Age-triggered and dark-induced leaf senescence require the bHLH transcription factors PIF3, 4, and 5.
Age-triggered and dark-induced leaf senescence require the bHLH transcription factors PIF3, 4, and 5.
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年龄触发和黑暗诱导的叶子衰老需要 bHLH 转录因子 PIF3、4 和 5
DOI:
10.1093/mp/ssu109
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发表时间:
2014-12
期刊:
影响因子:
27.5
通讯作者:
Kuai B
中科院分区:
文献类型:
--
作者:
Song Y;Yang C;Gao S;Zhang W;Li L;Kuai B
SUMMARY Numerous lines of evidence have suggested an involvement of phytochromes in the regulation of leaf senescence, but the related signaling pathway and physiological mechanisms are poorly understood. In this study, we demonstrated that PIF3, 4, and 5, the master regulators of light signaling, modulate age-triggered and dark-induced senescence and particularly PIF4 positively regulates leaf senescence by directly targeting genes related to chlorophyll degradation and chloroplast activity maintaining as well as ethylene biosynthesis.
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