Iron superoxide dismutase protects against chilling damage in the cyanobacterium Synechococcus species PCC7942
A strain of Synechococcus sp. PCC7942 lacking functional Fe superoxide dismutase (SOD), designated sodB-, was characterized by its growth rate, photosynthetic pigments, inhibition of photosynthetic electron transport activity, and total SOD activity at 0 degrees C, 10 degrees C, 17 degrees C, and 27...
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description | A strain of Synechococcus sp. PCC7942 lacking functional Fe superoxide dismutase (SOD), designated sodB-, was characterized by its growth rate, photosynthetic pigments, inhibition of photosynthetic electron transport activity, and total SOD activity at 0 degrees C, 10 degrees C, 17 degrees C, and 27 degrees C in moderate light. At 27 degrees C, the sodB- and wild-type strains had similar growth rates, chlorophyll and carotenoid contents, and cyclic photosynthetic electron transport activity. The sodB- strain was more sensitive to chilling stress at 17 degrees C than the wild type, indicating a role for FeSOD in protection against photooxidative damage during moderate chilling in light. However, both the wild-type and sodB- strains exhibited similar chilling damage at 0 degrees C and 10 degrees C, indicating that the FeSOD does not provide protection against severe chilling stress in light. Total SOD activity was lower in the sodB- strain than in the wild type at 17 degrees C and 27 degrees C. Total SOD activity decreased with decreasing temperature in both strains but more so in the wild type. Total SOD activity was equal in the two strains when assayed at 0 degrees C. |
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PCC7942 lacking functional Fe superoxide dismutase (SOD), designated sodB-, was characterized by its growth rate, photosynthetic pigments, inhibition of photosynthetic electron transport activity, and total SOD activity at 0 degrees C, 10 degrees C, 17 degrees C, and 27 degrees C in moderate light. At 27 degrees C, the sodB- and wild-type strains had similar growth rates, chlorophyll and carotenoid contents, and cyclic photosynthetic electron transport activity. The sodB- strain was more sensitive to chilling stress at 17 degrees C than the wild type, indicating a role for FeSOD in protection against photooxidative damage during moderate chilling in light. However, both the wild-type and sodB- strains exhibited similar chilling damage at 0 degrees C and 10 degrees C, indicating that the FeSOD does not provide protection against severe chilling stress in light. Total SOD activity was lower in the sodB- strain than in the wild type at 17 degrees C and 27 degrees C. Total SOD activity decreased with decreasing temperature in both strains but more so in the wild type. Total SOD activity was equal in the two strains when assayed at 0 degrees C.</description><identifier>ISSN: 0032-0889</identifier><identifier>EISSN: 1532-2548</identifier><identifier>DOI: 10.1104/pp.120.1.275</identifier><identifier>PMID: 10318704</identifier><identifier>CODEN: PPHYA5</identifier><language>eng</language><publisher>Rockville, MD: American Society of Plant Physiologists</publisher><subject>abiotic stress ; ambient temperature ; Antioxidants ; Bacteriology ; Biological and medical sciences ; carotenoids ; chemical composition ; chlorophyll ; Chlorophylls ; Cooling ; Cyanobacteria ; electron transfer ; Environmental and Stress Physiology ; enzyme activity ; Fundamental and applied biological sciences. Psychology ; growth rate ; inhibition ; Membrane lipids ; Metabolism. Enzymes ; Microbiology ; mutants ; Oxidation ; Oxidative stress ; Photons ; photosynthesis ; Physical agents ; Plant physiology and development ; Plants ; sodB gene ; strain differences ; superoxide dismutase ; Superoxides ; Synechococcus ; Vegetative apparatus, growth and morphogenesis. Senescence</subject><ispartof>Plant physiology (Bethesda), 1999-05, Vol.120 (1), p.275-282</ispartof><rights>Copyright 1999 American Society of Plant Physiologists</rights><rights>1999 INIST-CNRS</rights><rights>Copyright American Society of Plant Physiologists May 1999</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/4278798$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/4278798$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,27924,27925,58017,58250</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1807612$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/10318704$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Thomas, D.J</creatorcontrib><creatorcontrib>Thomas, J.B</creatorcontrib><creatorcontrib>Prier, S.D</creatorcontrib><creatorcontrib>Nasso, N.E</creatorcontrib><creatorcontrib>Herbert, S.K</creatorcontrib><title>Iron superoxide dismutase protects against chilling damage in the cyanobacterium Synechococcus species PCC7942</title><title>Plant physiology (Bethesda)</title><addtitle>Plant Physiol</addtitle><description>A strain of Synechococcus sp. PCC7942 lacking functional Fe superoxide dismutase (SOD), designated sodB-, was characterized by its growth rate, photosynthetic pigments, inhibition of photosynthetic electron transport activity, and total SOD activity at 0 degrees C, 10 degrees C, 17 degrees C, and 27 degrees C in moderate light. At 27 degrees C, the sodB- and wild-type strains had similar growth rates, chlorophyll and carotenoid contents, and cyclic photosynthetic electron transport activity. The sodB- strain was more sensitive to chilling stress at 17 degrees C than the wild type, indicating a role for FeSOD in protection against photooxidative damage during moderate chilling in light. However, both the wild-type and sodB- strains exhibited similar chilling damage at 0 degrees C and 10 degrees C, indicating that the FeSOD does not provide protection against severe chilling stress in light. Total SOD activity was lower in the sodB- strain than in the wild type at 17 degrees C and 27 degrees C. Total SOD activity decreased with decreasing temperature in both strains but more so in the wild type. Total SOD activity was equal in the two strains when assayed at 0 degrees C.</description><subject>abiotic stress</subject><subject>ambient temperature</subject><subject>Antioxidants</subject><subject>Bacteriology</subject><subject>Biological and medical sciences</subject><subject>carotenoids</subject><subject>chemical composition</subject><subject>chlorophyll</subject><subject>Chlorophylls</subject><subject>Cooling</subject><subject>Cyanobacteria</subject><subject>electron transfer</subject><subject>Environmental and Stress Physiology</subject><subject>enzyme activity</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>growth rate</subject><subject>inhibition</subject><subject>Membrane lipids</subject><subject>Metabolism. Enzymes</subject><subject>Microbiology</subject><subject>mutants</subject><subject>Oxidation</subject><subject>Oxidative stress</subject><subject>Photons</subject><subject>photosynthesis</subject><subject>Physical agents</subject><subject>Plant physiology and development</subject><subject>Plants</subject><subject>sodB gene</subject><subject>strain differences</subject><subject>superoxide dismutase</subject><subject>Superoxides</subject><subject>Synechococcus</subject><subject>Vegetative apparatus, growth and morphogenesis. 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Psychology</topic><topic>growth rate</topic><topic>inhibition</topic><topic>Membrane lipids</topic><topic>Metabolism. Enzymes</topic><topic>Microbiology</topic><topic>mutants</topic><topic>Oxidation</topic><topic>Oxidative stress</topic><topic>Photons</topic><topic>photosynthesis</topic><topic>Physical agents</topic><topic>Plant physiology and development</topic><topic>Plants</topic><topic>sodB gene</topic><topic>strain differences</topic><topic>superoxide dismutase</topic><topic>Superoxides</topic><topic>Synechococcus</topic><topic>Vegetative apparatus, growth and morphogenesis. Senescence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Thomas, D.J</creatorcontrib><creatorcontrib>Thomas, J.B</creatorcontrib><creatorcontrib>Prier, S.D</creatorcontrib><creatorcontrib>Nasso, N.E</creatorcontrib><creatorcontrib>Herbert, S.K</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>ProQuest Central (Corporate)</collection><collection>Docstoc</collection><collection>Agricultural Science Collection</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>ProQuest Pharma Collection</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Research Library (Corporate)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>ASFA: Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Plant physiology (Bethesda)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Thomas, D.J</au><au>Thomas, J.B</au><au>Prier, S.D</au><au>Nasso, N.E</au><au>Herbert, S.K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Iron superoxide dismutase protects against chilling damage in the cyanobacterium Synechococcus species PCC7942</atitle><jtitle>Plant physiology (Bethesda)</jtitle><addtitle>Plant Physiol</addtitle><date>1999-05-01</date><risdate>1999</risdate><volume>120</volume><issue>1</issue><spage>275</spage><epage>282</epage><pages>275-282</pages><issn>0032-0889</issn><eissn>1532-2548</eissn><coden>PPHYA5</coden><abstract>A strain of Synechococcus sp. PCC7942 lacking functional Fe superoxide dismutase (SOD), designated sodB-, was characterized by its growth rate, photosynthetic pigments, inhibition of photosynthetic electron transport activity, and total SOD activity at 0 degrees C, 10 degrees C, 17 degrees C, and 27 degrees C in moderate light. At 27 degrees C, the sodB- and wild-type strains had similar growth rates, chlorophyll and carotenoid contents, and cyclic photosynthetic electron transport activity. The sodB- strain was more sensitive to chilling stress at 17 degrees C than the wild type, indicating a role for FeSOD in protection against photooxidative damage during moderate chilling in light. However, both the wild-type and sodB- strains exhibited similar chilling damage at 0 degrees C and 10 degrees C, indicating that the FeSOD does not provide protection against severe chilling stress in light. Total SOD activity was lower in the sodB- strain than in the wild type at 17 degrees C and 27 degrees C. Total SOD activity decreased with decreasing temperature in both strains but more so in the wild type. Total SOD activity was equal in the two strains when assayed at 0 degrees C.</abstract><cop>Rockville, MD</cop><pub>American Society of Plant Physiologists</pub><pmid>10318704</pmid><doi>10.1104/pp.120.1.275</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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source | JSTOR Archive Collection A-Z Listing; Oxford University Press Journals All Titles (1996-Current); EZB-FREE-00999 freely available EZB journals |
subjects | abiotic stress ambient temperature Antioxidants Bacteriology Biological and medical sciences carotenoids chemical composition chlorophyll Chlorophylls Cooling Cyanobacteria electron transfer Environmental and Stress Physiology enzyme activity Fundamental and applied biological sciences. Psychology growth rate inhibition Membrane lipids Metabolism. Enzymes Microbiology mutants Oxidation Oxidative stress Photons photosynthesis Physical agents Plant physiology and development Plants sodB gene strain differences superoxide dismutase Superoxides Synechococcus Vegetative apparatus, growth and morphogenesis. Senescence |
title | Iron superoxide dismutase protects against chilling damage in the cyanobacterium Synechococcus species PCC7942 |
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