Control of jasmonate biosynthesis and senescence by miR319 targets.

Détails

Ressource 1Télécharger: BIB_954CEBA4B1C7.P001.pdf (3994.09 [Ko])
Etat: Serval
Version: de l'auteur
ID Serval
serval:BIB_954CEBA4B1C7
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Control of jasmonate biosynthesis and senescence by miR319 targets.
Périodique
PLoS Biology
Auteur(s)
Schommer C., Palatnik J.F., Aggarwal P., Chételat A., Cubas P., Farmer E.E., Nath U., Weigel D.
ISSN
1545-7885
Statut éditorial
Publié
Date de publication
2008
Peer-reviewed
Oui
Volume
6
Numéro
9
Pages
e230
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Résumé
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 senescence, a process in which jasmonic acid has been proposed to be a critical regulator. We propose that miR319-controlled TCP transcription factors coordinate two sequential processes in leaf development: leaf growth, which they negatively regulate, and leaf senescence, which they positively regulate.
Mots-clé
Arabidopsis, Arabidopsis Proteins, Base Sequence, Cell Aging, Cyclopentanes, Gene Expression Profiling, Gene Expression Regulation, Plant, MicroRNAs, Oxylipins, Plant Leaves, RNA, Plant, Sequence Alignment, Transcription Factors, Transcription, Genetic
Pubmed
Web of science
Open Access
Oui
Création de la notice
24/02/2009 12:41
Dernière modification de la notice
08/05/2019 22:16
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