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NC State researchers identify genes key to hormone production in plants
Date:4/3/2008

TAA1 gene recognizes the presence of ethylene as its signal to make proteins that in turn synthesize auxin, which controls growth.

The researchers found that if the TAA1 gene and two other related genes were knocked out or inactive, the plant had 50 percent less auxin than normal.

Their findings are the first to definitively establish a relationship between a particular family of genes, tissue-specific ethylene response, and auxin production in plants.

If we want to do intelligent manipulation of plants, to breed them so that they ripen at a certain rate, or so that theyre well-adapted to particular environments, then we need to understand more about the ways that these hormones interact or talk to each other, Alonso says. This research gives us concrete evidence for at least one way in which this happens.


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Contact: Tracey Peake
tracey_peake@ncsu.edu
919-515-6142
North Carolina State University
Source:Eurekalert  

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