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Li Lei's group from the School of Life Sciences discovered a new mechanism for copper homeostasis to regulate Arabidopsis leaf senescence

 Last Update: 2022-02-17
 Source: Internet
 Author: User

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On January 12, 2022, Li Lei's research group from the School of Life Sciences of Peking University published a research paper titled " The PCY-SAG14 phytocyanin module regulated by PIFs and miR408 promotes dark-induced leaf senescence in Arabidopsis " in the journal PNAS online .

Leaves are the main organs of plants for photosynthesis, providing energy and substances for plant growth

In this study, dark-induced leaf senescence in Arabidopsis was used as an experimental system.

Figure 1.

Through further molecular biology experiments, the SAG14-PCY module was found to be repressed by a highly conserved microRNA in terrestrial plants, miR408, which in turn was inhibited by phytochrome-interacting factor PIF3, a known key transcription factor in dark-induced leaf senescence /4/5 inhibition

Figure 2.

Researcher Li Lei from the School of Life Sciences of Peking University and Professor Deng Xingwang from the School of Modern Agriculture are the co-corresponding authors of the paper.

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