Current Research in Plant pathology

Characterization of genes regulated during sclerotial development in the fungal plant pathogen Sclerotinia sclerotiorum (Lib.) de Bary
Moyi Li, 2008
Sclerotinia sclerotiorum; (Lib.) de Bary is a devastating fungal phytopathogen with a broad host range and global distribution. The resting structures produced by this fungus, sclerotia, are cruc...
Role of HISTONE MONOUBIQUITINATION 1 (HUB 1) in resistance against necrotrophs and plant development
Rahul Dhawan, 2008
We studied the function of Arabidopsis ; HISTONE MONOUBIQUITINATION 1; (; HUB1; ), the E3 ligase for histone H2B, in plant defense against necrotrophic pathogens and other plant functions. ; HU...
Biotic and abiotic factors associated with Fusarium ear rot of maize caused by Fusarium verticillioides
Michael Wayne Parsons, 2008
Fusarium ear rot, caused by ; Fusarium verticillioides; , is one of the most common worldwide diseases of maize, causing yield and quality reductions as well as contamination of grain by fumonisin...
Overwinter survival of Sclerotium rolfsii and Sclerotium rolfsii var. Delphinii, screening hosta for resistance to Sclerotium rolfsii var. delphinii, and phylogenetic relationships among Sclerotium species
Zhihan Xu, 2008
In this study, three aspects of plant-pathogenic ; Sclerotium; fungi were investigated: overwinter survival of ; Sclerotium rolfsii ; and ; S. rolfsii; var. ; delphinii; ; development of a r...
Bean pod mottle virus: Spatial and temporal dynamics at different spatial scales and the impact of time of infection on soybean yield and quality
Emmanuel Byamukama, 2008
A comprehensive state-wide soybean disease survey was carried out during the 2005- 2007 growing seasons to determine seasonal and geospatial patterns of soybean diseases in Iowa. ; Bean pod mottle ...
Nighttime stomatal conductance in C(3) plants
Hsien Ming Easlon, 2008
Incomplete stomatal closure at dusk and nighttime stomatal opening in C; 3; plants results in substantial transpirational water loss when no carbon gain is possible. C; 3; plants are capable of...
Identification of genes contributing to adult plant leaf rust resistance in winter wheat in Oklahoma
Muhammad Safeer-ul Hassan, 2008
Scope and Method of Study; . Field and greenhouse trials were conducted to test the level of success in transferring adult plant resistance from spring wheat to winter wheat in the breeding prog...
New perspectives on the epidemiology of citrus stubborn disease in California orchards
Alexandre Furtado Silveira Mello, 2008
Scope and Method of Study; . California is the major citrus fresh fruit producer in the US and citrus stubborn disease (CSD), caused by ; Spiroplasma citri; , has been present in that state for ...
Genetic diversity of Rhizoctonia solani causing web blight and sources of resistance in Phaseolus spp.
Nancy Annette Gonzalez-Martinez, 2008
Web blight of common beans caused by ; Rhizoctonia solani; is a very important disease in bean growing regions of Latin America and the Caribbean. There are no cultivars with high levels of resis...
The role of calcium ion-conducting cyclic nucleotide gated ion channels in signal transduction cascades related to plant growth, development, pathogen defense and programmed cell death
Wei Ma, 2008
cAMP is known to act as a secondary messenger in plants; however no specific protein has been heretofore identified as activated by cAMP in a manner associated with a signaling cascade in plants. C...
Molecular phylogeny and increases of yield and the antioxidants selenium and ergothioneine in basidiomata of Pleurotus eryngii
Alma Edith Rodriguez Estrada, 2008
The ; Pleurotus eryngii; species complex comprises at least five varieties: ; eryngii, ferulae, elaeoselini, nebrodensis; and ; tingitanus; . This species is unique among the genus ; Pleurotu...
Characterization of defense responses in the Arabidopsis thaliana mutant enhanced disease resistance 1
Katy M. Christiansen, 2008
Plants must be able to defend against a variety of diseases and nearly every cell must contain the machinery necessary for disease resistance. A mutant in ; Arabidopsis thaliana, ; e; nhanced ...
The deposition of Phakopsora pachyrhizi urediniospores on soybean
Nicholas S. Dufault, 2008
Soybean rust, caused by ; Phakopsora pachyrhizi; Sydow, is a potentially devastating foliar disease of soybeans (; Glycine max ; ) that occurs throughout the United States and the world. This ob...
Solanum lycopersicum as a model system to study pathogenicity mechanisms of Moniliophthora perniciosa, the causal agent of witches' broom disease of Theobroma cacao
Jean-Philippe Marelli, 2008
Theobroma cacao; produces cocoa beans, an essential ingredient for the production of chocolate. This research focuses on enhancing disease resistance in ; Theobroma cacao; via two approaches: T...
Metabolite profiling of leaves and vascular exudates in soybean grown under free-air concentration enrichment
Swarnamali Indumathie Rupassara, 2008
My research was aimed at profiling of metabolites in ; Glycine max; (soybean; cultivar: Pioneer-93B15). Specific characteristics of identified and unidentified analytes in the profiles were tabul...
Seed and seedling disease of corn and soybean in Ohio: The role of Fusarium graminearum, Pythium species diversity, fungicide sensitivity, Pythium community composition, and soil properties in disease severity
Kirk Dale Broders, 2008
Both ; Pythium; and ; Fusarium; spp. can be readily isolated from corn and soybeans plants where stand establishment is an issue. In the first study, isolations were made from symptomatic corn ...
Global analysis of disease resistance genes in lettuce
Leah Kathleen McHale, 2008
In order to gain a detailed understanding of the genetic basis of disease resistance in lettuce, candidate resistance genes were mapped relative to resistance phenotypes, resistance candidate genes...
Development of new postharvest fungicides for integrated management of citrus green mold caused by Penicillium digitatum
Loukas Kanetis, 2007
Green mold, caused by the fungus ; Penicillium digitatum ; (Pers.:Fr.) Sacc., is the most important postharvest disease of citrus. Crop losses caused by the disease can have significant economic ...
Using rootstocks to manipulate vine physiological performance and mediate changes in fruit and wine composition
Tiago Luis Barros Sampaio, 2007
A rootstock trial was established in 1997 at the OSU Woodhall vineyard, located in the Southern Willamette Valley, which included two experiments. The first experiment was a factorial of four varie...
Biology and management of Meloidogyne chitwoodi using oxamyl on potato in the western United States
Nicholas L. David, 2007
Field trials were conducted during 2001 to 2003 to investigate soil population dynamics of ; Meloidogyne chitwoodi; , tuber symptom suppression using oxamyl, and post-harvest tuber symptom develop...