The acid stress response of the cyanobacterium Synechocystissp. strain PCC 6308
The cyanobacterium Synechocystissp. strain PCC 6308 has been shown to exhibit predictable physiological responses to acid stress. Originally isolated from a Wisconsin lake, this cyanobacterium grows optimally under alkaline conditions in the laboratory. After acid stress at a pH of between 4.4 and 7...
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| Veröffentlicht in: | Archives of microbiology 2002-06, Vol.177 (6), p.486-493 |
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| creator | Huang, Jean J Kolodny, Nancy H Redfearn, Jennifer T Allen, Mary M |
| description | The cyanobacterium Synechocystissp. strain PCC 6308 has been shown to exhibit predictable physiological responses to acid stress. Originally isolated from a Wisconsin lake, this cyanobacterium grows optimally under alkaline conditions in the laboratory. After acid stress at a pH of between 4.4 and 7.7, cells return to exponential growth following a lag phase. The organism's response to this tolerable acid stress involves cell concentration-dependent neutralization of the external medium to pH 6 or above within 5 min, maintenance of a transmembrane pH gradient, and maintenance of photosystem II efficiency. Lethal acid stress, at a pH below 4.4, results in the formation of aggregates of denatured proteins observed as granules near the cell periphery, the disruption of the transmembrane pH gradient, cell color change to blue, and damage to photosystem II. |
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Originally isolated from a Wisconsin lake, this cyanobacterium grows optimally under alkaline conditions in the laboratory. After acid stress at a pH of between 4.4 and 7.7, cells return to exponential growth following a lag phase. The organism's response to this tolerable acid stress involves cell concentration-dependent neutralization of the external medium to pH 6 or above within 5 min, maintenance of a transmembrane pH gradient, and maintenance of photosystem II efficiency. Lethal acid stress, at a pH below 4.4, results in the formation of aggregates of denatured proteins observed as granules near the cell periphery, the disruption of the transmembrane pH gradient, cell color change to blue, and damage to photosystem II.</description><identifier>ISSN: 0302-8933</identifier><identifier>PMID: 12029394</identifier><language>eng</language><publisher>Germany</publisher><subject>Adaptation, Physiological ; Chlorophyll - analysis ; Cyanobacteria - growth & development ; Cyanobacteria - metabolism ; Cyanobacteria - physiology ; Cytoplasmic Granules - chemistry ; Electrophoresis, Polyacrylamide Gel ; Fluorescence ; Hydrogen-Ion Concentration ; Oxidative Stress</subject><ispartof>Archives of microbiology, 2002-06, Vol.177 (6), p.486-493</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12029394$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Huang, Jean J</creatorcontrib><creatorcontrib>Kolodny, Nancy H</creatorcontrib><creatorcontrib>Redfearn, Jennifer T</creatorcontrib><creatorcontrib>Allen, Mary M</creatorcontrib><title>The acid stress response of the cyanobacterium Synechocystissp. strain PCC 6308</title><title>Archives of microbiology</title><addtitle>Arch Microbiol</addtitle><description>The cyanobacterium Synechocystissp. strain PCC 6308 has been shown to exhibit predictable physiological responses to acid stress. Originally isolated from a Wisconsin lake, this cyanobacterium grows optimally under alkaline conditions in the laboratory. After acid stress at a pH of between 4.4 and 7.7, cells return to exponential growth following a lag phase. The organism's response to this tolerable acid stress involves cell concentration-dependent neutralization of the external medium to pH 6 or above within 5 min, maintenance of a transmembrane pH gradient, and maintenance of photosystem II efficiency. Lethal acid stress, at a pH below 4.4, results in the formation of aggregates of denatured proteins observed as granules near the cell periphery, the disruption of the transmembrane pH gradient, cell color change to blue, and damage to photosystem II.</description><subject>Adaptation, Physiological</subject><subject>Chlorophyll - analysis</subject><subject>Cyanobacteria - growth & development</subject><subject>Cyanobacteria - metabolism</subject><subject>Cyanobacteria - physiology</subject><subject>Cytoplasmic Granules - chemistry</subject><subject>Electrophoresis, Polyacrylamide Gel</subject><subject>Fluorescence</subject><subject>Hydrogen-Ion Concentration</subject><subject>Oxidative Stress</subject><issn>0302-8933</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo1UMtKxDAUzUJxxtFfkKzcVdIkzWMpxRcMjDCzL0l6w1Tapva2i_69FUcunHPgPBb3imyZYDwzVogNuUX8Yiznxpgbssk541ZYuSWH0xmoC01NcRoBka4wpB6Bpkin1QuL65N3YYKxmTt6XHoI5xQWnBrE4em35pqefpYlVYKZO3IdXYtwf-EdOb6-nMr3bH94-yif99lQSJkFZ2TBLJN55CACjwUDrZS23jOuuZMKogZfgHMy8FVHybRTBrytfSjEjjz-rQ5j-p4Bp6prMEDbuh7SjJXO11Nar8GHS3D2HdTVMDadG5fq_wHiB0P9Viw</recordid><startdate>200206</startdate><enddate>200206</enddate><creator>Huang, Jean J</creator><creator>Kolodny, Nancy H</creator><creator>Redfearn, Jennifer T</creator><creator>Allen, Mary M</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>200206</creationdate><title>The acid stress response of the cyanobacterium Synechocystissp. strain PCC 6308</title><author>Huang, Jean J ; Kolodny, Nancy H ; Redfearn, Jennifer T ; Allen, Mary M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p544-ca84509041f2e3c2f50e76679bb0272a46ef7eb5eaa4c2ef7f407a68eb9dbc53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Adaptation, Physiological</topic><topic>Chlorophyll - analysis</topic><topic>Cyanobacteria - growth & development</topic><topic>Cyanobacteria - metabolism</topic><topic>Cyanobacteria - physiology</topic><topic>Cytoplasmic Granules - chemistry</topic><topic>Electrophoresis, Polyacrylamide Gel</topic><topic>Fluorescence</topic><topic>Hydrogen-Ion Concentration</topic><topic>Oxidative Stress</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huang, Jean J</creatorcontrib><creatorcontrib>Kolodny, Nancy H</creatorcontrib><creatorcontrib>Redfearn, Jennifer T</creatorcontrib><creatorcontrib>Allen, Mary M</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Archives of microbiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huang, Jean J</au><au>Kolodny, Nancy H</au><au>Redfearn, Jennifer T</au><au>Allen, Mary M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The acid stress response of the cyanobacterium Synechocystissp. strain PCC 6308</atitle><jtitle>Archives of microbiology</jtitle><addtitle>Arch Microbiol</addtitle><date>2002-06</date><risdate>2002</risdate><volume>177</volume><issue>6</issue><spage>486</spage><epage>493</epage><pages>486-493</pages><issn>0302-8933</issn><abstract>The cyanobacterium Synechocystissp. strain PCC 6308 has been shown to exhibit predictable physiological responses to acid stress. Originally isolated from a Wisconsin lake, this cyanobacterium grows optimally under alkaline conditions in the laboratory. After acid stress at a pH of between 4.4 and 7.7, cells return to exponential growth following a lag phase. The organism's response to this tolerable acid stress involves cell concentration-dependent neutralization of the external medium to pH 6 or above within 5 min, maintenance of a transmembrane pH gradient, and maintenance of photosystem II efficiency. Lethal acid stress, at a pH below 4.4, results in the formation of aggregates of denatured proteins observed as granules near the cell periphery, the disruption of the transmembrane pH gradient, cell color change to blue, and damage to photosystem II.</abstract><cop>Germany</cop><pmid>12029394</pmid><tpages>8</tpages></addata></record> |
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| subjects | Adaptation, Physiological Chlorophyll - analysis Cyanobacteria - growth & development Cyanobacteria - metabolism Cyanobacteria - physiology Cytoplasmic Granules - chemistry Electrophoresis, Polyacrylamide Gel Fluorescence Hydrogen-Ion Concentration Oxidative Stress |
| title | The acid stress response of the cyanobacterium Synechocystissp. strain PCC 6308 |
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