Overexpression of SlGRAS40 in Tomato Enhances Tolerance to Abiotic Stresses and Influences Auxin and Gibberellin Signaling.
Overexpression of SlGRAS40 in Tomato Enhances Tolerance to Abiotic Stresses and Influences Auxin and Gibberellin Signaling.
复制标题
SlGRAS40 在番茄中的过度表达可增强对非生物胁迫的耐受性并影响生长素和赤霉素信号传导
DOI：
10.3389/fpls.2017.01659
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发表时间：
2017
影响因子：
5.6
通讯作者：
Li Z
中科院分区：
文献类型：
--
作者：
Liu Y;Huang W;Xian Z;Hu N;Lin D;Ren H;Chen J;Su D;Li Z
非生物胁迫是抑制植物生长发育、影响作物产量的主要环境因子。GRAS转录因子在植物发育和非生物胁迫中起着重要而多样的作用。在这项研究中，SlGRAS 40，番茄（Solanum lycopersicum）GRAS家族的成员，功能特征。在野生型（WT）番茄中，SlGRAS 40通过用D-甘露醇、NaCl或H2 O2处理诱导的非生物胁迫而上调。过量表达SlGRAS 40（SlGRAS 40-OE）的转基因番茄植株比WT更耐干旱和盐胁迫。SlGRAS 40 - 0 E植物显示多效表型，使人联想到由改变的生长素和/或赤霉素信号传导引起的那些。WT和SlGRAS 40-OE转录组的比较显示，参与激素信号传导和应激反应的大量基因的表达被修饰。我们对SlGRAS 40蛋白的研究为另一种GRAS在番茄营养生长和生殖生长过程中如何抵抗非生物胁迫以及调节生长素和赤霉素信号转导提供了证据。
Abiotic stresses are major environmental factors that inhibit plant growth and development impacting crop productivity. GRAS transcription factors play critical and diverse roles in plant development and abiotic stress. In this study, SlGRAS40, a member of the tomato (Solanum lycopersicum) GRAS family, was functionally characterized. In wild-type (WT) tomato, SlGRAS40 was upregulated by abiotic stress induced by treatment with D-mannitol, NaCl, or H2O2. Transgenic tomato plants overexpressing SlGRAS40 (SlGRAS40-OE) were more tolerant of drought and salt stress than WT. SlGRAS40-OE plants displayed pleiotropic phenotypes reminiscent of those resulting from altered auxin and/or gibberellin signaling. A comparison of WT and SlGRAS40-OE transcriptomes showed that the expression of a large number of genes involved in hormone signaling and stress responses were modified. Our study of SlGRAS40 protein provides evidence of how another GRAS plays roles in resisting abiotic stress and regulating auxin and gibberellin signaling during vegetative and reproductive growth in tomato.
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影响因子：
64.8
作者：
Fu, XD;Harberd, NP
通讯作者：
Harberd, NP
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影响因子：
10.5
作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
4.3
作者：
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