Quenchers Protect BChl850 from Action of Singlet Oxygen in the Membranes of a Sulfur Photosynthetic Bacterium Allochromatium vinosum Strain MSU
— The effect of singlet oxygen was studied in the system of Allochromatium ( Alc. ) vinosum MSU membranes, rose bengal, and light (547−600nm) with and without a quencher. In the system without a quencher, bleaching of the BChl850 band of the LH2 light-harvesting complex was observed and an absorptio...
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| Veröffentlicht in: | Microbiology (New York) 2019, Vol.88 (1), p.79-86 |
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| creator | Makhneva, Z. K. Ashikhmin, A. A. Bolshakov, M. A. Moskalenko, A. A. |
| description | —
The effect of singlet oxygen was studied in the system of
Allochromatium
(
Alc.
)
vinosum
MSU membranes, rose bengal, and light (547−600nm) with and without a quencher. In the system without a quencher, bleaching of the BChl850 band of the LH2 light-harvesting complex was observed and an absorption peak emerged at 698 nm, which belonged to the oxidized product, 3-acetyl-chlorophyll. The efficiency of five quenchers of singlet oxygen for neutralization of the effect of singlet oxygen on bacteriochlorophyll in the light-harvesting complexes of the membranes
Alc. vinosum
MSU was studied: sodium ascorbate, histidine, imidazole, trolox, and sodium azide. All of them, with the exception of sodium azide, neutralized successively the effect of singlet oxygen. |
| doi_str_mv | 10.1134/S0026261719010119 |
| format | Article |
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The effect of singlet oxygen was studied in the system of
Allochromatium
(
Alc.
)
vinosum
MSU membranes, rose bengal, and light (547−600nm) with and without a quencher. In the system without a quencher, bleaching of the BChl850 band of the LH2 light-harvesting complex was observed and an absorption peak emerged at 698 nm, which belonged to the oxidized product, 3-acetyl-chlorophyll. The efficiency of five quenchers of singlet oxygen for neutralization of the effect of singlet oxygen on bacteriochlorophyll in the light-harvesting complexes of the membranes
Alc. vinosum
MSU was studied: sodium ascorbate, histidine, imidazole, trolox, and sodium azide. All of them, with the exception of sodium azide, neutralized successively the effect of singlet oxygen.</description><identifier>ISSN: 0026-2617</identifier><identifier>EISSN: 1608-3237</identifier><identifier>DOI: 10.1134/S0026261719010119</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Ascorbic acid ; Bacteriochlorophyll ; Biomedical and Life Sciences ; Bleaching ; Chlorophyll ; Experimental Articles ; Histidine ; Imidazole ; Life Sciences ; Light-harvesting complex ; Medical Microbiology ; Microbiology ; Oxygen ; Sodium azide ; Sulfur ; Vitamin E</subject><ispartof>Microbiology (New York), 2019, Vol.88 (1), p.79-86</ispartof><rights>Pleiades Publishing, Ltd. 2019</rights><rights>Copyright Springer Nature B.V. 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-21faf5a252c314ac8367cc4c8b34b1161ddc7fb80888d44c1de016c6090874893</citedby><cites>FETCH-LOGICAL-c316t-21faf5a252c314ac8367cc4c8b34b1161ddc7fb80888d44c1de016c6090874893</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S0026261719010119$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S0026261719010119$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids></links><search><creatorcontrib>Makhneva, Z. K.</creatorcontrib><creatorcontrib>Ashikhmin, A. A.</creatorcontrib><creatorcontrib>Bolshakov, M. A.</creatorcontrib><creatorcontrib>Moskalenko, A. A.</creatorcontrib><title>Quenchers Protect BChl850 from Action of Singlet Oxygen in the Membranes of a Sulfur Photosynthetic Bacterium Allochromatium vinosum Strain MSU</title><title>Microbiology (New York)</title><addtitle>Microbiology</addtitle><description>—
The effect of singlet oxygen was studied in the system of
Allochromatium
(
Alc.
)
vinosum
MSU membranes, rose bengal, and light (547−600nm) with and without a quencher. In the system without a quencher, bleaching of the BChl850 band of the LH2 light-harvesting complex was observed and an absorption peak emerged at 698 nm, which belonged to the oxidized product, 3-acetyl-chlorophyll. The efficiency of five quenchers of singlet oxygen for neutralization of the effect of singlet oxygen on bacteriochlorophyll in the light-harvesting complexes of the membranes
Alc. vinosum
MSU was studied: sodium ascorbate, histidine, imidazole, trolox, and sodium azide. All of them, with the exception of sodium azide, neutralized successively the effect of singlet oxygen.</description><subject>Ascorbic acid</subject><subject>Bacteriochlorophyll</subject><subject>Biomedical and Life Sciences</subject><subject>Bleaching</subject><subject>Chlorophyll</subject><subject>Experimental Articles</subject><subject>Histidine</subject><subject>Imidazole</subject><subject>Life Sciences</subject><subject>Light-harvesting complex</subject><subject>Medical Microbiology</subject><subject>Microbiology</subject><subject>Oxygen</subject><subject>Sodium azide</subject><subject>Sulfur</subject><subject>Vitamin E</subject><issn>0026-2617</issn><issn>1608-3237</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kF1LwzAUhoMoOKc_wLuA19WctE2zy234BRtO6q5LmqZrR5fMJBX3K_zLpkzwQrw6HM7zPgdehK6B3ALEyV1OCGWUQQYTAgRgcoJGwAiPYhpnp2g0nKPhfo4unNsSQlKapiP09dorLRtlHV5Z45X0eDZvOp4SXFuzw1PpW6OxqXHe6k2nPH75PGyUxq3GvlF4qXalFVq5ARE477u6t3jVGG_cQQfCtxLPhPTKtn3QdZ2RTRALP6wfrTYuzNxbEYTLfH2JzmrROXX1M8do_XD_Nn-KFi-Pz_PpIpIxMB9RqEWdCprSsCdC8phlUiaSl3FSAjCoKpnVJSec8ypJJFSKAJOMTAjPEj6Jx-jm6N1b894r54ut6a0OLwtKQ6OMch4HCo6UtMY5q-pib9udsIcCSDH0XvzpPWToMeMCqzfK_pr_D30DzzWE9A</recordid><startdate>2019</startdate><enddate>2019</enddate><creator>Makhneva, Z. K.</creator><creator>Ashikhmin, A. A.</creator><creator>Bolshakov, M. A.</creator><creator>Moskalenko, A. A.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2019</creationdate><title>Quenchers Protect BChl850 from Action of Singlet Oxygen in the Membranes of a Sulfur Photosynthetic Bacterium Allochromatium vinosum Strain MSU</title><author>Makhneva, Z. K. ; Ashikhmin, A. A. ; Bolshakov, M. A. ; Moskalenko, A. A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-21faf5a252c314ac8367cc4c8b34b1161ddc7fb80888d44c1de016c6090874893</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Ascorbic acid</topic><topic>Bacteriochlorophyll</topic><topic>Biomedical and Life Sciences</topic><topic>Bleaching</topic><topic>Chlorophyll</topic><topic>Experimental Articles</topic><topic>Histidine</topic><topic>Imidazole</topic><topic>Life Sciences</topic><topic>Light-harvesting complex</topic><topic>Medical Microbiology</topic><topic>Microbiology</topic><topic>Oxygen</topic><topic>Sodium azide</topic><topic>Sulfur</topic><topic>Vitamin E</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Makhneva, Z. K.</creatorcontrib><creatorcontrib>Ashikhmin, A. A.</creatorcontrib><creatorcontrib>Bolshakov, M. A.</creatorcontrib><creatorcontrib>Moskalenko, A. A.</creatorcontrib><collection>CrossRef</collection><jtitle>Microbiology (New York)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Makhneva, Z. K.</au><au>Ashikhmin, A. A.</au><au>Bolshakov, M. A.</au><au>Moskalenko, A. A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quenchers Protect BChl850 from Action of Singlet Oxygen in the Membranes of a Sulfur Photosynthetic Bacterium Allochromatium vinosum Strain MSU</atitle><jtitle>Microbiology (New York)</jtitle><stitle>Microbiology</stitle><date>2019</date><risdate>2019</risdate><volume>88</volume><issue>1</issue><spage>79</spage><epage>86</epage><pages>79-86</pages><issn>0026-2617</issn><eissn>1608-3237</eissn><abstract>—
The effect of singlet oxygen was studied in the system of
Allochromatium
(
Alc.
)
vinosum
MSU membranes, rose bengal, and light (547−600nm) with and without a quencher. In the system without a quencher, bleaching of the BChl850 band of the LH2 light-harvesting complex was observed and an absorption peak emerged at 698 nm, which belonged to the oxidized product, 3-acetyl-chlorophyll. The efficiency of five quenchers of singlet oxygen for neutralization of the effect of singlet oxygen on bacteriochlorophyll in the light-harvesting complexes of the membranes
Alc. vinosum
MSU was studied: sodium ascorbate, histidine, imidazole, trolox, and sodium azide. All of them, with the exception of sodium azide, neutralized successively the effect of singlet oxygen.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S0026261719010119</doi><tpages>8</tpages></addata></record> |
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| ispartof | Microbiology (New York), 2019, Vol.88 (1), p.79-86 |
| issn | 0026-2617 1608-3237 |
| language | eng |
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| subjects | Ascorbic acid Bacteriochlorophyll Biomedical and Life Sciences Bleaching Chlorophyll Experimental Articles Histidine Imidazole Life Sciences Light-harvesting complex Medical Microbiology Microbiology Oxygen Sodium azide Sulfur Vitamin E |
| title | Quenchers Protect BChl850 from Action of Singlet Oxygen in the Membranes of a Sulfur Photosynthetic Bacterium Allochromatium vinosum Strain MSU |
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