The effects of overexpression of formaldehyde dehydrogenase gene from Brevibacillus brevis on the physiological characteristics of tobacco under formaldehyde stress

The effects of overexpression of formaldehyde dehydrogenase gene from Brevibacillus brevis on the... The faldh gene encodes the Brevibacillus brevis glutathione-dependent formaldehyde dehydrogenase (FALDH), an enzyme involved in formaldehyde metabolism. In the present work, we have investigated the physiological characteristics of transgenic faldh tobacco under formaldehyde stress. Overexpression of B. brevis FALDH confers tobacco tolerance to high HCHO concentrations. The transgenic tobacco lines had the higher biomass, produced the higher content of total proteins and soluble sugars, the lower levels of MDA, protein carbonyl (PC), and H2O2 as compared with the wild-type tobacco under HCHO stress. The contents of chlorophyll (Chl), including Chl a, Chl b, and the ratio of Chl a/b, and the content of anthocyanidin in transgenic plants under HCHO stress were also higher than that in wild-type tobacco. These results show that high HCHO tolerance and changes of physiological characteristics related to stress tolerance were due to the overexpressing of FALDH in tobacco. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

The effects of overexpression of formaldehyde dehydrogenase gene from Brevibacillus brevis on the physiological characteristics of tobacco under formaldehyde stress

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Publisher
Springer US
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443713060083
Publisher site
See Article on Publisher Site

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