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题名: Phytotoxicity, bioaccumulation and potential risks of plant irrigations using cyanobloom-loading freshwater
作者: Jia, Yunlu1, 2; Li, Huiling3; Qu, Yueming1; Chen, Wei1; Song, Lirong1
关键词: Harmful cyanobaterial blooms ; Metals ; Persistent organic pollutants ; Phytotoxicity ; Plant irrigations ; Lake Taihu
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
发表日期: 2018-05-15
DOI: 10.1016/j.scitotenv.2017.12.164
卷: 624, 页:704-712
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: The toxicity of cyanotoxins on plant has been reported. However, in eutrophic waters harmful cyanobacteria are associated with other environmental pollutants, such as persistent organic pollutants (POPS) and metals. Information on the phytotoxicity and bioaccumulation of coexisted cyanotoxins and these environmental pollutants is still lacking. In this study, the combined phytotoxicities of three types of cyanobacteria-associated pollutants, i.e., microcystin-LR (MC-LR), cadmium (Cd), 2, 4, 4'-Trichlorobiphenyl (PCB-28) were systematically investigated. After 7-days exposure, strong synergistic effects can be detected when Aratridopsis thaliana seeds and seedlings exposed to binary mixtures of MC-LR + PCB-28 and PCB-28 + Cd. The strongest inhibition occurred when A. thaliana exposed to their ternary mixture under both glasshouse and semi-field conditions. Moreover, bioaccumulation of MC-LR, Cd and PCB-28 was enhanced when seedlings exposed to their binary/ternary mixtures, especially when seedlings were treated with higher concentrations of toxicants (MC-LR, 1 mg L-1; Cd, 10 mg L-1; PCB-28, 1 mu g L-1). Additionally, pronounced toxic effects could be determined under 7-days after seedlings were irrigated with raw cyanobloom-containing water (collected from Lake Taihu in China)and its dilutions. Seeds production decreased significantly after the continuous irrigation with cyanoblooms-containing water. Collectively, this work will be an informative implication for risks of cyanoblooms and adequate utilization of freshwater containing cyanoblooms for crop irrigation. (C) 2017 Elsevier B.V. All rights reserved.
关键词[WOS]: RICE ORYZA-SATIVA ; HEAVY-METALS ; SEED-GERMINATION ; MICROCYSTIN-LR ; CYANOBACTERIAL TOXINS ; ARABIDOPSIS-THALIANA ; OXIDATIVE STRESS ; DIETARY-INTAKE ; CRUDE EXTRACT ; LAKE TAIHU
语种: 英语
项目资助者: National Natural Science Foundation of China(40971249) ; National Science Foundation of China(41561144008)
WOS记录号: WOS:000426355900070
ISSN号: 0048-9697
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/50695
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Rhein Westfal TH Aachen, Dept Ecosyst Anal, Inst Environm Res, Worringerweg 1, D-52074 Aachen, Germany
3.Wuhan Univ, Coll Pharm, Wuhan 430071, Hubei, Peoples R China
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