期刊
BIOLOGIA PLANTARUM
卷 54, 期 3, 页码 495-501出版社
ACAD SCIENCES CZECH REPUBLIC, INST EXPERIMENTAL BOTANY
DOI: 10.1007/s10535-010-0087-y
关键词
heat stress; lipoxygenase; malondialdehyde; reactive oxygen species; Triticum aestivum
资金
- Natural Science Foundation of China [30671259]
- Fund for Doctor of Shandong Province [2008BS07007]
- Shandong Agricultural University
The effects of trehalose pretreatment on thylakoid membranes of winter wheat were investigated under heat stress. Under normal growth conditions, the winter wheat synthesized 502 mu g g(-1)(f.m.) trehalose, which increased to 1250 mu g g(-1)(f.m.) under heat stress and to 1658 mu g g(-1)(f.m.) in trehalose-pretreated seedlings. Under heat stress, proteins in the thylakoid membranes and the photosynthetic capacity were protected by trehalose pretreatment. Moreover, the electrolyte leakage, contents of malondialdehyde, superoxide anion and hydrogen peroxide, and lipoxygenase activity in trehalose-pretreated seedlings were lower than in the non-pretreated plants.
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