Light Quality and Intensity Modulate Cold Acclimation in Arabidopsis
نویسندگان
چکیده
منابع مشابه
Integration of low temperature and light signaling during cold acclimation response in Arabidopsis.
Certain plants increase their freezing tolerance in response to low nonfreezing temperatures, an adaptive process named cold acclimation. Light has been shown to be required for full cold acclimation, although how light and cold signals integrate and cross-talk to enhance freezing tolerance still remains poorly understood. Here, we show that HY5 levels are regulated by low temperature transcrip...
متن کاملTime-dependent deacclimation after cold acclimation in Arabidopsis thaliana accessions
During low temperature exposure, Arabidopsis thaliana and many other plants from temperate climates increase in freezing tolerance in a process termed cold acclimation. However, the correct timing and rate of deacclimation, resulting in loss of freezing tolerance and initiation of growth is equally important for plant fitness and survival. While the molecular basis of cold acclimation has been ...
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A test was carried out to see if sucrose could regulate cold-acclimation-associated gene expression in Arabidopsis. In plants and excised leaves, sucrose caused an increase in GUS activity, as a reporter for the activity of the cold-responsive COR78 promoter. This increase was transient at 21 degrees C but lasted for at least 4 d at 4 degrees C in continuous darkness. However, at 4 degrees C wi...
متن کاملLight stimulation of cold acclimation: production of a translocatable promoter.
The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness. Movement of the promoters from an illuminated donor portion to a darkened receptor portion was demonstrated. The majority of transport was acropetal through the phloem and to a much lesser degree basipetal through the xylem. In the earl...
متن کاملTemperature regulation and cold acclimation.
The questions concerned with temperature regulation raise sufficient controversy in themselves so that little but valor or foolishness can be attributed to one who chooses to discuss this subject in the furor of a second controversy acclimatization. However, I should like to introduce the papers of this session with a summary and a synthesis of the data with respect to control of metabolism and...
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ژورنال
عنوان ژورنال: International Journal of Molecular Sciences
سال: 2021
ISSN: 1422-0067
DOI: 10.3390/ijms22052736