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Research team unravels tomato pathogen's tricks of the trade
Date:11/3/2011

acteria isolated in 1960.

The research team found that the pathogen likely evolved on a relatively recent time scale and continues to adapt to the tomato by minimizing its recognition by the tomato immune system. This suggests that new pathogen variants with increased virulence are spreading around the globe unobserved, presenting a potential threat to biosecurity. Ultimately, it calls for more precise methods of pathogen identification to replace outdated taxonomic descriptions that were established at a time when it was impossible to classify bacteria precisely because the necessary molecular techniques had not been developed yet.

This particular pathogen is important to study because "it has been used as a model pathogen by many labs around the world and is economically significant because it reduced tomato quality and yield," said Vinatzer. He is extending the research project to investigate where the pathogen originally evolved, how it is spreading around the globe, and what can be done to interfere with its spread, including how the tomato might be engineered to be more resistant to the pathogen.


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Contact: Lindsay Key
ltkey@vt.edu
540-231-6594
Virginia Tech
Source:Eurekalert  

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