Studies of the uptake of nitrate in barley. I. Kinetics of 13NO3(-1) influx
13NO3(-1) was used to investigate patterns of NO3(-1) influx into roots of barley plants (Hordeum vulgare L. cv Klondike) previously grown with ('induced') or without ('uninduced') a source of external NO3(-1) ([NO3(-1)]o). In both induced and uninduced plants, 13NO3(-1) influx w...
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| Veröffentlicht in: | Plant physiology (Bethesda) 1990-08, Vol.93 (4), p.1426-1432 |
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| container_title | Plant physiology (Bethesda) |
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| creator | Siddiqi, M.Y. (University of British Columbia, Vancouver, B.C., Canada) Glass, A.D.M Ruth, T.J Rufty, T.W. Jr |
| description | 13NO3(-1) was used to investigate patterns of NO3(-1) influx into roots of barley plants (Hordeum vulgare L. cv Klondike) previously grown with ('induced') or without ('uninduced') a source of external NO3(-1) ([NO3(-1)]o). In both induced and uninduced plants, 13NO3(-1) influx was biphasic in the range from 0.005 to 50 moles per cubic meter [NO3(-1)]o. In the low concentration range (less 1 mole per cubic meter for induced plants and less 0.3 mole per cubic meter for uninduced plants), influx was saturable and Vmax and Km values for influx either increased or decreased according to NO3(-1) pretreatment. By contrast, 13NO3(-1) influx in the high concentration range revealed a strictly linear concentration dependence. These fluxes appeared to be mediated by a constitutive, rather than an inducible, transport system |
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Kinetics of 13NO3(-1) influx</title><source>Alma/SFX Local Collection</source><source>JSTOR</source><source>EZB Electronic Journals Library</source><creator>Siddiqi, M.Y. (University of British Columbia, Vancouver, B.C., Canada) ; Glass, A.D.M ; Ruth, T.J ; Rufty, T.W. Jr</creator><creatorcontrib>Siddiqi, M.Y. (University of British Columbia, Vancouver, B.C., Canada) ; Glass, A.D.M ; Ruth, T.J ; Rufty, T.W. Jr</creatorcontrib><description>13NO3(-1) was used to investigate patterns of NO3(-1) influx into roots of barley plants (Hordeum vulgare L. cv Klondike) previously grown with ('induced') or without ('uninduced') a source of external NO3(-1) ([NO3(-1)]o). In both induced and uninduced plants, 13NO3(-1) influx was biphasic in the range from 0.005 to 50 moles per cubic meter [NO3(-1)]o. In the low concentration range (less 1 mole per cubic meter for induced plants and less 0.3 mole per cubic meter for uninduced plants), influx was saturable and Vmax and Km values for influx either increased or decreased according to NO3(-1) pretreatment. By contrast, 13NO3(-1) influx in the high concentration range revealed a strictly linear concentration dependence. These fluxes appeared to be mediated by a constitutive, rather than an inducible, transport system</description><identifier>ISSN: 0032-0889</identifier><identifier>EISSN: 1532-2548</identifier><identifier>CODEN: PPHYA5</identifier><language>eng</language><publisher>Rockville, MD: American Society of Plant Physiologists</publisher><subject>Biological and medical sciences ; CULTIVO HIDROPONICO ; CULTURE HYDROPONIQUE ; Fundamental and applied biological sciences. Psychology ; HORDEUM VULGARE ; MEDIO DE CULTIVO ; MILIEU DE CULTURE ; NITRATE ; NITRATOS ; Plant physiology and development ; RACINE ; RAICES ; TECHNIQUE DES TRACEURS ; TECNICAS DE AISLAMIENTO DE ISOTOPOS ; Water and solutes. Absorption, translocation and permeability</subject><ispartof>Plant physiology (Bethesda), 1990-08, Vol.93 (4), p.1426-1432</ispartof><rights>1991 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19668526$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Siddiqi, M.Y. (University of British Columbia, Vancouver, B.C., Canada)</creatorcontrib><creatorcontrib>Glass, A.D.M</creatorcontrib><creatorcontrib>Ruth, T.J</creatorcontrib><creatorcontrib>Rufty, T.W. Jr</creatorcontrib><title>Studies of the uptake of nitrate in barley. I. Kinetics of 13NO3(-1) influx</title><title>Plant physiology (Bethesda)</title><description>13NO3(-1) was used to investigate patterns of NO3(-1) influx into roots of barley plants (Hordeum vulgare L. cv Klondike) previously grown with ('induced') or without ('uninduced') a source of external NO3(-1) ([NO3(-1)]o). In both induced and uninduced plants, 13NO3(-1) influx was biphasic in the range from 0.005 to 50 moles per cubic meter [NO3(-1)]o. In the low concentration range (less 1 mole per cubic meter for induced plants and less 0.3 mole per cubic meter for uninduced plants), influx was saturable and Vmax and Km values for influx either increased or decreased according to NO3(-1) pretreatment. By contrast, 13NO3(-1) influx in the high concentration range revealed a strictly linear concentration dependence. These fluxes appeared to be mediated by a constitutive, rather than an inducible, transport system</description><subject>Biological and medical sciences</subject><subject>CULTIVO HIDROPONICO</subject><subject>CULTURE HYDROPONIQUE</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>HORDEUM VULGARE</subject><subject>MEDIO DE CULTIVO</subject><subject>MILIEU DE CULTURE</subject><subject>NITRATE</subject><subject>NITRATOS</subject><subject>Plant physiology and development</subject><subject>RACINE</subject><subject>RAICES</subject><subject>TECHNIQUE DES TRACEURS</subject><subject>TECNICAS DE AISLAMIENTO DE ISOTOPOS</subject><subject>Water and solutes. Absorption, translocation and permeability</subject><issn>0032-0889</issn><issn>1532-2548</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><recordid>eNotzMFLwzAYBfAgCs7pP-ApF0EPHV-a5mtylKFzbLhD9Vy-NolGa1fSFtx_b3We3nvw452wmVAyTVKV6VM2A5g6aG3O2UXffwCAkCKbsU0xjDa4nu89H94dH7uBPt3vasMQaXA8tLyi2LjDgq8XfBNaN4T6zwv5vJO3ibibjG_G70t25qnp3dV_zlnx-PCyfEq2u9V6eb9NfGYwSa3R3jgrAa2pEG2uM8AcrTC-VqDQVVTlOUGe16mgCjNrjfAAmZMKSc7ZzfG1o76mxkdq69CXXQxfFA-lMIhapTi566PztC_pLU7mtTCgQBuUP0uXT9I</recordid><startdate>199008</startdate><enddate>199008</enddate><creator>Siddiqi, M.Y. (University of British Columbia, Vancouver, B.C., Canada)</creator><creator>Glass, A.D.M</creator><creator>Ruth, T.J</creator><creator>Rufty, T.W. Jr</creator><general>American Society of Plant Physiologists</general><scope>FBQ</scope><scope>IQODW</scope></search><sort><creationdate>199008</creationdate><title>Studies of the uptake of nitrate in barley. I. Kinetics of 13NO3(-1) influx</title><author>Siddiqi, M.Y. (University of British Columbia, Vancouver, B.C., Canada) ; Glass, A.D.M ; Ruth, T.J ; Rufty, T.W. Jr</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f496-2d98f9ed306d9b66d7840676d19fc5056ebab77a077c21ab64dd91f004e356a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>Biological and medical sciences</topic><topic>CULTIVO HIDROPONICO</topic><topic>CULTURE HYDROPONIQUE</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>HORDEUM VULGARE</topic><topic>MEDIO DE CULTIVO</topic><topic>MILIEU DE CULTURE</topic><topic>NITRATE</topic><topic>NITRATOS</topic><topic>Plant physiology and development</topic><topic>RACINE</topic><topic>RAICES</topic><topic>TECHNIQUE DES TRACEURS</topic><topic>TECNICAS DE AISLAMIENTO DE ISOTOPOS</topic><topic>Water and solutes. Absorption, translocation and permeability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Siddiqi, M.Y. (University of British Columbia, Vancouver, B.C., Canada)</creatorcontrib><creatorcontrib>Glass, A.D.M</creatorcontrib><creatorcontrib>Ruth, T.J</creatorcontrib><creatorcontrib>Rufty, T.W. Jr</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>Siddiqi, M.Y. (University of British Columbia, Vancouver, B.C., Canada)</au><au>Glass, A.D.M</au><au>Ruth, T.J</au><au>Rufty, T.W. Jr</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Studies of the uptake of nitrate in barley. I. Kinetics of 13NO3(-1) influx</atitle><jtitle>Plant physiology (Bethesda)</jtitle><date>1990-08</date><risdate>1990</risdate><volume>93</volume><issue>4</issue><spage>1426</spage><epage>1432</epage><pages>1426-1432</pages><issn>0032-0889</issn><eissn>1532-2548</eissn><coden>PPHYA5</coden><abstract>13NO3(-1) was used to investigate patterns of NO3(-1) influx into roots of barley plants (Hordeum vulgare L. cv Klondike) previously grown with ('induced') or without ('uninduced') a source of external NO3(-1) ([NO3(-1)]o). In both induced and uninduced plants, 13NO3(-1) influx was biphasic in the range from 0.005 to 50 moles per cubic meter [NO3(-1)]o. In the low concentration range (less 1 mole per cubic meter for induced plants and less 0.3 mole per cubic meter for uninduced plants), influx was saturable and Vmax and Km values for influx either increased or decreased according to NO3(-1) pretreatment. By contrast, 13NO3(-1) influx in the high concentration range revealed a strictly linear concentration dependence. These fluxes appeared to be mediated by a constitutive, rather than an inducible, transport system</abstract><cop>Rockville, MD</cop><pub>American Society of Plant Physiologists</pub><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0032-0889 |
| ispartof | Plant physiology (Bethesda), 1990-08, Vol.93 (4), p.1426-1432 |
| issn | 0032-0889 1532-2548 |
| language | eng |
| recordid | cdi_pascalfrancis_primary_19668526 |
| source | Alma/SFX Local Collection; JSTOR; EZB Electronic Journals Library |
| subjects | Biological and medical sciences CULTIVO HIDROPONICO CULTURE HYDROPONIQUE Fundamental and applied biological sciences. Psychology HORDEUM VULGARE MEDIO DE CULTIVO MILIEU DE CULTURE NITRATE NITRATOS Plant physiology and development RACINE RAICES TECHNIQUE DES TRACEURS TECNICAS DE AISLAMIENTO DE ISOTOPOS Water and solutes. Absorption, translocation and permeability |
| title | Studies of the uptake of nitrate in barley. I. Kinetics of 13NO3(-1) influx |
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