干旱区生态环境知识资源中心(Arid): Protective effects of polymer amendment on specific metabolites in soil and cotton leaves under cadmium contamination

Arid

DOI	10.1016/j.ecoenv.2023.115463
	Protective effects of polymer amendment on specific metabolites in soil and cotton leaves under cadmium contamination
	An, Mengjie; Chang, Doudou; Wang, Xiaoli; Wang, Kaiyong
通讯作者	Wang, KY
来源期刊	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN	0147-6513
EISSN	1090-2414
出版年	2023
卷号	264
英文摘要	Polymer materials have great potential for soil heavy metal contamination remediation, but the metabolic mechanism by which polymer amendments regulate the responses of soil-plant systems to cadmium (Cd) stress is still unclear. To clarify the metabolic mechanism by which a self-developed soluble polymer amendment (PA) remediates Cd contamination in cotton fields, the common and differential metabolites in soil and cotton leaves were analyzed during the critical period of cotton growth (flowering and bolling stage) in a field experiment. The results showed that Cd stress increased Cd concentration in the soil-cotton system, and reduced enzyme activity in soil and cotton leaves. Besides, Cd stress also reduced the abundance of alpha-linolenic acid in soil and the abundance of 2-Oxoarginine and S-Adenosylmethionine in cotton leaves. These ultimately led to reductions in weight, boll number, yield, and fiber elongation. However, the application of PA to the Cd-contaminated soil significantly reduced the soil exchangeable Cd (Ex-Cd) concentration by 41.43%, and increased the boll number, yield, and fiber strength by 14.17%, 21.04%, and 19.89%, respectively compared with the Cd treatment. The results of metabolomic analysis showed that PA application mainly affected the Nicotinate and nicotinamide metabolism pathway, Lysine degradation pathway, and Arginine and proline metabolism pathway in cotton leaves and soil. Besides, in these metabolic pathways, succinic acid semialdehyde of cotton leaves, saccharopine of soil, and S-Adenosylmethionine of soil and cotton had the most significant response to PA application. Therefore, the application of PA to Cd-contaminated soil can increase soil and cotton leaf enzyme activity and cotton yield (boll number and seed cotton yield) and quality (fiber strength), and maintain soil-plant material balance by regulating the distribution of Cd ions and key metabolites in the soil-cotton system. This study will deepen our understanding of the metabolic mechanism of PA remediating Cd-contaminated cotton fields, and provide a technical reference for the remediation of heavy metal contamination in drip-irrigated cotton fields in arid areas.
英文关键词	Cadmium contamination Soil-cotton systems Metabolome profile Polymer amendment
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001078608200001
WOS关键词	SUPEROXIDE-DISMUTASE ; TOLERANCE ; PLANTS ; POLLUTION ; STRESS ; LEAD ; L.
WOS类目	Environmental Sciences ; Toxicology
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396039
推荐引用方式 GB/T 7714	An, Mengjie,Chang, Doudou,Wang, Xiaoli,et al. Protective effects of polymer amendment on specific metabolites in soil and cotton leaves under cadmium contamination[J],2023,264.
APA	An, Mengjie,Chang, Doudou,Wang, Xiaoli,&Wang, Kaiyong.(2023).Protective effects of polymer amendment on specific metabolites in soil and cotton leaves under cadmium contamination.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,264.
MLA	An, Mengjie,et al."Protective effects of polymer amendment on specific metabolites in soil and cotton leaves under cadmium contamination".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 264(2023).