Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of four Hylotelephium spectabile populations exhibit differences in phytoextraction potential

doi:10.1080/15226514.2018.1524836

	Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of four Hylotelephium spectabile populations exhibit differences in phytoextraction potential
	Guo, Junmei 1,2; Yang, Jun 1; Yang, Junxing 1; Chen, Tongbin 1; Guo, Lin 3
刊名	INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
	2019-02-23
卷号	21 期号:3 页码:209-216
关键词	Cadmium CAT Hylotelephium spectabile POD SOD subcellular distribution
ISSN号	1522-6514
DOI	10.1080/15226514.2018.1524836
通讯作者	Yang, Junxing(yangajx@126.com)
英文摘要	Hylotelephium spectabile with high tolerance to cadmium (Cd) might be a potential candidate for phytoremediation. However, the mechanisms for Cd accumulation and tolerance in H. spectabile are poorly understood. Four H. spectabile populations, namely HB1, HB2, JS, and LN, were selected to investigate their Cd extraction potential and the underlying mechanism of Cd accumulation, focusing on subcellular distribution and antioxidant enzymes. The Cd concentration, bioconcentration factor and transfer factor of the LN was significantly higher than other populations, particularly with increasing Cd exposure, and no obvious growth inhibition observed. Segregation of excessive Cd to Cd-rich granule in LN was much higher than other populations which reveal one possible mechanism of Cd accumulation. A significant increase in superoxide dismutase (SOD) and catalase (CAT) activities with increasing Cd stress suggested SOD and CAT contribute to the Cd tolerance of H. spectabile. LN displayed significantly higher and constant peroxidase (POD) activities than other populations, which indicated that an effective mechanism existed in the LN to cope with Cd stress. Therefore, the subcellular distribution and antioxidant enzymes might play important roles in Cd accumulation and tolerance of H. spectabile. LN possessed high Cd extraction potential, and further studies under field conditions are warranted.
资助项目	National Natural Science Foundation of China [NSFC][41771509] ; National Natural Science Foundation of China [NSFC][41771510] ; National Natural Science Foundation of China [NSFC][41201312] ; National Natural Science Foundation of China [NSFC][41271478] ; Science and Technology Service Network Initiative[KFJ-EW-STS-014] ; Special Project for Institute of Chinese Academic Sciences[TSYJS01] ; Phytoremediation Project of Farmland Polluted by Heavy Metal in Jiyuan County[JGZJ-2015152-01]
WOS关键词	INDUCED OXIDATIVE STRESS ; CHEMICAL FORMS ; THLASPI-CAERULESCENS ; CD UPTAKE ; L. ; ACCUMULATION ; CULTIVARS ; TOLERANCE ; HYPERACCUMULATOR ; ASCORBATE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000463831200004
资助机构	National Natural Science Foundation of China [NSFC] ; Science and Technology Service Network Initiative ; Special Project for Institute of Chinese Academic Sciences ; Phytoremediation Project of Farmland Polluted by Heavy Metal in Jiyuan County
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/48066]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Junxing
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, Peoples R China 3.Texas A&M, Dept Biol & Environm Sci, Commerce, TX USA
推荐引用方式 GB/T 7714	Guo, Junmei,Yang, Jun,Yang, Junxing,et al. Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of four Hylotelephium spectabile populations exhibit differences in phytoextraction potential[J]. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,2019,21(3):209-216.
APA	Guo, Junmei,Yang, Jun,Yang, Junxing,Chen, Tongbin,&Guo, Lin.(2019).Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of four Hylotelephium spectabile populations exhibit differences in phytoextraction potential.INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,21(3),209-216.
MLA	Guo, Junmei,et al."Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of four Hylotelephium spectabile populations exhibit differences in phytoextraction potential".INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 21.3(2019):209-216.