Influence of substituted 1,4-anthraquinones on the chlorophyll fluorescence and photochemical activity of pea thylakoid membranes
The effect of substituted 1,4-anthraquinones on the photochemical activity and chlorophyll fluorescence of thylakoid membranes was examined. Both the fluorescence and the photochemical activity depend on the 1,4-anthraquinone substituent. Stronger quinone-induced quenching of the chlorophyll fluores...
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| Veröffentlicht in: | Journal of photochemistry and photobiology. B, Biology Biology, 2003-05, Vol.70 (2), p.75-80 |
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| container_title | Journal of photochemistry and photobiology. B, Biology |
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| creator | Apostolova, Emilia Markova, Tzvetelina Filipova, Tzvetanka Molina, Maria T Taneva, Stefka G |
| description | The effect of substituted 1,4-anthraquinones on the photochemical activity and chlorophyll fluorescence of thylakoid membranes was examined. Both the fluorescence and the photochemical activity depend on the 1,4-anthraquinone substituent. Stronger quinone-induced quenching of the chlorophyll fluorescence than quinone-induced changes in the activity of photosystem II is observed. The type (Cl or Br) and the position (Cl) of the chalogen atom strongly influence the degree of inhibition of PSII electron transport and the quenching of chlorophyll fluorescence. The data suggest that the quenching of chlorophyll fluorescence is due rather to the interaction of the 1,4-anthraquinones and chlorophyll molecules than to an indirect effect caused by stimulation of the photochemistry. |
| doi_str_mv | 10.1016/S1011-1344(03)00057-5 |
| format | Article |
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Both the fluorescence and the photochemical activity depend on the 1,4-anthraquinone substituent. Stronger quinone-induced quenching of the chlorophyll fluorescence than quinone-induced changes in the activity of photosystem II is observed. The type (Cl or Br) and the position (Cl) of the chalogen atom strongly influence the degree of inhibition of PSII electron transport and the quenching of chlorophyll fluorescence. The data suggest that the quenching of chlorophyll fluorescence is due rather to the interaction of the 1,4-anthraquinones and chlorophyll molecules than to an indirect effect caused by stimulation of the photochemistry.</description><identifier>ISSN: 1011-1344</identifier><identifier>EISSN: 1873-2682</identifier><identifier>DOI: 10.1016/S1011-1344(03)00057-5</identifier><identifier>PMID: 12849697</identifier><language>eng</language><publisher>Switzerland: Elsevier B.V</publisher><subject>1,4-Anthraquinones ; Anthraquinones - chemistry ; Chlorophyll - chemistry ; Chlorophyll fluorescence quenching ; Electrons ; Photochemical activity ; Photochemistry ; Pisum sativum - chemistry ; Spectrometry, Fluorescence ; Thylakoid membranes ; Thylakoids - chemistry</subject><ispartof>Journal of photochemistry and photobiology. 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B, Biology</title><addtitle>J Photochem Photobiol B</addtitle><description>The effect of substituted 1,4-anthraquinones on the photochemical activity and chlorophyll fluorescence of thylakoid membranes was examined. Both the fluorescence and the photochemical activity depend on the 1,4-anthraquinone substituent. Stronger quinone-induced quenching of the chlorophyll fluorescence than quinone-induced changes in the activity of photosystem II is observed. The type (Cl or Br) and the position (Cl) of the chalogen atom strongly influence the degree of inhibition of PSII electron transport and the quenching of chlorophyll fluorescence. The data suggest that the quenching of chlorophyll fluorescence is due rather to the interaction of the 1,4-anthraquinones and chlorophyll molecules than to an indirect effect caused by stimulation of the photochemistry.</description><subject>1,4-Anthraquinones</subject><subject>Anthraquinones - chemistry</subject><subject>Chlorophyll - chemistry</subject><subject>Chlorophyll fluorescence quenching</subject><subject>Electrons</subject><subject>Photochemical activity</subject><subject>Photochemistry</subject><subject>Pisum sativum - chemistry</subject><subject>Spectrometry, Fluorescence</subject><subject>Thylakoid membranes</subject><subject>Thylakoids - chemistry</subject><issn>1011-1344</issn><issn>1873-2682</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkM1u3CAURlGVqPnrIzRiFTVSnYDBxl5VVZS0kSJlkWSNMFzLNNg4gCPNsm9ePDNVl90Ai_N993IQ-kzJFSW0vn7KJy0o4_wLYZeEkEoU1Qd0TBvBirJuyoP8_oscoZMYf5GVqsVHdETLhrd1K47R7_updwtMGrDvcVy6mGxaEhhMv_JCTWkI6m2xk58gYj_hNADWg_PBz8PGOZzDPkDU2wY1GTwPPnk9wGi1cljpZN9t2qzlM6gc3zj16q3BI4xdULn1DB32ykX4tL9P0cvd7fPNz-Lh8cf9zfeHQrOapqITFde07xrF-7rVWlHTdrzuSwoM-i5DxpRcGMF4Q5RhoEsBWpU1py3l1LBTdLHrnYN_WyAmOdq8t3N5Cb9EmYNclC3PYLUDdfAxBujlHOyowkZSIlf3cutermIlYXLrXlY5d74fsHQjmH-pvewMfNsBkL_5biHIqO0qztgAOknj7X9G_AH_75cP</recordid><startdate>20030501</startdate><enddate>20030501</enddate><creator>Apostolova, Emilia</creator><creator>Markova, Tzvetelina</creator><creator>Filipova, Tzvetanka</creator><creator>Molina, Maria T</creator><creator>Taneva, Stefka G</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20030501</creationdate><title>Influence of substituted 1,4-anthraquinones on the chlorophyll fluorescence and photochemical activity of pea thylakoid membranes</title><author>Apostolova, Emilia ; Markova, Tzvetelina ; Filipova, Tzvetanka ; Molina, Maria T ; Taneva, Stefka G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c361t-b754c1fb8a4f69cca1d9b46f21e3efbc36dd247d73480ad3ec27eca26419141d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>1,4-Anthraquinones</topic><topic>Anthraquinones - chemistry</topic><topic>Chlorophyll - chemistry</topic><topic>Chlorophyll fluorescence quenching</topic><topic>Electrons</topic><topic>Photochemical activity</topic><topic>Photochemistry</topic><topic>Pisum sativum - chemistry</topic><topic>Spectrometry, Fluorescence</topic><topic>Thylakoid membranes</topic><topic>Thylakoids - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Apostolova, Emilia</creatorcontrib><creatorcontrib>Markova, Tzvetelina</creatorcontrib><creatorcontrib>Filipova, Tzvetanka</creatorcontrib><creatorcontrib>Molina, Maria T</creatorcontrib><creatorcontrib>Taneva, Stefka G</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of photochemistry and photobiology. B, Biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Apostolova, Emilia</au><au>Markova, Tzvetelina</au><au>Filipova, Tzvetanka</au><au>Molina, Maria T</au><au>Taneva, Stefka G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of substituted 1,4-anthraquinones on the chlorophyll fluorescence and photochemical activity of pea thylakoid membranes</atitle><jtitle>Journal of photochemistry and photobiology. B, Biology</jtitle><addtitle>J Photochem Photobiol B</addtitle><date>2003-05-01</date><risdate>2003</risdate><volume>70</volume><issue>2</issue><spage>75</spage><epage>80</epage><pages>75-80</pages><issn>1011-1344</issn><eissn>1873-2682</eissn><abstract>The effect of substituted 1,4-anthraquinones on the photochemical activity and chlorophyll fluorescence of thylakoid membranes was examined. Both the fluorescence and the photochemical activity depend on the 1,4-anthraquinone substituent. Stronger quinone-induced quenching of the chlorophyll fluorescence than quinone-induced changes in the activity of photosystem II is observed. The type (Cl or Br) and the position (Cl) of the chalogen atom strongly influence the degree of inhibition of PSII electron transport and the quenching of chlorophyll fluorescence. The data suggest that the quenching of chlorophyll fluorescence is due rather to the interaction of the 1,4-anthraquinones and chlorophyll molecules than to an indirect effect caused by stimulation of the photochemistry.</abstract><cop>Switzerland</cop><pub>Elsevier B.V</pub><pmid>12849697</pmid><doi>10.1016/S1011-1344(03)00057-5</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of photochemistry and photobiology. B, Biology, 2003-05, Vol.70 (2), p.75-80 |
| issn | 1011-1344 1873-2682 |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | 1,4-Anthraquinones Anthraquinones - chemistry Chlorophyll - chemistry Chlorophyll fluorescence quenching Electrons Photochemical activity Photochemistry Pisum sativum - chemistry Spectrometry, Fluorescence Thylakoid membranes Thylakoids - chemistry |
| title | Influence of substituted 1,4-anthraquinones on the chlorophyll fluorescence and photochemical activity of pea thylakoid membranes |
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