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Anna Maria Jönsson

Prefekt

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Photoperiod- and temperature-mediated control of phenology in trees – a molecular perspective

Författare

  • Rajesh Kumar Singh
  • Tetiana Svystun
  • Badr AlDahmash
  • Anna Maria Jönsson
  • Rishikesh P. Bhalerao

Summary, in English

(Table presented.). Summary: Trees growing in boreal and temperate regions synchronize their growth with seasonal climatic changes in adaptive responses that are essential for their survival. These trees cease growth before the winter and establish a dormant state during which growth cessation is maintained by repression of responses to growth-promotive signals. Reactivation of growth in the spring follows the release from dormancy promoted by prolonged exposure to low temperature during the winter. The timing of the key events and regulation of the molecular programs associated with the key stages of the annual growth cycle are controlled by two main environmental cues: photoperiod and temperature. Recently, key components mediating photoperiodic control of growth cessation and bud set have been identified, and striking similarities have been observed in signaling pathways controlling growth cessation in trees and floral transition in Arabidopsis. Although less well understood, the regulation of bud dormancy and bud burst may involve cell–cell communication and chromatin remodeling. Here, we discuss current knowledge of the molecular-level regulation of the annual growth cycle of woody trees in temperate and boreal regions, and identify key questions that need to be addressed in the future.

Avdelning/ar

  • Institutionen för naturgeografi och ekosystemvetenskap
  • BECC: Biodiversity and Ecosystem services in a Changing Climate

Publiceringsår

2017-01-01

Språk

Engelska

Sidor

511-524

Publikation/Tidskrift/Serie

New Phytologist

Volym

213

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

Wiley-Blackwell

Ämne

  • Botany

Nyckelord

  • correlation analysis
  • evolution
  • phloem
  • phylogeny
  • sieve element
  • sieve plate
  • sieve pore
  • trees

Aktiv

Published

ISBN/ISSN/Övrigt

  • ISSN: 0028-646X