The melatonin receptor CAND2 is involved in the regulation of photosynthesis and chloroplast gene expression in Arabidopsis thaliana under photooxidative stress

Title:

The melatonin receptor CAND2 is involved in the regulation of photosynthesis and chloroplast gene expression in Arabidopsis thaliana under photooxidative stress

Creator:

Bychkov, I.A., Kudryakova, N.V., Pojidaeva, E.S., and Kusnetsov, V.V.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:48337ff0-d4d3-49b3-80b1-fb961c1025d7
uuid:48337ff0-d4d3-49b3-80b1-fb961c1025d7
doi:10.32615/ps.2021.061

Subject:

chloroplast genome expression, light stress, photosynthetic activity, and phytomelatonin receptor

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

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.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

683-692

Source:

Photosynthetica | 2021 Volume:59 | Number:4

Harvested from:

CDK

Metadata only:

false