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of Plant Pathology, University of Wisconsin-
Madison, Madison, WI, U.S.A.
P-463 Cellulose binding domain encoding genes in
Phytophthora. R. JONES (1). (1) USDA-ARS, PSI,
GIFVL, Beltsville, MD, U.S.A.
P-464 Isolation and characterization of two xylanases from
Fusarium graminearum. S. W. MEINHARDT (1),
X. Dong (2), P. B. Schwarz (2). (1) Dept. of Plant
Pathology, North Dakota State University, (2) Dept.
of Plant Sciences, North Dakota State University
P-465 A small family of Phakopsora pachyrhizi proteins
localized to the cell wall. D. G. LUSTER (1), M.
B. McMahon (1), M. L. Carter (1). (1) USDA ARS
FDWSRU
P-466 Analysis of gene expression of Rhizoctonia solani,
(AG-4) to understand its virulence and biology.
D. K. LAKSHMAN (2), N. W. Alkharouf (1). (1)
Department of Computer and Information Sciences,
Towson University, Towson, MD, U.S.A., (2)
USDA-ARS, Beltsville, MD, U.S.A.
P-467 Molecular cloning of AvrHar from Pyrenophora teres f.
teres. Z. LIU (1), J. D. Faris (2), M. C. Edwards (2),
T. L. Friesen (2). (1) Department of North Dakota
State University, Fargo, ND, U.S.A., (2) USDA-ARS
Cereal Crops Research Unit, Northern Crop Science
Lab, Fargo, ND, U.S.A.
P-468 Characterization of mutant phenotype and
downstream targets of ust1, an Aspergillus StuA like
transcription factor in Ustilago maydis. N. CHACKO
(1), S. Gold (1). (1) University of Georgia, Athens,
GA, U.S.A.
P-469 Transcriptome of Fusarium graminearum during
plant infection and toxin biosynthesis. M. Pasquali
(2), E. Lysoe (1), K. Seong (2), J. Menke (3), H.
KISTLER (2). (1) Bioforsk, As, Norway, (2) USDA
ARS Cereal Disease Laboratory, St. Paul, MN,
U.S.A., (3) University of Minnesota, St. Paul, MN,
U.S.A.
P-470 Microarray analysis of deoxynivalenol-induced gene
expression in susceptible (cv. Morex) barley. S. A.
GARDINER (1), H. Jia (1), J. Boddu (1), G. J.
Muehlbauer (1). (1) University of Minnesota, St.
Paul, MN, U.S.A.
P-471 Characterization of the RB-mediated late blight
resistance phenotype. Y. CHEN (1), D. Halterman
(2), (1) University of Wisconsin-Madison, Madison,
WI, U.S.A., (2) University of Wisconsin-Madison,
USDA-ARS, Madison, WI, U.S.A.
P-472 Silencing of defense-related genes reveals different
mechanisms leading to race-specific resistance to
Phytophthora in soybean. M. Y. Graham (3), M.
R. Sinden (3), R. Huge (3), S. Subramanian (1), O.
Yu (1), S. St. Martin (2), T. L. GRAHAM (3). (1)
Donald Danforth Plant Science Center, St. Louis,
MO, U.S.A., (2) Horticulture and Crop Sciences,
Ohio State University, Columbus, OH, U.S.A., (3)
Plant Pathology, Ohio State University, Columbus,
OH, U.S.A.
P-473 An integrative approach to characterizing the
cucumber-Pseudoperonospora cubensis interaction.
E. A. Savory (1), M. TIAN (1), C. Erhardt (1), M.
Hausbeck (1), R. Hammerschmidt (1), B. Day (1).
(1) Department of Plant Pathology, Michigan State
University, East Lansing, MI, U.S.A.
P-474 Ptr ToxA alters photosystem I and II homeostasis
prior to accumulation of reactive oxygen species. V.
A. MANNING (1), A. L. Chu (1), J. E. Steeves (1),
T. J. Wolpert (1), L. M. Ciuffetti (1). (1) Oregon
State University, Corvallis, OR, U.S.A.
P-475 Genomic analysis of soybean defense response to
Sclerotinia sclerotiorum. B. CALLA (3), D. Simmonds
(1), S. J. Clough (2). (1) Agriculture and Agri-Food
Ottawa, Ontario, Canada, (2) USDA-ARS and
the University of Illinois, Urbana, IL, U.S.A., (3)
University of Illinois, Urbana, IL, U.S.A.
P-476 Identification of Phytophthora infestans genes
potentially involved in potato defense suppression
and potentially suppressed potato genes. M. A.
HENRIQUEZ (1), F. Daayf (1). (1) Department of
Plant Science, University of Manitoba, Winnipeg,
MB, Canada
P-477 Virulence and molecular characterization of Cuban
isolates from Peronospora hyoscyami sp. tabacina. S.
LARRAÑAGA (3), B. Muiño (2), O. Chacon (3),
J. A. Crespo (3). O. Borras (1). (1) Laboratory of
Plant Functional Genomics, Center for Genetic
Engineering and Biotechnology, (2) Plant Health
Institute, (3) Tobacco Research Institute, Plant
Pathology Department, San Antonio de lo Baños,
Habana, Cuba
P-478 Characterization of Aspergillus section Nigri groupmaize
interactions by a green fluorescent proteintagging
approach. E. R. PALENCIA (1), A. E.
Glenn (2), C. W. Bacon (2). (1) Plant Pathology
Department, University of Georgia, Athens, GA,
U.S.A., (2) USDA, ARS, Russell Research Center,
Athens, GA, U.S.A.
P-479 Increase in disease impacts of Septoria tritici on wheat
in Tunisia requires developing new control strategies.
W. HAMADA (1), R. Zouid (1). (1) National
Agronomic Institute of Tunisia, Tunis, Tunisia
P-480 Functional characterization of necrosis and ethyleneinducing
like proteins (NLPs) from a necrotrophic
fungus Sclerotinia sclerotiorum. D. LIBERTI (1),
D. Qutob (1), M. Gijzen (1), K. F. Dobinson (1).
(1) Agriculture and Agri-Food Canada, London,
Ontario, Canada
P-481 Glycoproteins secreted by germinating spores of
Magnaporthe oryzae determinine the specificity like a
suppressor in rice plant-blast interaction. A. Shinjo
(1), Y. Okamoto (1), A. Kadoiri (1), T. Arie (1), T.
TERAOKA (1). (1) Tokyo Univ. Agric. & Techn.
(TUAT), Fuchu, Tokyo, Japan
P-482 Generation and analysis of expression sequence
tags from haustoria of the wheat stripe rust fungus
Puccinia striiformis f. sp. tritici. C. YIN (3), X. Chen
(2), Z. Kang (1), S. Hulbert (3). (1) Northwest A&F
University, Yangling, Shaanxi, China, (2) USDA-
ARS and Washington State University, Pullman, WA,
U.S.A., (3) Washington State University, Pullman,
WA, U.S.A.
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