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ABO3, a WRKY transcription factor,mediates plant responses to abscisic acid and drought tolerance in Arabidopsis 总被引:1,自引:0,他引:1
Xiaozhi Ren Zhizhong Chen Yue Liu Hairong Zhang Min Zhang Qian Liu Xuhui Hong Jian‐Kang Zhu Zhizhong Gong 《The Plant journal : for cell and molecular biology》2010,63(3):417-429
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Wang Y Liu C Li K Sun F Hu H Li X Zhao Y Han C Zhang W Duan Y Liu M Li X 《Plant molecular biology》2007,64(6):633-644
The nuclear protein ETHYLENE INSENSITIVE2 (EIN2) is a central component of the ethylene signal transduction pathway in plants,
and plays an important role in mediating cross-links between several hormone response pathways, including abscisic acid (ABA).
ABA mediates stress responses in plants, but there is no report on the role of EIN2 on plant response to salt and osmotic stresses. Here, we show that EIN2 gene regulates plant response to osmotic and salt stress through an ABA-dependent pathway in Arabidopsis. The expression
of the EIN2 gene is down-regulated by salt and osmotic stress. An Arabidopsis EIN2 null mutant was supersensitive to both salt and osmotic stress conditions. Disruption of EIN2 specifically altered the expression pattern of stress marker gene RD29B in response to the stresses, but not the stress- or ABA-responsive genes RD29A and RD22, suggesting EIN2 modulates plant stress responses through the RD29B branch of the ABA response. Furthermore, disruption of EIN2 caused substantial increase in ABA. Lastly, our data showed that mutations of other key genes in ethylene pathway also had
altered sensitivity to abiotic stresses, indicating that the intact ethylene may involve in the stress response. Taken together,
the results identified EIN2 as a cross-link node in ethylene, ABA and stress signaling pathways, and EIN2 is necessary to induce developmental arrest during seed germination, and seedling establishment, as well as subsequent vegetative
growth, thereby allowing the survival and growth of plants under the adverse environmental conditions.
Youning Wang and Chuang Liu contributed equally to this work. 相似文献
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Four Arabidopsis AREB/ABF transcription factors function predominantly in gene expression downstream of SnRK2 kinases in abscisic acid signalling in response to osmotic stress 下载免费PDF全文
TAKUYA YOSHIDA YASUNARI FUJITA KYONOSHIN MARUYAMA JUNRO MOGAMI DAISUKE TODAKA KAZUO SHINOZAKI KAZUKO YAMAGUCHI‐SHINOZAKI 《Plant, cell & environment》2015,38(1):35-49
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Transcription factor WRKY46 modulates the development of Arabidopsis lateral roots in osmotic/salt stress conditions via regulation of ABA signaling and auxin homeostasis 下载免费PDF全文
Chun Xiao Li Gui Xin Li Yun Rong Wu Shao Jian Zheng 《The Plant journal : for cell and molecular biology》2015,84(1):56-69
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