Molecular cloning and characterization of the glutathione reductase gene from Stipa purpurea

Qiuli Wang; Yanan Pu; Danni Yang; Xin Yin; Zhaorong He; Yunqiang Yang; Yongping Yang

doi:10.1016/j.bbrc.2017.12.054

Molecular cloning and characterization of the glutathione reductase gene from Stipa purpurea

Biochem Biophys Res Commun. 2018 Jan 8;495(2):1851-1857. doi: 10.1016/j.bbrc.2017.12.054. Epub 2017 Dec 9.

Authors

Qiuli Wang¹, Yanan Pu², Danni Yang², Xin Yin², Zhaorong He³, Yunqiang Yang⁴, Yongping Yang⁵

Affiliations

¹ Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China; Plant Germplasm and Genomics Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; School of Life Sciences, Yunnan University, Kunming, 650091, China.
² Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China; Plant Germplasm and Genomics Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China.
³ School of Life Sciences, Yunnan University, Kunming, 650091, China.
⁴ Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China; Plant Germplasm and Genomics Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China. Electronic address: [email protected].
⁵ Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China; Plant Germplasm and Genomics Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China. Electronic address: [email protected].

PMID: 29233696
DOI: 10.1016/j.bbrc.2017.12.054

Abstract

Reactive oxygen species (ROS) are a key factor in abiotic stresses; excess ROS is harmful to plants. Glutathione reductase (GR) plays an important role in scavenging ROS in plants. Here, a GR gene, named SpGR, was cloned from Stipa purpurea and characterized. The full-length open reading frame was 1497 bp, encoding 498 amino acids. Subcellular localization analysis indicated that SpGR was localized to both the plasma membrane and nucleus. The expression of SpGR was induced by cold, salt, and drought stresses. Functional analysis indicated that ectopic expression of SpGR in Arabidopsis thaliana resulted in greater tolerance to salt stress than that of wild-type plants, but no difference under cold or drought treatments. The results of GR activity and GSSG and GSH content analyses suggested that, under salt stress, transgenic plants produced more GR to reduce GSSG to GSH for scavenging ROS than wild-type plants. Therefore, SpGR may be a candidate gene for plants to resist abiotic stress.

Keywords: GSH; GSSG; Glutathione reductase; Salinity; Stipa purpurea.

Publication types

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

MeSH terms

Arabidopsis / physiology*
Cloning, Molecular / methods
Enzyme Activation
Genetic Enhancement / methods
Glutathione Reductase / chemistry*
Glutathione Reductase / genetics
Glutathione Reductase / metabolism*
Plants, Genetically Modified / physiology*
Poaceae / enzymology*
Poaceae / genetics
Reactive Oxygen Species / metabolism*
Salt-Tolerant Plants / genetics*

Substances

Reactive Oxygen Species
Glutathione Reductase