干旱区生态环境知识资源中心(Arid): Salinity alleviates arsenic stress-induced oxidative damage via antioxidative defense and metabolic adjustment in the root of the halophyte Salvadora persica

Arid

DOI	10.1007/s00425-023-04263-4
	Salinity alleviates arsenic stress-induced oxidative damage via antioxidative defense and metabolic adjustment in the root of the halophyte Salvadora persica
	Patel, Monika; Parida, Asish Kumar
通讯作者	Parida, AK
来源期刊	PLANTA
ISSN	0032-0935
EISSN	1432-2048
出版年	2023
卷号	258 期号:6
英文摘要	Arsenic tolerance in the halophyte Salvadora persica is achieved by enhancing antioxidative defense and modulations of various groups of metabolites like amino acids, organic acids, sugars, sugar alcohols, and phytohormones.Salvadora persica is a facultative halophyte that thrives under high saline and arid regions of the world. In present study, we examine root metabolic responses of S. persica exposed to individual effects of high salinity (750 mM NaCl), arsenic (600 mu M As), and combined treatment of salinity and arsenic (250 mM NaCl + 600 mu M As) to decipher its As and salinity resistance mechanism. Our results demonstrated that NaCl supplementation reduced the levels of reactive oxygen species (ROS) under As stress. The increased activities of antioxidant enzymes like superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), and glutathione reductase (GR) maintained appropriate levels of ROS [superoxide (O-2(center dot-)) and hydrogen peroxide (H2O2)] under salinity and/or As stress. The metabolites like sugars, amino acids, polyphenols, and organic acids exhibited higher accumulations when salt was supplied with As. Furthermore, comparatively higher accumulations of glycine, glutamate, and cystine under combined stress of salt and As may indicate its role in glutathione and phytochelatins (PCs) synthesis in root. The levels of phytohormones such as salicylate, jasmonate, abscisic acid, and auxins were significantly increased under high As with and without salinity stress. The amino acid metabolism, glutathione metabolism, carbohydrate metabolism, tricarboxylic acid cycle (TCA cycle), phenylpropanoid biosynthesis, and phenylalanine metabolism are the most significantly altered metabolic pathways in response to NaCl and/or As stress. Our study decoded the important metabolites and metabolic pathways involved in As and/or salinity tolerance in root of the halophyte S. persica providing clues for development of salinity and As resistance crops.
英文关键词	Arsenic stress Metabolites Phytochelatins Salinity Salvadora persica TCA cycle
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001094235000001
WOS关键词	CADMIUM ; L. ; GLUTATHIONE ; TOXICITY ; PLANTS ; ACID ; INVOLVEMENT ; TOLERANCE ; REVEALS ; GENES
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398042
推荐引用方式 GB/T 7714	Patel, Monika,Parida, Asish Kumar. Salinity alleviates arsenic stress-induced oxidative damage via antioxidative defense and metabolic adjustment in the root of the halophyte Salvadora persica[J],2023,258(6).
APA	Patel, Monika,&Parida, Asish Kumar.(2023).Salinity alleviates arsenic stress-induced oxidative damage via antioxidative defense and metabolic adjustment in the root of the halophyte Salvadora persica.PLANTA,258(6).
MLA	Patel, Monika,et al."Salinity alleviates arsenic stress-induced oxidative damage via antioxidative defense and metabolic adjustment in the root of the halophyte Salvadora persica".PLANTA 258.6(2023).