Light Quality Modulates Plant Cold Response and Freezing Tolerance.

ABSTRACT: The cold acclimation process is regulated by many factors like ambient temperature, day length, light intensity, or hormonal status. Experiments with plants grown under different light quality conditions indicate that the plant response to cold is also a light-quality-dependent process. Here, the role of light quality in the cold response was studied in 1-month-old Arabidopsis thaliana (Col-0) plants exposed for 1 week to 4°C at short-day conditions under white (100 and 20 μmol m^-2s^-1), blue, or red (20 μmol m^-2s^-1) light conditions. An upregulated expression of CBF1, inhibition of photosynthesis, and an increase in membrane damage showed that blue light enhanced the effect of low temperature. Interestingly, cold-treated plants unde

SUBMITTER: Kameniarova M 

PROVIDER: S-EPMC9221075 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature