AtGRP7 is involved in the regulation of abscisic acid and stress responses in Arabidopsis.
AtGRP7 is involved in the regulation of abscisic acid and stress responses in Arabidopsis.
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DOI：
10.2478/s11658-006-0042-2
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发表时间：
2006
影响因子：
8.3
通讯作者：
Xu G
中科院分区：
文献类型：
--
作者：
Cao S;Jiang L;Song S;Jing R;Xu G
拟南芥AtGRP7基因编码一种富含甘氨酸的RNA结合蛋白，已被证明参与调节昼夜节律的负反馈环。然而，对AtGRP7在调节脱落酸(ABA)和应激反应中的作用知之甚少。在这里，我们证明了AtGRP7在这两个过程中都发挥了作用。ABA、高盐和甘露醇对AtGRP7有抑制作用。在种子萌发和根生长试验中，通过T-DNA插入中断AtGRP7导致了对ABA的超敏反应。Atgrp7-1突变体对渗透胁迫条件也高度敏感，如高盐和高浓度甘露醇。此外，与野生型植株相比，atgrp7-1突变植株积累了显著高于野生型植株的ABA和胁迫诱导基因RD29A和Rab18的转录水平。综上所述，这些结果表明AtGRP7参与了ABA和胁迫反应的调节。
The Arabidopsis AtGRP7 gene, encoding a glycine-rich RNA-binding protein, has been shown to be involved in the regulation of a circadian-regulated negative feedback loop. However, little is known about the role of AtGRP7 in mediating abscisic acid (ABA) and stress responses. Here, we show that AtGRP7 plays a role in both. AtGRP7 was repressed by ABA, high salt and mannitol. Disruption of AtGRP7 by T-DNA insertion led to hypersensitive responses to ABA in both seed germination and root growth assays. The atgrp7-1 mutant was also hypersensitive to osmotic stress conditions, such as high salt and high concentrations of mannitol. In addition, the atgrp7-1 mutant plants accumulated significantly higher transcript levels of two ABA-and stress-inducible genes, RD29A and RAB18, compared with the wild-type plants. Taken together, these results suggest that AtGRP7 is involved in the regulation of ABA and stress responses.
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富含甘氨酸的RNA结合蛋白，介导了对哺乳动物细胞生长的冷诱导抑制。
影响因子：
7.8
作者：
Nishiyama, H;Itoh, K;Kaneko, Y;Kishishita, M;Yoshida, O;Fujita, J
通讯作者：
Fujita, J
影响因子：
7.4
作者：
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通讯作者：
Luan, S
影响因子：
56.9
作者：
Alonso, JM;Stepanova, AN;Ecker, JR
通讯作者：
Ecker, JR
影响因子：
64.8
作者：
Razem, FA;El-Kereamy, A;Hill, RD
通讯作者：
Hill, RD
影响因子：
7.5
作者：
GIRAUDAT, J
通讯作者：
GIRAUDAT, J