Characterization of the sink/source transition in tobacco (Nicotiana tabacum L.) shoots in relation to nitrogen management and leaf senescence
The metabolic, biochemical and molecular events occurring during tobacco (Nicotiana tabacum) leaf ageing are presented, with a particular emphasis on nitrogen metabolism. An integrated model describing the source/sink relationship existing between leaves of different developmental stages along the m...
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| Veröffentlicht in: | Planta 2000-09, Vol.211 (4), p.510-518 |
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| creator | Masclaux, Céline Valadier, Marie-Hélène Brugière, Norbert Morot-Gaudry, Jean-François Hirel, Bertrand |
| description | The metabolic, biochemical and molecular events occurring during tobacco (Nicotiana tabacum) leaf ageing are presented, with a particular emphasis on nitrogen metabolism. An integrated model describing the source/sink relationship existing between leaves of different developmental stages along the main plant axis is proposed. The results of our study show that a tobacco plant can be divided into two main sections with regards to sink/source relationships. Sink-to-source transition occurs at a particular leaf stage in which a breakpoint corresponding to an accumulation of carbohydrates and a depletion of both organic and inorganic nitrogen is observed. The sink/source transition is also marked by the appearence of endoproteolytic activities and the induction of both cytosolic glutamine synthetase and NAD(H)-dependent glutamate dehydrogenase transcripts, proteins and activities. The role of the newly induced enzymes and the nature of the potential metabolic and developmental signals involved in the regulation of their expression during leaf senescence are discussed. |
| doi_str_mv | 10.1007/s004250000310 |
| format | Article |
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An integrated model describing the source/sink relationship existing between leaves of different developmental stages along the main plant axis is proposed. The results of our study show that a tobacco plant can be divided into two main sections with regards to sink/source relationships. Sink-to-source transition occurs at a particular leaf stage in which a breakpoint corresponding to an accumulation of carbohydrates and a depletion of both organic and inorganic nitrogen is observed. The sink/source transition is also marked by the appearence of endoproteolytic activities and the induction of both cytosolic glutamine synthetase and NAD(H)-dependent glutamate dehydrogenase transcripts, proteins and activities. The role of the newly induced enzymes and the nature of the potential metabolic and developmental signals involved in the regulation of their expression during leaf senescence are discussed.</description><identifier>ISSN: 0032-0935</identifier><identifier>EISSN: 1432-2048</identifier><identifier>DOI: 10.1007/s004250000310</identifier><identifier>PMID: 11030550</identifier><identifier>CODEN: PLANAB</identifier><language>eng</language><publisher>Berlin: Springer-Verlag</publisher><subject>Agronomy. Soil science and plant productions ; Amino acids ; Base Sequence ; Biological and medical sciences ; Cellular senescence ; DNA Primers ; Economic plant physiology ; Enzymes ; Fundamental and applied biological sciences. Psychology ; Genetics ; Glutamate Dehydrogenase - metabolism ; Glutamate-Ammonia Ligase - metabolism ; Growth and development ; Leaves ; Life Sciences ; Morphogenesis, differentiation, rhizogenesis, tuberization. Senescence ; Nicotiana - enzymology ; Nicotiana - metabolism ; Nicotiana - physiology ; Nitrates ; Nitrogen ; Nitrogen - metabolism ; Plant Leaves - enzymology ; Plant Leaves - metabolism ; Plant Leaves - physiology ; Plant physiology and development ; Plants ; Plants genetics ; Plants, Toxic ; Protein metabolism ; RNA ; Senescence and abscission ; Vegetative apparatus, growth and morphogenesis. Senescence</subject><ispartof>Planta, 2000-09, Vol.211 (4), p.510-518</ispartof><rights>Springer-Verlag 2000</rights><rights>2000 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c440t-dbd9dad3e12e4e2708e5836c42748c9b009b9adc2192adec31098c1d7fcaf0aa3</citedby><orcidid>0000-0003-0719-9350 ; 0000-0002-5518-3671</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/23386067$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/23386067$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,776,780,799,881,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1501357$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11030550$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.inrae.fr/hal-02697199$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Masclaux, Céline</creatorcontrib><creatorcontrib>Valadier, Marie-Hélène</creatorcontrib><creatorcontrib>Brugière, Norbert</creatorcontrib><creatorcontrib>Morot-Gaudry, Jean-François</creatorcontrib><creatorcontrib>Hirel, Bertrand</creatorcontrib><title>Characterization of the sink/source transition in tobacco (Nicotiana tabacum L.) shoots in relation to nitrogen management and leaf senescence</title><title>Planta</title><addtitle>Planta</addtitle><description>The metabolic, biochemical and molecular events occurring during tobacco (Nicotiana tabacum) leaf ageing are presented, with a particular emphasis on nitrogen metabolism. An integrated model describing the source/sink relationship existing between leaves of different developmental stages along the main plant axis is proposed. The results of our study show that a tobacco plant can be divided into two main sections with regards to sink/source relationships. Sink-to-source transition occurs at a particular leaf stage in which a breakpoint corresponding to an accumulation of carbohydrates and a depletion of both organic and inorganic nitrogen is observed. The sink/source transition is also marked by the appearence of endoproteolytic activities and the induction of both cytosolic glutamine synthetase and NAD(H)-dependent glutamate dehydrogenase transcripts, proteins and activities. The role of the newly induced enzymes and the nature of the potential metabolic and developmental signals involved in the regulation of their expression during leaf senescence are discussed.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Amino acids</subject><subject>Base Sequence</subject><subject>Biological and medical sciences</subject><subject>Cellular senescence</subject><subject>DNA Primers</subject><subject>Economic plant physiology</subject><subject>Enzymes</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Genetics</subject><subject>Glutamate Dehydrogenase - metabolism</subject><subject>Glutamate-Ammonia Ligase - metabolism</subject><subject>Growth and development</subject><subject>Leaves</subject><subject>Life Sciences</subject><subject>Morphogenesis, differentiation, rhizogenesis, tuberization. Senescence</subject><subject>Nicotiana - enzymology</subject><subject>Nicotiana - metabolism</subject><subject>Nicotiana - physiology</subject><subject>Nitrates</subject><subject>Nitrogen</subject><subject>Nitrogen - metabolism</subject><subject>Plant Leaves - enzymology</subject><subject>Plant Leaves - metabolism</subject><subject>Plant Leaves - physiology</subject><subject>Plant physiology and development</subject><subject>Plants</subject><subject>Plants genetics</subject><subject>Plants, Toxic</subject><subject>Protein metabolism</subject><subject>RNA</subject><subject>Senescence and abscission</subject><subject>Vegetative apparatus, growth and morphogenesis. Senescence</subject><issn>0032-0935</issn><issn>1432-2048</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpV0cFu1DAQBmALUdFt4cgR5AMHekg7tpNNfKxWQJFW5QLnaGJPui6JXdleJHgInhlvs2qFLyPN_3kOM4y9FXApANqrBFDLBspTAl6wlaiVrCTU3Uu2Kj1ZgVbNKTtL6R6ghG37ip0KAQqaBlbs72aHEU2m6P5gdsHzMPK8I56c_3mVwj4a4jmiT-4xdZ7nMKAxgX-8dSZkhx55xtLaz3x7ecHTLoScDjDStIzMgXuXY7gjz-fi72gmnzl6yyfCkSfylAx5Q6_ZyYhTojfHes5-fP70fXNTbb99-bq53lamriFXdrDaolUkJNUkW-io6dTa1LKtO6MHAD1otEYKLdGSKavRnRG2HQ2OgKjO2cUyd4dT_xDdjPF3H9D1N9fb_tADudat0PqXKLZarIkhpUjj0wcB_eEG_X83KP794h_2w0z2WR-XXsCHI8BkcBrLdo1Lz64BoZq2sHcLu085xKdYKtWtYd2qfy3wmX0</recordid><startdate>20000901</startdate><enddate>20000901</enddate><creator>Masclaux, Céline</creator><creator>Valadier, Marie-Hélène</creator><creator>Brugière, Norbert</creator><creator>Morot-Gaudry, Jean-François</creator><creator>Hirel, Bertrand</creator><general>Springer-Verlag</general><general>Springer</general><general>Springer Verlag</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0003-0719-9350</orcidid><orcidid>https://orcid.org/0000-0002-5518-3671</orcidid></search><sort><creationdate>20000901</creationdate><title>Characterization of the sink/source transition in tobacco (Nicotiana tabacum L.) shoots in relation to nitrogen management and leaf senescence</title><author>Masclaux, Céline ; Valadier, Marie-Hélène ; Brugière, Norbert ; Morot-Gaudry, Jean-François ; Hirel, Bertrand</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c440t-dbd9dad3e12e4e2708e5836c42748c9b009b9adc2192adec31098c1d7fcaf0aa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>Amino acids</topic><topic>Base Sequence</topic><topic>Biological and medical sciences</topic><topic>Cellular senescence</topic><topic>DNA Primers</topic><topic>Economic plant physiology</topic><topic>Enzymes</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Genetics</topic><topic>Glutamate Dehydrogenase - metabolism</topic><topic>Glutamate-Ammonia Ligase - metabolism</topic><topic>Growth and development</topic><topic>Leaves</topic><topic>Life Sciences</topic><topic>Morphogenesis, differentiation, rhizogenesis, tuberization. Senescence</topic><topic>Nicotiana - enzymology</topic><topic>Nicotiana - metabolism</topic><topic>Nicotiana - physiology</topic><topic>Nitrates</topic><topic>Nitrogen</topic><topic>Nitrogen - metabolism</topic><topic>Plant Leaves - enzymology</topic><topic>Plant Leaves - metabolism</topic><topic>Plant Leaves - physiology</topic><topic>Plant physiology and development</topic><topic>Plants</topic><topic>Plants genetics</topic><topic>Plants, Toxic</topic><topic>Protein metabolism</topic><topic>RNA</topic><topic>Senescence and abscission</topic><topic>Vegetative apparatus, growth and morphogenesis. Senescence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Masclaux, Céline</creatorcontrib><creatorcontrib>Valadier, Marie-Hélène</creatorcontrib><creatorcontrib>Brugière, Norbert</creatorcontrib><creatorcontrib>Morot-Gaudry, Jean-François</creatorcontrib><creatorcontrib>Hirel, Bertrand</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Planta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Masclaux, Céline</au><au>Valadier, Marie-Hélène</au><au>Brugière, Norbert</au><au>Morot-Gaudry, Jean-François</au><au>Hirel, Bertrand</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization of the sink/source transition in tobacco (Nicotiana tabacum L.) shoots in relation to nitrogen management and leaf senescence</atitle><jtitle>Planta</jtitle><addtitle>Planta</addtitle><date>2000-09-01</date><risdate>2000</risdate><volume>211</volume><issue>4</issue><spage>510</spage><epage>518</epage><pages>510-518</pages><issn>0032-0935</issn><eissn>1432-2048</eissn><coden>PLANAB</coden><abstract>The metabolic, biochemical and molecular events occurring during tobacco (Nicotiana tabacum) leaf ageing are presented, with a particular emphasis on nitrogen metabolism. An integrated model describing the source/sink relationship existing between leaves of different developmental stages along the main plant axis is proposed. The results of our study show that a tobacco plant can be divided into two main sections with regards to sink/source relationships. Sink-to-source transition occurs at a particular leaf stage in which a breakpoint corresponding to an accumulation of carbohydrates and a depletion of both organic and inorganic nitrogen is observed. The sink/source transition is also marked by the appearence of endoproteolytic activities and the induction of both cytosolic glutamine synthetase and NAD(H)-dependent glutamate dehydrogenase transcripts, proteins and activities. The role of the newly induced enzymes and the nature of the potential metabolic and developmental signals involved in the regulation of their expression during leaf senescence are discussed.</abstract><cop>Berlin</cop><pub>Springer-Verlag</pub><pmid>11030550</pmid><doi>10.1007/s004250000310</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-0719-9350</orcidid><orcidid>https://orcid.org/0000-0002-5518-3671</orcidid></addata></record> |
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| subjects | Agronomy. Soil science and plant productions Amino acids Base Sequence Biological and medical sciences Cellular senescence DNA Primers Economic plant physiology Enzymes Fundamental and applied biological sciences. Psychology Genetics Glutamate Dehydrogenase - metabolism Glutamate-Ammonia Ligase - metabolism Growth and development Leaves Life Sciences Morphogenesis, differentiation, rhizogenesis, tuberization. Senescence Nicotiana - enzymology Nicotiana - metabolism Nicotiana - physiology Nitrates Nitrogen Nitrogen - metabolism Plant Leaves - enzymology Plant Leaves - metabolism Plant Leaves - physiology Plant physiology and development Plants Plants genetics Plants, Toxic Protein metabolism RNA Senescence and abscission Vegetative apparatus, growth and morphogenesis. Senescence |
| title | Characterization of the sink/source transition in tobacco (Nicotiana tabacum L.) shoots in relation to nitrogen management and leaf senescence |
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