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How plants put down roots
Date:3/15/2010

t sufficient on its own. The researchers concluded that MONOPTEROS must deliberately activate other genes. In a comprehensive survey of all of the genes activated by MONOPTEROS, they identified two genes that already play a role in embryonic development: TMO5 and TMO7 (TMO = Target of MONOPTEROS). Both of these genes are required for the formation of the root tissue. For this purpose, the protein formed by the TMO7 gene must migrate from the location of its emergence in the embryo to the root founder cell. "With TM07 we have identified a hitherto unknown intercellular signal for root formation in the embryo," says Gerd Jrgens. The detective work in the plant researchers' genetics laboratory does not end here, however. "Because the transcription factor TM07 is involved in other regulatory network of plant development, there can be no doubt that it holds further insights in store for us," says Jrgens.


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Contact: Gerd Jrgens
gerd.juergens@zmbp.uni-tuebingen.de
49-707-160-11309
Max-Planck-Gesellschaft
Source:Eurekalert

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