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The combined effects of UV-C radiation and H2O2 on Microcystis aeruginosa, a bloom-forming cyanobacterium
Wang, Binliang1,3; Wang, Xi1,3; Hu, Yiwei2,3; Chang, Mingxian2; Bi, Yonghong1; Hu, Zhengyu1
2015-12-01
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume141Pages:34-43
AbstractIn order to get insight into the impacts of UVC/H2O2 on Microcystis aeruginosa, physiological and morphological changes as well as toxicity were detected under different UVC/H2O2 treatments. In the presence of sole UVC or H2O2, the net oxygen evolution rate decreased significantly (p < 0.05) since activity of photosystem II (PSII) was inhibited. Meanwhile, increase of intracellular reactive oxygen species (ROS), degradation of microcystin (MC) and ultrastructure destructions were observed. Under sole UVC treatment, no changes happened in the activity of photosystem I (PSI), but the degradation of D1 protein was observed. Under sole H2O2 treatment, an increase of malondialdehyde, aggregation of D1 protein and deformation of the thylakoid membrane were observed. ROS content under H2O2 treatment was about 5 times than that under UVC treatment. Combined use of UVC and H2O2, as well as 20 mJ cm(-2) UVC and 60 mu M H2O2, showed high synergetic effects. Obvious damage to membrane systems, the marked degradation of MC and inhibition of the photosystems were observed. It could be deduced that UVC worked on intracellular membrane components directly and the damaged oxygen-evolving complex, which was followed by the D1 protein degradation. H2O2 oxidised the membrane lipids via an ROS-mediated process, with thylakoid injury and the aggregation of D1 protein being the lethal mechanisms, and both PSII and PSI being the attacking targets. With regard towards the effective inactivation of M. aeruginosa and high removal of MC, UVC/H2O2 proposed a novel practical method in controlling cyanobacterial blooms. (C) 2015 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordUvc H2o2 Photosystem Cyanobacterial Bloom
DOI10.1016/j.chemosphere.2015.06.020
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationScience and Technology Research Project of China Three Gorges Corporation(CT-12-08-01) ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01) ; National Natural Science Foundation of China(31123001) ; National Natural Science Foundation of China(31123001) ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01) ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01) ; National Natural Science Foundation of China(31123001) ; National Natural Science Foundation of China(31123001)
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000363824400006
WOS KeywordPHOTOSYSTEM-II ; HYDROGEN-PEROXIDE ; OXIDATIVE STRESS ; D1 PROTEIN ; LIPID-PEROXIDATION ; QUALITY-CONTROL ; GREEN-ALGAE ; IN-VIVO ; PHOTOINHIBITION ; IRRADIATION
Funding OrganizationScience and Technology Research Project of China Three Gorges Corporation(CT-12-08-01) ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01) ; National Natural Science Foundation of China(31123001) ; National Natural Science Foundation of China(31123001) ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01) ; Science and Technology Research Project of China Three Gorges Corporation(CT-12-08-01) ; National Natural Science Foundation of China(31123001) ; National Natural Science Foundation of China(31123001)
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Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27343
Collection藻类生物学及应用研究中心_期刊论文
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Binliang,Wang, Xi,Hu, Yiwei,et al. The combined effects of UV-C radiation and H2O2 on Microcystis aeruginosa, a bloom-forming cyanobacterium[J]. CHEMOSPHERE,2015,141:34-43.
APA Wang, Binliang,Wang, Xi,Hu, Yiwei,Chang, Mingxian,Bi, Yonghong,&Hu, Zhengyu.(2015).The combined effects of UV-C radiation and H2O2 on Microcystis aeruginosa, a bloom-forming cyanobacterium.CHEMOSPHERE,141,34-43.
MLA Wang, Binliang,et al."The combined effects of UV-C radiation and H2O2 on Microcystis aeruginosa, a bloom-forming cyanobacterium".CHEMOSPHERE 141(2015):34-43.
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