Research advances on plant miPEP encoded by primary miRNA
miPEP(microRNA-encoded peptide)is a micropeptide encoded by the 5'region of the primary miRNA transcript(pri-miRNA).It specifically interacts with its coding sequence,termed the micropeptide open reading frame(miORF),to regulate the expression of target genes.The external application of miPEP has been demonstrated to enhance the expression of pri-miRNA,contributing to increased accumulation of the corresponding miRNA.This process subsequently inhibits the expression of miRNA target genes,leading to modifications in plant phenotypic traits.miPEP plays a significant role in plant growth,develop-ment and resistance to abiotic stress.It has the potential to serve as an environmentally friendly and po-tent plant growth regulator that improves agronomic traits without relying on genetic approaches.In our review,the generation of miPEP,as well as the absorption and transport of exogenous miPEP were re-viewed.Additionally,the functions and mechanisms of miPEP identified in plants were summarized.
miPEPgenerating processabsorption and transportfunctionmechanism of action
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