Expression of CsALDH12A1 Confers Enhanced Drought Tolerance in Arabidopsis
November 19, 2014| |
Aldehyde dehydrogenases (ALDHs) are considered as detoxifying enzymes which eliminate abiotic stress in organisms. An example is ALDH12A, which prevents proline toxicity. The team of Yanrong Wang from Lanzhou University aimed to mine drought-responsive genes from the xerophyte grass Cleistogenes songorica. They successfully cloned and analyzed the ALDH12A homologue in C. songorica, CsALDH12A1.
The results showed that CsALDH12A1 transcripts accumulated a six-fold abundance in response to drought stress. Transgenic Arabidopsis plants expressing CsALDH12A1 showed enhanced tolerance during drought stresses. The Malondialdehyde (MDA) content of the transgenic plants was significantly lower than in non-transgenic plants, confirming the role of ALDH12A1 in detoxifying reactive aldehydes. These results suggest that CsALDH12A1 has a crucial role in abiotic stress tolerance in plant development.
To learn more about this study, read the full article here: http://www.pomics.com/zhang_7_6_2014_438_444.pdf.
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