期刊
FUNCTIONAL PLANT BIOLOGY
卷 48, 期 4, 页码 361-370出版社
CSIRO PUBLISHING
DOI: 10.1071/FP20342
关键词
agricultural production; CKB3; LAC; lignin; microRNA; miR397; plant development; post-transcriptional; stress responses
资金
- Natural Science Foundation of Guangdong province [2020A1515010309]
- Guangdong Innovation Research Team Fund [2014ZT05S078]
MiR397, a type of small RNA, plays a crucial role in plant development by targeting genes related to lignin synthesis and other processes, regulating plant growth and response to external stimuli.
MicroRNAs (miRNAs) are noncoding, small RNAs of 20-24 nucleotides (nt) and function critically at the post-transcriptional level to regulate gene expression through cleaving mRNA targets or interfering with translation of the target mRNAs. They are broadly involved in many biological processes in plants. The miR397 family in plants contains several conserved members either in 21-nt or in 22-nt that mainly target the laccase (LAC) genes functioning in lignin synthesis and are involved in the development of plants under various conditions. Recent findings showed that miR397b in Arabidopsis could also target to Casein Kinase II Subunit Beta 3 (CKB3) and mediate circadian regulation and plant flowering. This review aims to summarise recent updates on miR397 and provides the available basis for understanding the functional mechanisms of miR397 in plant growth and development regulation and in response to external adverse stimulation.
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