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Many famous philosophers emerged during the Spring and Autumn Period and Warring States Period in China.
Similar to animals, plants have undergone many developmental transitions throughout their lives
On November 9, 2021, the international academic journal PNAS published an online study titled "Cell division in the shoot apical meristem is a trigger for miR156 decline and vegetative phase transition in Arabidopsis " from the Wang Jiawei research group of the Center for Excellence in Molecular Plant Science, Chinese Academy of Sciences .
This study constructed the Arabidopsis MIR156C promoter fluorescence reporter system (there are 8 MIR156 coding genes in Arabidopsis , and only MIR156C is represented here ), and detailed analysis of the time and space of the MIR156C promoter in embryos, stem tips and roots Expression mode
The study further used the GFP-based miR156 sensor (miR156 sensor) for genetic mutagenesis screening and found that the histone deacetylase gene HDA9 is involved in the expression regulation of MIR156C
Cheng Yingjuan, a postdoctoral fellow at the Center for Excellence in Molecular Plant Science, Chinese Academy of Sciences, is the first author of the paper, and researcher Wang Jiawei is the corresponding author.
Link to the paper: https:// align="center">
[video: Wang Jiawei Achievement]
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Real-time fluorescence imaging showed the expression of pMIR156C:GFP-N7 reporter gene during the initiation of lateral roots in Arabidopsis
Figure A: HDA9 is involved in the regulation of the decline of MIR156C expression with cell division
Figure B: H3K27ac and H3K27me3 histone modifications at the MIR156C locus in Arabidopsis roots
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