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Publication Information

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Title: The quick and the deadly: Growth versus virulence in a seed bank pathogen

Author: Meyer, Susan E.; Stewart, Thomas E.; Clement, Suzette

Date: 2010

Source: New Phytologist. 187: 207-216.

Publication Series: Not categorized

Description: We studied the relationship between virulence (ability to kill nondormant Bromus tectorum seeds) and mycelial growth index in the necrotrophic seed pathogen Pyrenophora semeniperda. Seed pathosystems involving necrotrophs differ from those commonly treated in traditional evolution-of-virulence models in that host death increases pathogen fitness by preventing germination, thereby increasing available resources. Because fast-germinating, nondormant B. tectorum seeds commonly escape mortality, we expected virulence to be positively correlated with mycelial growth index.

Keywords: Bromus tectorum, cheatgrass, Drechslera campanulata, necrotrophic pathogenesis, Pyrenophora semeniperda (black fingers of death), seed bank pathogen, virulence evolution

Publication Notes:

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

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Meyer, Susan E.; Stewart, Thomas E.; Clement, Suzette. 2010. The quick and the deadly: Growth versus virulence in a seed bank pathogen. New Phytologist. 187: 207-216.

 


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