中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Effects of cadmium stress on growth and amino acid metabolism in two Compositae plants

文献类型：期刊论文

作者Zhu, Guangxu1,2; Xiao, Huayun1,3; Guo, Qingjun4; Zhang, Zhongyi1,3; Zhao, Jingjing1; Yang, Dan2
刊名ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
出版日期2018-08-30
卷号158页码:300-308
关键词Amino acid metabolism Cadmium stress Compositae plant Cd-hyperaccumulator
ISSN号0147-6513
DOI10.1016/j.ecoenv.2018.04.045
通讯作者Zhu, Guangxu(zhugx.10b@igsnrr.ac.cn) ; Xiao, Huayun(xiaohuayun@vip.skleg.cn)
英文摘要Cadmium, a high toxic heavy metal, is one of the most serious contaminants in soil and a potential threat to plant growth and human health. Amino acid metabolism has the central role in heavy metal stress resistance of plants. In this paper, a pot experiment was carried out to study the effects of different concentrations of cadmium (0, 3, 6, 12, 30 mg kg(-1)) on the growth, Cd accumulation and amino acid metabolism in two Compositae plants (Ageratum conyzoides L. and Crassocephalwn crepidioides). The results showed that under cadmium stress, C. crepidioides accumulated more Cd in its shoot and was tolerant to Cd, whereas its low Cd-accumulating relative, A. conyzoides, suffered reduced growth. The Cd content in the aerial part of C. crepidioides exceeded the threshold of Cd-hyperaccumulator. Furthermore, the bioaccumulation factor (BCF) and biological transfer factor (BTF) values for Cd in C. crepidioides were > 1. Thus, C. crepidioides can be regarded as Cd-hyperaccumulator. The comparison between both studied plants indicated that Cd stress resulted in a differential but coordinated response of amino acid levels, which are playing a significant role in plant adaptation to Cd stress. Glu, Gln, Asp, Asn, Gaba, Val and Ala dominated the major amino acids. Higher Cd tolerance and Cd accumulation in C. crepidioides was associated with greater accumulation of free amino acids, especially for Gln and Asn, in C. crepidioides than in A. conyzoides.
WOS关键词HEAVY-METALS ; ENZYME-ACTIVITIES ; TOXIC METALS ; PHYTOREMEDIATION ; TOLERANCE ; L. ; HISTIDINE ; RESPONSES ; NITROGEN ; CONTAMINATION
资助项目National Natural Science Foundation of China[41425014] ; National Natural Science Foundation of China[41625006] ; National Natural Science Foundation of China[31600442] ; China Postdoctoral Science Foundation[2015M582578] ; National Key Research and Development Program of China[2016YFA0601000] ; Development Services of Feature Institute Program of Chinese Academy of Sciences[TSYJS01] ; Joint Funds of the Natural Science Foundation of Science and Technology Department of Guizhou Province, China[LH [2014] 7168]
WOS研究方向Environmental Sciences & Ecology ; Toxicology
语种英语
WOS记录号WOS:000434494000037
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
资助机构National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China ; Development Services of Feature Institute Program of Chinese Academy of Sciences ; Joint Funds of the Natural Science Foundation of Science and Technology Department of Guizhou Province, China
源URL[http://ir.igsnrr.ac.cn/handle/311030/54702]  
专题中国科学院地理科学与资源研究所
通讯作者Zhu, Guangxu; Xiao, Huayun
作者单位1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China
2.Guiyang Univ, Coll Biol & Environm Engn, Guiyang 550005, Guizhou, Peoples R China
3.East China Univ Technol, Key Lab Nucl Resource & Environm, Lab Atmospher Environm, Nanchang 330013, Jiangxi, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Guangxu,Xiao, Huayun,Guo, Qingjun,et al. Effects of cadmium stress on growth and amino acid metabolism in two Compositae plants[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2018,158:300-308.
APA Zhu, Guangxu,Xiao, Huayun,Guo, Qingjun,Zhang, Zhongyi,Zhao, Jingjing,&Yang, Dan.(2018).Effects of cadmium stress on growth and amino acid metabolism in two Compositae plants.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,158,300-308.
MLA Zhu, Guangxu,et al."Effects of cadmium stress on growth and amino acid metabolism in two Compositae plants".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 158(2018):300-308.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。