Plant cell responses to cold are all about timing

► Plant responses to cold stress determine crop productivity and latitudinal range for cultivation. ► Cold responses are regulated by the circadian clock and are highly integrated with circadian signalling pathways. ► Circadian clock components regulate cold responses on a daily and seasonal basis....

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Bibliographic Details
Published in:Current opinion in plant biology 2011-12, Vol.14 (6), p.731-737
Main Authors: Eriksson, Maria E, Webb, Alex AR
Format: Article
Language:English
Subjects:
Circadian Clocks
Cold Temperature
Models, Biological
Plant Cells - metabolism
Signal Transduction
Time Factors
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Summary:► Plant responses to cold stress determine crop productivity and latitudinal range for cultivation. ► Cold responses are regulated by the circadian clock and are highly integrated with circadian signalling pathways. ► Circadian clock components regulate cold responses on a daily and seasonal basis. ► CIRCADIAN CLOCK ASSOCIATED1 and LATE ELONGATED HYPOCOTYL are essential for cold responses. Changes in temperature present the cells of plants with particular challenges. Fortunately, many changes in temperature can be anticipated due to the rhythms of day/night and the seasons. To anticipate changes in the environment most organisms have a circadian clock to optimize daily and seasonal timing of gene expression, metabolism, physiology and cell biology. Circadian clocks comprised positive and negative feedback loops which ensure an internal period of approximately 24 hours. We describe the role of the circadian clock in modulating cellular cold signalling networks to prepare the cell for the onset of winter.
ISSN:1369-5266
1879-0356
1879-0356
DOI:10.1016/j.pbi.2011.08.005