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Stress responsive gene CIPK14 is involved in phytochrome A-mediated far-red light inhibition of greening in Arabidopsis 被引量:5
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作者 QIN YuZhi2,3, GUO Ming1, LI Xu1, XIONG XingYao2,3, HE ChangZheng2,3, NIE XianZhou4 & LIU XuanMing1 1College of Life Science and Biotechnology, hunan university, changsha 410082, china 2college of horticulture and landscape, hunan agricultural university, changsha 410128, china +1 位作者 3hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, hunan agricultural university, changsha 410128, china 4Potato Research Centre, Agriculture and Agri-Food Canada, Fredericton, New Brunswick E3B 4Z7, Canada 《Science China(Life Sciences)》 SCIE CAS 2010年第11期1307-1314,共8页
In this study, we show that CIPK14,a stress responsive CBL-interacting protein kinase gene,is involved in phytochrome A-mediated far-red light inhibition of greening in Arabidopsis seedlings. The CIPK14-impairment mut... In this study, we show that CIPK14,a stress responsive CBL-interacting protein kinase gene,is involved in phytochrome A-mediated far-red light inhibition of greening in Arabidopsis seedlings. The CIPK14-impairment mutant cipk14 grown in continuous far-red (FR) light did not show greening when exposed to white light illumination for 15 h. By contrast, the FR-grown phytochrome A null mutant phyA greened within 0.5 h of exposure to white light. Although greening of Col-4 (wild-type) was not completely abolished by FR, it exhibited a significantly decreased greening capacity compared with that of phyA. Further analyses demonstrated that the expression of protochlorophyllide reductase (POR) genes was correlated with the greening ability of the genotypes. In addition, CIPK14 appeared to be regulated by both the circadian clock and PhyA. Taken together, these results suggest that CIPK14 plays a role in PhyA-mediated FR inhibition of seedling greening, and that a Ca-related kinase may be involved in a previously undefined branch point in the phytochrome A signaling pathway. 展开更多
关键词 CHLOROPHYLL CIPK14 far-red light INHIBITION of GREENING POR PHYTOCHROME A
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