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Bacterial 'ropes' tie down shifting Southwest
Date:11/16/2009

ve further shown that the evolution of the trait occurred separately in three different genera; an example of convergent evolution, rather than a tie to a single common rope-building ancestor.

In the desert, the initial stabilization of topsoil by rope-builders promotes colonization by a multitude of other microbes. From their interwoven relationships arise complex communities known as "biological soil crusts," important ecological components in the fertility and sustainability of arid ecosystems.


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Contact: Margaret Coulombe
margaret.coulombe@asu.edu
Arizona State University
Source:Eurekalert  

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Bacterial 'ropes' tie down shifting Southwest
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