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United States Department of Agriculture

Agricultural Research Service

Research Project: CHARACTERIZATION OF HOST-PATHOGEN INTERACTIONS IN BARLEY AND WHEAT

Location: Cereal Crops Research

Title: Pyrenophora teres: Profile of an Iincreasingly Damaging Barley Pathogen

Authors
item Liu, Zhaohui -
item Ellwood, Simon -
item Oliver, Richard -
item Friesen, Timothy

Submitted to: Molecular Plant Pathology
Publication Type: Review Article
Publication Acceptance Date: June 18, 2010
Publication Date: August 13, 2010
Citation: Liu, Z., Ellwood, S., Oliver, R., Friesen, T.L. 2010. Pyrenophora teres: Profile of an Iincreasingly Damaging Barley Pathogen. Molecular Plant Pathology. 12:1-19.

Interpretive Summary: Pyrenophora teres causal agent of net blotch of barley is a highly destructive pathogen. This pathogen exists in two forms designated P. teres f. teres and P. teres f. maculata which induce net form net blotch (NFNB) and spot form net blotch (SFNB), respectively. Genetic studies demonstrate that net blotch resistance in barley is present in both dominant and recessive forms. Early work on virulence of the pathogen showed toxin production to be important in disease induction. Since then, several labs have investigated mechanisms of disease induction showing this system to be complex in its host resistance and pathogen virulence mechanisms. Here we assemble recent information from the literature that describes this important pathogen and include reports describing its interaction with barley. We also include preliminary findings from a genome sequence survey.

Technical Abstract: Pyrenophora teres, causal agent of net blotch of barley exists in two forms designated P. teres f. teres and P. teres f. maculata which induce net form net blotch (NFNB) and spot form net blotch (SFNB), respectively. Genetic studies demonstrate that net blotch resistance in barley is present in both dominant and recessive forms. Early work on virulence of the pathogen showed toxin production to be important in disease induction. Since then, several labs have investigated effectors of virulence and avirulence showing this system to be complex in its host resistance and pathogen virulence mechanisms. Here we assemble recent information from the literature that describes this important pathogen and include reports describing its interaction with barley. We also include preliminary findings from a genome sequence survey.

Last Modified: 8/29/2014
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