The melatonin receptor cand2 is involved in the regulation of photosynthesis and chloroplast gene expression in arabidopsis thaliana under photooxidative stress

16Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.

Abstract

Melatonin is a well-known bioactive molecule able to mitigate photooxidative damage caused by excess light. Here we have shown that mutant Arabidopsis lines with disrupted genes for melatonin putative receptor CAND2/PMTR1 and GPA1 encoding the α-subunit of heterotrimeric G-protein were partially insensitive to melatonin treatment under high light stress. They exhibited a higher degree of photodamage due to a significantly decreased photosynthetic activity and diminished expression of chloroplast and nuclear-encoded genes and the corresponding proteins. A possible mechanism for melatonin-dependent regulation of chloroplast genes is associated with a change in the activity of the genes for chloroplast RNA polymerases. We conclude that under high light stress, melatonin may act as a hormone-like signaling molecule via the CAND2/PMTR1-mediated signaling pathway.

Cite

CITATION STYLE

APA

Bychkov, I. A., Kudryakova, N. V., Pojidaeva, E. S., & Kusnetsov, V. V. (2021). The melatonin receptor cand2 is involved in the regulation of photosynthesis and chloroplast gene expression in arabidopsis thaliana under photooxidative stress. Photosynthetica, 59(4), 683–692. https://doi.org/10.32615/ps.2021.061

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free