http://www.physorg.com/news113835301.html

 snippet

"Using “evolutionary algorithms,” which mimic evolution by selecting for desirable traits, the model hunted for enzymes that – if increased – would enhance plant productivity. If higher concentrations of an enzyme relative to others improved photosynthetic efficiency, the model used the results of that experiment as a parent for the next generation of tests.  "

 I remember using genetic algorithms in my AI for path finding (for games), but anyway I thought this article was neat.