umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Plant Circadian Rhythms
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).ORCID iD: 0000-0003-2038-4892
2016 (English)In: Encyclopedia of Life Sciences: Biological Sciences, Chichester: John Wiley & Sons, 2016, p. 1-10Chapter in book (Refereed)
Abstract [en]

Circadian clocks are found in most eukaryotic organisms. By allowing anticipation of daily and seasonal changes, they enable coordination of metabolism and lifecycle with the natural rhythms of the environment. Plant circadian rhythms are generated by a series of interlocking feedback loops of RNA (ribonucleic acid) and protein expression that respond to environmental cycles of light and temperature. They control essential processes in the plant's development, such as the transition to flowering or growth cessation, and thus influence yield, plant growth and biomass production. Many components of the clock are conserved across a wide variety of plant species and thus research in Arabidopsis translates into an understanding of the clock in agricultural crops or long‐living deciduous tree species such as hybrid aspen.

Key Concepts

  • Circadian clocks are found in both eukaryotes and bacteria.
  • Circadian clocks have a free‐running periodicity of about 24 h but are normally entrained to environmental cycles of light and temperature.
  • Temperature compensation is a key feature of the circadian clock and thus the free‐running period length varies relatively little across the range of ambient temperature.
  • The clock underlies many aspects of plant metabolism and physiology because it can detect and respond to both short‐term (the day:night cycle) and long‐term (the pattern of daylength variation across a year) changes in light and temperature.
  • The circadian clock of plants is made up of a series of interconnected transcription‐translation feedback loops (TTFLs) governing cycles of mRNA and protein expression.
  • Every plant cell contains its own clock. Clocks in different cells may be entrained independently of one another, although there appears to be a hierarchy of clocks within a plant dominated by the apex.
  • Plants with malfunctioning clocks suffer reductions in growth.
  • Many of the key components of the plant clock first described in the model species Arabidopsis thaliana are conserved across a wide range of species including trees such as hybrid aspen.
Place, publisher, year, edition, pages
Chichester: John Wiley & Sons, 2016. p. 1-10
National Category
Botany
Identifiers
URN: urn:nbn:se:umu:diva-151228OAI: oai:DiVA.org:umu-151228DiVA, id: diva2:1243086
Available from: 2018-08-30 Created: 2018-08-30 Last updated: 2018-08-30

Open Access in DiVA

No full text in DiVA

Other links

https://doi.org/10.1002/9780470015902.a0020113.pub2

Authority records BETA

Eriksson, Maria E.

Search in DiVA

By author/editor
Eriksson, Maria E.
By organisation
Department of Plant PhysiologyUmeå Plant Science Centre (UPSC)
Botany

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 85 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf