. R. C. BOHANNON (1), P. Russell (1). (1) Agdia Inc., Elkhart, IN, U.S.A.

10:00 a.m.

Break

10:15 a.m.

62-O. Potential viral threats to Miscanthus x giganteus and switchgrass production for bioenergy in the United States. B. O. AGINDOTAN (1), M. O. Ahonsi (2), M. E. Gray (2), C. A. Bradley (2). (1) University of Illinois, Urbana, IL, U.S.A.; (2) Energy Biosciences Institute, University of Illinois, Urbana-Champaign, Urbana, IL, U.S.A.

10:30 a.m.

63-O. Genetically diverse isolates of Grapevine virus A are present in Washington vineyards. T. MEKURIA (1), R. A. Naidu (2). (1) Washington State University, IAREC, Prosser, WA, U.S.A.; (2) Washington State University, Irrigated Agriculture Res. and Extension Center, Prosser, WA, U.S.A.

10:45 a.m.

64-O. Development and application of a single-tube immunocapture real-time PCR technology for sensitive detection of a panel of viruses in crop plants. K. LING (1), C. Feng (2), J. Q. Xia (3). (1) USDA ARS, Charleston, SC, U.S.A.; (2) University of Arkansas, Fayetteville, AR, U.S.A.; (3) AC Diagnostics, Inc., Fayetteville, AR, U.S.A.

11:00 a.m.

65-O. Interception, identification, and molecular characterization of three Potato virus S isolates infecting potato germplasm introduced from South America. J. A. ABAD (1), Y. Lin (2), C. J. Maroon-Lango (1), C. Loschinkohl (1), M. R. Smither (1), H. R. Pappu (2). (1) USDA APHIS PPQ PHP Plant Germplasm Quarantine Program, Beltsville, MD, U.S.A.; (2) Plant Pathology Dept., Washington State University, Pullman, WA, U.S.A.

11:15 a.m.

66-O. Sensitive and cost-effective immunocapture RT-PCR for routinely viral detection in large number of plant samples. J. Q. XIA (1), K. Ling (2). (1) AC Diagnostics, Inc., Fayetteville, AR, U.S.A.; (2) USDA-ARS, U.S. Vegetable Laboratory, Charleston, SC, U.S.A.

Disease Management – A

Tuesday, August 10; 1:00 – 3:00 p.m.; 217BC

Section: Plant Disease Management
Moderator: Rick D. Peters, Agriculture & Agri-Food Canada, Charlottetown, PE, Canada

1:00 p.m.

100-O. Spatial heterogeneity of leaf wetness duration in winter wheat canopy and its influence on plant disease epidemiology. A. Mahtour (1), M. El Jarroudi (1), F. Giraud (2), P. Delfosse (3), L. Huber (4), L. Hoffmann (3), B. TYCHON (1). (1) Arlon, Belgium; (2) Martillac, France; (3) Belvaux, Luxembourg; (4) Grignon, France

1:15 p.m.

101-O. Assessment of the night weather parameters and their use in forecasting model of leaf rust. M. EL JARROUDI (1), F. Giraud (2), P. Delfosse (3), L. Hoffmann (3), H. Maraite (4), B. Tychon (5). (1) University of Liege, Arlon, Belgium; (2) Martillac, France; (3) Belvaux, Luxembourg; (4) Louvain-la-Neuve, Belgium; (5) Arlon, Belgium

1:30 p.m.

102-O. Evaluation of leaf removal timing and method and gibberellic acid for grape bunch rot management. B. HED (1), H. K. Ngugi (2), J. W. Travis (2). (1) Lake Erie Regional Grape Research & Extention Ctr., North East, PA, U.S.A.; (2) Penn State Fruit Res. and Extension Center, Biglerville, PA, U.S.A.

1:45 p.m.

103-O. A comprehensive management strategy for Sclerotinia rot of carrots. R. D. PETERS (1), K. R. Sanderson (1). (1) Agriculture & Agri-Food Canada, Charlottetown, PE, Canada

2:00 p.m.

104-O. Commercial extracts of the brown seaweed Ascophyllum nodosum and silicon reduce plant death due to Fusarium solani and increase yields of cucurbits. G. E. Brust (1), R. E. ROSS (2), J. Jayaraj (3). (1) University of Maryland, Upper Marlboro, MD, U.S.A.; (2) Acadian Sea Plants LLC, Monroe, NC, U.S.A.; (3) The University of the West Indies, St. Augustine, Trinidad

2:15 p.m.

105-O. Impact of bispyribac-sodium on annual bluegrass control and brown patch severity in tall fescue. M. A. CUTULLE (1), B. J. Horvath (2), J. Derr (3), A. Nichols (3), D. McCall (4. (1) Virginia Tech, Ellicott City, MD, U.S.A.; (2) University of Tennessee, Knoxville, TN, U.S.A.; (3) Virginia Tech, Virginia Beach, VA, U.S.A.; (4) Virginia Tech, Blacksburg, VA, U.S.A.

2:30 p.m.

106-O. Disease management in strawberry production: The Philippine experience. L. M. VILLANUEVA (1). (1) Benguet State University, La Trinidad, Benguet, Philippines

2:45 p.m.

107-O. A breakthrough in the field of agriculture. K. VADIVEL (1). (1) Annamalai University, Chidambaram, India

Disease Management – B

Tuesday, August 10; 1:00 – 3:00 p.m.; 208B

Section: Diseases of Plants
Moderator: Michelle M. Moyer, Cornell University NYSAES, Geneva, NY, U.S.A.; Mohammad Babadoost, University of Illinois, Urbana, IL, U.S.A.

1:00 p.m.

AWARD 108-O. Probability modeling of pecan scab using weather variables as inputs. A. F. PAYNE (1), D. L. Smith (1). (1) Oklahoma State University, Stillwater, OK, U.S.A.

1:15 p.m.

109-O. Seasonal ascospore release by Erysiphe necator and impact upon epidemic severity of grape powdery mildew. M. M. MOYER (1), D. M. Gadoury (1), W. F. Wilcox (1), R. C. Seem (1). (1) Cornell University NYSAES, Geneva, NY, U.S.A.

1:30 p.m.

110-O. Etiology of branch dieback of olive trees (Olea europaea L.) in California. J. R. URBEZ-TORRES (1), F. Peduto (1), W. D. Gubler (1). (1) University of California, Davis, CA, U.S.A.

1:45 p.m.

AWARD 111-O. Assessment of Strawberry mild yellow edge virus infection in different ecotypes of the Chilean native strawberry Fragaria chiloensis (L.) Duch. P. F. ROJAS (1), C. Sandoval (1), P. D. Caligari (1), R. R. Martin (2). (1) Universidad de Talca, Talca, Chile; (2) USDA-ARS, Corvallis, OR, U.S.A.

2:00 p.m.

112-O. Powdery scab effect on potato Solanum tuberosum and S. phureja. E. Gilchrist (1), J. Soler (2), J. G. MORALES (1), S. Reynaldi (1). (1) Universidad Nacional de Colombia, Departamento Ciencias Agronómicas, Medellin, Colombia; (2) Universidad Nacional de Colombia, Medellin, Colombia

2:15 p.m.

113-O. Agrobacterium-mediated transformation is an efficient tool for insertional mutagenesis of the vascular wilt fungus, V. dahliae. K. MARUTHACHALAM (1), S. Kang (2), S. J. Klosterman (3), K. V. Subbarao (4). (1) University of California, Salinas, CA, U.S.A.; (2) Pennsylvania State University, University Park, PA, U.S.A.; (3) USDA ARS, Salinas, CA, U.S.A.; (4) University of California, Davis, CA, U.S.A.

2:30 p.m.

114-O. Application of intragenic technology for development of disease-resistant potato. G. P. PONCIANO (1), C. M. Rommens (2), D. R. Rockhold (1), K. F. McCue (1), M. C. Whalen (3), W. R. Belknap (1). (1) USDA ARS, Albany, CA, U.S.A.; (2) J. R. Simplot Company, Simplot Plant Sciences, Boise, ID, U.S.A.; (3) Pacific West Area USDA-ARS, Albany, CA, U.S.A.

2:45 p.m.

115-O. Downy mildew of basil in Illinois. M. BABADOOST (1). (1) University of Illinois, Urbana, IL, U.S.A.

Epidemiology & Ecology/Plant Diseases

Wednesday, August 11; 8:30 – 11:30 a.m.; 208B

Sections: Epidemiology/Ecology/Environmental Biology; Plant Disease Management
Moderator(s): Adam Sparks, Kansas State University, Manhattan, KS, U.S.A.; Margaret L. Ellis, Ohio State University, OARDC, Wooster, OH, U.S.A.

8:30 a.m.

146-O. Multiscale spatial heterogeneity in disease incidence of Fusarium head blight of wheat. A. B. KRISS (1), P. A. Paul (1), L. V. Madden (1). (1) Ohio State University, Wooster, OH, U.S.A.

8:45 a.m.

147-O. Probability distributions for disease severity and time-to-event data. N. MCROBERTS (1), L. V. Madden (2). (1) Scottish Agric. College, Edinburgh, United Kingdom; (2) OARDC, Ohio State University, Wooster, OH, U.S.A.

9:00 a.m.

148-O. Phenotyping the components of resistance as a bottleneck to breed rice varieties with suitable resistance to sheath blight. L. WILLOCQUET (1), M. Noel (1), N. Magculia (1), J. Lore (2), A. Srinivasachary (1), S. Savary (1). (1) IRRI, Los Banos, Philippines; (2) PAU, Ludhiana, India

9:15 a.m.

AWARD 149-O. Effect of environment, cultivar, and disease on soft red winter wheat (Triticum aestivum) production in Wisconsin. K. LACKERMANN (1), J. Gaska (1), M. Martinka (1), S. Conley (1), P. Esker (1). (1) University of Wisconsin, Madison, WI, U.S.A.

9:30 a.m.

150-O. Mapping the future: Metamodels for scaling potato late blight risk analysis in climate change scenarios. A. SPARKS (1), G. Forbes (2), R. Hijmans (3), K. Garrett (1). (1) Kansas State University, Manhattan, KS, U.S.A.; (2) International Potato Center, Lima, PERU; (3) University of California, Davis, CA, U.S.A.

9:45 a.m.

151-O. Interaction between pattern, process, and scale in plant disease epidemics. P. SKELSEY (1), K. A. Garrett (1), K. A. With (1). (1) Kansas State University, Manhattan, KS, U.S.A.

10:00 a.m.

Break

10:15 a.m.

152-O. Response of hard red spring wheat germplasm to the bacterial leaf streak pathogen (Xanthomonas campestris pv. translucens). Y. R. KANDEL (1), L. E. Osborne (1), K. D. Glover (1), C. Tande (1). (1) South Dakota State University, Brookings, SD, U.S.A.

10:30 a.m.

153-O. Survey of Stagonospora nodorum toxins and wheat sensitivity genes in the southeastern U.S. A. D. ZEARFOSS (1), T. L. Friesen (2), P. S. Ojiambo (1), C. Cowger (3). (1) Dept. of Plant Pathology, North Carolina State University, Raleigh, NC, U.S.A.; (2) USDA-ARS, Dept. of Plant Pathology, North Dakota State University, Fargo, ND, U.S.A.; (3) USDA-ARS, Dept. of Plant Pathology, North Carolina State University, Raleigh, NC, U.S.A.

10:45 a.m.

154-O. Identifying resistance to Pythium irregulare and Fusarium graminearum in soybean. M. L. ELLIS (1), P. A. Paul (1), A. E. Dorrance (1). (1) Ohio State University, OARDC, Wooster, OH, U.S.A.

11:00 a.m.

155-O. Response of U.S. bottle gourd (Lagenaria siceraria) plant introductions (PI) to crown rot caused by Phytophthora capsici. C. S. KOUSIK (1), J. A. Thies (2). (1) USDA ARS, Charleston, SC, U.S.A.; (2) U.S. Vegetable Laboratory, USDA ARS, Charleston, SC, U.S.A.

11:15 a.m.

AWARD 156-O. Interactions between Fusarium virguliforme and Phialophora gregata in soybean using greenhouse studies. C. MATTUPALLI (1), P. D. Esker (1). (1) University of Wisconsin, Madison, WI, U.S.A.

Fungicides/Host Responses

Tuesday, August 10; 8:30 – 11:30 a.m.; 203B

Sections: Plant Disease Management; Molecular/Cellular/Plant-Microbe Interactions

Moderator: Markus Frank, BASF S.E., Limburgerhof, Germany; Yinong Yang, Dept. of Plant Pathology and Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, U.S.A.

8:30 a.m.

67-O. Resistance to DMI fungicides in Venturia inaequalis from Pennsylvania. E. E. PFEUFER (1), J. W. Travis (1), H. K. Ngugi (1). (1) Penn State University, Biglerville, PA, U.S.A.

8:45 a.m.

68-O. Stability and fitness of pyraclostrobin- and boscalid-resistant phenotypes in field isolates of Botrytis cinerea from apple. Y. KIM (1), C. Xiao (1). (1) Washington State University, TFREC, Wenatchee, WA, U.S.A.

9:00 a.m.

69-O. Molecular characterization of boscalid resistance in field isolates of Botrytis cinerea from apple in Washington State. Y. YIN (1), Y. Kim (1), C. Xiao (1). (1) Washington State University, TFREC, Wenatchee, WA, U.S.A.

9:15 a.m.

70-O. Efficacy of phosphonate treatments against sudden oak death in tanoaks. D. SCHMIDT (1), M. Garbelotto (1). (1) University of California, Berkeley, CA, U.S.A.

9:30 a.m.

71-O. Mutations in the target protein of succinate-dehydrogenase inhibitors (SDHI) conferring changes in fungicide sensitivity. M. FRANK (1), A. Glaettli (1), S. Schlehuber (1), G. Stammler (1). (1) BASF S.E., Limburgerhof, Germany

9:45 a.m.

72-O. Sensitivity of Didymella bryoniae to DMI and carboxamide fungicides. A. THOMAS (1), K. L. Stevenson (1), D. B. Langston (1). (1) University of Georgia, Tifton, GA, U.S.A.

10:00 a.m.

Break

10: 15 a.m.

73-O. Alteration of cytokinin biosynthesis by Ustilago maydis: Impacts on pathogenesis. E. N. MORRISON (1), R. Emery (1), B. J. Saville (1). (1) Trent University, Peterborough, ON, Canada

10:30 a.m.

74-O. Antagonistic role of ethylene and abscisic acid in mediating rice sheath blight resistance. J. Zhang (1), D. Park (2), Y. YANG (1). (1) Dept. of Plant Pathology and Huck Institute of Life Sciences, Pennsylvania State University, University Park, PA, U.S.A.; (2) National Yeongnam Agricultural Res. Institute, Rural Development Administration, Milyang, Korea

10:45 a.m.

75-O. Ethylene biosynthesis and its effect on rice resistance to fungal infection. E. E. HELLIWELL (1), Q. Wang (2), Y. Yang (2). (1) Dept. of Plant Pathology and Huck Institutes of Life Sciences, Pennsylvania State University, State College, PA, U.S.A.; (2) Dept. of Plant Pathology and Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, U.S.A.

11:00 a.m.

76-O. Factors contributing to abscisic acid-mediated predisposition to disease caused by Phytophthora capsici. M. F. PYE (1), T. V. Roubtsova (1), M. V. DiLeo (2), J. D. MacDonald (1), R. M. Bostock (1). (1) University of California, Davis, CA, U.S.A.; (2) Ithaca, NY, U.S.A.

11:15 am.

77-O. Saccharin-induced systemic acquired resistance in soybean. P. SRIVASTAVA (1), S. George (1), J. J. Marois (1), D. L. Wright (2), D. R. Walker (3). (1) IFAS, University of Florida, Quincy, FL, U.S.A.; (2) Quincy, FL, U.S.A.; (3) USDA-ARS, Urbana, IL, U.S.A.

Molecular & Cellular Biology

Tuesday, August 10; 1:00 – 3:00 p.m.; 207CD

Section: Molecular/Cellular/Plant-Microbe Interactions

Moderator: Deanna L. Funnell-Harris, USDA ARS, University of Nebraska, Lincoln, NE, U.S.A.; Manuel D. Ospina-Giraldo, Lafayette College, Easton, PA, U.S.A.

 

116-O. WITHDRAWN Phytopathology 100:S127

1:00 p.m.

117-O. Survey of small RNA during the suppression of soybean defense responses by Pseudomonas syringae pv. glycinae avrB. O. RADWAN (1), B. Calla (1), L. Vodkin (1), M. Hudson (1), S. J. Clough (2). (1) University of Illinois, Dept. of Crop Science, Urbana, IL, U.S.A.; (2) University of Illinois, Dept. of Crop Science and USDA, Urbana, IL, U.S.A.

1:15 p.m.

118-O. Molecular approaches for unraveling phytopathogenic fungi—Macrophomina phaseolina in cluster bean. A. CHAUDHURY (1). (1) Dept. of Bio & Nano Technology, Giuru Jambheshwar University of Science & Technology, Hisar, Haryana, India

1:30 p.m.

119-O. The gene FvNoxR of Fusarium verticillioides is required for its female fertility, normal hyphal ROS localization, and full virulence on maize. L. GUO (1), G. A. Kuldau (1). (1) Pennsylvania State University, University Park, PA, U.S.A.

1:45 p.m.

120-O. Dynamics and single nucleotide polymorphisms of rice blast resistance alleles at the Pik locus. Q. PAN (1). (1) South China Agricultural University, Guangzhou, Guangdong, PRC Peoples Rep of China

2:00 p.m.

121-O. Alteration in lignin biosynthesis restricts growth of Fusarium species in brown midrib sorghum. D. L. FUNNELL-HARRIS (1), J. F. Pedersen (1), S. E. Sattler (1). (1) USDA ARS, Lincoln, NE, U.S.A.

2:15 p.m.

122-O. Use of lesioned mutants to characterize the genetic network underlying control of the maize hypersensitive response. P. BALINT-KURTI (1), C. Weil (2), S. Chintamanani (3), R. Dhawan (4), A. Negeri (4), A. Garg (3), B. Venkata (3), J. Green (5), J. Harnsomburana (5), J. Palmer (2), V. Chaikam (2), C. Shyu (5), G. Johal (3). (1) USDA-ARS, North Carolina State University, Raleigh, NC, U.S.A.; (2) Dept. of Agronomy, Purdue University, West Lafayette, IN, U.S.A.; (3) Dept. of Botany and Plant Pathology, Purdue University, West Lafayette, IN, U.S.A.; (4) Dept. of Plant Pathology, NCSU, Raleigh, NC, U.S.A.; (5) Informatics Inst., University of Missouri-Columbia, Columbia, MO, U.S.A.

2:30 p.m.

123-O. Gene regulation during asexual development in the oomycete Phytophthora infestans. Q. XIANG (1), H. Judelson (1). (1) Dept. of Plant Pathology and Microbiology, University of California, Riverside, CA, U.S.A.

Mycology

Tuesday, August 10; 8:30 – 11:30 a.m.; 217BC

Section: Biology of Pathogens
Moderator: Amanda J. Gevens, University of Wisconsin, Madison, WI, U.S.A.; Rebecca Sweany, Louisiana State University Ag Center, Baton Rouge, LA, U.S.A.

8:30 a.m.

78-O. Mating between Aspergillus flavus cryptic species I and II. K. E. DAMANN (1), C. DeRobertis (1), R. Sweany (1). (1) Dept. of Plant Pathology & Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, LA, U.S.A.

8:45 a.m.

79-O. A comparison of soil and corn kernel Aspergillus flavus populations: Evidence for niche specialization. R. R. SWEANY (1), K. E. Damann (1). (1) Louisiana State University Ag Center, Baton Rouge, LA, U.S.A.

9:00 a.m.

80-O. Phylogenetic relations within Aspergillus parasiticus imply host adaptation and global transport of aflatoxin-producing fungi. N. GARBER (1), L. C. Grubisha (2), A. Ortega-Beltran (1), C. Probst (1), P. J. Cotty (2). (1) University of Arizona, Tucson, AZ, U.S.A.; (2) USDA-ARS, University of Arizona, Tucson, AZ, U.S.A.

9:15 a.m.

AWARD 81-O. Relationships between in vivo and in vitro aflatoxin production: Reliable prediction of fungal ability to contaminate maize with aflatoxins. C. PROBST  (1), P. J. Cotty (2). (1) University of Arizona, Tucson, AZ, U.S.A.; (2) University of Arizona, USDA-ARS, Tucson, AZ, U.S.A.

9:30 a.m.

82-O. Spinach seed a source of Verticillium dahliae in lettuce in coastal California. Z. K. ATALLAH (1), K. Maruthachalam (1), K. V. Subbarao (1). (1) University of California-Davis, Salinas, CA, U.S.A.

9:45 a.m.

83-O. Species limits and evolution in Verticillium, a group of vascular wilt-pathogens of global importance. P. INDERBITZIN (1), R. M. Bostock (1), R. M. Davis (1), K. V. Subbarao (1). (1) University of California, Davis, CA, U.S.A.

10:00 a.m. Break
10:15 a.m.

84-O. Gene encoding a c-type cyclin in Mycosphaerella graminicola is involved in melanin biosynthesis, stress response, and pathogenicity. Y. CHOI (1), S. B. Goodwin (1). (1) USDA-ARS, West Lafayette, IN, U.S.A.

10:30 a.m.

85-O. Sequenced restriction-associated DNA (RAD) markers for SNP discovery in the genus Colletotrichum. J. CROUCH (1), P. Oudemans (2), J. Polashock (3). (1) USDA ARS, Cereal Disease Lab, St. Paul, MN, U.S.A.; (2) Rutgers University, Chatsworth, NJ, U.S.A.; (3) USDA ARS, Chatsworth, NJ, U.S.A.

10:45 a.m.

86-O. Identification and characterization of cucurbit powdery mildew in Florida. A. J. GEVENS (1), G. S. Maia (2). (1) University of Wisconsin, Madison, WI, U.S.A.; (2) University of Florida, Gainesville, FL, U.S.A.

11:00 a.m.

87-O. In vitro assessment of Sclerotinia homoeocarpa resistance to fungicides and plant growth regulators. C. Ok (1), J. T. Popko (1), K. Campbell-Nelson (1), G. JUNG (1). (1) University of Massachusetts, Amherst, MA, U.S.A.

11:15 .a.m.

88-O. Genetic diversity of anastomosis group 3 of Rhizoctonia solani isolates from potato in Iran by PCR-RFLP. F. EGHBALIAN (1), H. Zamanizadeh (1), B. Morid (2), S. Hajmansoor (3). (1) Dept. of Plant Pathology, Science and Res. Branch, Islamic Azad University, Tehran, Iran; (2) Dept. of Plant Protection, Takestan Branch, Islamic Azad University, Tehran, Iran; (3) Science and Res. Branch, Islamic Azad University, Tehran, Iran

Turfgrass/Pathogen Diversity

Sunday, August 8; 1:00 – 4:00 p.m.; 208B

Sections: Diseases of Plants; Epidemiology/Ecology/Environmental Biology
Moderator(s): Bimal S. Amaradasa, Virginia Tech, Blacksburg, VA, U.S.A.; Kirk D. Broders, School of Environmental Sciences, University of Guelph, Guelph, ON, Canada 

1:00 p.m.

23-O. First characterization of a new Exserohilum foliar disease on warm season turfgrasses. Y. JO (1). (1) Texas A&M University, College Station, TX, U.S.A.

1:15 p.m.

AWARD 24-O. Effects of fertility and cultivation practices on large patch disease of zoysiagrass, caused by Rhizoctonia solani AG 2-2 LP. K. OBASA (1), R. St. John (1), D. Bremer (1), J. Fry (1), M. Kennelly (1). (1) Kansas State University, Manhattan, KS, U.S.A.

1:30 p.m.

25-O. Effectiveness of early-season fungicide programs for the control of Sclerotinia homoeocarpa, the causal agent of dollar spot. C. WILSON (1), P. Koch (1), J. Kerns (1). (1) University of Wisconsin, Madison, WI, U.S.A.

1:45 p.m.

26-O. Novel fungicide timings to target important turfgrass diseases in the upper Midwest. P. KOCH (1), J. Kerns (2). (1) University of Wisconsin-Madison, Verona, WI, U.S.A.; (2) University of Wisconsin, Madison, WI, U.S.A.

2:00 p.m.

27-O. Field efficacy of propiconazole on diverse Sclerotinia homoeocarpa population structures. J. T. POPKO (1), C. Ok (2), M. T. McGrath (3), G. Jung (2). (1) Dept. of Plant, Soil and Insect Science, University of Massachusetts-Amherst, Hadley, MA, U.S.A.; (2) Dept. of Plant, Soil and Insect Science, University of Massachusetts, Amherst, MA, U.S.A.; (3) Dept. of Plant Pathology and Plant-Microbe Biology, Cornell University, Riverhead, NY, U.S.A.

2:15 p.m.

28-O. UP-PCR analysis and UP-PCR cross-blot hybridization for grouping of Rhizoctonia species isolated from turfgrass in Maryland and Virginia. B. S. AMARADASA (1), B. Horvath (2), D. K. Lakshman (3). (1) Virginia Tech, Blacksburg, VA, U.S.A.; (2) University of Tennessee, Knoxville, TN, U.S.A.; (3) USDA-ARS, Beltsville, MD, U.S.A.

2:30 p.m. Break
2:45 p.m.

29-O. Discovering single nucleotide polymorphisms (SNPs) in an uncharacterized fungal genome using the software EagleView to evaluate 454 sequencing data. K. D. BRODERS (1), P. J. SanMiguel (2), R. P. Westerman (2), K. E. Woeste (3), G. J. Boland (1). (1) School of Environmental Sciences, University of Guelph, ON, Canada; (2) Dept. of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, U.S.A.; (3) USDA Forest Service, Hardwood Tree Improvement and Regeneration Center, Dept. of Forestry and Natural Resources, Purdue University, West Lafayette, IN, U.S.A.

3:00 p.m.

30-O. Using microsatellite markers to assess diversity of Phytophthora sojae in Iowa. S. M. STEWART (1), A. E. Dorrance (2), A. E. Robertson (1). (1) Iowa State University, Ames, IA, U.S.A.; (2) OARDC, Wooster, OH, U.S.A.

3:15 p.m.

AWARD 31-O. Intraspecific analysis of Phytophthora nicotianae from diverse hosts and geographic locations using mitochondrial and nuclear markers. M. A. MAMMELLA (1), L. Schena (2), M. D. Coffey (3), S. O. Cacciola (4), F. N. Martin (5). (1) Dipartimento Gestione dei Sistemi Agrari e Forestali, Università Mediterranea di Reggio Calabria, Italy; USDA-ARS, Salinas, CA, U.S.A.; (2) Dipartimento Gestione dei Sistemi Agrari e Forestali, Università Mediterranea di Reggio Calabria, Italy; (3) Dept. of Plant Pathology and Microbiology, University of California, Riverside, CA, U.S.A.; (4) Dipartimento di Chimica biologica, Chimica medica e Biologia molecolare, Università degli Studi di Catania, Italy; (5) USDA-ARS, Salinas, CA, U.S.A.

3:30p.m.

32-O Diversity of Phytophthora capsici from vegetable crops in Georgia. K. JACKSON (1), J. Yin (1), A. Csinos (1), H. Scherm (2), P. Ji (1). (1) University of Georgia, Tifton, GA, U.S.A.; (2) University of Georgia, Athens, GA, U.S.A.

3:45 p.m.

33-O. Copper resistance in Xanthomonas citri subsp. citri (Xcc) and X. alfalfae subsp. citrumelonis (Xac) and comparison with other xanthomonads. F. BEHLAU (1), B. I. Canteros (2), J. H. Graham (3), J. B. Jones (1). (1) University of Florida, Gainesville, FL, U.S.A.; (2) INTA-EEA, Bella Vista, Argentina; (3) University of Florida, Lake Alfred, FL, U.S.A.

Virology/Diseases of Plants

Monday, August 9; 8:30 – 11:30 a.m.; 217BC

Sections: Molecular/Cellular/Plant-Microbe Interactions; Diseases of Plants
Moderator(s): TBD

8:30 a.m..

45-O. The role of Turnip crinkle virus capsid protein in viral systemic movement in Arabidopsis. F. QU (1), M. Cao (1), X. Ye (2), K. Willie (3), J. Lin (1), A. Simon (4), M. Redinbaugh (3), T. Morris (2). (1) OARDC Plant Pathology, Ohio State University, Wooster, OH, U.S.A.; (2) School of Biological Sciences, University of Nebraska, Lincoln, NE, U.S.A.; (3) USDA ARS, Wooster, OH, U.S.A.; (4) University of Maryland, College Park, MD, U.S.A.

8:45 a.m.

46-O. Role of photoreceptors in R protein-mediated resistance to Turnip crinkle virus. R. JEONG (1), A. Chandra-Shekara (2), A. Kachroo (1), P. Kachroo (1). (1) University of Kentucky, Lexington, KY, U.S.A.; (2) Dow AgroSciences, Indianapolis, IN, U.S.A.

9:00 a.m.

47-O. Metagenomic analysis of mycoviruses in grapevines. M. ALRWAHNIH (1), S. Daubert (1), A. Rowhani (1). (1) University of California, Davis, CA, U.S.A.

9:15 a.m.

48-O. Changes in flavonoid biosynthetic pathway genes and anthocyanins due to virus infection in grapevine (Vitis vinifera L.) leaves. L. R. GUTHA (1), L. F. Casassa (1), J. F. Harbertson (1), R. A. Naidu (1). (1) Washington State University, Prosser, WA, U.S.A.

9:30 a.m.

49-O. Development of infectious full-length cDNA clone of Grapevine leafroll-associated virus 3. S. JARUGULA (1), S. Gowda (2), W. O. Dawson (2), R. A. Naidu (1). (1) Dept. of Plant Pathology, Washington State University, IAREC, Prosser, WA, U.S.A.; (2) Citrus Res. and Education Center, University of Florida, Lake Alfred, FL, U.S.A.

9:45 a.m.

50-O. GFP is efficiently expressed by Wheat streak mosaic virus using a range of Tritimovirus NIa cleavage sites and forms dense aggregates in cereal hosts. S. TATINENI (1), R. French (1). (1) USDA, ARS, University of Nebraska, Lincoln, NE, U.S.A.

10:00 a.m. Break
10:15 a.m.

51-O. Rose rosette and redbud yellow ringspot are caused by two new emaraviruses. A. G. LANEY (1), R. Gergerich (1), K. Keller (2), R. Martin (2), I. Tzanetakis (1). (1) University of Arkansas, Fayetteville, AR, U.S.A.; (2) USDA-ARS, Corvallis, OR, U.S.A.

10:30 a.m.

52-O. Development of ELISA and qPCR for Squash vein yellowing virus detection. C. WEBSTER (1), W. Li (2), C. Kousik (3), S. Adkins (1). (1) USDA ARS, Ft. Pierce, FL, U.S.A.; (2) University of Florida, Lake Alfred, FL, U.S.A.; (3) USDA-ARS, Charleston, SC, U.S.A.

10:45 a.m.

53-O. Biological and molecular characterization of a cucumber isolate of Melon necrotic spot virus from Ohio. D. LEWANDOWSKI (1). (1) The Ohio State University, Columbus, OH, U.S.A.

11:00 a.m.

54-O. Seasonal dynamics of black leaf mold (Pseudocercospora fuligena) on tomato (Solanum lycopersicum) grown under protected cultivation in Thailand. Z. MERSHA (1), B. Hau (2). (1) University of Florida, Tropical Res. and Education Centre, Homestead, FL, U.S.A.; (2) Leibniz Universitaet Hannover, Hannover, Germany

11:15 a.m.

55-O. Effects of extracts of some plants on the wet rot of Amaranthus cruentus L. induced by Choanephora cucurbitarum and on the performance of the crop. A. N. AWURUM (1). (1) Michael Okpara University of Agriculture, Umdike, Umuahia, Abia State, Nigeria

Virology/Virology & Nematology

Tuesday, August 10; 8:30 – 11:30 a.m.; 208A

Sections: Molecular/Cellular/Plant-Microbe Interactions
Moderator: Andreas Westphal, Julius Kühn-Institut., Federal Research Centre for Cultivated Plants, Münster, Germany; John Carr, University of Cambridge, Cambridge, United Kingdom

 

8:30 a.m.

89-O. Disruption of the salicylate and jasmonate signaling pathways by the Cucumber mosaic virus 2b RNA silencing suppressor. M. G. Lewsey (1), A. M. Murphy (1), D. MacLean (2), N. Dalchau (3), J. Westwood (1), K. Macaulay (1), M. H. Bennett (4), M. Moulin (1), D. E. Hanke (1), G. Powell (4), A. G. Smith (1), H. Ziebell (5), J. CARR (1). (1) University of Cambridge, Cambridge, United Kingdom; (2) Sainsbury Laboratory, Norwich, United Kingdom; (3) Microsoft Res., Cambridge, United Kingdom; (4) Imperial College, London, United Kingdom; (5) Cornell University, Ithaca, NY, U.S.A.

8:45 a.m.

90-O. Exploration of further sequence data for unknown regions of Ambrossia asymptomatic virus 1. N. SOKHANDAN BASHIR (1), U. Melcher (2). (1) The University of Tabriz, Tabriz, Iran; (2) Oklahoma State University, Stillwater, OK, U.S.A.

9:00 a.m.

91-O. Subcellular localization of the replicase proteins encoded by a member of the family Betaflexiviridae. S. W. Prosser (1), C. Li (1), B. MENG (1). (1) Dept. of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada

9:15 a.m.

92-O. Mutational analysis of the putative pipo of Soybean mosaic virus with emphasis on symptom expression and virus accumulation. R. Wen (1), B. He (1), M. R. HAJIMORAD (1). (1) University of Tennessee, Knoxville, TN, U.S.A.

9:30 a.m.

AWARD 93-O. Profiling host-specific and virus-derived small RNAs in a woody perennial plant species infected with an ampelovirus. O. J. ALABI (1), Y. Zheng (2), G. Jagadeeswaran (3), R. Sunkar (3), R. A. Naidu (4). (1) Washington State University, Prosser, WA, U.S.A.; (2) Institute of Developmental Biology and Molecular Medicine and School of Life Sciences, Fudan University, Shanghai, PRC Peoples Rep of China; (3) Dept. of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK, U.S.A.; (4) Dept. of Plant Pathology, Irrigated Agriculture Res. and Extension Center, Washington State University, Prosser, WA, U.S.A.

9:45 a.m.

94-O. Assessing relationships among isolates of Wheat streak mosaic virus using single nucleotide polymorphisms. S. ROGERS (1), U. Melcher (1), R. Allen (2), J. Fletcher (1). (1) Oklahoma State University, Stillwater, OK, U.S.A.; (2) Oklahoma State University, Tulsa, OK, U.S.A.

10:00 a.m.

Break

10:15 a.m.

95-O. Tomato spotted wilt virus (Bunyaviridae, Tospovirus) infection alters feeding behavior of its vector Frankliniella occidentalis (Pergande). C. A. STAFFORD (1), G. P. Walker (2), D. E. Ullman (1). (1) University of California, Davis, CA, U.S.A.; (2) University of California, Riverside, CA, U.S.A.

10:30 a.m.

96-O. Uptake and exclusion of plant-expressed fluorescent proteins by the soybean cyst nematode Heterodera glycines. B. GAO (1), J. Bradley (1), M. Hresko (1), A. Caruano-Yzermans (1), J. Williams (1). (1) Divergence Inc., St. Louis, MO, U.S.A.

10:45 a.m.

97-O. Management of the root-knot nematode, Meloidogyne incognita on tomato in Egypt. M. M. ABD-ELGAWAD (1), S. S. Kabeil (2). (1) National Res. Center, Dokki, Egypt; (2) Mubarak City for Scientific Res. and Technology Applications, Alexandria, Egypt

11:00 a.m.

98-O. Population density development of Heterodera schachtii under susceptible, resistant, and tolerant sugar beet cultivars. A. WESTPHAL (1), M. Daub (2). (1) Julius Kühn-Institut, Federal Res. Centre for Cultivated Plants, Münster, Germany; (2) Julius Kühn-Institut, Federal Res. Centre for Cutlvated Plants, Elsdorf, Germany

11:15 a.m.

99-O. Nematode and bacterial associates of the invasive brown garden snail: Helix aspersa. K. SANCHEZ (1), C. Pagan (1), S. A. Nadler (1), E. P. Caswell-Chen (1). (1) University of California, Davis, CA, U.S.A.