Nitric oxide is involved in the regulation of trehalose accumulation under heat stress in Pleurotus eryngii var. tuoliensis

文献类型： 外文期刊

第一作者： Kong, Wei-Wei

作者： Kong, Wei-Wei;Huang, Chen-Yang;Chen, Qiang;Zou, Ya-Jie;Zhao, Meng-Ran;Zhang, Jin-Xia

作者机构：

关键词： Heat stress;Nitric oxide;Oxidative damage;Pleurotus eryngii var;tuoliensis;Trehalose phosphate synthase

期刊名称：BIOTECHNOLOGY LETTERS （ 影响因子：2.461； 五年影响因子：2.457 ）

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收录情况： SCI

摘要： Little is known about the mechanism of how trehalose responds to various abiotic stresses although trehalose is considered as an important protectant in fungi. We investigated the role of nitric oxide (NO) in regulating trehalose accumulation during heat stress in Pleurotus eryngii var. tuoliensis. The addition of 100 or 200 g trehalose/1 significantly inhibited the production of thiobarbituric acid-reactive substance under heat stress in mycelial cells. High temperature induced endogenous trehaloseaccumulation and sodium nitroprusside, a NO donor, further enhanced trehalose accumulation. Finally, heat-induced trehalose accumulation could be arrested by the NO scavenger, 2-(4-carboxyphenyl)-4,4,5,5-tetra-methyl-imidazoline-l-l-oxyl-3-oxide, at 250muM by inhibiting the transcription of trehalose phosphate synthase gene. Thus NO plays an important role in the regulation of trehalose accumulation during abiotic stresses in P. eryngii var. tuoliensis.

分类号： Q7

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