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MOnDAy SeSSiOnS – Monday Afternoon, Special & technical 1:30 p.m. S-43. A century of responses to Cronartium ribicola: Have we made the right choices? P. ZAMBINO (1). (1) USDA Forest Service, Southern California Shared Service Area, San Bernardino, CA, U.S.A. 2:00 p.m. S-44. Invasion, innovation, exploitation and coexistence: the birth and maturation of a pathosystem. T. GORDON (1). (1) University of California, Davis, CA, U.S.A. 2:30 p.m. S-45. Phytophthora - A day late and a dollar short. E. HANSEN (1). (1)Oregon State University, Corvallis, OR, U.S.A. Phytophthora: A Global Problem with Continued and Historical Importance 1:00 – 3:00 p.m. * 208 AB Section: Plant Disease Management Organizers/Moderators: Mohammad Babadoost, University of Illinois, Urbana, IL, Niklaus Grunwald, USDA-ARS, Oregon State University, Corvallis, OR Sponsoring Committees: Office of International Program Late blight of potato occurred in Europe during 1844-46, causing heavy crop losses, which resulted in the famous Irish famine. In the past 160 years, more than 80 Phytophthora species have been described. Today, virtually every crop is affected by one or more Phytophthora species. The science of plant pathology was borne after describing Phytophthora infestans, the causal agent of late blight of potato. This symposium will focus on reviewing the historical significance of Phytophthora pathogens and will evaluate current and future outlook for management of important Phytophthora diseases. 1:00 p.m. S-38. A historical review of Phytophthora diseases. E. HANSEN (1). (1) Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, U.S.A. 1:30 p.m. S-39. Late blight of potato: Past, present, and future. N. J. GRUNWALD (1). (1) USDA-ARS, Oregon State University, Corvallis, OR, U.S.A. 2:00 p.m. S-40. Phytophthora capsici: A growing threat to vegetable industries. M. BABADOOST (1). (1) University of Illinois, Urbana, IL, U.S.A. 2:30 p.m. S-41. Oak death epidemics by Phytophthora ramorum. D. M. RIZZO (1). (1) University of California, Davis, CA, U.S.A. 44 Bacterial Type III Secretion Systems: From Enigmatic avr and hrp Genes to Type III Effector-Mediated Suppression of Plant Immunity 3:15 – 6:15 p.m. * 208 CD Section: Molecular/Cellular Plant Microbe Interactions Organizers/Moderators: Jim Alfano, University of Nebraska, Lincoln, NE, Mary Beth Mudgett, Stanford University, Stanford, CA Sponsoring Committees: Bacteriology, Biochemistry, Physiology, and Molecular Biology; Genetics; and Graduate Student. Financial Sponsors: Monsanto, Pioneer This session will provide history on important discoveries on the type III protein secretion system and recent progress on bacterial type III effectors and their targets inside plant cells. Two talks will provide historical perspectives on avr and hrp genes as well as introduce our current state of knowledge. We now know that the vast majority of bacterial avr genes encode type III effectors and hrp genes encode a type III protein secretion system that injects type III effectors into plant cells. These perspective talks will highlight how avr genes and hrp genes were independently discovered and how it was discovered that type III effectors, many of which are encoded by avr genes, were injected into plant cells by the Hrp type III protein secretion system encoded by hrp genes. The other talks will focus on more recent advances in our understanding of the activities of specific type III effectors and their plant targets/cofactors and how the majority of type III effectors are apparently targeting the plant innate immune system. Highlighting the important molecular and biochemical advances made in the past 20 years, this session will provide insight to both the achievements and challenges that lie ahead in the study of bacterial pathogenesis and will provide a breadth of information fitting of a session held at the Centennial APS meeting. 3:15 p.m. S-46. From the discovery of avirulence proteins to effector-dependent inhibition of plant signal transduction. B. STASKAWICZ (1). (1) University of California, Berkeley, CA, USA 3:45 p.m. S-47. Learning about bacterial suppression of PAMP-triggered innate immunity from studying type III effectors AvrPto, HopM1, and AvrE1. S. Y. HE (1). (1) Michigan State University, East Lansing, MI, USA 4:15 p.m. S-48. Impact of Xanthomonas AvrBsT effector action on signaling and immunity in Arabidopsis. M. B. MUDGETT (1). (1) Stanford University, Stanford, CA, USA 4:45 p.m. S-49. Discovery of the Hrp system, a door to the inner world of bacterial virulence. A. COL- LMER (1). (1) Cornell University, Ithaca, NY, USA 5:15 p.m. S-50. Bacterial effector activation: Investigating the significance of cyclophilin-induced protein folding. G. COAKER (1). (1) University of California, Davis, CA, USA 5:45 p.m. S-51. The molecular basis of plant immunity suppression by the Pseudomonas syringae type III effector HopU1. J. ALFANO (1). (1) University of Nebraska, Lincoln, NE, USA
Monday Afternoon technical Sessions Listed in alphabetical order by title. Bacteria: Molecular, Cellular Biology II 1:00 – 3:00 p.m. * 200 HIJ Section: Molecular / Cellular Plant–Microbe Interactions Moderators: Zomary Flores, University of Wisconsin, Madison, WI; Keri Wang, Samuel Roberts Noble Foundation, Ardmore, OK 1:00 p.m. O-83. OxyR, a regulator of the hydrogen peroxide stress response in Ralstonia solanacearum is necessary for full virulence on tomato plants. Z. FLORES-CRUZ (1), C. Allen (1). (1) University of Wisconsin-Madison, Madison, WI, U.S.A. 1:15 p.m. O-84. Functional characterization of the harpin binding protein 1 gene in apple in relation to oxidative stress and fire blight resistance. D. K. SINGH (2), S. N. Maximova (1), T. W. McNellis (2). (1) The Department of Horticulture, Pennsylvania State University, University Park, PA, U.S.A., (2) The Department of Plant Pathology, Pennsylvania State University, University Park, PA, U.S.A. 1:30 p.m. O-85. Membrane associated stigmasterol plays an important role in plant innate immunity. K. WANG (2), C. Ryu (1), L. Kang (2), S. Muthappa (2), K. S. Mysore (2). (1) Korea Research Institute of Bioscience and Biotechnology, Yuseong, Daejeon, South Korea, (2) Samuel Roberts Noble Foundation, Ardmore, OK, U.S.A. 1:45 p.m. O-86. How do plants defend themselves against bacterial wilt? Response of resistant and susceptible tomato plants to infection by Ralstonia solanacearum. A. MILLING (1), C. Allen (1). (1) University of Wisconsin, Department of Plant Pathology, Madison, WI U.S.A. 2:00 p.m. O-87. Whole genome response of Agrobacterium to Acetosyringone: A phenolic inducer. A. ANAND (1), Z. Vaghchhipawala (1), Y. Tang (1), K. Mysore (1). (1) Samuel Roberts Noble Foundation, Ardmore, OK, U.S.A. 2:15 p.m. O-88. Fine-scale kinetic changes in Arabidopsis thaliana physiology during the hypersensitive response suggest a two-layered defense strategy that prevents bacterial invasion and halts infection. B. C. FREEMAN (1), G. A. Beattie (1). (1) Iowa State University, Ames, IA, U.S.A. 2:30 p.m. O-89. Biological differences among Pectobacterium species. M. MARQUEZ- VILLAVICENCIO (1), J. Glasner (2), N. Perna (2), A. Charkowski (1). (1) Department of Plant Pathology, University of Wisconsin - Madison, WI, U.S.A., (2) Genome Center of Wisconsin, University of Wisconsin - Madison, WI, U.S.A. 2:45 p.m. O-90. Impact of plant activators and copper on bacterial speck and host response in field-grown tomatoes. M. A. BORSICK HERMAN (1), H. W. Lange (1), S. L. Davidson (2), C. D. Smart (1). (1) Cornell University, Geneva, NY, U.S.A., (2) Hobart and William Smith Colleges, Geneva, NY, U.S.A. Chemical Control 1:00 – 3:00 p.m. * 200 FG Section: Plant Disease Management 1:00 p.m. O-91. The impact of Prohexadione-calcium and Paclobutrazol on the vascular tissue of apple. M. J. MCGRATH (1), J. M. Koczan (1), G. W. Sundin (1). (1) Michigan State University, East Lansing, MI U.S.A. 1:15 p.m. O-92. Baseline sensitivity of Fusicladium effusum to azoxystrobin and in vitro toxicity of the alternative oxidase inhibitor, salicylhydroxamic acid (SHAM). M. SEYRAN (1), K. L. Stevenson (1), T. B. Brenneman (1). (1) Department of Plant Pathology, University of Georgia, Coastal Plain Experiment Station, Tifton U.S.A. 1:30 p.m. O-93. Molecular characterization of Alternaria alternata field isolates highly resistant to the carboxamide fungicide boscalid. H. F. AVENOT (3), A. Sellam (2), D. Morgan (3), G. Karaoglanidis (1), T. J. Michailides (3). (1) Aristotelian University of Thessaloniki, Thessaloniki, Greece, (2) Biotechnology Research Institute, Montreal, Canada, (3) University of California Davis, Kearney Agricultural Center, Parlier, CA, U.S.A. 1:45 p.m. O-94. Monitoring resistance in Monilinia fructicola populations in the southeastern United States for enhanced brown rot control in peach. A. AMIRI (1), P. Brannen (2), G. Schnabel (1). (1) Clemson University, Clemson, SC, U.S.A., (2) University of Georgia, Athens, GA, U.S.A. 2:00 p.m. O-95. Dynamics of Sclerotinia homoeocarpa populations to curative applications of specificsite fungicides. J. BAN (2), Y. Jo (1), P. Koch (3), G. Jung (2). (1) Department of Plant Pathology & Microbiology, College Station, TX, U.S.A., (2) University of Massachusetts, Amherst, MA, U.S.A., (3) University of Wisconsin, Madison, WI, U.S.A. 2:15 p.m. O-96. Effects of cultivars, inoculation timing, and Fusarium head blight intensity on deoxynivalenol accumulation in winter wheat. J. HERNANDEZ NOPSA (1), S. N. Wegulo (1). (1) University of Nebraska-Lincoln, Lincoln, NE, U.S.A. 2:30 p.m. O-97. Effect of germicidal light on seed-borne Fusarium and sweet corn seedling vigor. N. MILLER (1), C. M. Ocamb (1). (1) Oregon State University, U.S.A. 2:45 p.m. O-98. Comparison of strobilurin type fungicides to control soybean seedling pathogens. M. L. ELLIS (1), K. D. Broders (1), A. E. Dorrance (1). (1) The Ohio State University, OARDC, Wooster, OH, U.S.A. 45 MOnDAy
Page 1 and 2: 1908 PROGRAM BOOK The American Phyt
Page 3 and 4: W elcome to the APS CentenniAl Meet
Page 5 and 6: Make the Most of your Centennial Me
Page 7 and 8: geneRAl inFORMAtiOn registration Ma
Page 9 and 10: Safety tips • Do not travel alone
Page 11 and 12: Minneapolis Convention Center 9
Page 13 and 14: Rochester Restroom Restroom Board R
Page 15 and 16: PROGRAM
Page 17 and 18: Molecular/ Cellular/ plant Microbe
Page 19 and 20: Centennial Sessions 100 Years of Th
Page 21 and 22: plenary Sessions Eight renowned spe
Page 23 and 24: Second plenary Session Monday, July
Page 25 and 26: DAily Meeting SCHeDule AnD HigHligH
Page 27 and 28: In the afternoon, the tour group jo
Page 29 and 30: Sunday, July 27 Sunday plenary, cen
Page 31 and 32: Monday, July 28 Monday plenary, cen
Page 33 and 34: tuesday, July 29 Tuesday centennial
Page 35 and 36: Wednesday Highlights Assess 2.0 Ima
Page 37 and 38: SeSSiOnS - Sunday Plenary & Afterno
Page 39 and 40: 1:15 p.m. O-2. Cross comparison of
Page 41 and 42: National University, Seoul, Korea,
Page 43 and 44: Monday Morning plenary Session List
Page 45 and 46: Host Resistance-Molecular 8:00 - 9:
Page 47: Monday Afternoon Special Sessions L
Page 51 and 52: (2), L. Zhou (4), K. Krampis (4), D
Page 53 and 54: tuesday Morning Special Sessions Li
Page 55 and 56: (2). (1) Sementes Farropilha, Patos
Page 57 and 58: L. E. Lagos (2), A. Bernal (3), S.
Page 59 and 60: y inoculation to optimize productio
Page 61 and 62: M. Tyler (7). (1) Cornell Universit
Page 63 and 64: Wednesday Morning Special Sessions
Page 65 and 66: 9:00 a.m. S-113. Clearing the Cloud
Page 67 and 68: spp. in soil of a hardwood forest i
Page 69 and 70: 10:15 a.m. O-176. Assessment of bac
Page 71 and 72: It is our great honor to tip our ha
Page 73 and 74: POSteR SCHeDule AnD POSteR titleS B
Page 75 and 76: Ralstonia solanacearum Race 3 biova
Page 77 and 78: A. E. Dorrance (1). (1) The Ohio St
Page 79 and 80: Sana’a, Yemen, (2) Department of
Page 81 and 82: Brazil, (2) Ministério da Agricult
Page 83 and 84: P-164 Telia of the Asian soybean ru
Page 85 and 86: P-208 Mature watermelon vine declin
Page 87 and 88: P-252 Impact of temperature on viru
Page 89 and 90: 2008 APS POSteRS epidemiology Bacte
Page 91 and 92: 2008 APS POSteRS P-304 virtual Flas
Page 93 and 94: Manhattan, KS, U.S.A., (2) North Da
Page 95 and 96: P-356 Enhancing potato system susta
Page 97 and 98: Molecular/Cellular plant-Microbe in
Page 99 and 100:
P-429 The bacterial phytotoxin coro
Page 101 and 102:
of Plant Pathology, University of W
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P-500 Development of a selective me
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ability to induce disease synergism
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P-561 Soil temperatures solarizatio
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P-602 Occurrence, survival, and pop
Page 111 and 112:
P-642 Control of bacterial spot of
Page 113 and 114:
P-679 Efficacy of various brassica
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PORTER (1), V. A. Coffman (1). (1)
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P-757 Combining sanitation practice
Page 119 and 120:
APS Salutes Its Sustaining Associat
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Annual Meeting Planning Committee T
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editors of Molecular Plant-Microbe
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S. F. Shamoun, W. C. Shortle, P. O.
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EXHIBITION
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2008 APS Centennial Meeting exhibit
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dow AgroSciences llC 213 9330 Zions
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united phosphorus, inc. 308 630 Fre
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Brubaker, H., P-339 Bruck, D., P-43
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Gutierrez, S. P., P-420 Gwinn, K. D
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Markell, S. G., P-132, P-170 Marlow
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Ryu, C., O-85, P-427, P-442 Ryu, C.
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Yonghao, L., P-672 Yoo, S., P-396 Y
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nOteS 135
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