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New strategy for drought tolerance in crops : Shutting down the plant’s growth inhibition under mild stress

ScienceDaily (May 18, 2011)

New strategy for drought tolerance in crops : Shutting down the plant’s growth inhibition under mild stress

ScienceDaily (May 18, 2011)

Researchers have unveiled a mechanism that can be used to develop crop varieties resistant to mild droughts. It turns out that under non-lethal stress conditions, plants inhibit growth more than necessary. Shutting down this response opens new opportunities for yield improvement.

Much of this research has focused on improved plant survival under very severe drought. However, as shown by Aleksandra Skirycz and Korneel Vandenbroucke, plants that are more likely to survive these extreme conditions do not grow better under more mild drought conditions. This is important as in the field drought rarely is severe enough to kill plants, but rather affects their growth. The paper, published in Nature Biotechnology, also shows that plants actively choose to grow slower when water gets limiting, although they have enough resources to keep growing.

Story Source

The above story is based on materials provided by VIB (the Flanders Institute for Biotechnology).

Pour en savoir plus (ScienceDaily)

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