Effects of grafting on root-to-shoot cadmium translocation in plants of eggplant (Solanum melongena) and tomato (Solanum lycopersicum)

doi:10.1016/j.scitotenv.2018.10.129

	Effects of grafting on root-to-shoot cadmium translocation in plants of eggplant (Solanum melongena) and tomato (Solanum lycopersicum)
	Yuan, Honghong 1,2; Sun, Lizong 2; Tai, Peidong 2; Liu, Wan 2; Li, Xiaojun 2; Hao, Lin 3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-02-20
卷号	652 页码:989-995
关键词	Solanum melongena Solanum lycopersicum Solanum torvum Grafting Cd accumulation Sulfur
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.10.129
英文摘要	Heavy metal cadmium(Cd) pollution in farmland has become a serious threat to food security globally. In this work, a grafting technique was applied to eggplant (Solanum melongena) and tomato (Solanum lycopersicum) plants using Solanum torvum as rootstock to investigate effects of grafting on Cd accumulation in shoots. The un-grafted, self-grafted, and grafted plants were grown in soils containing 2 mg kg(-1) Cd. Results showed that grafting on S. torvum could efficiently reduce Cd accumulation in leaves of eggplant and tomato, and the decrease was 89% and 72%, respectively. With S. torvum as rootstock, Cd concentrations were 1.11 mg kg(-1) and 6.58 mg kg(-1) in leaves of grafted eggplant and tomato, which were significantly decreased as compared with un-grafted plants (10.12 mg kg(-1) and 23.19 mg kg(-1), respectively, p < 0.05). In addition, Cd concentrations were 12.11 mg kg(-1) and 29.47 mg kg(-1) in leaves of self-grafted eggplant and tomato, respectively, which was similar to those in un-grafted eggplant, but more than those in un-grafted tomato (p < 0.05). This suggests that the S. torvum rootstock, and not the grafting operation, was responsible for efficient reduction of Cd accumulation in shoots of eggplant and tomato plants. Furthermore, total sulfur and sulfate (SO42-) concentrations analysis revealed that there was a similar trend between Cd accumulation and total sulfur or SO42- concentrations in leaves of plants tested. Additionally, a strong positive correlation between Cd accumulation and total sulfur or SO42- concentrations occurred in leaves of eggplant and tomato plants. Thus, sulfur, mainly SO42-, in leaves may play an important regulatory role in Cd accumulation of eggplant and tomato plants. This study provides the theoretical and technical support for applying grafting technique for the safe practice of farming in Cd-contaminated agricultural soil. (C) 2018 Published by Elsevier B.V.
资助项目	National Key Research and Development Program of China[2016YFD0800305] ; National Natural Science Foundation of China (NSFC)[21677151] ; National Natural Science Foundation of China (NSFC)[41673132] ; National Natural Science Foundation of China (NSFC)[31570502]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000454418500091
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/123839]
专题	中国科学院沈阳应用生态研究所
通讯作者	Tai, Peidong
作者单位	1.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Liaoning, Peoples R China 3.Shenyang Normal Univ, Coll Life Sci, Shenyang 110034, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Honghong,Sun, Lizong,Tai, Peidong,et al. Effects of grafting on root-to-shoot cadmium translocation in plants of eggplant (Solanum melongena) and tomato (Solanum lycopersicum)[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,652:989-995.
APA	Yuan, Honghong,Sun, Lizong,Tai, Peidong,Liu, Wan,Li, Xiaojun,&Hao, Lin.(2019).Effects of grafting on root-to-shoot cadmium translocation in plants of eggplant (Solanum melongena) and tomato (Solanum lycopersicum).SCIENCE OF THE TOTAL ENVIRONMENT,652,989-995.
MLA	Yuan, Honghong,et al."Effects of grafting on root-to-shoot cadmium translocation in plants of eggplant (Solanum melongena) and tomato (Solanum lycopersicum)".SCIENCE OF THE TOTAL ENVIRONMENT 652(2019):989-995.