articlePLoS BiologySep 19, 2008GOLD OA

Control of Jasmonate Biosynthesis and Senescence by miR319 Targets

Instituto de Biología Molecular y Celular de Rosario · Max Planck Institute for Developmental Biology · +5 more institutions

PubMed
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Abstract

Considerable progress has been made in identifying the targets of plant microRNAs, many of which regulate the stability or translation of mRNAs that encode transcription factors involved in development. In most cases, it is unknown, however, which immediate transcriptional targets mediate downstream effects of the microRNA-regulated transcription factors. We identified a new process controlled by the miR319-regulated clade of TCP (TEOSINTE BRANCHED/CYCLOIDEA/PCF) transcription factor genes. In contrast to other miRNA targets, several of which modulate hormone responses, TCPs control biosynthesis of the hormone jasmonic acid. Furthermore, we demonstrate a previously unrecognized effect of TCPs on leaf…

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