Effect of exogenous catechin and salicylic acid on rice productivity under ozone stress: the role of chlorophyll contents, lipid peroxidation, and antioxidant enzymes

Journal article

Authors/Editors

CHAIRAT TREESUBSUNTORN

Strategic Research Themes

Agro- Industrial waste (Sustainable environmental technology)

Publication Details

Author list: Kittipornkul P., Treesubsuntorn C., Thiravetyan P.

Publisher: Springer

Publication year: 2020

Journal: Environmental Science and Pollution Research (0944-1344)

Volume number: 27

Issue number: 20

Start page: 25774

End page: 25784

Number of pages: 11

ISSN: 0944-1344

eISSN: 1614-7499

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084239706&doi=10.1007%2fs11356-020-08962-3&partnerID=40&md5=7f70f4f9ad78a2d2659dc7bc80bbdbe8

Languages: English-Great Britain (EN-GB)

View in Web of Science | View on publisher site | View citing articles in Web of Science

Abstract

Increasing ozone concentration is one of the oxidative stresses that affects rice yield loss in many countries. Catechin and salicylic acid were proposed as tools for alleviating oxidative stress in plants, but their roles in protecting rice productivity under ozone stress still remained unknown. We investigated the mechanism of catechin and salicylic acid on rice under ozone stress at the vegetative stage and at the reproductive stage. Rice was sprayed with catechin and salicylic acid before exposure to ozone in the range of 100–150 ppb (8 h day−1). Ozone and salicylic acid led to a decrease in chlorophyll contents, magnesium contents, and stomatal conductance. This evidence led to a decrease in rice productivity and quality. In contrast, under rice + catechin, both ambient air and elevated ozone conditions had to higher rice productivity and quality than under rice alone and rice + salicylic acid conditions. Catechin could mitigate ozone stress in rice plants through maintaining chlorophyll contents, magnesium contents, and stomatal conductance. Moreover, catechin could induce an unregulation of ascorbate peroxidase, and catalase genes led to increasing their antioxidant enzyme activity. Increasing of antioxidant enzyme activity under rice + ozone + catechin conditions attributed to lower lipid peroxidation than under rice + ozone especially at vegetative stage. This study confirmed that catechin, which is naturally found in tea leaves, could be used as an ozone protectant. The protective role of catechin on chlorophyll contents and antioxidant systems at the vegetative stage attributed to maintaining rice yield under ozone stress. [Figure not available: see fulltext.]. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.

Keywords

catechin, Oryza sativa ozone