Monday, August 1, 2011

Plants create new DNA after animal attacks

University of Illinois- Half-eaten plants grow back bigger and faster than they would have if they'd never been attacked — it's all about doubling down on DNA.
Not only can plants grow back stronger than they would have if they'd just been left alone, they also gain a reproductive advantage. That's despite the fact that a substantial part of the organism has just been eaten, which is about as traumatic an experience as one could ever hope to have. The trick to their triumphant survival is known as endoreduplication, in which the plants start replicating their chromosomes over and over without making any new cells.

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