2013 APS-MSA Preliminary Scientific Program

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The American Phytopathological Society • Mycological Society of America

Unlock the Can’t-Miss Science at this Year’s Meeting: Schedule-at-a-Glance...................... 2–3 Meet the Joint Meeting Board.......... 2–3 Capitalize on Your ............................ 4–5 Meeting Experience Navigating the Science..........................9

Visit us on the web at www.apsnet.org/meet


SATURDAY, AUGUST 10 a.m. /p.m. 6:30 – 8:00 p.m. 8:00 – 9:30 p.m.

Workshops/Field Trips APS Committee Meetings APS Committee Meetings

SUNDAY, AUGUST 11 8:30 – 10:00 a.m. 10:30 a.m. – 12:00 p.m. 10:30 a.m. – 12:00 p.m. 1:00 – 2:15 p.m. 1:00 – 4:00 p.m. 2:45 – 4:00 p.m. 4:30 – 6:30 p.m.

APS Committee Meetings APS Opening General Session & Awards Ceremony MSA Business Meeting & Awards Ceremony Technical Sessions Special Sessions Technical Sessions Opening Exhibition Reception

MONDAY, AUGUST 12 8:30 – 9:45 a.m. 8:30 – 11:30 a.m. 10:15 – 11:30 a.m. 1:00 – 2:30 p.m. 2:30 – 3:30 p.m. 3:30 – 5:30 p.m. 6:00 – 9:00 p.m.

Scott Adkins Director

George Abawi Annual Meeting Program Chair

Technical Sessions Special Sessions Technical Sessions Plenary Session Karling Lecture (MSA) Poster Author Time Industry Extension Social

Janna Beckerman Section Chair— Diseases of Plants

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Amy Charkowski Section Chair— Biology of Pathogens

Aaron Hert Section Chair— Disease Control and Pest Management


TUESDAY, AUGUST 13 8:30 – 9:45 a.m. 8:30 – 11:30 a.m. 10:15 – 11:30 a.m. 1:00 – 2:00 p.m. 1:00 – 2:00 p.m. 2:15 – 3:30 p.m. 3:30 – 5:30 p.m.

Technical Sessions Special Sessions Technical Sessions APS Plenary Session MSA Presidential Address Technical Sessions Poster Author Time

WEDNESDAY, AUGUST 14 8:30 – 9:45 a.m. 8:30 – 11:30 a.m. 10:15 – 11:30 a.m. 1:00 – 2:15 p.m. 1:00 – 4:00 p.m. 2:45 – 4:00 p.m. 5:30 – 7:00 p.m. 6:30 – 9:30 p.m.

Peter Ojiambo Section Chair— Professionalism/ Outreach

Paul Esker Section Chair— Ecology and Epidemiology

Technical Sessions Special Sessions Technical Sessions Technical Sessions Special Sessions Technical Sessions MSA Social and Auction Final Night Celebration

Jeffrey Rollins Section Chair— Molecular/Cellular/ Plant-Microbe Interactions

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James Buck Field Trips and Workshops Chair

Kerry O’Donnell MSA Program Chair


“The annual meeting offers great opportunities for individuals who would not normally meet each other to share experiences and develop possible collaborations in identifying practical and sustainable approaches to diagnose and manage plant diseases. These collaborations contribute to key methods in addressing the complex and grand societal challenges of agricultural productivity, food safety, climate change issues, sustainability, energy, and other topics relevant to the 2013 meeting theme of “Mind the Gap”.“ ­­­­—George Abawi, APS Annual Meeting Program Chair

n Special and Technical Sessions

Update yourself with the latest information available on a wide variety of pertinent topics in a cost-effective way!

“We have dedicated part of Monday and Tuesday afternoon completely to posters and their authors—there will be no concurrent special or technical sessions—just pure unobstructed time to engage with those presenting posters.” —Michael Boehm, APS President

n Plenary Sessions

Stay at the forefront of your science as you gain a unique understanding of important issues plant pathologists are facing when you participate in this APS president-driven experience, plus an additional session aimed to expand your professional development.

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“The more APS Annual Meetings I come to, the more plugged in and engaged I become!” —2012 APS Annual Meeting Attendee

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Online submissions for both oral and technical poster presentations will be accepted

February 1 through March 15, 2 013.

We invite you to present your latest breakthroughs and research findings

with the APS and MSA communities. By presenting a poster or oral presentation, you have the opportunity to share your research with the top minds in the plant pathology community and receive feedback on your work. So buckle down and get your research ready to submit! More information, including guidelines and criteria for acceptance, is available online at www.apsnet.org/meet.

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“Here at the annual meeting you can get a collaborative discussion going and get feedback and input from other researchers and scientists to tighten up your work or to help you take something in a different direction. There’s more of a give and take and more of a discussion because you are talking to people at the academic/industry level, rather than reporting.” —Bryan J. Webster, University of Wisconsin 7


Mobile App

Offering you superior meeting connections through technology

• My Meeting—Browse the list of attendees, update and manage your profile, create and respond to messages, and manage appointments and your schedule • Messages—Send and receive messages with fellow attendees • Audio Access—Access poster presenters’ audio preview of their poster • Appointments—Schedule yourself at specific events within the meeting, or even schedule appointments with fellow attendees! • Program Guide—Glance at the entire meeting program schedule and add any events to your schedule • Posters—Explore a full listing of this year’s posters at your fingertips

Workshops

Additional focused educational sessions

Workshops on a variety of topics pertinent to plant science offer extra educational value to meeting attendees. Browse this year’s workshops on pages 22–23

The great thing about this meeting is that there is so much going on, along with the science. I went to a workshop this morning and learned about leadership, communicating with other people, and how to become a better scientist as a whole. —Lisa Malo, University of Saskatchewan

Field Trips

Discover the local area

Field trips exploring the local area and industry are an important part of the APS Annual Meeting, allowing attendees to take advantage of the meeting location. See where this year’s field trips will take you on pages 20–21

Field trips give you an opportunity to see and experience how things are done locally. Although production or management practices may be similar throughout the country, local environmental and cultural characteristics may flavor how things are done at the local level. —Kevin Ong, Texas AgriLife Extension Service 8


Special Sessions 13th I. E. Melhus Graduate Student Symposium: What’s in Our Toolbox to Minimize the Risk of Plant Disease?...................................................................................................................................... 14 An Unconventional Classroom: Reaching New Students with Online and Distance Courses and Programs................................................................................................................................................. 15 Counting Beans & Tooting Horns: Effective Metrics for Documenting the Impact of Research and Extension................................................................................................................................................. 15 Emerging Issues of Mycotoxins in Food Safety................................................................................................ 12 Filling in the Gaps: How Do Xanthomonads Adapt to Diverse Hosts, Tissues, and Environments?.................... 19 Filling the Gap: Understanding Factors Driving Expanding Distributions of Plant Viruses................................ 16 Functional, Evolutionary, and Ecological Diversity of Wood Decay Systems..................................................... 10 Fungal Ecology Beyond Boundaries: From Communities to the Globe............................................................. 10 Innovations in Microbial Forensics and Plant Biosecurity................................................................................ 12 Innovations in Seed Treatments for Crop Protection and Health...................................................................... 14 Insect-Transmitted Bacterial Diseases: Passing the Gift................................................................................... 19 Interaction Between Plants and Human Pathogens........................................................................................ 12 Interactions and Mechanisms of Symptomless Plant Symbioses..................................................................... 18 Invasive Threats to Palm Trees......................................................................................................................... 17 New Horizons in the Cell Biology of Fungi....................................................................................................... 18 New Products & Services................................................................................................................................. 14 One Fungus, One Name: The Impact of Recent Changes in Fungal Nomenclature.....................................10–11 Plant Pathologists of the Future: Showcasing the Top Graduate Students from APS Division Meetings........... 15 Responses of Plant-Symbiotic Fungi to Climate Change: Diversity, Distribution, and Function....................... 11 Schroth Faces of the Future: New Frontiers in Mycology.................................................................................. 11 Small Noncoding RNAs: New Paradigms in Plant-Microbe Interactions.......................................................... 18 Status and Challenges in Identification and Diagnosis of Graminicolous Downy Mildews............................... 11 Virus Intracellular Accumulation and Movement as a Target for Disease Control............................................. 16

Field Trips Current Perspectives on Abiotic and Biotic Threats to Forest and Shade Trees of Texas..................................... 20 Ornamental and Urban Farming..................................................................................................................... 20 Postharvest Storage, Pathology, and Processing of Texas Agricultural Commodities....................................... 20 Texas Foray...................................................................................................................................................... 21 Texas Hill Country Fruit Disease....................................................................................................................... 21 Turfgrass......................................................................................................................................................... 21

Workshops Comparative Fungal Genomics with MycoCosm.............................................................................................. 22 Genotyping-by-Sequencing............................................................................................................................ 22 How to Get Engaged: Advocacy Etiquette....................................................................................................... 22 Sampling Terms, Concepts, and Best Practices for Plant Pathologists.............................................................. 22

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Functional, Evolutionary, and Ecological Diversity of Wood Decay Systems Sponsoring Committee/Sponsor: Mycology • Mechanisms of wood decay inferred from recent genome investigations. D. CULLEN, USDA Forest Products Laboratory, Madison, WI, U.S.A. • Time-dependent expression of genes encoded by Phanerochaete carnosa during growth on heartwood from deciduous and coniferous wood. E. MASTER, University of Toronto, Toronto, ON, Canada • Wood decay in the Ozark Highlands: Variation across species, space, and time. A. ZANNE, George Washington University, Washington, DC, U.S.A. • Wood-rotting fungi have a dark history: Evidence from the fossil record. C. HARPER, University of Kansas, Lawrence, KS, U.S.A. • Wood decay in extreme environments. R. BLANCHETTE, University of Minnesota, Minneapolis, MN, U.S.A. • Novel industrial lignocellulose-degrading enzymes. A. BERLIN, Novozymes, Inc., Davis, CA, U.S.A. • Diversification of wood decay systems in early evolution of Agaricomycotina. L. NAGY, Clark University, Worcester, MA, U.S.A.

Fungal Ecology Beyond Boundaries: From Communities to the Globe Financial Sponsor: New Phytologist Trust • The functioning of arbuscular mycorrhizal symbioses from local communities to biomes. J. KLIRONOMOS, The University of British Columbia, Okanagan campus, Kelowna, BC, Canada • Fungal ecology in a community context: Nectar microfungi interacting with bacteria, plants, and birds. T. FUKAMI, Stanford University, Palo Alto, CA, U.S.A. • Does nitrogen availability affect ectomycorrhizal fungal communities at the regional scale? F. COX, University of Manchester, Manchester, England, United Kingdom • Independent roles of saprotrophic and mycorrhizal communities in soil organic matter decomposition. J. TALBOT, Stanford University, Palo Alto, CA, U.S.A. • Structure and resilience of fungal communities in Alaskan boreal forest soils. D. L. TAYLOR, Institute of Arctic Biology-University of Alaska, Fairbanks, AK, U.S.A. • Revisiting the specificity paradigm of Alnus-associated ectomycorrhizal communities at the global scale. P. KENNEDY, Lewis and Clark College, Portland, OR, U.S.A. • Dispersal limitation, environmental filtering, and host specificity interact to influence global arbuscular mycorrhizal fungal distributions. S. KIVLIN, University of Texas-Austin, Austin, TX, U.S.A. • Ecology from the ground up: A roots to biomes look at mycorrhizal community structure and function. K. PEAY, Stanford University, Palo Alto, CA, U.S.A.

One Fungus, One Name: The Impact of Recent Changes in Fungal Nomenclature Sponsoring Committees/Sponsors: Mycology; Diagnostics; Widely Prevalent Fungi List Working Group; International Commission on the Taxonomy of Fungi • Overview of changes affecting fungal nomenclature in the International Code of Nomenclature. D. MINNIS, USDA-ARS Systematic Mycology & Microbiology Lab, Beltsville, MD, U.S.A.

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• Impact of ICN changes on scientific names of fungal plant pathogens. M. PALM, USDA APHIS PPQ National Identification Services, Beltsville, MD, U.S.A. • Progress of nomenclatural working groups in implementing ICN changes. K. SEIFERT, Agriculture and Agri-Food Canada, Ottawa, ON, Canada • Colletotrichum and Dothideomycetes. P. CROUS, Fungal Biodiversity Centre, Utrecht, Netherlands • Fusarium. D. GEISER, Pennsylvania State University, University Park, PA, U.S.A.

Responses of Plant-Symbiotic Fungi to Climate Change: Diversity, Distribution, and Function • Fungal community responses to discrete precipitation pulses under altered rainfall intervals. A. JUMPPONEN, Kansas State University, Manhattan, KS, U.S.A. • Climatic drivers of fungal endophyte distributions and their impacts on plant drought resistance. H. GIAUQUE, University of Texas-Austin, Austin, TX, U.S.A. • Impact of fungal endophytes on the climatic niche of their host at a range-wide scale. M. AFKHAMI, University of California, Davis, CA, U.S.A. • Mycorrhizal feedback with global change: An ecophysiological perspective. G. MALCOLM, Pennsylvania State University, University Park, PA, U.S.A. • Fires as global change: Responses by mycorrhizal fungi. K. TRESEDER, University of California, Irvine, CA, U.S.A.

Schroth Faces of the Future: New Frontiers in Mycology Sponsoring Committees/Sponsors: Early Career Professionals, Mycology Schroth Faces of the Future is an annually occurring endowed session recognizing early career professionals (those within 10 years of graduation) who are making an impact in plant pathology research. Each year, Schroth covers a different discipline of plant pathology, with 2013 to cover Faces of the Future in mycology.

Status and Challenges in Identification and Diagnosis of Graminicolous Downy Mildews Sponsoring Committees/Sponsors: Regulatory Plant Pathology; Emerging Diseases and Pathogens; Diagnostics • Biology of downy mildews from gramineaceous crops. G. PETERSON, Foreign Disease-Weed Science, USDA-ARS, Fort Detrick, MD, U.S.A. • Downy mildews from gramineaceous crops in North America and those of regulatory concern. C. MAGILL, Texas A&M University, College Station, TX, U.S.A. • Environment metagenomics of downy mildews. A. LEVESQUE, Agriculture and Agri-Food Canada, Ottawa, ON, Canada • Taxonomy and phylogeny of graminicolous downy mildews. M. THINES, Johann Wolfgang Goethe University, Frankfurt, Germany • Status, challenges, and tools in identification and diagnosis of Peronosclerospora and Sclerophthora of regulatory concern. Z. G. ABAD, USDA-APHIS-CPHST, Beltsville, MD, U.S.A.

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Emerging Issues of Mycotoxins in Food Safety Sponsoring Committees/Sponsors: Mycotoxicology; Seed Pathology • Impacts of the Midwest 2012 drought on aflatoxin contamination of maize. A. ROBERTSON, Iowa State University, Ames, IA, U.S.A. • Impacts of weather on mycotoxin levels in crops. P. COTTY, USDA-ARS, University of Arizona, Tucson, AZ, U.S.A. • Challenges during application of biopesticide AF36 in pistachio orchards to reduce aflatoxin contamination. T. MICHAILIDES, University of CaliforniaDavis, Parlier, CA, U.S.A. • Aspergillus-derived fumonisin in maize. G. MUNKVOLD, Iowa State University, Ames, IA, U.S.A. • When mycotoxins come in bunches: Fumonisin production by Aspergillus niger in grapes. J. PALUMBO, USDA-ARS, Albany, CA, U.S.A. • Common smut enhances aflatoxin levels in maize. H. ABBAS, USDA-ARS, Stoneville, MS, U.S.A.

Innovations in Microbial Forensics and Plant Biosecurity Sponsoring Committees/Sponsors: Microbial Forensics Interest Group; Emerging Diseases and Pathogens; Crop Loss Assessment and Risk Evaluation (CARE); Epidemiology • Forensic epidemiology: Novel digital epidemiology methods. N. NELSON, Georgetown University, Washington, DC, U.S.A. • Forensic epidemiology: New sensor-based plant pathogen detection: Where to look for evidence in a 300-acre crop. F. NUTTER, Iowa State University, Ames, IA, U.S.A. • Advances in pathogen detection for forensic plant pathology. N. BERGMAN, National Bioforensic Analysis Center, Fort Detrick, MD, U.S.A. • Forensic methods for pathogen strain typing. J. BURANS, National Bio forensic Analysis Center, Fort Detrick, MD, U.S.A. • Bioinformatics strategies for microbial forensics. R. KNIGHT, University of Colorado, Boulder, CO, U.S.A.

Interaction Between Plants and Human Pathogens Sponsoring Committees/Sponsors: APS Food Safety Interest Group; Public Policy Board • A microbe is a microbe: What plant pathologists can and do to contribute to food safety research and outreach. S. MILLER, The Ohio State University, Wooster, OH, U.S.A. • Biology and ecology of human pathogens on the plant environment. M. BRANDL, USDA-ARS, WRRC, Albany, CA, U.S.A. • Salmonella’s life in the roots. J. BARAK, University of Wisconsin, Madison, WI, U.S.A. • Plant immunity against human pathogens. M. MELOTTO, The University of Texas-Arlington, Arlington, TX, U.S.A. • A food safety perspective on the interactions of enteric viruses with plants. K. KNIEL, University of Delaware, Newark, DE, U.S.A.

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“The highlight of the meeting is getting to see all of your colleagues and friends and catching up on all the latest news and updates and current research.” — Monica Lewandowski The Ohio State University

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13th I. E. Melhus Graduate Student Symposium: What’s in Our Toolbox to Minimize the Risk of Plant Disease? Sponsoring Committees/Sponsors: Crop Loss Assessment and Risk Evaluation (CARE); APS Foundation Selected graduate students will present their work on minimizing plant disease risk. Minimization of this risk might be accomplished through new resistance strategies in plants; knowledge gained through disease forecasting and spatial modeling; or implementation of innovative management programs, new chemistries, or biological control agents. Presenters for this session are selected on the basis of the originality and significance of their approach to reducing plant disease risk.

Innovations in Seed Treatments for Crop Protection and Health Sponsoring Committees/Sponsors: Seed Pathology; Nematology • Biological control through microbial seed treatments. G. HARMAN, Cornell University, Geneva, NY, U.S.A. • Bacteriophage seed treatments for control of bacterial pathogens. N. ADACHI, Ishikawa Agricultural Research Center, Kanazawa, Japan • Development and formulation of seed treatment combinations. K. ARTHUR, Valent USA Corp., Plano, TX, U.S.A. • Implementation of seed treatment formulations by the seed industry. G. LAMKA, Pioneer Hi-Bred International, Inc., Johnston, IA, U.S.A. • Nematode protectant seed treatments for row crops. G. TYLKA, Iowa State University, Ames, IA, U.S.A. • Physiological benefits of seed treatments. P. CASTRO, University of Sao Paulo, Sao Paulo, Brazil

New Products & Services Sponsoring Committee/Sponsor: Industry This session provides a forum for highlighting new products and technologies available to those in the fields of agriculture and plant disease management.

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An Unconventional Classroom: Reaching New Students with Online and Distance Courses and Programs Sponsoring Committees/Sponsors: Office of Education; Teaching • Selection and use of technology for offering a distance course in plant pathology. D. SHEW, North Carolina State University, Raleigh, NC, U.S.A. • The challenges and advantages of teaching basic plant pathology at a distance. E. LITTLE, University of Georgia, Athens, GA, U.S.A. • Teaching tropical plant pathology to a global audience. J. RISTAINO, North Carolina State University, Raleigh, NC, U.S.A. • Masters-level agricultural biosecurity education for location-bound adult learners. G. KULDAU, Pennsylvania State University, University Park, PA, U.S.A. • What’s in it for us? Creating financial and academic incentives for faculty in an online degree program. D. PFEIFFER, Virginia Tech, Blacksburg, VA, U.S.A.

Counting Beans & Tooting Horns: Effective Metrics for Documenting the Impact of Research and Extension Sponsoring Committees/Sponsors: Extension; Early Career Professionals; Plant Pathogen and Disease Detection • Utilizing technology in agricultural and educational associations for maximum impact. T. FRANK, K-global, Washington, DC, U.S.A. • How can your university’s evaluation specialist help you demonstrate impact? T. BARTHOLOMAY, University of Minnesota, St. Paul, MN, U.S.A. • Planning for evaluation of your research. N. FUHRMAN, University of Georgia, Athens, GA, U.S.A. • Documenting the impact of 10 years of IPM on Wisconsin cranberry production: A case study. J. COLQUHOUN, University of Wisconsin, Madison, WI, U.S.A. • The importance of documenting impact—A Washington perspective. M. DRAPER, USDA-NIFA, Washington, DC, U.S.A.

Plant Pathologists of the Future: Showcasing the Top Graduate Students from APS Division Meetings Sponsoring Committee/Sponsor: Divisional Forum This session is designed 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 20 minutes for their presentations, and this includes time for questions. This session will highlight some of the top students in the field of plant pathology and broaden the engagement and visibility of APS divisions.

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Filling the Gap: Understanding Factors Driving Expanding Distributions of Plant Viruses Sponsoring Committees/Sponsors: Virology; Vector-Pathogen Complexes • Climate change effects on physiology and population processes of hosts and vectors that influence the spread of hemipteran-borne plant viruses. A. FERERAS CASTIEL, Institute of Agricultural Sciences, Madrid, Spain • The panacea of host resistance genes: The inadvertent selection of resistancebreaking viruses. J. BROWN, University of Arizona, Tucson, AZ, U.S.A. • Evolutionary genetics factors underlying the emergence and spread of plant RNA viruses. S. ELENA, Instituto de Biología Molecular y Celular de Plantas/ The Santa Fe Institute, Valencia, Spain • Suitcase importation and other venues for the introduction of exotic plant pathogens. D. GOLINO, University of California-Davis, Davis, CA, U.S.A. • Free trade, fair trade, safe trade: The role of plant pathology in filling regulatory gaps. R. GRIFFIN, USDA-APHIS, Washington, DC, U.S.A.

Virus Intracellular Accumulation and Movement as a Target for Disease Control Sponsoring Committee/Sponsor: Virology • Investigating a new role for the Cauliflower mosaic virus P6 protein: Delivery of virions to plasmodesmata. J. SCHOELZ, University of Missouri, Columbia, MO, U.S.A. • Grapevine fanleaf virus: Virus–host interactions at the plasmodesmata influencing movement. C. RITZENTHALER, CNRS, Strasbourg, France • The importance of chloroplast interactions for local and systemic movement of some members of the Alphaflexiviridae. J. HAMMOND, USDA-ARS, Beltsville, MD, U.S.A. • Host membrane recruitment for replication and intercellular movement of Turnip mosaic virus. J.-F. L ALIBERTÉ, INRS, Laval, QC, Canada • Assessing vacuole trafficking and metabolizing components for their influence on tobamovirus-induced disease. X. YANG, Samuel Roberts Noble Foundation, Inc., Ardmore, OK, U.S.A. • Summary of virus accumulation and movement findings and their potential application, with Q&A. R. NELSON, Samuel Roberts Noble Foundation, Inc., Ardmore, OK, U.S.A.

“I’ve already had one awesome session which was super informative and really hit all the notes that I needed to learn for my research...” ­—Simon Schreier, Clemson University

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A field of Bluebonnets (Lupinus Texensis) and Indian Paintbrush (Castilleja) wildflowers. Photo courtesy of ACVB Photo/Dan Herron, HerronStock.com

Austin Fine Arts Festival, photo courtesy of ACVB

Texas State Capitol, photo courtesy of ACVB

Invasive Threats to Palm Trees Sponsoring Committees/Sponsors: Tropical Plant Pathology; Diseases of Ornamental Plants; Vector-Pathogen Complexes • Molecular characterization of lethal yellows and other phytoplasma in the Caribbean. N. HARRISON, University of Florida, Davie, FL, U.S.A. • Texas Phoenix palm decline and potential vectors. B. BEXTINE, University of Texas-Tyler, Tyler, TX, U.S.A. • Diagnosis of palm declines in the National Plant Disease Diagnostic Network. K. ONG, Texas A&M University, College Station, TX, U.S.A. • Cadang-cadang disease of palm in Southeast Asia. J. W. RANDLES, University of Adelaide, Adelaide, Australia • Spread and impact of lethal yellows in Central America. M. PALMIERI, Universidad del Valle de Guatemala, Guatemala City, Guatemala • Discussion

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Interactions and Mechanisms of Symptomless Plant Symbioses Sponsoring Committees/Sponsors: MSA; Mycology; Phyllosphere Microbiology; Postharvest Pathology; Turfgrass Pathology; Seed Pathology • Parallels between mutualism and pathogenesis: A comparison of lichen and pathogenic symbioses. E. MEDINA, Duke University, Durham, NC, U.S.A. • Dual mutualist-antagonist dynamics of grass endophytes. S. FAETH, University of North Carolina, Greensboro, NC, U.S.A. • Obligately lichen-associated fungi in the lichen microbiome: How did they get there and what are they doing? J. LAWREY, George Mason University, Fairfax, VA, U.S.A. • Bacterial traits that mediate growth and survival in plants. S. LINDOW, University of California, Berkeley, CA, U.S.A. • Hemibiotrophy: The Magnaporthe oryzae–rice interaction. B. VALENT, Kansas State University, Manhattan, KS, U.S.A.

New Horizons in the Cell Biology of Fungi • The glowing guts of Neurospora crassa hyphae. M. RIQUELME, CICESE, Ensenada, Mexico • Endocytosis process in Aspergillus nidulans. B. SHAW, Texas A&M University, College Station, TX, U.S.A. • Cell-to-cell communication. L. GLASS, University of California, Berkeley, CA, U.S.A. • Septation in filamentous fungus. R. MOURIÑO-PÉREZ, CICESE, Ensenada, Mexico • mRNA transport in the plant pathogen Ustilago maydis. M. FELDBRÜGGE, University of Düsseldorf, Düsseldorf, Germany

Small Noncoding RNAs: New Paradigms in Plant-Microbe Interactions Sponsoring Committees/Sponsors: Bacteriology; Molecular and Cellular Phytopathology; Widely Prevalent Bacteria • Small noncoding RNAs: Origin, function, and discovery. X. CHEN, University of California, Riverside, CA, U.S.A. • Host targets of viral si and miRNAs in maize. V. VANCE, University of South Carolina, Columbia, SC, U.S.A. • Small RNA-mediated gene regulation in plant immune responses against bacterial pathogens. H. JIN, University of California, Riverside, CA, U.S.A. • The role of sRNAs in the virulence of the plant pathogen Xanthomonas campestris. U. BONAS, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany • Application of small RNAs and RNA-silencing mechanisms in fungi. R. DEAN, North Carolina State University, Raleigh, NC, U.S.A.

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Driskill Hotel. Restored luxury historic hotel built in 1886 and located at the very heart of the city on amous Sixth Street. Photo courtesy ACVB .

Filling in the Gaps: How Do Xanthomonads Adapt to Diverse Hosts, Tissues, and Environments? • Roles of transporters and sugar utilization systems in xanthomonad adaptation to different environments. M. ARLAT, University of Toulouse, Toulouse, France • Genome plasticity in xanthomonads. R. KOEBNIK, IRD, Montpellier, France • Transcriptome analysis to reveal genome adaptation to new environments and hosts. G. LIONEL, CIRAD, Sainte-Clotilde, La Réunion, France • Criteria for home: What xanthomonad adaptations enable colonization of different plant tissue types? A. BOGDANOVE, Cornell University, Ithaca, NY, U.S.A. • Flagellar motility and fitness in xanthomonads. M. A. JACQUES, INRA, Angers, France

Insect-Transmitted Bacterial Diseases: Passing the Gift Sponsoring Committees/Sponsors: Vector-Pathogen Complexes; Bacteriology • Recent advances in understanding the biology of the insect-transmitted bacterium, Xylella fastidiosa. C. ROPER, University of California, Riverside, CA, U.S.A. • Phytophagous insects, Salmonella enterica, produce a tritrophic interaction that can make you sick. J. P. SOTO-ARIAS, University Wisconsin, Madison, WI, U.S.A. • Pantoea stewartii uses distinct type III secretion systems to alternate between host kingdom. M. REDINBAUGH, USDA-ARS, Ohio State University, Wooster, OH, U.S.A. • Erwinia tracheiphila: Getting around with a little help from my friends. E. SAALAU-ROJAS, Iowa State University, Ames, IA, U.S.A. • Genomics of Erwinia amylovora–host interactions: Update and perspective. Y. F. ZHAO, University of Illinois Urbana-Champaign, Champaign, IL, U.S.A.

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Current Perspectives on Abiotic and Biotic Threats to Forest and Shade Trees of Texas Sponsoring Committee/Sponsor: Forest Pathology The field trip will emphasize current abiotic and biotic threats, including oak wilt, hypoxylon canker, leaf scorch, fire, and drought, to Texas forest and shade trees. Participants will visit several locations, including the Bastrop State Park, which was devastated by wildfires in 2011. Attendees will interact with local forest health specialists and pathologists to discuss research, surveys, and long-term drought and fire and their impact on forest health planning.

Ornamental and Urban Farming Sponsoring Committees/Sponsors: Diseases of Ornamental Plants; Extension This field trip will explore various green industries that impact the urban areas of Central Texas (Austin-San Antonio). We will visit several local commercial greenhouse and nursery operations. We will also explore some aspects of food production in the urban and immediate surrounding areas.

Postharvest Storage, Pathology, and Processing of Texas Agricultural Commodities Sponsoring Committee/Sponsor: Postharvest Pathology The field trip will focus on storage, pathology, and processing of fruits, grains, and vegetables that are produced in the Austin, Texas area.

“The annual meeting provides a venue for those interested in plant diseases, health, and production to come together and share ideas and science critical to allowing plant pathology as a discipline to help solve many of the world’s most pressing issues related to food production, safety, and security; energy; sustainability; and the environment to health, wellness, and poverty.” —Michael Boehm, APS President 20


Texas Foray Sponsoring Committees/Sponsors: APS; MSA On Saturday, participants will be bused to one (or two) local state park(s) or other natural areas within approximately 1 hour travel time to collect fungi. On return to Austin, a boxed lunch will be provided along with examination of collected material and talks on Texas mushrooms by local experts. The site has yet to be determined. Possibilities include Hamilton Pool, Pedernales Falls State Park, Barton Springs, Balcones Canyonlands National Wildlife Refuge, and others.

Texas Hill Country Fruit Disease Sponsoring Committee/Sponsor: Extension The field trip will consist of visits to commercial vineyards and wineries in the beautiful Texas Hill Country to highlight diseases of wine grapes, including Pierce’s disease, cotton root rot, crown gall, and other challenging pathogens. Other features will be a peach orchard, where common diseases will be viewed. Alternative crops, such as pomegranate, fig, and pear, will be viewed and discussed at a Texas A&M University experimental facility in Fredericksburg, Texas.

Turfgrass Sponsoring Committee/Sponsor: Turfgrass Pathology This field trip will highlight the challenges of maintaining aesthetic and playable turfgrass areas in the southcentral region of the United States. Possible sites include the University of Texas athletic facilities (including Texas Memorial Stadium), Austin Golf Club, Barton Creek Golf Club, and the newly constructed Circuit of the Americas racetrack facility. The field trip will focus on the impact of these facilities on the economy and the particular management problems that are unique to the region, such as water management.

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Comparative Fungal Genomics with MycoCosm MycoCosm is a web-based fungal genomics resource developed by the U.S. Department of Energy Joint Genome Institute. It integrates genomic data from more than 200 fungi with interactive analysis tools. This workshop will give participants hands-on experience of exploring genomic data in both a genome centric and comparative genomics manner. • Fungal genomics for energy and environment. I. GRIGORIEV, DOE JGI, Walnut Creek, CA, U.S.A. • Comparative analysis with MycoCosm, part 1. R. OHM, DOE JGI, Walnut Creek, CA, U.S.A. • Comparative analysis with MycoCosm, part 2. A. KUO, DOE JGI, Walnut Creek, CA, U.S.A. • Comparative analysis with MycoCosm, part 3. R. RILEY, DOE JGI, Walnut Creek, CA, U.S.A.

Genotyping-by-Sequencing Sponsoring Committee/Sponsor: Genetics Genotyping-by-sequencing (GBS) uses barcoding and next-generation sequencing of DNA or RNA samples for high-resolution, low-cost genotyping. In this workshop, we will provide an overview of GBS theory and library preparation followed by step-by-step computational analyses of sequence data. Attendees will become familiar with resources for GBS, its limitations, and some real-world examples of its applications, including those for organisms without a reference genome.

How to Get Engaged: Advocacy Etiquette Sponsoring Committee/Sponsor: Public Policy Board This workshop will train participants in how to devise a compelling message and deliver it to legislators in both oral and written formats. Our plan is to invite an active Congressional legislative assistant to participate in the training and mock advocacy meetings. In addition, expertise will be provided by professional policy advocates.

Sampling Terms, Concepts, and Best Practices for Plant Pathologists Sponsoring Committees/Sponsors: Epidemiology, Crop Loss Assessment and Risk Evaluation (CARE), Pathogen Forensics The processes of selecting sampling units (pathogen isolates, plants, leaves, fields, etc.) without bias is an everyday necessity in plant pathology. In this workshop, sampling terms, concepts, and best practices will be presented. Emphasis will be placed on examining relevant issues related to the power of the test, sample size estimation, hierarchical sampling, and sampling for bulk test. Examples related to pathogen detection, mean separation, yield loss estimation, and seed health tests will be used. • Introduction: Sampling terms and concepts. F. NUTTER, Iowa State University, Ames, IA, U.S.A. • Sampling to increase power of a test and group (bulk) testing. P. ESKER, University of Costa Rica, San Jose, Costa Rica • Hierarchical sampling for plant pathogen detection. P. OJIAMBO, North Carolina State University, Raleigh, NC, U.S.A. • Issues in seed health testing. G. MUNKVOLD, Iowa State University, Ames, IA, U.S.A.

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