PIF transcription factors link a neighbor threat cue to accelerated reproduction in Arabidopsis.

Détails

ID Serval
serval:BIB_995912D6599D
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
PIF transcription factors link a neighbor threat cue to accelerated reproduction in Arabidopsis.
Périodique
Nature communications
Auteur(s)
Galvāo V.C., Fiorucci A.S., Trevisan M., Franco-Zorilla J.M., Goyal A., Schmid-Siegert E., Solano R., Fankhauser C.
ISSN
2041-1723 (Electronic)
ISSN-L
2041-1723
Statut éditorial
Publié
Date de publication
05/09/2019
Peer-reviewed
Oui
Volume
10
Numéro
1
Pages
4005
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Résumé
Changes in light quality indicative of competition for this essential resource influence plant growth and developmental transitions; however, little is known about neighbor proximity-induced acceleration of reproduction. Phytochrome B (phyB) senses light cues from plant competitors, ultimately leading to the expression of the floral inducers FLOWERING LOCUS T (FT) and TWIN SISTER of FT (TSF). Here we show that PHYTOCHROME INTERACTING FACTORs 4, 5 and 7 (PIF4, PIF5 and PIF7) mediate neighbor proximity-induced flowering, with PIF7 playing a prominent role. These transcriptional regulators act directly downstream of phyB to promote expression of FT and TSF. Neighbor proximity enhances PIF accumulation towards the end of the day, coinciding with enhanced floral inducer expression. We present evidence supporting direct PIF-regulated TSF expression. The relevance of our findings is illustrated by the prior identification of FT, TSF and PIF4 as loci underlying flowering time regulation in natural conditions.
Pubmed
Web of science
Open Access
Oui
Création de la notice
17/09/2019 17:14
Dernière modification de la notice
25/09/2019 5:11
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