Effects and interactions of cadmium and zinc on root morphology and metal translocation in two populations ofHylotelephium spectabile(Boreau) H. Ohba, a potential Cd-accumulating species

doi:10.1007/s11356-020-08660-0

	Effects and interactions of cadmium and zinc on root morphology and metal translocation in two populations ofHylotelephium spectabile(Boreau) H. Ohba, a potential Cd-accumulating species
	Guo, Junmei 1,2; Guo, Yue 1; Yang, Jun 1,2; Yang, Junxing 1; Zheng, Guodi 1,2; Chen, Tongbin 1,2; Li, Zhitao 3; Wang, Xuedong 4; Bian, Jianlin 4; Meng, Xiaofei 1,2
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2020-04-10
页码	12
关键词	Cadmium Zinc Root morphology Metal translocation Hylotelephium spectabile(Boreau) H Ohba
ISSN号	0944-1344
DOI	10.1007/s11356-020-08660-0
通讯作者	Yang, Junxing(yangajx@igsnrr.ac.cn) ; Li, Zhitao(lizt@caep.org.cn)
英文摘要	The interactions between Cd and Zn in their effects on plants are inconsistent and difficult to predict. A hydroponic experiment was conducted to investigate the effects of Cd and Zn and their interactions on root morphology and metal translocation in two populations ofHylotelephium spectabile(Boreau) H. Ohba (Crassulaceae, HB1 and HB2). Both populations showed relative tolerance to high levels of Cd and Zn, except that the leaf biomass of HB1 significantly decreased by 44.6% with 5-mg/L Cd plus 10-mg/L Zn. Root growth was inhibited in both populations by addition of 20-mg/L Zn under Cd stress, while 10-mg/L Zn showed little impact on the root growth inhibition of HB2. Roots with diameter 0.1-0.4 mm contributed most of the total root length (RL) and root surface area (RSA) ofH. spectabile. In both populations, these root parameters showed greater suppression with the combined stress of Cd plus Zn than under Cd or Zn single stress, except by adding 10-mg/L Zn under Cd stress. Moreover, HB2 maintained relatively higher RL and RSA than HB1 under the different treatments, which implied that HB2 might possess a more effective mechanism than HB1 for coping in response to Cd and Zn stress. The addition of Zn not only affected the absorption of Cd but also significantly affected the distribution of Cd in different tissues ofH. spectabile. A low level of Zn led to increased Cd in the stem of HB2, but an increase in Cd in the leaf and root of HB1. Addition of 10-mg/L Zn led to a significant increase by 188% and 170% in Cd accumulation in aboveground part of HB2 under 2- and 5-mg/L Cd stress, whereas the addition of Zn had little effect on Cd accumulation in HB1. Thus, strong positive interactions of Cd and Zn occurred in HB2, which showed great potential for application in phytoremediation of soil contaminated with both Cd and Zn, warranting further investigation under field condition.
资助项目	National Key R&D Program of China[2018YFC1802604] ; National Natural Science Foundation of China[41771509] ; National Natural Science Foundation of China[41771510] ; National Natural Science Foundation of China[41907125] ; China Postdoctoral Science Foundation[2019M650827] ; Major Science and Technology Projects of Zhejiang Province[2020C02024]
WOS关键词	OXIDATIVE STRESS ; GROWTH ; ZN ; RHIZOSPHERE ; TOXICITY ; WHEAT ; L.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000557504800009
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Major Science and Technology Projects of Zhejiang Province
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/158172]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Junxing; Li, Zhitao
作者单位	1.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Environm Planning, Beijing 100012, Peoples R China 4.Capital Normal Univ, Coll Resource Environm & Tourism, Key Lab Resource Environm & GIS, 105 North Rd Xisanhuan, Beijing 100048, Peoples R China
推荐引用方式 GB/T 7714	Guo, Junmei,Guo, Yue,Yang, Jun,et al. Effects and interactions of cadmium and zinc on root morphology and metal translocation in two populations ofHylotelephium spectabile(Boreau) H. Ohba, a potential Cd-accumulating species[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020:12.
APA	Guo, Junmei.,Guo, Yue.,Yang, Jun.,Yang, Junxing.,Zheng, Guodi.,...&Meng, Xiaofei.(2020).Effects and interactions of cadmium and zinc on root morphology and metal translocation in two populations ofHylotelephium spectabile(Boreau) H. Ohba, a potential Cd-accumulating species.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,12.
MLA	Guo, Junmei,et al."Effects and interactions of cadmium and zinc on root morphology and metal translocation in two populations ofHylotelephium spectabile(Boreau) H. Ohba, a potential Cd-accumulating species".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020):12.