Terminal oxidases of Chlorella pyrenoidosa
In studies of the kinetics of oxygen uptake by glucose-stimulated Chlorella pyrenoidosa, two terminal oxidases could be distinguished. The cytochrome oxidase of Chlorella has a $\text{K}m(\text{O}_{2})$ of 2.1 ± 0.3 μM, while the second oxidase has a $\text{K}m(\text{O}_{2})$ of 6.7 ± 0.5 μM, and a...
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| Veröffentlicht in: | Plant physiology (Bethesda) 1972-05, Vol.49 (5), p.775-778 |
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| container_end_page | 778 |
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| container_issue | 5 |
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| container_title | Plant physiology (Bethesda) |
| container_volume | 49 |
| creator | Sargent, D.F Taylor, C.P.S |
| description | In studies of the kinetics of oxygen uptake by glucose-stimulated Chlorella pyrenoidosa, two terminal oxidases could be distinguished. The cytochrome oxidase of Chlorella has a $\text{K}m(\text{O}_{2})$ of 2.1 ± 0.3 μM, while the second oxidase has a $\text{K}m(\text{O}_{2})$ of 6.7 ± 0.5 μM, and a maximum capacity about one-quarter of that of the cytochrome system. The identity of the second oxidase is unknown, but it is not inhibited by carbon monoxide, 1 mM cyanide, 0.1 mM thiocyanate, or 1 mM 8-hydroxyquinoline. In fresh cultures, the second oxidase accounts for at most 35% of the total oxygen uptake. |
| doi_str_mv | 10.1104/pp.49.5.775 |
| format | Article |
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The cytochrome oxidase of Chlorella has a $\text{K}m(\text{O}_{2})$ of 2.1 ± 0.3 μM, while the second oxidase has a $\text{K}m(\text{O}_{2})$ of 6.7 ± 0.5 μM, and a maximum capacity about one-quarter of that of the cytochrome system. The identity of the second oxidase is unknown, but it is not inhibited by carbon monoxide, 1 mM cyanide, 0.1 mM thiocyanate, or 1 mM 8-hydroxyquinoline. In fresh cultures, the second oxidase accounts for at most 35% of the total oxygen uptake.</description><identifier>ISSN: 0032-0889</identifier><identifier>EISSN: 1532-2548</identifier><identifier>DOI: 10.1104/pp.49.5.775</identifier><identifier>PMID: 16658046</identifier><language>eng</language><publisher>United States: American Society of Plant Physiologists</publisher><subject>Carbon monoxide ; Cyanide resistant respiration ; Cyanides ; Cytochromes ; Kinetics ; Mitochondria ; Oxidases ; Oxygen ; plant biochemistry ; plant physiology ; Respiration ; Thiocyanates</subject><ispartof>Plant physiology (Bethesda), 1972-05, Vol.49 (5), p.775-778</ispartof><rights>Copyright 1972 The American Society of Plant Physiologists</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c389t-4e61a4f9fba8beb98969fa7838a402f279e520bcf6611fa1fbe761190c1b39d13</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/4262819$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/4262819$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,776,780,799,881,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16658046$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sargent, D.F</creatorcontrib><creatorcontrib>Taylor, C.P.S</creatorcontrib><title>Terminal oxidases of Chlorella pyrenoidosa</title><title>Plant physiology (Bethesda)</title><addtitle>Plant Physiol</addtitle><description>In studies of the kinetics of oxygen uptake by glucose-stimulated Chlorella pyrenoidosa, two terminal oxidases could be distinguished. The cytochrome oxidase of Chlorella has a $\text{K}m(\text{O}_{2})$ of 2.1 ± 0.3 μM, while the second oxidase has a $\text{K}m(\text{O}_{2})$ of 6.7 ± 0.5 μM, and a maximum capacity about one-quarter of that of the cytochrome system. The identity of the second oxidase is unknown, but it is not inhibited by carbon monoxide, 1 mM cyanide, 0.1 mM thiocyanate, or 1 mM 8-hydroxyquinoline. In fresh cultures, the second oxidase accounts for at most 35% of the total oxygen uptake.</description><subject>Carbon monoxide</subject><subject>Cyanide resistant respiration</subject><subject>Cyanides</subject><subject>Cytochromes</subject><subject>Kinetics</subject><subject>Mitochondria</subject><subject>Oxidases</subject><subject>Oxygen</subject><subject>plant biochemistry</subject><subject>plant physiology</subject><subject>Respiration</subject><subject>Thiocyanates</subject><issn>0032-0889</issn><issn>1532-2548</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1972</creationdate><recordtype>article</recordtype><recordid>eNpVkU1PAjEQhhujEURPXo1yM9GAM2232x48GOJXQuJBODfdpYUly3Ztwci_dxGCeppJ3me-3iHkHKGPCPyurvtc9ZN-miYHpI0Joz2acHlI2gBNDlKqFjmJcQ4AyJAfkxYKkUjgok1uRjYsisqUXf9VTEy0setddzArfbBlabr1OtjKFxMfzSk5cqaM9mwXO2T89DgavPSGb8-vg4dhL2dSLXvcCjTcKZcZmdlMSSWUM6lk0nCgjqbKJhSy3AmB6Ay6zKZNpiDHjKkJsg653_atV9nCTnJbLYMpdR2KhQlr7U2h_ytVMdNT_6mZEJBAU3-9qw_-Y2XjUi-KmG-uqaxfRZ0yxiVnqBrydkvmwccYrNsPQdAbb3Vda650ohtvG_ry716_7M7MBrjYAvO49GGvcyqo_Jl2tZWd8dpMQxH1-J02LwFKFYJA9g3WGofY</recordid><startdate>19720501</startdate><enddate>19720501</enddate><creator>Sargent, D.F</creator><creator>Taylor, C.P.S</creator><general>American Society of Plant Physiologists</general><scope>FBQ</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>19720501</creationdate><title>Terminal oxidases of Chlorella pyrenoidosa</title><author>Sargent, D.F ; Taylor, C.P.S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c389t-4e61a4f9fba8beb98969fa7838a402f279e520bcf6611fa1fbe761190c1b39d13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1972</creationdate><topic>Carbon monoxide</topic><topic>Cyanide resistant respiration</topic><topic>Cyanides</topic><topic>Cytochromes</topic><topic>Kinetics</topic><topic>Mitochondria</topic><topic>Oxidases</topic><topic>Oxygen</topic><topic>plant biochemistry</topic><topic>plant physiology</topic><topic>Respiration</topic><topic>Thiocyanates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sargent, D.F</creatorcontrib><creatorcontrib>Taylor, C.P.S</creatorcontrib><collection>AGRIS</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Plant physiology (Bethesda)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sargent, D.F</au><au>Taylor, C.P.S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Terminal oxidases of Chlorella pyrenoidosa</atitle><jtitle>Plant physiology (Bethesda)</jtitle><addtitle>Plant Physiol</addtitle><date>1972-05-01</date><risdate>1972</risdate><volume>49</volume><issue>5</issue><spage>775</spage><epage>778</epage><pages>775-778</pages><issn>0032-0889</issn><eissn>1532-2548</eissn><abstract>In studies of the kinetics of oxygen uptake by glucose-stimulated Chlorella pyrenoidosa, two terminal oxidases could be distinguished. The cytochrome oxidase of Chlorella has a $\text{K}m(\text{O}_{2})$ of 2.1 ± 0.3 μM, while the second oxidase has a $\text{K}m(\text{O}_{2})$ of 6.7 ± 0.5 μM, and a maximum capacity about one-quarter of that of the cytochrome system. The identity of the second oxidase is unknown, but it is not inhibited by carbon monoxide, 1 mM cyanide, 0.1 mM thiocyanate, or 1 mM 8-hydroxyquinoline. In fresh cultures, the second oxidase accounts for at most 35% of the total oxygen uptake.</abstract><cop>United States</cop><pub>American Society of Plant Physiologists</pub><pmid>16658046</pmid><doi>10.1104/pp.49.5.775</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| source | Jstor Complete Legacy; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Carbon monoxide Cyanide resistant respiration Cyanides Cytochromes Kinetics Mitochondria Oxidases Oxygen plant biochemistry plant physiology Respiration Thiocyanates |
| title | Terminal oxidases of Chlorella pyrenoidosa |
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