2012 APS Annual Meeting PRELIMINARY SCIENTIFIC PROGRAM
Listed alphabetically. Sessions are preliminary and subject to change.
Monday, August 6; 8:30 – 11:30 a.m.Organizers: Shaker Kousik, U.S. Vegetable Laboratory, USDA, ARS, Charleston, SC, U.S.A.; Pradeep Kachroo, University of Kentucky, Lexington, KY, U.S.A.; Patrick Wechter, U.S. Vegetable Laboratory, USDA, ARS, Charleston, SC, U.S.A.; Alemu Mengistu, USDA, ARS, Jackson, TN, U.S.A.Section: Disease Control and Pest ManagementSponsor: Host ResistanceThe APS Host Resistance Committee, in conjunction with support from APS Foundation, is sponsoring the 12th I. E. Melhus Graduate Student Symposium. The symposium will feature four graduate student presentations highlighting research that leads to a better understanding of host plant resistance, resistance breeding, and disease management. Applications will be sought to cover a diverse array of basic and applied issues on host resistance and disease management.
Monday, August 6; 8:30 – 11:30 a.m.
Organizer: Mysore Sudarshana, USDA-ARS, Davis, CA, U.S.A.Section: Diseases of PlantsSponsors: Plant Pathogen and Disease Detection; DiagnosticsThe national concern for plant biosecurity has driven the development and adoption of technologies from fields outside of plant pathology. It is important to keep track of these technologies and their applicability under different settings, i.e., laboratory, ports, and field. This session aims to present the progress of some of the promising technologies and those that are on the horizon.
Wednesday, August 8; 8:30 – 11:30 a.m.
Organizers: Richard Nelson, Samuel Roberts Noble Foundation, Inc., Ardmore, OK, U.S.A.; Bright Agindotan, Energy Biosciences Institute/University of Illinois, Urbana, IL, U.S.A.; Steve Marek, Oklahoma State University, Stillwater, OK, U.S.A.Section: Diseases of PlantsSponsors: Virology; Mycology; Bacteriology; Molecular and Cellular Phytopathology; Emerging Diseases and PathogensFinancial Sponsors: USDA; Samuel Roberts Noble Foundation, Inc.With increased monoculture in lignocellulosic biofuel crops (e.g., switchgrass, miscanthus) comes the potential for novel and/or debilitating diseases. We currently have the ability to proactively, rather than reactively, discuss this topic. Speakers will give an overview of current and proposed biofuel crops, review known and potential disease agents (e.g., BYDV on switchgrass), and assess the possibility of disease outbreaks. Microbe influence on wall recalcitrance, biomass production, and land use will be presented.
Sunday, August 5; 1:00 - 4:00 p.m.
Wednesday, August 8; 1:00 - 4:00 p.m.
Organizers: Jan Leach, Colorado State University, Fort Collins, CO, U.S.A.; Angela Records, Eversole Associates, Bethesda, MD, U.S.A.Section: Professionalism/OutreachSponsors: Public Policy Board; Office of International ProgramsYou can have an impact on decisions made in Washington! Join us for an optimistic look at politics and learn a few things that every scientist should know about the U.S. government, science funding, and public opinion. The session will offer an overview of government structure and operation and a crash course in advocacy. Attendees will learn about the distribution of science funding in the United States and abroad, as well as public perceptions of science and the importance of scientific research.
Organizers: Jerry Weiland, USDA-ARS, Corvallis, OR, U.S.A.; Teresa Hughes, USDA-ARS, West Lafayette, IN, U.S.A.; Kirk Broders, University of New Hampshire, Durham, NH, U.S.A.Section: Ecology and EpidemiologySponsors: Soil Microbiology and Root Diseases; Phyllosphere MicrobiologyFinancial Sponsors: Illumina Inc.; Roche; Applied BiosystemsWe now have the ability to identify entire soil microbial communities instead of focusing exclusively on populations of one or a few pathogenic species. However, metagenomic community analyses often yield extremely large and complex data sets. This session will address issues surrounding the abundance and complexity of data and include information regarding the identification of key microbial species, assessment of new or undescribed species, and limitations of current metagenomic techniques. Additional guidance will be provided regarding community sampling and statistical methods.
Organizers: Jim Mueller, Dow AgroSciences, Brentwood, CA, U.S.A.; Brian D. Olson, Dow Agro Sciences, Geneva, NY, U.S.A.Section: Disease Control and Pest ManagementSponsors: Industry; Public Policy Board; Office of Industry Relations; Pathogen Resistance; Chemical ControlFinancial Sponsors: Syngenta; BASF Corporation; Bayer CropScienceThe dramatic increase in fungicide applications to corn and soybeans is a controversial topic of interest to various stakeholders, including state and federal regulators. Much additional research has been conducted since the 2009 “Hot Topic” session. This will build on a recent APSnet feature article, entitled “Are fungicides no longer just for fungi? An analysis of foliar fungicide use in corn.” The program will be balanced and objective, with university, industry, and regulatory presenting.
Organizer: Judith Brown, The University of Arizona, Tucson, AZ, U.S.A.Section: Molecular/Cellular/Plant-Microbe InteractionsSponsors: Virology; Vector-Pathogen Complexes; BacteriologyFinancial Sponsors: Samuel Roberts Noble Foundation, Inc.; USDA; MonsantoInvasive arthropod vectors of plant pathogens and nematodes may emerge in response to various environmental changes or altered agronomic practices. The focus of this session will be to highlight what is known about the interactions between arthropod vectors and the pathogens they transmit at the genetic, genomic, and cellular levels and to expose the gaps in knowledge, that if better understood, could benefit the development of new approaches to interfere with vector-mediated transmission.
Organizers: Shaker Kousik, U.S. Vegetable Laboratory, USDA, ARS, Charleston, SC, U.S.A.; Mathews Paret, University of Florida, Quincy, FL, U.S.A.; Pingsheng Ji, University of Georgia, Tifton, GA, U.S.A.Section: Disease Control and Pest ManagementSponsor: Integrated Plant Disease ManagementFinancial Sponsors: Syngenta Seeds, Inc.; HeinzSeedThe ban on using methyl bromide has led vegetable producers to seek alternatives for managing soilborne diseases. Grafting tomatoes, peppers, and various cucurbits on resistant rootstocks has been practiced for decades (since the 1960s) in Asia to manage soilborne diseases. However, it is relatively new in the United States. This session will address the basic techniques, economics, potential commercialization, and pros and cons of grafting and its effectiveness in disease management in vegetable crops.
Organizer: Paul Nicholson, John Innnes Centre, Norwich, United KingdomSection: Biology of PathogensSponsor: By invitation—British Society of Plant PathologyFinancial Sponsor: British Society of Plant PathologyFusarium head blight has been the focus of attention on both sides of the Atlantic for several years. Recent legislation limits DON mycotoxin and use of fungicides, leaving host resistance as the most promising tool for maintaining toxin-free grain. It is timely to bring together researchers to present findings on both sides of the story from the genetics perspective (virulence and host resistance) as well as findings relating to the host-pathogen interaction (transcriptomics/metabolomics).
Tuesday, August 7; 8:30 – 11:30 a.m.
Organizers: Jim Mueller, Dow AgroSciences, Brentwood, CA, U.S.A.; Brian D. Olson, Dow Agro Sciences, Geneva, NY, U.S.A.Section: Disease Control and Pest ManagementSponsors: Office of Industry Relations; Public Policy Board; Industry; Pathogen Resistance; Chemical ControlThis session addresses the need to involve more regulatory scientists in APS activities and gives APS members a better understanding of regulatory processes, research opportunities, and the diverse challenges faced by regulatory scientists. This forum also provides regulatory scientists with an opportunity for increased interaction with plant pathologists working in a variety of roles within academia, consulting, extension, and industry.
Organizers: Erica Goss, University of Florida, Gainesville, FL, U.S.A.; Steve Klosterman, USDA ARS, Salinas, CA, U.S.A.; Maria Jimenez-Gasco, Penn State University, University Park, PA, U.S.A.Section: Ecology and EpidemiologySponsors: Genetics; Mycology; BacteriologySequencing of genes and genomes is uncovering more hybridization and introgression in plant pathogens and endophytes than previously recognized. This session will discuss the large role that hybridization and horizontal gene transfer appears to be playing in the evolution of fungi, oomycetes, and bacteria that infect plants.
Organizers: Neil McRoberts and Carla Thomas, University of California, Davis, CA, U.S.A.Section: Ecology and EpidemiologySponsors: Epidemiology; Regulatory Plant Pathology; Diagnostics; Emerging Diseases and Pathogens; Forest Pathology; Crop Loss Assessment and EvaluationWhen considering epidemic timelines, events prior to an outbreak are considered to be to the left of the event (the Boom!). New approaches often use textual, qualitative information from informal nonreviewed sources and have potential to be used for prediction in similar ways to quantitative data. This session will examine new approaches and relate them to traditional approaches to disease detection and prediction and highlight common information across these methods using case studies.
Organizer: Nancy Osterbauer, Oregon Dept. of Agriculture, Salem, OR, U.S.A.Section: Disease Control and Pest ManagementSponsors: Regulatory Plant Pathology; Public Policy BoardFinancial Sponsor: USDA APHISThe session introduces APS members to the National Clean Plant Network (NCPN). The NCPN is an association of specialty crop networks that promote the use of pathogen-tested, healthy plant material for clonally grown food crops in the United States. The NCPN-Fruit Tree commodity group will be presenting. Speakers will present a case study on Plum pox virus, introduce new threats to the fruit tree industry, describe how NCPN would address such threats, and discuss the economic and other benefits to industry of the NCPN.
Wednesday, August 8; 8:30 – 11:30 a.m.
Organizers: Nian Wang, Citrus Research and Education Center, University of Florida, Lake Alfred, FL, U.S.A.; Jong Hyun Ham, Louisiana State University AgCenter, Baton Rouge, LA, U.S.A.Section: Biology of PathogensSponsor: BacteriologyUnderstanding the mechanisms for virulence may lead to the design of improved disease control strategies. This session will present the latest advances in selected important areas that made significant progress in understanding the virulence mechanism and new approaches used to further promote the study in this area. This has broad impact in research areas far beyond bacteriology and promotes the research in understanding the host defense and suppressing the bacterial virulence.
Monday, August 6; 8:30 – 10:00 a.m.
Organizer: Dair McDuffee, Valent USA Corporation, Indianapolis, IN, U.S.A.Section: Disease Control and Pest ManagementSponsor: IndustryThis session provides a forum for highlighting new products and technologies available to those in the fields of agriculture and plant disease management.
Organizer: Nicole Donofrio, University of Delaware, Newark, DE, U.S.A.; Rao Uppalapati, The Samuel Roberts Noble Foundation, Ardmore, OK, U.S.A.Section: Molecular/Cellular/Plant-Microbe InteractionsSponsor: Molecular and Cellular PhytopathologyFinancial Sponsor: DuPontRecent research has shown great progress in identifying and characterizing pathogen effectors from important plant pathogens, including oomycetes, fungi, bacteria, nematodes, and viruses. These results are now prompting the isolation of host targets in order to better understand how pathogens co-opt host machinery to cause disease. This session will highlight interactions between pathogen effectors and their host targets from a wide array of pathogens and researchers in the United States and internationally.
Organizers: Alexander Karasev, University of Idaho, Moscow, ID, U.S.A.; Stewart Gray, USDA-ARS, Cornell University, Ithaca, NY, U.S.A.Section: Biology of PathogensSponsor: VirologyPotato virus Y (PVY) has emerged as a significant concern for the U.S. potato industry with the introduction of new, recombinant strains, some of which induce destructive potato tuber necrotic ringspot disease in susceptible potato cultivars. Detection, differentiation, and control of PVY are difficult due to its high variability and symptomless cultivars. Current knowledge of PVY biology and mitigation of PVY effects on potato seed production and international potato trade will be discussed.
Organizers: Shuxian Li, USDA-ARS, Crop Genetics Research Unit, Stoneville, MS, U.S.A.; Rick Bennett, University of Arkansas, Fayetteville, AR, U.S.A.; Kimberly Webb, USDA-ARS, Fort Collins, CO, U.S.A.; Kevin McCluskey, University of Missouri, Kansas City, MO, U.S.A.Section: Professionalism/OutreachSponsors: Collections and Germplasm; Public Policy BoardThe session will focus on analogies of plant germplasm and pathogen germplasm collections for management, proper storage, handling, distribution, and database management. The well-established USDA National Plant Germplasm System (NPGS) will be examined as a model for pathogen collections in a proposed National Plant Microbial Germplasm System (NPMGS). Speakers will examine curation of plant materials versus microbes and how microbial collections may be integrated into the established system for plant germplasm, including backing up collections, genotyping, and modification of databases in the Genetic Resources Information Network (GRIN).
Organizers: Barry Pryor, University of Arizona, Plant Sciences, Tucson, AZ, U.S.A.; Kirk Broders, University of New Hampshire, Durham, NH, U.S.A.Section: Ecology and EpidemiologySponsors: Mycology; Plant Pathogen and Disease Detection; Diagnostics; Seed Pathology; Soil Microbiology and Root DiseasesFinancial Sponsor: Widely Prevalent Plant Pathogenic Fungi List ProjectThe development of species concepts for asexual fungi is taxonomically challenging due to their clonal population structure, and most contemporary efforts have been unsuccessful in understanding and resolving the species-population interface. Modern sequencing technology and more powerful analytical methods are quickly advancing this area of research as the availability of entire genomes from multiple individuals permits new insights on genetic variation and evolutionary history across multiple loci and at varying taxonomic levels. This session provides a focused review of asexual fungi and highlights some of the taxonomic challenges and advancements in species delimitation in exemplar fungal lineages. The successful development of species concepts for these taxa will have broad and significant impact in comparative biology, as well as in pathogen detection and disease management.
Organizers: Lawrence Brown, USDA\APHIS\PPQ, Raleigh, NC, U.S.A.; Neil McRoberts, University of California, Davis, CA, U.S.A.Section: Ecology and EpidemiologySponsors: Crop Loss Assessment and Risk Evaluation; Epidemiology; Regulatory Plant Pathology; Diagnostics; Emerging Diseases and Pathogens; Forest PathologyThe complimentary session “Left of the Boom!” considers prospects for improved disease forecasting and detection. However, the future will involve outbreaks of quarantine pests that impose biological and economic losses on agriculture. This session explores frameworks and measures for decision support in regulatory agency decision-making to the right of the Boom! (after an outbreak). It combines views from practitioners, researchers, and analysts on future directions for better regulatory plant pathology.
Organizers: Teresa Hughes, USDA-ARS, Purdue University, West Lafayette, IN, U.S.A.; Christopher Wallis, USDA-ARS, Parlier, CA, U.S.A.Section: Diseases of PlantsSponsors: Early Career Professionals; BacteriologyThis session is designed to acknowledge the new faces shaping the future of plant bacteriology. We encourage nominations of scientists in the early stages of their careers (within 10 years of graduation, including post-docs) who are forward thinkers and perceived to be the future leaders in the field of plant bacteriology. Speakers must be APS members.
Organizers: Inga Meadows, Ministry of Primary Industries, Auckland, New Zealand.; Matt Kasson, Pennsylvania State University, University Park, PA, U.S.A.Section: Diseases of PlantsSponsors: Forest Pathology; Emerging Diseases and Pathogens; Vector-Pathogen Complexes; EpidemiologyFinancial Sponsors: Walnut Council; Walnut Council FoundationDecline and mortality of walnut trees (Juglans spp.) have been observed in the last decade throughout the western United States and, more recently, in the eastern United States. The disease complex, thousand cankers disease (TCD), is caused by the fungus Geosmithia morbida and vectored by the walnut twig beetle, Pityophthorus juglandis. TCD has increased concerns of the health of black walnut and its viability as a commercial product. This session will emphasize current knowledge of TCD and highlight research gaps.
Organizers: Diane Ullman, Dept. of Entomology, University of California, Davis, CA, U.S.A.; Thomas German, University of Wisconsin, Madison, WI, U.S.A.Section: Biology of PathogensSponsors: Vector-Pathogen Complexes; VirologyFinancial Sponsors: GATES Foundation; Samuel Roberts Noble Foundation, Inc.Presentations by two-member teams consisting of partnering plant and animal/human vector biologists that will examine shared features to achieve a comparative synthesis of points of intersection between plant and animal/human vector study systems. The session will cover 1) behavioral modification of vectors; 2) molecular basis of vector competence; and 3) pathogen modification of host to ensure vector transmission.