CmWRKY1 Enhances the Dehydration Tolerance of Chrysanthemum through the Regulation of ABA-Associated Genes
作者： Qingqing Fan , Aiping Song , Jiafu Jiang , Ting Zhang , Hainan Sun
DOI: 10.1371/JOURNAL.PONE.0150572
关键词:
摘要: WRKY transcription factors serve as antagonistic or synergistic regulators in a variety of abiotic stress responses plants. Here, we show that CmWRKY1, member the group IIb family isolated from Chrysanthemum morifolium, exhibits no transcriptional activation yeast cells. The subcellular localization examination showed CmWRKY1 localizes to nucleus vivo. Furthermore, CmWRKY1-overexpressing transgenic lines exhibit enhanced dehydration tolerance response polyethylene glycol (PEG) treatment compared with wild-type We further confirmed plants suppressed expression levels genes negatively regulated by ABA, such PP2C, ABI1 and ABI2, activated positively PYL2, SnRK2.2, ABF4, MYB2, RAB18, DREB1A. Taken together, our results indicate plays an important role drought chrysanthemum through ABA-mediated pathway.
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