• 15th I. E. Melhus Graduate Student Symposium • Advances in Gene Silencing • APS-CSPP Joint Symposium on Plant Pathology and Disease Control• Banana Production at the Crossroad: Impact of Fusarium oxysporum f.sp. cubense TR4• Blocking the Transmission of Vector-Borne Plant Pathogens, Dream or Reality? • Buzzing the Tower: Unmanned Aerial Vehicles (UAV)/Drones for Applications in Plant Pathology• Careers in Industry • Climate Cycles, Climate Forecasting, and Disease Cycles Spanning Multiple Years• Contributions from Population Genomics to Plant Pathology • Emerging Downy Mildew Diseases: Where Have We Been, Where Are We Going? • Engagement in Plant Pathology: You Can’t Start Too Early • Impact of Innovative Postharvest Practices on Trade and Food Safety • Impact of Repeat Elements on Genome Evolution and Pathogen Biology • Life Beyond the Plant: Bacterial Wars • Mycotoxins: From Production, Secretion, and Detection to Effects on Plants and Mammals • Nematology: From Microbiomes to Management • New Products & Services • Participatory Plant Disease Research: Advancing Sustainable Food Production Through Farmer-Researcher Partnerships • Physiological Basis and Modeling for Climate-Induced Changes in Forest Pathogens and Their Hosts • Phytobiome-Plant Interactions: Bridging Phytobiome Structure and Function • Phytophthora tentaculata, A Newly Introduced Nursery Pathogen and How Clean Stock Production Systems Can Limit Disease Spread • Plant Pathologists of the Future: Showcasing the Top Graduate Students from APS Division Meetings • Schroth Faces of the Future: Nematology • Seed Transmission of Vector-Borne Pathogens: Mysteries, Caveats, and Mechanisms
Organizers: Clive Bock, USDA ARS SEFTNRL, Byron, GA, U.S.A.; Peter Ojiambo, North Carolina State University, Raleigh, NC, U.S.A.; Kelsey Andersen, Monsanto Company, Creve Coeur, MO. U.S.A.Section: Professionalism/OutreachSponsoring Committees/Sponsors: Crop Loss Assessment and Risk Evaluation (CLARE) CommitteeFinancial Sponsors: Monsanto Company, APS Foundation, CLARE
The APS Crop Loss and Risk Evaluation (CLARE) Committee, in conjunction with financial support from the APS Foundation and private industry, will be sponsoring the 15th I. E. Melhus Graduate Student Symposium to be held in Pasadena, CA. This symposium, entitled “15th I. E. Melhus Graduate Student Symposium - From Local to Global: New Developments in Disease Risk Prediction and Crop Loss Assessment”, will feature five graduate student presentations highlighting research that leads to improved global food security based on disease risk prediction and crop loss assessment, plant disease epidemiology, pathogen biology and disease management strategies.
Organizers: Bhanu Priya Donda and Naidu Rayapati, Washington State University, Prosser, WA, U.S.A. Section: Biology of Pathogens Sponsoring Committee/Sponsor: VirologyFinancial Sponsors: The Samuel Roberts Noble Foundation, APS/APHIS Widely Prevalent Virus Committee, Virology Committee
The discovery of gene silencing has transformed many facets of plant biology. This special session will examine the current state of knowledge and the future potential of this elegant technology. Invited speakers will highlight the latest advances in multifaceted gene-silencing pathways encompassing novel mechanisms orchestrating host-pathogen interactions. The presentations will benefit attendees of the APS annual meeting and inspire students to pursue research in this emerging field of plant science.
Organizers: Yulin Jia, USDA, Stuttgart, AR, U.S.A.; Guo-Liang Wang, The Ohio State University, Columbus, OH, U.S.A. Section: Molecular/Cellular/Plant-Microbe Interactions Sponsoring Committees/Sponsors: APS-CSPP Working Group; Virology
This symposium will provide an overview of research that is being directed towards the identification of major resistance genes, understanding the genetic and molecular bases, and the prospects for their utilization in crop breeding and protection. Significant accomplishments on genomic interactions of important crops and their pathogens will be presented by selected speakers from both APS and CSPP and other distinguished speakers, including a graduate student from United States and China. This will include results from understanding the genetic and molecular bases of disease resistance and their interactions with environmental signaling, interactions of hosts and their parasites, and how to control parasites using genetics and pesticides. Genes that condition resistance to many economically important diseases have been identified. Genetic markers closely associated with resistance genes are useful for breeding new cultivars with increased resistance. Equally useful is the identification and isolation of the resistance genes for use in characterization of the resistance response, precision marker development, and stable incorporation of the genes into existing popular cultivars.
Organizer: Robert Kemerait, University of Georgia, Tifton, GA, U.S.A. Section: Disease Control and Pest Management Sponsoring Committees/Sponsors: Tropical Plant Pathology; Emerging Diseases and Pathogens; Diagnostics
Fusarium oxysporum f. sp. vasinfectum, race 4 (Fusarium wilt of cotton) and Fusarium oxysporum f. sp. cubense, tropical race 4 (Fusarium wilt of banana) threaten production of their respective host crops on an international scale. The objective of this special session is to both compare and contrast the pathogens, the impact of the diseases, and the political ramifications of these two diseases.
Organizers: Rodrigo Almeida, University of California, Berkeley, CA, U.S.A.; Anna Whitfield, Kansas State University, Manhattan, KS, U.S.A. Section: Ecology and Epidemiology Sponsoring Committees/Sponsors: Vector-Pathogen Complexes; Virology
Disrupting pathogen transmission is a key target for control of vector-borne pathogens. This special session will feature discussion of successful systems that target pathogen and vector factors that can disrupt the cycle of disease.
Organizers: Mathews Paret, University of Florida, Quincy, FL, U.S.A.; Jason Woodward, Texas A&M University, Lubbock, TX, U.S.A. Section: Disease Control and Pest Management Sponsoring Committees/Sponsors: Integrated Plant Disease Management; Extension
This special session will cover an exciting new area in research on applications of UAV technology in plant pathology. The proposed key speakers include two plant pathologists, an agricultural engineer, a specialist in remote sensing, and a regulator from the Federal Aviation Administration. This special session will review and cover the most current research and future potential in utilization of UAVs in applications in plant pathology.
Organizer: Rubella Goswami, Dupont Crop Protection, Newark, DE, U.S.A. Section: Professionalism/Outreach Sponsoring Committees/Sponsors: Industry; Early Career Professionals; Diversity and Equality
This special session will inform graduate students about careers for plant pathologists in the private sector. Speakers will explore the breadth of opportunities available and discuss the skills needed to obtain a position and to develop your career. Other topics will include areas that graduate school does not prepare you for in the private sector and the transition from academia into the private sector.
Organizers: David Gent, USDA-ARS, Corvallis, OR, U.S.A.; Alissa Kriss, Syngenta, Greensboro, NC, U.S.A. Section: Ecology and Epidemiology Sponsoring Committees/Sponsors: Epidemiology; Crop Loss Assessment and Risk Evaluation (CLARE) Financial Sponsors: Valent USA, Crop Loss Assessment and Risk Evaluation (CLARE) Committee
There have been several advancements in understanding short-term climate cycles, their drivers, and the association between these cycles and multiyear cycles of plant diseases. This special session will bring together climatologists, meteorologists, and pathologists to present on concepts of climate cycles, climate forecasting, and disease prediction spanning multiple seasons.
Organizers: Niklaus Grunwald, USDA ARS, Corvallis, OR, U.S.A.; Richard Hamelin, Natural Resources Canada, Vancouver, BC, Canada Section: Ecology and Epidemiology Sponsoring Committees/Sponsors: Evolutionary Genetics and Genomics; Molecular and Cellular Phytopathology
New computational and sequencing approaches allow genome-wide characterization of DNA polymorphism. Moving from traditional population genetic marker systems like AFLP or SSRs to genome-wide SNP analyses provides new challenges and opportunities. This special session will provide a panel of speakers at the forefront of population genomics. The special session will discuss approaches on the computational and sequencing side and applications to plant pathogens.
Organizers: Jo Anne Crouch, USDA-ARS-SMML, Beltsville, MD, U.S.A.; Cristi Palmer, The IR-4 Project, Princeton, NJ, U.S.A. Section: Diseases of Plants Sponsoring Committees/Sponsors: Emerging Diseases and Pathogens; Diseases of Ornamental Plants
We are at a crossroads of knowledge with downy mildews. Devastating new diseases are emerging at an accelerating pace. This special session will provide an interdisciplinary assessment of emergent downy mildews across multiple commodity groups. Tackling the past, present, and future of emergent downy mildew diseases, we will consider common challenges across cropping systems and potential pathways forward.
Organizer: David Gadoury, Cornell University, Geneva, NY, U.S.A. Section: Professionalism/Outreach Sponsoring Committees/Sponsors: D. M. Gadoury, APS internal communications officer; CADRE; Office of Public Relations and Outreach (OPRO); Teaching
We are a high-impact/low-visibility profession and provide few opportunities to learn about plant pathology and possible careers. This special session highlights programs that engage students in their formative years and covers a breadth of models to increase awareness and appreciation of plant pathology. The special session directly supports the vision of APS to increase the exchange of knowledge of plant health within diverse communities and to provide preparation for careers in plant pathology.
Organizers: Richard Kim, Pace International, Wapato, WA, U.S.A.; Kari Peter, Penn State University, Biglerville, PA, U.S.A. Section: Disease Control and Pest Management Sponsoring Committees/Sponsors: Postharvest Pathology; Chemical Control; Food Safety Interest Group
The special session will present and discuss the impact of postharvest pathology research on trade and food safety. Topics for consideration include risk management and technologies to improve postharvest food safety, overcoming exporting barriers, and innovative methods of decay control, all of which influence billions of dollars of the U.S. fruit industry.
Organizers: Steve Klosterman, USDA-ARS, Salinas, CA, U.S.A.; Shuxian Li, USDA-ARS, Stoneville, MS, U.S.A. Section: Molecular/Cellular/Plant-Microbe Interactions Sponsoring Committee/Sponsor: Evolutionary Genetics and GenomicsFinancial Sponsor: The Samuel Roberts Noble Foundation
New hypotheses have emerged on how repeat elements impact genome evolution and biology of plant-pathogenic fungi. Repetitive elements are thought to cause local plasticity, leading to rapid pathogen adaptation to new niches or host ranges. This special session will focus on recent analyses of repetitive elements in remodeling the genomic landscape of plant-pathogenic fungi.
Organizers: Alejandra I. Huerta, University of Wisconsin, Madison, WI, U.S.A.; Jong Hyun Ham, Louisiana State University Agriculture Center, Baton Rouge, LA, U.S.A. Section: Biology of Pathogens Sponsoring Committees/Sponsors: Graduate Student; Bacteriology; Biological Control
In the last decades, research has focused on plant-microbe interactions and how the knowledge generated from these studies has lead to a better understanding for disease control. However, prior to reaching the host, bacteria must survive and thrive in harsh environments and outcompete intra- and interspecies competitors. In this special session, we will showcase recent findings on the modes of action, function, diversity, and applications of toxin immunity proteins produced by bacteria.
Organizers: Rebecca Sweany, Louisiana State University AgCenter, Baton Rouge, LA, U.S.A.; Hillary Mehl, Virginia Tech, Suffolk, VA, U.S.A.; Zhi-Yuan Chen, Louisiana State University AgCenter, Baton Rouge, LA, U.S.A. Section: Biology of Pathogens Sponsoring Committee/Sponsor: Mycotoxicology
This special session will present current research on mycotoxin production by plant-pathogenic fungi and their effects on both plants and animals. Talks will discuss regulation of aflatoxin production and the role of vesicles in the synthesis of mycotoxins. Additional topics will address mycotoxin detection methods and problems with mycotoxin-contaminated grain and effects of the pathogens on grain quality. Finally, toxicity of mycotoxins to humans and livestock will be presented.
Organizers: Gregory Tylka, Iowa State University, Ames, IA, U.S.A.; Vergel Concibido, Monsanto Company, Chesterfield, MO, U.S.A. Section: Biology of Pathogens Sponsoring Committees/Sponsors: Nematology Financial Sponsors: Monsanto Company, Bayer CropScience
This special session will highlight recent results of scientists working on a continuum of research topics, from the study of the microbiome and its effects on plant-parasitic nematodes to neural systems and multitrophic interactions with plant-parasitic nematodes to automated phenotyping for nematode resistance breeding. The special session will culminate with a presentation by an innovative seed potato farmer whose enterprise has used advances in nematology to meet real-world crop production needs.
Organizer: Christopher B. Meador, Weatherford, TX, U.S.A. Section: Disease Control and Pest Management Sponsoring Committee/Sponsor: Industry
Organizer: Ruth Genger, University of Wisconsin, Madison, WI, U.S.A. Section: Professionalism/Outreach Sponsoring Committees/Sponsors: Diversity and Equality; Tropical Plant Pathology; Graduate Student
Participatory research is now a proven approach for reaching farmers in marginal environments who have low adoption rates for modern varieties and disease management systems. This special session will address the breadth of participatory approaches to improve plant disease management in low-input, variable environments, including participatory breeding, establishment of seed systems in developing countries, germplasm conservation and evaluation, and farmer peer-to-peer education and outreach.
Organizers: Jane Stewart, University of Georgia, Athens, GA, U.S.A.; Isabel Munck, U.S. Forest Service, Portsmouth, NH, U.S.A. Section: Diseases of Plants Sponsoring Committees/Sponsors: Forest Pathology; Mycology; Epidemiology; Emerging Diseases and Pathogens
Outbreaks of tree diseases caused by native and introduced pathogens are predicted to become more frequent and intense under climate change. Forests provide critical ecosystem services, including clean water and air, fiber, nontimber forest products, wildlife habitat, recreational, and aesthetic values. Predicting climate change influences on forest diseases will foster forest management practices that minimize adverse impacts of diseases.
Organizers: Caroline Roper, University of California, Riverside, CA, U.S.A.; Martin Chilvers, Michigan State University, East Lansing, MI, U.S.A; Linda Kinkel and Laura Felice, University of Minnesota, St. Paul, MN, U.S.A.; Jose Pablo Soto-Arias, University of Wisconsin, Madison, WI, U.S.A. Section: Ecology and EpidemiologySponsoring Committees/Sponsors: Bacteriology; Evolutionary Genetics and Genomics; Soil Microbiology and Root Disease, Public Policy BoardFinancial Sponsor: The Samuel Roberts Noble Foundation
Plants live in intimate association with diverse microbes, referred to as the plant microbiome. Microbiome composition and functions are influenced by the plant, and are critical to plant health and productivity. Advances in next-generation sequencing technologies have led to a dramatic increase in our understanding of the composition of plant microbiomes, yet our understanding of the function interactions between plants and their microbiomes has lagged behind. This session will focus on recent advances in our understanding of the complex connections between plants and their microbiomes, and especially on the functional impacts of the microbiome on plant health in both non-model and model plant systems.
Organizer: Kathleen Kosta, California Dept. of Food and Agriculture, Sacramento, CA, U.S.A. Section: Biology of Pathogens Sponsoring Committees/Sponsors: Regulatory; Emerging Diseases and Pathogens; Diagnostics; Diseases of Ornamental Plants; Forest Pathology
Phytophthora tentaculata is a federally regulated pathogen found for the first time in the United States infecting Mimulus sp. Reports of the first detection, biology, host range, and studies on a treatment method will be presented. Discussions on how the implementation of a clean stock production system can be used in native plant nurseries to reduce the spread of Phytophthora tentaculata, as demonstrated in an Oregon program. Experiences and lessons learned with P. ramorum can be applied to this situation.
Organizer: Jay Pscheidt, Oregon State University, Corvallis, OR, U.S.A. Section: Professionalism/Outreach Sponsoring Committees/Sponsors: Division Forum: Jay Pscheidt and David Rosenberger
A technical paper session is requested to showcase the top graduate students (M.S. or Ph.D.) from each of the six APS division meetings. The chosen speakers will give a presentation of their research that won them top honors at their respective division meeting. Speakers are allowed 15 minutes for their presentations. This special session will highlight some of the top students in the field of plant pathology and broaden the engagement and visibility of APS divisions.
Organizers: Kimberly Cochran, University of Arkansas, Fayetteville, AR, U.S.A.; Patti Hosack, University of Missouri, Columbia, MO, U.S.A.; Martha Malapi-Wight, USDA-ARS, Beltsville, MD, U.S.A. Section: Professionalism/Outreach Sponsoring Committee/Sponsor: Early Career Professionals
A special session featuring early career professionals presenting their research.
Organizers: Phyllis Himmel, Marrone Bio Innovations, Davis, CA, U.S.A.; Ron Wallcott, University of Georgia, Athens, GA, U.S.A.; Judith Brown, The University of Arizona, Tucson, AZ, U.S.A. Section: Ecology and Epidemiology Sponsoring Committees/Sponsors: Vector-Pathogen Complexes; Seed Pathology
The impact of seed transmission on the epidemiology and management of vector-borne pathogens will be discussed using documented and emerging pathogen-vector-host systems. Too often, reports of seedborne pathogens stop at detection. It is critical to use robust data and follow seed industry standards to determine seed transmission of these pathogens. The accuracy of these investigations affects our ability to understand the nature of these complex disease systems and impacts the global movement of commercial seed.
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