MicroRNAs (miRNAs) are a class of small non-coding RNAs (small RNAs) that are 20-24nt in length and predominantly repress gene expression at post-transcriptional levels. They regulate many biological processes including development, metabolism and physiology. Numerous studies have revealed that the steady-state levels of miRNA are under sophisticated control to ensure their proper function. In this review, we summarize recent advances on regulation of miRNA processing and stability in plants.
Keywords: Arabidopsis; miRNA abundance; miRNA stability; post-transcriptional regulation; pri-miRNA processing.