Ectopic expression of an Ammopiptanthus mongolicus H+-pyrophosphatase gene enhances drought and salt tolerance in Arabidopsis

2012 ◽  
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pp. 359-369 ◽  
Author(s):  
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P. Hu ◽  
B. K. Kuai
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Vol 39 (4) ◽  
pp. 4627-4633 ◽  
Author(s):  
Yiyue Zhang ◽  
Yin Li ◽  
Jianbin Lai ◽  
Huawei Zhang ◽  
Yuanyuan Liu ◽  
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pp. 167-177 ◽  
Author(s):  
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Xiaoyun Qiu ◽  
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Sundaram Kuppu ◽  
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PLoS ONE ◽  
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Chao Feng ◽  
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2021 ◽  
Author(s):  
Fang Wang ◽  
Peng Fang ◽  
Huiping Yan ◽  
Xiangzhuo Ji ◽  
Yunling Peng

Abstract The homeodomain leucine zipper (HD-Zip) IV transcription factor is indispensable in the response of plants to abiotic stress. Systematic studies have been carried out in Arabidopsis, rice and other species from which a series of stress resistance-related genes have been isolated. However, the function of the HD-Zip-IV protein in maize is not clear. In this study, we cloned the HD-Zip-IV gene ZmHDZIV13 and identified its function in the stress response. Our phylogenetic analysis showed that ZmHDZIV13 and AtHDG11 had high homology and might have similar functions. The heterologous overexpression of ZmHDZIV13 in Arabidopsis resulted in sensitivity to abscisic acid (ABA), salt tolerance during germination and drought tolerance in seedlings. Under drought stress, the transgenic Arabidopsis showed stronger drought resistance than the wild-type showed (control). The malondialdehyde content of ZmHDZIV13 transgenic plants was lower than that of the control, and the relative water content and proline content were significantly higher than those of the control. After the drought was relieved, the expression of P5CS1, RD22, RD29B, RD29A, NCED3 and ERD1 were upregulated in transgenic Arabidopsis. Also, modified tobacco plants (35S::ZmHDZIV13) exhibited proper stomatal changes in response to drought conditions. These results show that ZmHDZIV13, as a stress-responsive transcription factor, plays a role in the positive regulation of abiotic stress tolerance and can regulate an ABA-dependent signaling pathway to regulate drought response in plants.


2021 ◽  
Vol 1 (0) ◽  
pp. 1-10
Author(s):  
Lin Liu ◽  
◽  
Zihan Cheng ◽  
Wenjing Yao ◽  
Xueyi Wang ◽  
...  

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