When under attack, plants can signal microbial friends for help
Monday, October 20, 2008 - 17:42
in Biology & Nature
The green represents the beneficial bacterium Bacillus subtilis, which has formed a biofilm on the Arabidopsis root surface. Researchers at the University of Delaware have discovered that when the leaf of a plant is under attack by a pathogen, it can send out an S.O.S. to the roots for help, and the roots will respond by secreting an acid that brings beneficial bacteria to the rescue.
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