Home About Browse Search
Svenska


Phytochrome B and PHYTOCHROME INTERACTING FACTOR8 modulate seasonal growth in trees

Ding, Jihua and André, Domenique and Zhang, Bo and Li, Yue and Nilsson, Ove (2021). Phytochrome B and PHYTOCHROME INTERACTING FACTOR8 modulate seasonal growth in trees. New Phytologist. 232 , 2339-2352
[Research article]

[img] PDF
1MB

Abstract

The seasonally synchronized annual growth cycle that is regulated mainly by photoperiod and temperature cues is a crucial adaptive strategy for perennial plants in boreal and temperate ecosystems.Phytochrome B (phyB), as a light and thermal sensor, has been extensively studied in Arabidopsis. However, the specific mechanisms for how the phytochrome photoreceptors control the phenology in tree species remain poorly understood.We characterized the functions of PHYB genes and their downstream PHYTOCHROME INTERACTING FACTOR (PIF) targets in the regulation of shade avoidance and seasonal growth in hybrid aspen trees. We show that while phyB1 and phyB2, as phyB in other plants, act as suppressors of shoot elongation during vegetative growth, they act as promoters of tree seasonal growth. Furthermore, while the Populus homologs of both PIF4 and PIF8 are involved in the shade avoidance syndrome (SAS), only PIF8 plays a major role as a suppressor of seasonal growth.Our data suggest that the PHYB-PIF8 regulon controls seasonal growth through the regulation of FT and CENL1 expression while a genome-wide transcriptome analysis suggests how, in Populus trees, phyB coordinately regulates SAS responses and seasonal growth cessation.

Authors/Creators:Ding, Jihua and André, Domenique and Zhang, Bo and Li, Yue and Nilsson, Ove
Title:Phytochrome B and PHYTOCHROME INTERACTING FACTOR8 modulate seasonal growth in trees
Series Name/Journal:New Phytologist
Year of publishing :2021
Volume:232
Page range:2339-2352
Number of Pages:14
Publisher:WILEY
ISSN:0028-646X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:bud break, growth cessation, PHYTOCHROME B, PHYTOCHROME INTERACTING FACTOR8, Populus, shade avoidance
URN:NBN:urn:nbn:se:slu:epsilon-p-111811
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111811
Additional ID:
Type of IDID
DOI10.1111/nph.17350
Web of Science (WoS)000645992300001
ID Code:26231
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Genetics and Plant Physiology
Deposited By: SLUpub Connector
Deposited On:29 Nov 2021 11:25
Metadata Last Modified:29 Nov 2021 11:31

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits