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	Influence of speciation of thorium on toxic effects to green algae chlorella pyrenoidosa
	Peng, Can1; Ma, Yuhui2; Ding, Yayun2; He, Xiao2; Zhang, Peng2; Lan, Tu2; Wang, Dongqi2; Zhang, Zhaohui1; Zhang, Zhiyong2,3
刊名	International journal of molecular sciences
	2017-04-01
卷号	18期号:4页码:10
关键词	Thorium Speciation Toxicity Green algae Chlorella pyrenoidosa
ISSN号	1422-0067
DOI	10.3390/ijms18040795
通讯作者	Ma, yuhui(mayh@ihep.ac.cn) ; Zhang, zhaohui(zhaohuizzh@126.com) ; Zhang, zhiyong(zhangzhy@ihep.ac.cn)
英文摘要	Thorium (th) is a natural radioactive element present in the environment and has the potential to be used as a nuclear fuel. relatively little is known about the influence and toxicity of th in the environment. in the present study, the toxicity of th to the green algae chlorella pyrenoidosa (c. pyrenoidosa) was evaluated by algal growth inhibition, biochemical assays and morphologic observations. in the cultural medium (oecd tg 201), th(no3)(4) was transformed to amorphous precipitation of th(oh)(4) due to hydrolysis. th was toxic to c. pyrenoidosa, with a 96 h half maximum effective concentration (ec50) of 10.4 mu m. scanning electron microscopy shows that th-containing aggregates were attached onto the surface of the algal cells, and transmission electron microscopy indicates the internalization of nano-sized th precipitates and ultrastructural alterations of the algal cells. the heteroagglomeration between th(oh)(4) precipitation and alga cells and enhanced oxidative stress might play important roles in the toxicity of th. to our knowledge, this is the first report of the toxicity of th to algae with its chemical species in the exposure medium. this finding provides useful information on understanding the fate and toxicity of th in the aquatic environment.
WOS关键词	CARBON NANOTUBES ; WATER ; NANOPARTICLES ; GROWTH ; CERIUM ; STATE ; SIZE
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000402639400119
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177393
专题	高能物理研究所
通讯作者	Ma, Yuhui; Zhang, Zhaohui; Zhang, Zhiyong
作者单位	1.Univ South China, Sch Publ Hlth, Hengyang 421001, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Peng, Can,Ma, Yuhui,Ding, Yayun,et al. Influence of speciation of thorium on toxic effects to green algae chlorella pyrenoidosa[J]. International journal of molecular sciences,2017,18(4):10.
APA	Peng, Can.,Ma, Yuhui.,Ding, Yayun.,He, Xiao.,Zhang, Peng.,...&Zhang, Zhiyong.(2017).Influence of speciation of thorium on toxic effects to green algae chlorella pyrenoidosa.International journal of molecular sciences,18(4),10.
MLA	Peng, Can,et al."Influence of speciation of thorium on toxic effects to green algae chlorella pyrenoidosa".International journal of molecular sciences 18.4(2017):10.

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