共查询到20条相似文献,搜索用时 46 毫秒
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Signal transduction during cold, salt, and drought stresses in plants 总被引:14,自引:0,他引:14
Huang GT Ma SL Bai LP Zhang L Ma H Jia P Liu J Zhong M Guo ZF 《Molecular biology reports》2012,39(2):969-987
Abiotic stresses, especially cold, salinity and drought, are the primary causes of crop loss worldwide. Plant adaptation to
environmental stresses is dependent upon the activation of cascades of molecular networks involved in stress perception, signal
transduction, and the expression of specific stress-related genes and metabolites. Plants have stress-specific adaptive responses
as well as responses which protect the plants from more than one environmental stress. There are multiple stress perception
and signaling pathways, some of which are specific, but others may cross-talk at various steps. In this review article, we
first expound the general stress signal transduction pathways, and then highlight various aspects of biotic stresses signal
transduction networks. On the genetic analysis, many cold induced pathways are activated to protect plants from deleterious
effects of cold stress, but till date, most studied pathway is ICE-CBF-COR signaling pathway. The Salt-Overly-Sensitive (SOS)
pathway, identified through isolation and study of the sos1, sos2, and sos3 mutants, is essential for maintaining favorable ion ratios in the cytoplasm and for tolerance of salt stress. Both ABA-dependent
and -independent signaling pathways appear to be involved in osmotic stress tolerance. ROS play a dual role in the response
of plants to abiotic stresses functioning as toxic by-products of stress metabolism, as well as important signal transduction
molecules and the ROS signaling networks can control growth, development, and stress response. Finally, we talk about the
common regulatory system and cross-talk among biotic stresses, with particular emphasis on the MAPK cascades and the cross-talk
between ABA signaling and biotic signaling. 相似文献
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Expression of the MYB transcription factor gene BplMYB46 affects abiotic stress tolerance and secondary cell wall deposition in Betula platyphylla 总被引:1,自引:0,他引:1
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Huiyan Guo Yucheng Wang Liuqiang Wang Ping Hu Yanmin Wang Yuanyuan Jia Chunrui Zhang Yu Zhang Yiming Zhang Chao Wang Chuanping Yang 《Plant biotechnology journal》2017,15(1):107-121
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Multifaceted role of cycling DOF factor 3 (CDF3) in the regulation of flowering time and abiotic stress responses in Arabidopsis 总被引:1,自引:0,他引:1
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Sergio G. Nebauer Jose Dominguez‐Figueroa Begoña Renau‐Morata Stephan Pollmann Antonio Granell Rosa‐Victoria Molina Jesús Vicente‐Carbajosa Joaquín Medina 《Plant, cell & environment》2017,40(5):748-764
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GmWRKY27 interacts with GmMYB174 to reduce expression of GmNAC29 for stress tolerance in soybean plants 总被引:1,自引:0,他引:1
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Fang Wang Hao‐Wei Chen Qing‐Tian Li Wei Wei Wei Li Wan‐Ke Zhang Biao Ma Ying‐Dong Bi Yong‐Cai Lai Xin‐Lei Liu Wei‐Qun Man Jin‐Song Zhang Shou‐Yi Chen 《The Plant journal : for cell and molecular biology》2015,83(2):224-236
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Wei Hu Jialu Feng Fan Zhang Lihong Chen Chao Huang Qingchen Luo Yanzhen He Guangxiao Yang Guangyuan He 《Physiologia plantarum》2013,149(3):367-377
Calcineurin B‐like protein‐interacting protein kinases (CIPKs) are components of Ca2+ signaling in responses to abiotic stresses. In this work, the full‐length cDNA of a novel CIPK gene (TaCIPK14) was isolated from wheat and was found to have significant sequence similarity to OsCIPK14/15. Subcellular localization assay revealed the presence of TaCIPK14 throughout the cell. qRT‐PCR analysis showed that TaCIPK14 was upregulated under cold conditions or when treated with salt, PEG or exogenous stresses related signaling molecules including ABA, ethylene and H2O2. Transgenic tobaccos overexpressing TaCIPK14 exhibited higher contents of chlorophyll and sugar, higher catalase activity, while decreased amounts of H2O2 and malondialdehyde, and lesser ion leakage under cold and salt stresses. In addition, overexpression also increased seed germination rate, root elongation and decreased Na+ content in the transgenic lines under salt stress. Higher expression of stress‐related genes was observed in lines overexpressing TaCIPK14 compared to controls under stress conditions. In summary, these results suggested that TaCIPK14 is an abiotic stress‐responsive gene in plants. 相似文献
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The pepper late embryogenesis abundant protein CaLEA1 acts in regulating abscisic acid signaling,drought and salt stress response
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As sessile organisms, plants are constantly challenged by environmental stresses, including drought and high salinity. Among the various abiotic stresses, osmotic stress is one of the most important factors for growth and significantly reduces crop productivity in agriculture. Here, we report a function of the CaLEA1 protein in the defense responses of plants to osmotic stress. Our analyses showed that the CaLEA1 gene was strongly induced in pepper leaves exposed to drought and increased salinity. Furthermore, we determined that the CaLEA1 protein has a late embryogenesis abundant (LEA)_3 homolog domain highly conserved among other known group 5 LEA proteins and is localized in the processing body. We generated CaLEA1‐silenced peppers and CaLEA1‐overexpressing (OX) transgenic Arabidopsis plants to evaluate their responses to dehydration and high salinity. Virus‐induced gene silencing of CaLEA1 in pepper plants conferred enhanced sensitivity to drought and salt stresses, which was accompanied by high levels of lipid peroxidation in dehydrated and NaCl‐treated leaves. CaLEA1‐OX plants exhibited enhanced sensitivity to abscisic acid (ABA) during seed germination and in the seedling stage; furthermore, these plants were more tolerant to drought and salt stress than the wild‐type plants because of enhanced stomatal closure and increased expression of stress‐responsive genes. Collectively, our data suggest that CaLEA1 positively regulates drought and salinity tolerance through ABA‐mediated cell signaling. 相似文献