Oxygen-induced membrane depolarizations in legume root nodules. Possible evidence for an osmoelectrical mechanism controlling nodule gas permeability
Various stresses trigger rapid and reversible decreases in the O2 permeability (P(O)) of legume root nodules. Several possible mechanisms have been proposed, but no supporting data have previously been presented that meet the requirements for both rapidity and reversibility. Stomatal regulation of g...
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| Veröffentlicht in: | Plant physiology (Bethesda) 1995-05, Vol.108 (1), p.235-240 |
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| creator | Denison, R.F. (University of California, Davis, CA.) Kinraide, T.B |
| description | Various stresses trigger rapid and reversible decreases in the O2 permeability (P(O)) of legume root nodules. Several possible mechanisms have been proposed, but no supporting data have previously been presented that meet the requirements for both rapidity and reversibility. Stomatal regulation of gas permeability in leaves involves electrically driven fluxes of inorganic osmoticants, so we investigated the possibility of a somewhat similar mechanism in nodules. We used microelectrodes to monitor membrane potential in intact, attached nodules of Glycine max, Medicago sativa, Lotus corniculatus, and Trifolium repens while controlling external O2 concentration and, in the case of G. max, measuring P(O) with a nodule oximeter. A 1- to 2-min exposure to 100 kPa O2 was found to induce rapid and reversible membrane depolarizations in nodules of each species. This depolarization (which, to our knowledge, is unique to nodules) is accompanied by reversible decreases in P(O) in G. max nodules. An osmoelectrical mechanism for control of nodule gas permeability, consistent with these data, is presented |
| doi_str_mv | 10.1104/pp.108.1.235 |
| format | Article |
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Possible evidence for an osmoelectrical mechanism controlling nodule gas permeability</title><source>Alma/SFX Local Collection</source><source>JSTOR</source><source>EZB Electronic Journals Library</source><creator>Denison, R.F. (University of California, Davis, CA.) ; Kinraide, T.B</creator><creatorcontrib>Denison, R.F. (University of California, Davis, CA.) ; Kinraide, T.B</creatorcontrib><description>Various stresses trigger rapid and reversible decreases in the O2 permeability (P(O)) of legume root nodules. Several possible mechanisms have been proposed, but no supporting data have previously been presented that meet the requirements for both rapidity and reversibility. Stomatal regulation of gas permeability in leaves involves electrically driven fluxes of inorganic osmoticants, so we investigated the possibility of a somewhat similar mechanism in nodules. We used microelectrodes to monitor membrane potential in intact, attached nodules of Glycine max, Medicago sativa, Lotus corniculatus, and Trifolium repens while controlling external O2 concentration and, in the case of G. max, measuring P(O) with a nodule oximeter. A 1- to 2-min exposure to 100 kPa O2 was found to induce rapid and reversible membrane depolarizations in nodules of each species. This depolarization (which, to our knowledge, is unique to nodules) is accompanied by reversible decreases in P(O) in G. max nodules. An osmoelectrical mechanism for control of nodule gas permeability, consistent with these data, is presented</description><identifier>ISSN: 0032-0889</identifier><identifier>EISSN: 1532-2548</identifier><identifier>DOI: 10.1104/pp.108.1.235</identifier><identifier>CODEN: PPHYA5</identifier><language>eng</language><publisher>Rockville, MD: American Society of Plant Physiologists</publisher><subject>ANATOMIA DE LA PLANTA ; ANATOMIE VEGETALE ; Biological and medical sciences ; Depolarization ; DIFERENCIAS BIOLOGICAS ; DIFFERENCE BIOLOGIQUE ; ECHANGE GAZEUX ; ESTOMA ; Fundamental and applied biological sciences. 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(University of California, Davis, CA.)</creatorcontrib><creatorcontrib>Kinraide, T.B</creatorcontrib><title>Oxygen-induced membrane depolarizations in legume root nodules. Possible evidence for an osmoelectrical mechanism controlling nodule gas permeability</title><title>Plant physiology (Bethesda)</title><description>Various stresses trigger rapid and reversible decreases in the O2 permeability (P(O)) of legume root nodules. Several possible mechanisms have been proposed, but no supporting data have previously been presented that meet the requirements for both rapidity and reversibility. Stomatal regulation of gas permeability in leaves involves electrically driven fluxes of inorganic osmoticants, so we investigated the possibility of a somewhat similar mechanism in nodules. We used microelectrodes to monitor membrane potential in intact, attached nodules of Glycine max, Medicago sativa, Lotus corniculatus, and Trifolium repens while controlling external O2 concentration and, in the case of G. max, measuring P(O) with a nodule oximeter. A 1- to 2-min exposure to 100 kPa O2 was found to induce rapid and reversible membrane depolarizations in nodules of each species. This depolarization (which, to our knowledge, is unique to nodules) is accompanied by reversible decreases in P(O) in G. max nodules. An osmoelectrical mechanism for control of nodule gas permeability, consistent with these data, is presented</description><subject>ANATOMIA DE LA PLANTA</subject><subject>ANATOMIE VEGETALE</subject><subject>Biological and medical sciences</subject><subject>Depolarization</subject><subject>DIFERENCIAS BIOLOGICAS</subject><subject>DIFFERENCE BIOLOGIQUE</subject><subject>ECHANGE GAZEUX</subject><subject>ESTOMA</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>GLYCINE MAX</subject><subject>INTERCAMBIO DE GASES</subject><subject>ION</subject><subject>IONES</subject><subject>Legumes</subject><subject>LOTUS CORNICULATUS</subject><subject>MEDICAGO SATIVA</subject><subject>MEDICION</subject><subject>MEMBRANAS CELULARES</subject><subject>MEMBRANE CELLULAIRE</subject><subject>MESURE</subject><subject>MOUVEMENT</subject><subject>MOVIMIENTO</subject><subject>NODOSITE RACINAIRE</subject><subject>Nodules</subject><subject>NUDOSIDADES RADICULARES</subject><subject>OSMOREGULACION</subject><subject>OSMOREGULATION</subject><subject>OXIGENO</subject><subject>Oxygen</subject><subject>OXYGENE</subject><subject>Parasitism and symbiosis</subject><subject>PERMEABILIDAD</subject><subject>PERMEABILITE</subject><subject>Physiological regulation</subject><subject>Plant cells</subject><subject>Plant physiology and development</subject><subject>Plant-Microbe and Plant-Insect Interactions</subject><subject>Plants</subject><subject>POTENCIAL ELECTRICO</subject><subject>POTENTIEL ELECTRIQUE</subject><subject>PROPIEDADES OPTICAS</subject><subject>PROPRIETE OPTIQUE</subject><subject>Respiration</subject><subject>RHIZOBIUM</subject><subject>Root nodules</subject><subject>SIMBIOSIS</subject><subject>Soybeans</subject><subject>STOMATE</subject><subject>SYMBIOSE</subject><subject>Symbiosis</subject><subject>TRANSPIRACION</subject><subject>TRANSPIRATION</subject><subject>TRIFOLIUM REPENS</subject><issn>0032-0889</issn><issn>1532-2548</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNo9j0tLxDAUhYMoOI7uXImLLNy25tnHUgZfICio6yGP2xpJk5J0xPF_-H8tzODqHvgOH_cgdE5JSSkR1-NYUtKUtGRcHqAFlZwVTIrmEC0ImTNpmvYYneT8SQihnIoF-n3-3vYQChfsxoDFAww6qQDYwhi9Su5HTS6GjF3AHvrNADjFOOEQ7cZDLvFLzNlpDxi-nIVgAHcxYRVwzEMED2ZKzig_i82HCi4P2MQwpei9C_1eg3uV8QhpAKWdd9P2FB11ymc4298ler-7fVs9FE_P94-rm6eiY4xNBecWNJvH0kpyCrISQmvZarBgacMIEYarqm6rWhNjSWVVK2ilKi2tbC3hfImudt5R5fnJbl5uXF6PyQ0qbddccsKImGuXu9pnnmL6x4LVlWTNjC92uFNxrfo0G95f25ryRgj-B-rXfYg</recordid><startdate>19950501</startdate><enddate>19950501</enddate><creator>Denison, R.F. (University of California, Davis, CA.)</creator><creator>Kinraide, T.B</creator><general>American Society of Plant Physiologists</general><scope>FBQ</scope><scope>IQODW</scope></search><sort><creationdate>19950501</creationdate><title>Oxygen-induced membrane depolarizations in legume root nodules. Possible evidence for an osmoelectrical mechanism controlling nodule gas permeability</title><author>Denison, R.F. (University of California, Davis, CA.) ; Kinraide, T.B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f222t-33deb223516531e5644bb59beded182004c3a67967b0cd06da9416a6b5d59d033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>ANATOMIA DE LA PLANTA</topic><topic>ANATOMIE VEGETALE</topic><topic>Biological and medical sciences</topic><topic>Depolarization</topic><topic>DIFERENCIAS BIOLOGICAS</topic><topic>DIFFERENCE BIOLOGIQUE</topic><topic>ECHANGE GAZEUX</topic><topic>ESTOMA</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>GLYCINE MAX</topic><topic>INTERCAMBIO DE GASES</topic><topic>ION</topic><topic>IONES</topic><topic>Legumes</topic><topic>LOTUS CORNICULATUS</topic><topic>MEDICAGO SATIVA</topic><topic>MEDICION</topic><topic>MEMBRANAS CELULARES</topic><topic>MEMBRANE CELLULAIRE</topic><topic>MESURE</topic><topic>MOUVEMENT</topic><topic>MOVIMIENTO</topic><topic>NODOSITE RACINAIRE</topic><topic>Nodules</topic><topic>NUDOSIDADES RADICULARES</topic><topic>OSMOREGULACION</topic><topic>OSMOREGULATION</topic><topic>OXIGENO</topic><topic>Oxygen</topic><topic>OXYGENE</topic><topic>Parasitism and symbiosis</topic><topic>PERMEABILIDAD</topic><topic>PERMEABILITE</topic><topic>Physiological regulation</topic><topic>Plant cells</topic><topic>Plant physiology and development</topic><topic>Plant-Microbe and Plant-Insect Interactions</topic><topic>Plants</topic><topic>POTENCIAL ELECTRICO</topic><topic>POTENTIEL ELECTRIQUE</topic><topic>PROPIEDADES OPTICAS</topic><topic>PROPRIETE OPTIQUE</topic><topic>Respiration</topic><topic>RHIZOBIUM</topic><topic>Root nodules</topic><topic>SIMBIOSIS</topic><topic>Soybeans</topic><topic>STOMATE</topic><topic>SYMBIOSE</topic><topic>Symbiosis</topic><topic>TRANSPIRACION</topic><topic>TRANSPIRATION</topic><topic>TRIFOLIUM REPENS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Denison, R.F. (University of California, Davis, CA.)</creatorcontrib><creatorcontrib>Kinraide, T.B</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><jtitle>Plant physiology (Bethesda)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Denison, R.F. (University of California, Davis, CA.)</au><au>Kinraide, T.B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Oxygen-induced membrane depolarizations in legume root nodules. Possible evidence for an osmoelectrical mechanism controlling nodule gas permeability</atitle><jtitle>Plant physiology (Bethesda)</jtitle><date>1995-05-01</date><risdate>1995</risdate><volume>108</volume><issue>1</issue><spage>235</spage><epage>240</epage><pages>235-240</pages><issn>0032-0889</issn><eissn>1532-2548</eissn><coden>PPHYA5</coden><abstract>Various stresses trigger rapid and reversible decreases in the O2 permeability (P(O)) of legume root nodules. Several possible mechanisms have been proposed, but no supporting data have previously been presented that meet the requirements for both rapidity and reversibility. Stomatal regulation of gas permeability in leaves involves electrically driven fluxes of inorganic osmoticants, so we investigated the possibility of a somewhat similar mechanism in nodules. We used microelectrodes to monitor membrane potential in intact, attached nodules of Glycine max, Medicago sativa, Lotus corniculatus, and Trifolium repens while controlling external O2 concentration and, in the case of G. max, measuring P(O) with a nodule oximeter. A 1- to 2-min exposure to 100 kPa O2 was found to induce rapid and reversible membrane depolarizations in nodules of each species. This depolarization (which, to our knowledge, is unique to nodules) is accompanied by reversible decreases in P(O) in G. max nodules. An osmoelectrical mechanism for control of nodule gas permeability, consistent with these data, is presented</abstract><cop>Rockville, MD</cop><pub>American Society of Plant Physiologists</pub><doi>10.1104/pp.108.1.235</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| source | Alma/SFX Local Collection; JSTOR; EZB Electronic Journals Library |
| subjects | ANATOMIA DE LA PLANTA ANATOMIE VEGETALE Biological and medical sciences Depolarization DIFERENCIAS BIOLOGICAS DIFFERENCE BIOLOGIQUE ECHANGE GAZEUX ESTOMA Fundamental and applied biological sciences. Psychology GLYCINE MAX INTERCAMBIO DE GASES ION IONES Legumes LOTUS CORNICULATUS MEDICAGO SATIVA MEDICION MEMBRANAS CELULARES MEMBRANE CELLULAIRE MESURE MOUVEMENT MOVIMIENTO NODOSITE RACINAIRE Nodules NUDOSIDADES RADICULARES OSMOREGULACION OSMOREGULATION OXIGENO Oxygen OXYGENE Parasitism and symbiosis PERMEABILIDAD PERMEABILITE Physiological regulation Plant cells Plant physiology and development Plant-Microbe and Plant-Insect Interactions Plants POTENCIAL ELECTRICO POTENTIEL ELECTRIQUE PROPIEDADES OPTICAS PROPRIETE OPTIQUE Respiration RHIZOBIUM Root nodules SIMBIOSIS Soybeans STOMATE SYMBIOSE Symbiosis TRANSPIRACION TRANSPIRATION TRIFOLIUM REPENS |
| title | Oxygen-induced membrane depolarizations in legume root nodules. Possible evidence for an osmoelectrical mechanism controlling nodule gas permeability |
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