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Molecular/Cellular plant–Microbe
interactions
Bacteria: Genetics/Molecular Biology/Cell Biology
P-391 Expression profiling analyses of Xanthomonas oryzae
pv. oryzae mediated by the RaxR response regulator
required for AvrXa21 activity. M. SRIARIYANUN
(1). (1) University of California, Davis, CA, U.S.A.
P-392 Microscopy and microarray analyses of host response
of sweet orange (Citrus sinensis) to Candidatus
Liberibacter asiaticus infection. J. KIM (1), U.
S. Sagaram (1), J. K. Burns (1), N. Wang (1). (1)
Citrus Research and Education Center, University of
Florida, Lake Alfred, FL, U.S.A.
P-393 Characterization of the rpoN global regulatory
gene of Pseudomonas syringae pv. syringae B728a
and its impact on the plant-pathogen interaction.
A. LORGE (1), D. Gross (1). (1) Texas A&M
University, College Station, TX, U.S.A.
P-394 Analysis of genes involved in biofilm formation of
Erwinia amylovora: Implications in pathogenesis. J.
M. KOCZAN (1), G. W. Sundin (1). (1) Michigan
State University, East Lansing, MI, U.S.A.
P-395 2R,3R-butanediol, a bacterial volatile produced by
Pseudomonas chlororaphis O6 is involved in induction
of systemic tolerance to drought and high salt stresses
in Arabidopsis thaliana. S. Cho (1), B. Cho (1),
K. Yang (1), Y. KIM (1). (1) Department of Plant
Biotechnology and Biotechnology Research Institute,
Chonnam National University, Gwangju, Korea
P-396 Transgenic rice plants expressing an active tobacco
mitogen-activated protein kinase kinase induce
multiple defense responses. S. Yoo (1), J. Jeong (1),
D. Yang (1), Y. Kim (1), B. Cho (1), K. YANG
(1). (1) Department of Plant Biotechnology and
Biotechnology Research Institute, Chonnam
National University, Gwangju, Korea
P-397 Mitogen-activated protein kinase cascade in signaling
polyamine biosynthesis in tobacco. E. Jang (2),
K. Min (2), S. Nam (3), S. Zhang (1), Y. Kim
(2), B. Cho (2), K. YANG (2). (1) Department of
Biochemistry, University of Missouri-Columbia,
Columbia, MO, U.S.A., (2) Department of Plant
Biotechnology and Biotechnology Research Institute,
Chonnam National University, Gwangju, Korea, (3)
Jeonnam Agricultural Research & Extension Services,
Jeonnam, Naju, Korea
P-398 Identification of gene-specific markers for resistance
to Erwinia amylovora (fire blight) in Malus (apple) by
a functional genomics approach. J. L. NORELLI (6),
S. E. Gardiner (3), M. Malnoy (1), H. S. Aldwinckle
(1), R. E. Farrell (4), M. B. Horner (2), J. Celton
(3), A. M. Baldo (5), D. R. Bowatta (3), C. M.
Carlisle (3), D. A. Lalli (6), C. L. Bassett (6), M. E.
Wisniewski (6). (1) Cornell University, Geneva, NY,
U.S.A., (2) HortResearch, Havelock North, New
Zealand, (3) HortResearch, Palmerston North, New
Zealand, (4) Pennsylvania State University, York, PA,
U.S.A., (5) USDA-ARS, Geneva, NY, U.S.A., (6)
USDA-ARS, Kearneysville, WV, U.S.A.
P-399 Explaining the association between apple tree stress
and resistance to the fire blight bacterium Erwinia
amylovora. H. K. NGUGI (2), D. K. Singh (1), B.
L. Lehman (2), J. W. Travis (2), T. W. McNellis (1).
(1) The Department of Plant Pathology, Pennsylvania
State University, University Park, PA, U.S.A., (2)
The Department of Plant Pathology, Biglerville, PA,
U.S.A.
P-400 The Rcs phosphorelay system is essential for
pathogenicity in Erwinia amylovora. D. WANG
(1), Y. Zhao (1). (1) Department of Crop Sciences,
University of Illinois, Urbana, IL, U.S.A.
P-401 Molecular characterization of the PhoP/PhoQ
two-component signal transduction system in
Erwinia amylovora. S. NAKKA (1), Y. Zhao (1). (1)
Department of Crop Sciences, University of Illinois,
Urbana, IL, U.S.A.
P-402 RetS is a Pseudomonas syringae B728a hybrid sensor
kinase that controls swarming, regulates expression
of the type VI secretion system, and contributes to
colonization of bean leaves. A. R. RECORDS (1),
D. C. Gross (1). (1) Texas A&M University, Dept.
of Plant Pathology & Microbiology, College Station,
TX, U.S.A.
P-403 Genes of Xanthomonas citri ssp. citri involved in
disease development. J. F. FIGUEIREDO (2), J.
B. Jones (2), J. H. Graham (3), F. F. White (1). (1)
Kansas State University, Manhattan, KS, U.S.A., (2)
University of Florida, Gainesville, FL, U.S.A., (3)
University of Florida, Lake Alfred, FL, U.S.A.
P-404 AmbR1 and AmbR2 are two transcriptional
regulators essential for the antifungal activity of
Burkholderia sp. strain MS14. G. Gu (2), S. LU (2),
N. Wang (1). (1) Citrus Research and Education
Center, University of Florida, Lake Alfred, FL,
U.S.A., (2) Department of Entomology and Plant
Pathology, Mississippi State University, Mississippi
State, MS, U.S.A.
P-405 Arabidopsis defense pathways activated by Bacillus
mojavensis isolate 203-7 and B. mycoides isolate BmJ.
O. T. NEHER (1), B. J. Jacobsen (1). (1) Montana
State University, Bozeman, MT, U.S.A.
P-406 Structural dynamics of NDR1 function in mediating
plant resistance to Pseudomonas syringae. C. P.
KNEPPER (1), E. Savory (1), B. Day (1). (1)
Michigan State University, East Lansing, MI, U.S.A.
P-407 Use of a GUS reporter system to characterize the
regulon controlling syringomycin production in
Pseudomonas syringae pv. syringae. J. L. WILLIAMS
(1), D. C. Gross (1). (1) Texas A&M University,
Department of Plant Pathology and Microbiology,
College Station, TX, U.S.A.
P-408 Clp mediates signal transduction for xylanase and
motility, not for biofilm formation in Xanthomonas
oryzae pv. oryzae. K. JEONG (1), G. Kim (1), W.
Kim (2), J. Cha (1). (1) Dept. of Plant Medicine,
Chungbuk National University, Cheongju, Korea, (2)
Honam Agricultural Research Institute, RDA, Iksan,
Korea
P-409 RhlB, a regulon of RpfF, determines virulence of
Xanthomonas oryzae pv. oryzae at low inoculum
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