期刊
PLANT AND CELL PHYSIOLOGY
卷 51, 期 5, 页码 842-847出版社
OXFORD UNIV PRESS
DOI: 10.1093/pcp/pcq041
关键词
ABA; Drought stress; Microarray; Protein phosphorylation; SnRK2
资金
- RIKEN Plant Science Center
- RIKEN
- Ministry of Education, Culture, Sports, Science and Technology (MEXT)
The subclass III group of SNF1-related protein kinase 2 (SnRK2) members is known to play an important role in ABA and osmotic stress signaling in Arabidopsis; however, the roles of other subclasses remain elusive. Here, we established a double mutant of SRK2C/SnR2.8 and SRK2F/SnRK2.7 to investigate the functions of subclass II SnRK2s. Microarray analysis suggested that subclass II SnRK2s regulate some drought-responsive genes involving ABA-responsive element binding transcription factors (AREB/ABF) and their targets, and quantitative reverse transcription PCR confirmed that those genes were down-regulated significantly in srk2cf. This study indicates that subclass II SnRK2s also play important roles in drought stress signaling in Arabidopsis.
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