UVR8 mediated plant protective responses under low UV-B radiation leading to photosynthetic acclimation

Suruchi Singh; S B Agrawal; Madhoolika Agrawal

doi:10.1016/j.jphotobiol.2014.03.026

UVR8 mediated plant protective responses under low UV-B radiation leading to photosynthetic acclimation

J Photochem Photobiol B. 2014 Aug:137:67-76. doi: 10.1016/j.jphotobiol.2014.03.026. Epub 2014 Apr 13.

Authors

Suruchi Singh¹, S B Agrawal², Madhoolika Agrawal¹

Affiliations

¹ Laboratory of Air Pollution and Global Climate Change, Department of Botany, Banaras Hindu University, Varanasi 221005, India.
² Laboratory of Air Pollution and Global Climate Change, Department of Botany, Banaras Hindu University, Varanasi 221005, India. Electronic address: sbagrawal56@gmail.com.

PMID: 24780386
DOI: 10.1016/j.jphotobiol.2014.03.026

Abstract

The UV-B photoreceptor UVR8 regulates the expression of several genes leading to acclimation responses in plants. Direct role of UVR8 in maintaining the photosynthesis is not defined but it is known to increase the expression of some chloroplastic proteins like SIG5 and ELIP. It provides indirect protection to photosynthesis by regulating the synthesis of secondary metabolites and photomorphogenesis. Signaling cascades controlled by UVR8 mediate many protective responses thus promotes plant acclimation against stress and secures its survival.

Keywords: ELIP; Photomorphogenesis; Photosynthesis; SIG5; UV-B; UVR8.

Publication types

Research Support, Non-U.S. Gov't
Review

MeSH terms

Acclimatization / radiation effects*
Chromosomal Proteins, Non-Histone / genetics
Chromosomal Proteins, Non-Histone / metabolism*
Photosynthesis / physiology*
Photosynthesis / radiation effects*
Plant Proteins / genetics
Plant Proteins / metabolism*
Plants / genetics
Plants / metabolism*
Ultraviolet Rays*

Substances

Chromosomal Proteins, Non-Histone
Plant Proteins