The combined effects of UV-C radiation and H2O2 on Microcystis aeruginosa, a bloom-forming cyanobacterium
•Responses of photosynthetic activities to UVC and H2O2 were investigated.•Changing of ultrastructure was screened under UVC and H2O2 treatments.•Aggregation of the D1 protein was caused by H2O2.•H2O2 had a stronger damage on PSI than UVC.•Synergetic effects of UVC and H2O2 on membrane systems and p...
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| Veröffentlicht in: | Chemosphere (Oxford) 2015-12, Vol.141, p.34-43 |
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| creator | Wang, Binliang Wang, Xi Hu, Yiwei Chang, Mingxian Bi, Yonghong Hu, Zhengyu |
| description | •Responses of photosynthetic activities to UVC and H2O2 were investigated.•Changing of ultrastructure was screened under UVC and H2O2 treatments.•Aggregation of the D1 protein was caused by H2O2.•H2O2 had a stronger damage on PSI than UVC.•Synergetic effects of UVC and H2O2 on membrane systems and photosystems were studied.
In 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 |
| doi_str_mv | 10.1016/j.chemosphere.2015.06.020 |
| format | Article |
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In 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 20mJcm−2 UVC and 60μM 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.</description><identifier>ISSN: 0045-6535</identifier><identifier>EISSN: 1879-1298</identifier><identifier>DOI: 10.1016/j.chemosphere.2015.06.020</identifier><identifier>PMID: 26092198</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Agglomeration ; Cyanobacteria ; Cyanobacterial bloom ; Damage ; Degradation ; Eutrophication - drug effects ; Eutrophication - radiation effects ; H2O2 ; Hydrogen Peroxide - chemistry ; Malondialdehyde - metabolism ; Membranes ; Microcystins - metabolism ; Microcystis ; Microcystis - drug effects ; Microcystis - radiation effects ; Microcystis - ultrastructure ; Microcystis aeruginosa ; Oxidation-Reduction ; Photosystem ; Photosystem II Protein Complex - metabolism ; Proteins ; Reactive Oxygen Species - metabolism ; Sole ; Thylakoids - drug effects ; Thylakoids - metabolism ; Toxicity ; Ultraviolet Rays ; UVC</subject><ispartof>Chemosphere (Oxford), 2015-12, Vol.141, p.34-43</ispartof><rights>2015 Elsevier Ltd</rights><rights>Copyright © 2015 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0045653515006396$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26092198$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Binliang</creatorcontrib><creatorcontrib>Wang, Xi</creatorcontrib><creatorcontrib>Hu, Yiwei</creatorcontrib><creatorcontrib>Chang, Mingxian</creatorcontrib><creatorcontrib>Bi, Yonghong</creatorcontrib><creatorcontrib>Hu, Zhengyu</creatorcontrib><title>The combined effects of UV-C radiation and H2O2 on Microcystis aeruginosa, a bloom-forming cyanobacterium</title><title>Chemosphere (Oxford)</title><addtitle>Chemosphere</addtitle><description>•Responses of photosynthetic activities to UVC and H2O2 were investigated.•Changing of ultrastructure was screened under UVC and H2O2 treatments.•Aggregation of the D1 protein was caused by H2O2.•H2O2 had a stronger damage on PSI than UVC.•Synergetic effects of UVC and H2O2 on membrane systems and photosystems were studied.
In 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 20mJcm−2 UVC and 60μM 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.</description><subject>Agglomeration</subject><subject>Cyanobacteria</subject><subject>Cyanobacterial bloom</subject><subject>Damage</subject><subject>Degradation</subject><subject>Eutrophication - drug effects</subject><subject>Eutrophication - radiation effects</subject><subject>H2O2</subject><subject>Hydrogen Peroxide - chemistry</subject><subject>Malondialdehyde - metabolism</subject><subject>Membranes</subject><subject>Microcystins - metabolism</subject><subject>Microcystis</subject><subject>Microcystis - drug effects</subject><subject>Microcystis - radiation effects</subject><subject>Microcystis - ultrastructure</subject><subject>Microcystis aeruginosa</subject><subject>Oxidation-Reduction</subject><subject>Photosystem</subject><subject>Photosystem II Protein Complex - metabolism</subject><subject>Proteins</subject><subject>Reactive Oxygen Species - metabolism</subject><subject>Sole</subject><subject>Thylakoids - drug effects</subject><subject>Thylakoids - metabolism</subject><subject>Toxicity</subject><subject>Ultraviolet Rays</subject><subject>UVC</subject><issn>0045-6535</issn><issn>1879-1298</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkU1LJDEQhsOi6Kz6F5Z487Dd5qM7nRxlcNcFFy_qNeSj4mSY7oxJ98L8-43ogseFgqrDUwX1PghdUtJSQsX1tnUbGFPZbyBDywjtWyJawsgXtKJyUA1lSh6hFSFd34ie96foaylbQupyr07QKRNEMarkCsXHDWCXRhsn8BhCADcXnAJ-em7WOBsfzRzThM3k8R17YLjOv6PLyR3KHAs2kJeXOKVivmOD7S6lsQkpj3F6we5gpmSNmyHHZTxHx8HsClx89DP09OP2cX3X3D_8_LW-uW-A82FuQCjDCJe8G5QPoRa3PgjmqLedUhRE6J2lgRjhLfP1U9PxnvohUANSWn6Grt7v7nN6XaDMeozFwW5nJkhL0XQQjNJu6Ol_oJ2QkkhOKvrtA13sCF7vcxxNPuh_SVZg_Q5A_e1PhKyLizA58DHXTLVPUVOi3_zprf7kT7_500To6o__BUP_kPc</recordid><startdate>201512</startdate><enddate>201512</enddate><creator>Wang, Binliang</creator><creator>Wang, Xi</creator><creator>Hu, Yiwei</creator><creator>Chang, Mingxian</creator><creator>Bi, Yonghong</creator><creator>Hu, Zhengyu</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>M7N</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>201512</creationdate><title>The combined effects of UV-C radiation and H2O2 on Microcystis aeruginosa, a bloom-forming cyanobacterium</title><author>Wang, Binliang ; Wang, Xi ; Hu, Yiwei ; Chang, Mingxian ; Bi, Yonghong ; Hu, Zhengyu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e337t-e69a20383479dffdff3bdf62c1db4991e6f5cb1f0a6db2d129a4351d7f1ae88b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Agglomeration</topic><topic>Cyanobacteria</topic><topic>Cyanobacterial bloom</topic><topic>Damage</topic><topic>Degradation</topic><topic>Eutrophication - drug effects</topic><topic>Eutrophication - radiation effects</topic><topic>H2O2</topic><topic>Hydrogen Peroxide - chemistry</topic><topic>Malondialdehyde - metabolism</topic><topic>Membranes</topic><topic>Microcystins - metabolism</topic><topic>Microcystis</topic><topic>Microcystis - drug effects</topic><topic>Microcystis - radiation effects</topic><topic>Microcystis - ultrastructure</topic><topic>Microcystis aeruginosa</topic><topic>Oxidation-Reduction</topic><topic>Photosystem</topic><topic>Photosystem II Protein Complex - metabolism</topic><topic>Proteins</topic><topic>Reactive Oxygen Species - metabolism</topic><topic>Sole</topic><topic>Thylakoids - drug effects</topic><topic>Thylakoids - metabolism</topic><topic>Toxicity</topic><topic>Ultraviolet Rays</topic><topic>UVC</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Binliang</creatorcontrib><creatorcontrib>Wang, Xi</creatorcontrib><creatorcontrib>Hu, Yiwei</creatorcontrib><creatorcontrib>Chang, Mingxian</creatorcontrib><creatorcontrib>Bi, Yonghong</creatorcontrib><creatorcontrib>Hu, Zhengyu</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Chemosphere (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Binliang</au><au>Wang, Xi</au><au>Hu, Yiwei</au><au>Chang, Mingxian</au><au>Bi, Yonghong</au><au>Hu, Zhengyu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The combined effects of UV-C radiation and H2O2 on Microcystis aeruginosa, a bloom-forming cyanobacterium</atitle><jtitle>Chemosphere (Oxford)</jtitle><addtitle>Chemosphere</addtitle><date>2015-12</date><risdate>2015</risdate><volume>141</volume><spage>34</spage><epage>43</epage><pages>34-43</pages><issn>0045-6535</issn><eissn>1879-1298</eissn><abstract>•Responses of photosynthetic activities to UVC and H2O2 were investigated.•Changing of ultrastructure was screened under UVC and H2O2 treatments.•Aggregation of the D1 protein was caused by H2O2.•H2O2 had a stronger damage on PSI than UVC.•Synergetic effects of UVC and H2O2 on membrane systems and photosystems were studied.
In 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 20mJcm−2 UVC and 60μM 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.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>26092198</pmid><doi>10.1016/j.chemosphere.2015.06.020</doi><tpages>10</tpages></addata></record> |
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| ispartof | Chemosphere (Oxford), 2015-12, Vol.141, p.34-43 |
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| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Agglomeration Cyanobacteria Cyanobacterial bloom Damage Degradation Eutrophication - drug effects Eutrophication - radiation effects H2O2 Hydrogen Peroxide - chemistry Malondialdehyde - metabolism Membranes Microcystins - metabolism Microcystis Microcystis - drug effects Microcystis - radiation effects Microcystis - ultrastructure Microcystis aeruginosa Oxidation-Reduction Photosystem Photosystem II Protein Complex - metabolism Proteins Reactive Oxygen Species - metabolism Sole Thylakoids - drug effects Thylakoids - metabolism Toxicity Ultraviolet Rays UVC |
| title | The combined effects of UV-C radiation and H2O2 on Microcystis aeruginosa, a bloom-forming cyanobacterium |
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