Journal
NEW PHYTOLOGIST
Volume 212, Issue 3, Pages 563-570Publisher
WILEY
DOI: 10.1111/nph.14217
Keywords
carbon starvation; dark; phytochrome; PHYTOCHROME-INTERACTING FACTOR (PIF); senescence; shade; signalling
Categories
Funding
- VetenskapsRadet [621-2014-4688]
- KEMPE Foundation
Ask authors/readers for more resources
Leaf senescence - the coordinated, active process leading to the organized dismantling of cellular components to remobilize resources - is a fundamental aspect of plant life. Its tight regulation is essential for plant fitness and has crucial implications for the optimization of plant productivity and storage properties. Various investigations have shown light deprivation and light perception via phytochromes as key elements modulating senescence. However, the signalling pathways linking light deprivation and actual senescence processes have long remained obscure. Recent analyses have demonstrated that PHYTOCHROME-INTERACTING FACTORS (PIFs) are major transcription factors orchestrating dark-induced senescence (DIS) by targeting chloroplast maintenance, chlorophyll metabolism, hormone signalling and production, and the expression of senescence master regulators, uncovering potential molecular links to the energy deprivation signalling pathway. PIF-dependent feed-forward regulatory modules might be of critical importance for the highly complex and initially light-reversible DIS induction.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available