Plant miR397 and its functions

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 target mRNAs. They broadly involved in many biological processes plants. The miR397 family plants contains several conserved members either 21-nt 22-nt that mainly laccase (LAC) genes functioning lignin synthesis development under various conditions. Recent findings showed miR397b Arabidopsis could also Casein Kinase II Subunit Beta 3 (CKB3) mediate circadian regulation plant flowering. This review aims summarise recent updates on provides available basis for understanding functional mechanisms growth response external adverse stimulation.