Annual Meeting Program Book - American Phytopathological Society

of Plant Pathology, Washington State University,
Pullman, WA, U.S.A.; (2) Department of Crop
and Soil Sciences, Washington State University,
Pullman, WA, U.S.A.; (3) USDA-ARS, Root
Disease and Biological Control Research Unit,
Pullman, WA, U.S.A.
10:20 a.m. P-726. Trichothecene production and sporulation
by Myrothecium verrucaria in response to substrate
composition. M. A. WEAVER (1), R. M.
Zablotowicz (1), R. E. Hoagland (1), C. D. Boyette
(1). (1) USDA ARS, Stoneville, MS, U.S.A.
10:25 a.m. P-816. Resistance to wheat stem rust in spelt
wheat, wild emmer, and triticale. P. D. OLIVERA
FIRPO (1), M. Rouse (1), Y. Jin (2). (1) Department
of Plant Pathology, University of Minnesota,
St. Paul, MN, U.S.A.; (2) Department
of Plant Pathology, University of Minnesota and
USDA-ARS, Cereal Disease Laboratory, St. Paul,
MN, U.S.A.
10:30 a.m. P-836. Potential use of qPCR for evaluating resistance
to leaf scald in sugarcane. F. F. GARCES
(1), J. Hoy (2). (1) Louisiana State University,
Baton Rouge, LA, U.S.A.; (2) Plant Pathology
and Crop Physiology, Agcenter, Louisiana State
University, Baton Rouge, LA, U.S.A.
10:35 a.m. P-838. High-throughput genetic analysis and association
mapping to identify novel genes for resistance
to stripe rust in spring wheat germplasm.
M. WANG (1), Q. Li (2), L. Xu (3), J. Zhao (2),
J. Ma (2), X. Chen (4). (1) Department of Plant
Pathology, Washington State University, Pullman,
WA, U.S.A.; (2) Department of Plant Pathology,
Washington State University, Pullman, WA,
U.S.A., and Northwest A&F University, Yangling,
Shaanxi, China; (3) Department of Plant
Pathology, Washington State University, Pullman,
WA, U.S.A., and College of Plant Protection,
Northwest A&F University, Yangling, Shaanxi,
China; (4) USDA-ARS and Department of Plant
Pathology, Washington State University, Pullman,
WA, U.S.A.
10:40 a.m. P-832. Family variation in Phytophthora lateralis
resistance in Port-Orford-cedar: Greenhouse and
raised bed testing. R. A. SNIEZKO (1), P. Reeser
(2), A. Kegley (1), S. Kolpak (1), E. Hansen (2).
(1) USDA FS/Dorena Genetic Resource Center,
Cottage Grove, OR, U.S.A.; (2) Oregon State
University/Botany & Plant Pathology, Corvallis,
OR, U.S.A.
10:45 a.m. P-841. Selection of plant-defense peptides from
phage-display libraries directed towards Gibberella
zeae for control of head blight of wheat.
N. W. GROSS (1), Z. D. Fang (1), F. J. Schmidt
(1), J. T. English (1). (1) University of Missouri,
Columbia, MO, U.S.A.
sPeCIal sessIons – Tuesday afternoon
Listed in alphabetical order by title.
The Balance Is Tilting: Finding Resistance to Vascular
Wilting
1:00 – 3:30 p.m.; B110-112
Section: Molecular/Cellular/Plant-Microbe Interactions
Organizers: Dennis Halterman, USDA/ARS University of
Wisconsin-Madison, Madison, WI, U.S.A.; Gary Vallad, University
of Florida, Wimauma, FL, U.S.A.
Sponsoring Committees: Host Resistance; Cellular and Molecular
Phytopathology
Financial Sponsors: Seminis, USDA/NRI
Moderator: Dennis Halterman, USDA/ARS University of
Wisconsin-Madison, Madison, WI, U.S.A.
Pathogens that infect the vascular systems of plants and cause
wilting, such as some species of Verticillium, Ralstonia, and
Fusarium, are as diverse as the plants they infect. However,
difficulty in quantitating disease symptoms, developing rapid
screening methods for resistance, separating immunity and
tolerance, and incorporating resistance into breeding lines,
all present challenges regardless of the pathogen or host being
studied. By bringing together scientists studying resistance to
these diseases, we hope to foster discussion of challenges and
successes that might not normally be presented in a session
that is specific to the pathogen type.
1:00 p.m. S-130. Breeding for resistance – New approaches
and challenges. R. HAYES (1), G. E. Vallad (2),
L. K. McHale (3), M. J. Truco (3), O. E. Ochoa
(3), R. W. Michelmore (3), S. J. Klosterman (1),
K. Maruthachalam (4), K. V. Subbarao (4). (1)
USDA/ARS, Salinas, CA, U.S.A.; (2) University
of Florida, Gulf Coast Research and Education
Center, Wimauma, FL, U.S.A.; (3) University of
California, The Genome Center and Department
of Plant Sciences, Davis, CA, U.S.A.; (4) University
of California, Department of Plant Pathology,
Salinas, CA, U.S.A.
1:30 p.m. S-131. Molecular mechanisms of resistance –
Functions of major R genes. D. HALTERMAN
(1). (1) USDA/ARS, Madison, WI, U.S.A.
2:00 p.m. S-132. Secondary metabolites and toxins – What
is causing disease symptoms? A. BELL (1), J. Liu
(1), R. D. Stipanovic (1). (1) USDA/ARS, College
Station, TX, U.S.A.
2:30 p.m. S-133. Molecular interactions between Fusarium
oxysporum and Arabidopsis. A. DIENER (1). (1)
University of California Los Angeles, Los Angeles,
CA, U.S.A.
3:00 p.m. S-134. Molecular responses to quantitative bacterial
wilt resistance in tomato. A. MILLING (1).
(1) University of Wisconsin-Madison, Madison,
WI, U.S.A.
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