Interactive transcriptome analyses of Northern Wild Rice ( L.) and show convoluted communications during the early stages of fungal brown spot development.

Fungal diseases, caused mainly by spp., are past and current threats to Northern Wild Rice (NWR) grain production and germplasm preservation in both natural and cultivated settings. Genetic resistance against the pathogen is scarce.

Diversity of Strains in the Complex Causing Bacterial Stem Blight of Alfalfa () in the United States.

Alfalfa growers in the Intermountain West of the United States have recently seen an increased incidence in bacterial stem blight (BSB), which can result in significant herbage yield losses from the first harvest. BSB has been attributed to pv and ; however, little is known about the genetic diversity and pathogenicity of these bacteria or their interaction with alfalfa plants. Here, we present a comprehensive phylogenetic and phenotypic analysis of and strains causing BSB on alfalfa.

Prevalence and Importance of the Necrotrophic Effector Gene in Populations Collected from Spring Wheat and Barley.

is a necrotrophic fungal pathogen that causes foliar and root diseases on wheat and barley. These diseases are common in all wheat- and barley-growing regions, with more severe outbreaks occurring under warm and humid conditions. can also infect a wide range of grass species in the family Poaceae and secrete , an important necrotrophic effector also identified other wheat leaf spotting pathogens.

Sensitivity of Isolates Pathogenic on Cultivated Wild Rice to the Quinone Outside Inhibitor Azoxystrobin.

The occurrence of fungal brown spot, caused by , has increased in cultivated wild rice () paddies in spite of the use of azoxystrobin-based fungicides. The active ingredient blocks electron transfer at the quinone outside inhibitor (QoI) site in the mitochondrial cytochrome within the 1 complex, thus obstructing respiration. The in vitro averaged EC of baseline isolates collected in 2007 before widespread fungicide use was estimated to be 0.

Genome Assembly of the Fungus Cochliobolus miyabeanus, and Transcriptome Analysis during Early Stages of Infection on American Wildrice (Zizania palustris L.).

The fungus Cochliobolus miyabeanus causes severe leaf spot disease on rice (Oryza sativa) and two North American specialty crops, American wildrice (Zizania palustris) and switchgrass (Panicum virgatum). Despite the importance of C. miyabeanus as a disease-causing agent in wildrice, little is known about either the mechanisms of pathogenicity or host defense responses.

Pushing the boundaries of resistance: insights from Brachypodium-rust interactions.

The implications of global population growth urge transformation of current food and bioenergy production systems to sustainability. Members of the family Poaceae are of particular importance both in food security and for their applications as biofuel substrates. For centuries, rust fungi have threatened the production of valuable crops such as wheat, barley, oat, and other small grains; similarly, biofuel crops can also be susceptible to these pathogens.

Parallel expression profiling of barley-stem rust interactions.

The dominant barley stem rust resistance gene Rpg1 confers resistance to many but not all pathotypes of the stem rust fungus Puccinia graminis f. sp. tritici (Pgt).