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Conquering conker canker
Date:4/19/2010

it is swept into the atmosphere before being rained back down in new locations, or it may be carried by some kind of vector such as insects."

The success of the pathogen may be helped by a cluster of genes that help it to acquire iron, an essential nutrient for virulent bacteria. Pae also has an unusual cluster of genes which may be involved in the degradation of compounds derived from woody tissues. A plant will normally produce nitric oxide as part of its defence mechanism, but Pae may have the ability to inhibit this response via two genes identified by the scientists.

The differences between the Indian and British strains give the first clues to its virulence on European horse chestnut. The British strains contain additional genes that enable it to live off the sucrose found in the tree sap.

The genome sequence will allow scientists to determine which genes might be necessary for infection of a tree host so they can be targeted to control the disease.

"Emerging human and animal diseases are routinely sequenced and this research shows the usefulness of doing the same for plant pathogens," says Professor Kamoun from the Sainsbury Laboratory.

"We can quickly generate large amounts of genetic information on emerging plant diseases that is valuable for combating current and future biosecurity threats."


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Contact: Zoe Dunford
zoe.dunford@bbsrc.ac.uk
44-776-816-4185
Norwich BioScience Institutes
Source:Eurekalert

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