Seed priming improved salt-stressed sorghum growth by enhancing antioxidative defense

Xiaoqian Guo; Wenfang Zhi; Yuntong Feng; Guisheng Zhou; Guanglong Zhu

doi:10.1371/journal.pone.0263036

Seed priming improved salt-stressed sorghum growth by enhancing antioxidative defense

PLoS One. 2022 Feb 25;17(2):e0263036. doi: 10.1371/journal.pone.0263036. eCollection 2022.

Authors

Xiaoqian Guo^{1

2}, Wenfang Zhi^{1

2}, Yuntong Feng^{1

2}, Guisheng Zhou^{1

2}, Guanglong Zhu¹

Affiliations

¹ Joint International Laboratory of Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu Province, China.
² Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, Jiangsu Province, China.

Abstract

Seed priming is regarded as a beneficial and effective method enhancing performance of plants grown under stress conditions. This study illustrated the effect of four seed priming agents (2% H2O2, 52 mM NaCl, 50 mM KCl, 250 mM MgSO4) on two sorghum cultivars (Canada sorghum CFSH-30 and sorghum '1230') grown in saline soils. Sorghum growth characteristics and biochemical parameters were investigated. Seed priming treatments alleviated the adverse effects of salt stress by decreasing MDA content and enhancing antioxidant enzymes (CAT, POD and SOD) activities and proline content, and hence increased sorghum fresh and dry weight. In terms of various parameters, sorghum '1230' was more suitable to be grown in saline soil, and 52 mM NaCl and 50 mM KCl were the optimum priming agents to improve the performance of salt-stressed sorghum.

Publication types

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

MeSH terms

Antioxidants / metabolism
Canada
Edible Grain / genetics
Edible Grain / growth & development
Hydrogen Peroxide / metabolism
Oxidative Stress / genetics*
Oxidative Stress / physiology
Plant Proteins / genetics*
Proline / genetics
Salt Stress / genetics
Seeds / genetics*
Seeds / growth & development
Sorghum / genetics*
Sorghum / growth & development

Substances

Antioxidants
Plant Proteins
Proline
Hydrogen Peroxide

Grants and funding

This study is financially supported by: 1. China National Key R & D Program Grant No.: 2018YFE0108100 Awardee: Zhou, Guisheng Funding agency: Ministry of Science and Technology of the People’s Republic of China Initials of authors who received salary or other funding from commercial companies: No URLs to sponsors’ websites: http://www.most.gov.cn/index.html 2. Jiangsu Provincial Forestry Science and Technology Innovation and Extension Program Grant No.: LYKJ(2019)47 Awardee: Zhou, Guisheng Funding agency: Department of Forestry, Jiangsu Province, the Peoples’ Republic of China Initials of authors who received salary or other funding from commercial companies: No URLs to sponsors’ websites: http://lyj.jiangsu.gov.cn/.