| Literature DB >> 29196259 |
Kui Huang1, Lu Peng1, Yingying Liu1, Rundong Yao1, Zhibin Liu1, Xufeng Li1, Yi Yang1, Jianmei Wang2.
Abstract
The calcium-dependent protein kinases (CDPKs) play vital roles in plant response to various environmental stimuli. Here, we investigated the function of Arabidopsis AtCPK1 in response to salt and drought stress. The loss-of-function cpk1 mutant displayed hypersensitive to salt and drought stress, whereas overexpressing AtCPK1 in Arabidopsis plants significantly enhanced the resistance to salt or drought stress. The reduced or elevated tolerance of cpk1 mutant and AtCPK1-overexpressing lines was confirmed by the changes of proline, malondialdehyde (MDA) and H2O2. Real-time PCR analysis revealed that the expression of several stress-inducible genes (RD29A, COR15A, ZAT10, APX2) down-regulated in cpk1 mutant and up-regulated in AtCPK1-overexpressing plants. These results are likely to indicate that AtCPK1 positively regulates salt and drought stress in Arabidopsis.Entities:
Keywords: Arabidopsis; AtCPK1; CDPKs; Drought stress; Salt stress
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Year: 2017 PMID： 29196259 DOI： 10.1016/j.bbrc.2017.11.175
Source DB: PubMed Journal: Biochem Biophys Res Commun ISSN： 0006-291X Impact factor: 3.575