Maintenance of shoot growth by endogenous ABA: genetic assessment of the involvement of ethylene suppression
Previous work demonstrated that normal levels of endogenous abscisic acid (ABA) are required to maintain shoot growth in well-watered tomato plants independently of effects of hormone status on plant water balance. The results suggested that the impairment of shoot growth in ABA-deficient mutants is...
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| Veröffentlicht in: | Journal of experimental botany 2004-01, Vol.55 (395), p.237-245 |
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| description | Previous work demonstrated that normal levels of endogenous abscisic acid (ABA) are required to maintain shoot growth in well-watered tomato plants independently of effects of hormone status on plant water balance. The results suggested that the impairment of shoot growth in ABA-deficient mutants is at least partly attributable to increased ethylene production. To assess the extent to which ABA maintains shoot growth by ethylene suppression, the growth of ABA-deficient (aba2-1) and ethylene-insensitive (etr1-1) single- and double-mutants of Arabidopsis was examined. To ensure that the results were independent of effects of hormone status on plant water balance, differential relative humidity regimes were used to achieve similar leaf water potentials in all genotypes and treatments. In aba2-1, shoot growth was substantially inhibited and ethylene evolution was doubled compared with the wild type, consistent with the results for tomato. In the aba2-1 etr1-1 double mutant, in which ABA was equally as deficient as in aba2-1 and shoot growth was shown to be insensitive to ethylene, shoot growth was substantially, although incompletely, restored relative to etr1-1. Treatment with ABA resulted in the complete recovery of shoot growth in aba2-1 relative to the wild type, and also significantly increased the growth of aba2-1 etr1-1 such that total leaf area and shoot fresh weight were not significantly lower than in etr1-1. In addition, ABA treatment of aba2-1 etr1-1 restored the wider leaf morphology phenotype exhibited by etr1-1. The results demonstrate that normal levels of endogenous ABA maintain shoot development, particularly leaf expansion, in well-watered Arabidopsis plants, partly by suppressing ethylene synthesis and partly by another mechanism that is independent of ethylene. |
| doi_str_mv | 10.1093/jxb/erh031 |
| format | Article |
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The results suggested that the impairment of shoot growth in ABA-deficient mutants is at least partly attributable to increased ethylene production. To assess the extent to which ABA maintains shoot growth by ethylene suppression, the growth of ABA-deficient (aba2-1) and ethylene-insensitive (etr1-1) single- and double-mutants of Arabidopsis was examined. To ensure that the results were independent of effects of hormone status on plant water balance, differential relative humidity regimes were used to achieve similar leaf water potentials in all genotypes and treatments. In aba2-1, shoot growth was substantially inhibited and ethylene evolution was doubled compared with the wild type, consistent with the results for tomato. In the aba2-1 etr1-1 double mutant, in which ABA was equally as deficient as in aba2-1 and shoot growth was shown to be insensitive to ethylene, shoot growth was substantially, although incompletely, restored relative to etr1-1. Treatment with ABA resulted in the complete recovery of shoot growth in aba2-1 relative to the wild type, and also significantly increased the growth of aba2-1 etr1-1 such that total leaf area and shoot fresh weight were not significantly lower than in etr1-1. In addition, ABA treatment of aba2-1 etr1-1 restored the wider leaf morphology phenotype exhibited by etr1-1. The results demonstrate that normal levels of endogenous ABA maintain shoot development, particularly leaf expansion, in well-watered Arabidopsis plants, partly by suppressing ethylene synthesis and partly by another mechanism that is independent of ethylene.</description><identifier>ISSN: 0022-0957</identifier><identifier>ISSN: 1460-2431</identifier><identifier>EISSN: 1460-2431</identifier><identifier>DOI: 10.1093/jxb/erh031</identifier><identifier>PMID: 14673028</identifier><identifier>CODEN: JEBOA6</identifier><language>eng</language><publisher>Oxford: Oxford University Press</publisher><subject>ABA ; aba2‐1 ; abscisic acid ; Abscisic Acid - pharmacology ; Abscisic Acid - physiology ; Agronomy. Soil science and plant productions ; Arabidopsis - drug effects ; Arabidopsis - genetics ; Arabidopsis - growth & development ; Arabidopsis thaliana ; Biological and medical sciences ; Biological Evolution ; Cell physiology ; Economic plant physiology ; ethylene ; Ethylene production ; ethylene suppression ; Ethylenes - pharmacology ; etr1‐1 ; Fundamental and applied biological sciences. Psychology ; gene expression ; genes ; Genotypes ; Growth and development ; Humidity ; inhibition of ethylene production ; Leaf area ; leaves ; Lycopersicon esculentum ; Lycopersicon esculentum - growth & development ; Molecular and cellular biology ; Morphogenesis, differentiation, rhizogenesis, tuberization. Senescence ; Mutagenesis ; mutants ; mutation ; plant development ; Plant growth ; Plant Growth Regulators - pharmacology ; Plant Growth Regulators - physiology ; Plant growth. Development of the storage organs ; Plant interaction ; Plant Leaves - drug effects ; Plant Leaves - physiology ; Plant physiology ; Plant physiology and development ; Plant Shoots - drug effects ; Plant Shoots - growth & development ; Plants ; Root growth ; shoot growth ; shoots ; Signal transduction ; Signalling in Abiotic Stress ; Vegetative apparatus, growth and morphogenesis. Senescence ; Water balance ; Water treatment</subject><ispartof>Journal of experimental botany, 2004-01, Vol.55 (395), p.237-245</ispartof><rights>Society for Experimental Biology 2004</rights><rights>2004 INIST-CNRS</rights><rights>Copyright Oxford University Press(England) Jan 01, 2004</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c557t-f0097f982c7f7c4c4d827efed605a3f496e7d9a5610368a5cc075d47f0b8767d3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/24012704$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/24012704$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,799,23909,23910,25118,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15478262$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/14673028$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>LeNoble, M.E</creatorcontrib><creatorcontrib>Spollen, W.G</creatorcontrib><creatorcontrib>Sharp, R.E</creatorcontrib><title>Maintenance of shoot growth by endogenous ABA: genetic assessment of the involvement of ethylene suppression</title><title>Journal of experimental botany</title><addtitle>J. Exp. Bot</addtitle><description>Previous work demonstrated that normal levels of endogenous abscisic acid (ABA) are required to maintain shoot growth in well-watered tomato plants independently of effects of hormone status on plant water balance. The results suggested that the impairment of shoot growth in ABA-deficient mutants is at least partly attributable to increased ethylene production. To assess the extent to which ABA maintains shoot growth by ethylene suppression, the growth of ABA-deficient (aba2-1) and ethylene-insensitive (etr1-1) single- and double-mutants of Arabidopsis was examined. To ensure that the results were independent of effects of hormone status on plant water balance, differential relative humidity regimes were used to achieve similar leaf water potentials in all genotypes and treatments. In aba2-1, shoot growth was substantially inhibited and ethylene evolution was doubled compared with the wild type, consistent with the results for tomato. In the aba2-1 etr1-1 double mutant, in which ABA was equally as deficient as in aba2-1 and shoot growth was shown to be insensitive to ethylene, shoot growth was substantially, although incompletely, restored relative to etr1-1. Treatment with ABA resulted in the complete recovery of shoot growth in aba2-1 relative to the wild type, and also significantly increased the growth of aba2-1 etr1-1 such that total leaf area and shoot fresh weight were not significantly lower than in etr1-1. In addition, ABA treatment of aba2-1 etr1-1 restored the wider leaf morphology phenotype exhibited by etr1-1. The results demonstrate that normal levels of endogenous ABA maintain shoot development, particularly leaf expansion, in well-watered Arabidopsis plants, partly by suppressing ethylene synthesis and partly by another mechanism that is independent of ethylene.</description><subject>ABA</subject><subject>aba2‐1</subject><subject>abscisic acid</subject><subject>Abscisic Acid - pharmacology</subject><subject>Abscisic Acid - physiology</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Arabidopsis - drug effects</subject><subject>Arabidopsis - genetics</subject><subject>Arabidopsis - growth & development</subject><subject>Arabidopsis thaliana</subject><subject>Biological and medical sciences</subject><subject>Biological Evolution</subject><subject>Cell physiology</subject><subject>Economic plant physiology</subject><subject>ethylene</subject><subject>Ethylene production</subject><subject>ethylene suppression</subject><subject>Ethylenes - pharmacology</subject><subject>etr1‐1</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>gene expression</subject><subject>genes</subject><subject>Genotypes</subject><subject>Growth and development</subject><subject>Humidity</subject><subject>inhibition of ethylene production</subject><subject>Leaf area</subject><subject>leaves</subject><subject>Lycopersicon esculentum</subject><subject>Lycopersicon esculentum - growth & development</subject><subject>Molecular and cellular biology</subject><subject>Morphogenesis, differentiation, rhizogenesis, tuberization. Senescence</subject><subject>Mutagenesis</subject><subject>mutants</subject><subject>mutation</subject><subject>plant development</subject><subject>Plant growth</subject><subject>Plant Growth Regulators - pharmacology</subject><subject>Plant Growth Regulators - physiology</subject><subject>Plant growth. Development of the storage organs</subject><subject>Plant interaction</subject><subject>Plant Leaves - drug effects</subject><subject>Plant Leaves - physiology</subject><subject>Plant physiology</subject><subject>Plant physiology and development</subject><subject>Plant Shoots - drug effects</subject><subject>Plant Shoots - growth & development</subject><subject>Plants</subject><subject>Root growth</subject><subject>shoot growth</subject><subject>shoots</subject><subject>Signal transduction</subject><subject>Signalling in Abiotic Stress</subject><subject>Vegetative apparatus, growth and morphogenesis. Senescence</subject><subject>Water balance</subject><subject>Water treatment</subject><issn>0022-0957</issn><issn>1460-2431</issn><issn>1460-2431</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpd0d1vFCEQAPCN0dhr9cV3lZjog8naARbY9e1aP2pSo8Y2Mb4Qjh3u9txbTmBr77-XZs828QnC_JiBmaJ4QuENhYYfr68XxxhWwOm9YkYrCSWrOL1fzAAYK6ER6qA4jHENAAKEeFgcZKQ4sHpW9J9NNyQczGCReEfiyvtElsH_SSuy2BEcWr_EwY-RzE_mb0neY-osMTFijBsc0s2ttELSDVe-v8J_R5hWuz5jEsftNmTb-eFR8cCZPuLj_XpUXH54f3F6Vp5_-fjpdH5eWiFUKh1Ao1xTM6ucspWt2popdNhKEIa7qpGo2sYISYHL2ghrQYm2Ug4WtZKq5UfFqynvNvjfI8akN1202PdmwPwTTVXDpJSQ4Yv_4NqPYchv04wLACpBZvR6Qjb4GAM6vQ3dxoSdpqBvBqDzAPQ0gIyf7TOOiw22d3Tf8Qxe7oGJ1vQu5M538c6JStVMsuyeTm4dkw-3cVYBZQqqHC-neBcTXt_GTfilcyUl9NmPnxq-0a8XnL_TKvvnk3fGa7MMuebldwaU52YLUdU1_wv-6rEe</recordid><startdate>20040101</startdate><enddate>20040101</enddate><creator>LeNoble, M.E</creator><creator>Spollen, W.G</creator><creator>Sharp, R.E</creator><general>Oxford University Press</general><general>Oxford Publishing Limited (England)</general><scope>FBQ</scope><scope>BSCLL</scope><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>7QO</scope><scope>7QP</scope><scope>8FD</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>RC3</scope></search><sort><creationdate>20040101</creationdate><title>Maintenance of shoot growth by endogenous ABA: genetic assessment of the involvement of ethylene suppression</title><author>LeNoble, M.E ; Spollen, W.G ; Sharp, R.E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c557t-f0097f982c7f7c4c4d827efed605a3f496e7d9a5610368a5cc075d47f0b8767d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>ABA</topic><topic>aba2‐1</topic><topic>abscisic acid</topic><topic>Abscisic Acid - pharmacology</topic><topic>Abscisic Acid - physiology</topic><topic>Agronomy. Soil science and plant productions</topic><topic>Arabidopsis - drug effects</topic><topic>Arabidopsis - genetics</topic><topic>Arabidopsis - growth & development</topic><topic>Arabidopsis thaliana</topic><topic>Biological and medical sciences</topic><topic>Biological Evolution</topic><topic>Cell physiology</topic><topic>Economic plant physiology</topic><topic>ethylene</topic><topic>Ethylene production</topic><topic>ethylene suppression</topic><topic>Ethylenes - pharmacology</topic><topic>etr1‐1</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>gene expression</topic><topic>genes</topic><topic>Genotypes</topic><topic>Growth and development</topic><topic>Humidity</topic><topic>inhibition of ethylene production</topic><topic>Leaf area</topic><topic>leaves</topic><topic>Lycopersicon esculentum</topic><topic>Lycopersicon esculentum - growth & development</topic><topic>Molecular and cellular biology</topic><topic>Morphogenesis, differentiation, rhizogenesis, tuberization. Senescence</topic><topic>Mutagenesis</topic><topic>mutants</topic><topic>mutation</topic><topic>plant development</topic><topic>Plant growth</topic><topic>Plant Growth Regulators - pharmacology</topic><topic>Plant Growth Regulators - physiology</topic><topic>Plant growth. Development of the storage organs</topic><topic>Plant interaction</topic><topic>Plant Leaves - drug effects</topic><topic>Plant Leaves - physiology</topic><topic>Plant physiology</topic><topic>Plant physiology and development</topic><topic>Plant Shoots - drug effects</topic><topic>Plant Shoots - growth & development</topic><topic>Plants</topic><topic>Root growth</topic><topic>shoot growth</topic><topic>shoots</topic><topic>Signal transduction</topic><topic>Signalling in Abiotic Stress</topic><topic>Vegetative apparatus, growth and morphogenesis. Senescence</topic><topic>Water balance</topic><topic>Water treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LeNoble, M.E</creatorcontrib><creatorcontrib>Spollen, W.G</creatorcontrib><creatorcontrib>Sharp, R.E</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><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>Biotechnology Research Abstracts</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><jtitle>Journal of experimental botany</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>LeNoble, M.E</au><au>Spollen, W.G</au><au>Sharp, R.E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Maintenance of shoot growth by endogenous ABA: genetic assessment of the involvement of ethylene suppression</atitle><jtitle>Journal of experimental botany</jtitle><addtitle>J. Exp. Bot</addtitle><date>2004-01-01</date><risdate>2004</risdate><volume>55</volume><issue>395</issue><spage>237</spage><epage>245</epage><pages>237-245</pages><issn>0022-0957</issn><issn>1460-2431</issn><eissn>1460-2431</eissn><coden>JEBOA6</coden><abstract>Previous work demonstrated that normal levels of endogenous abscisic acid (ABA) are required to maintain shoot growth in well-watered tomato plants independently of effects of hormone status on plant water balance. The results suggested that the impairment of shoot growth in ABA-deficient mutants is at least partly attributable to increased ethylene production. To assess the extent to which ABA maintains shoot growth by ethylene suppression, the growth of ABA-deficient (aba2-1) and ethylene-insensitive (etr1-1) single- and double-mutants of Arabidopsis was examined. To ensure that the results were independent of effects of hormone status on plant water balance, differential relative humidity regimes were used to achieve similar leaf water potentials in all genotypes and treatments. In aba2-1, shoot growth was substantially inhibited and ethylene evolution was doubled compared with the wild type, consistent with the results for tomato. In the aba2-1 etr1-1 double mutant, in which ABA was equally as deficient as in aba2-1 and shoot growth was shown to be insensitive to ethylene, shoot growth was substantially, although incompletely, restored relative to etr1-1. Treatment with ABA resulted in the complete recovery of shoot growth in aba2-1 relative to the wild type, and also significantly increased the growth of aba2-1 etr1-1 such that total leaf area and shoot fresh weight were not significantly lower than in etr1-1. In addition, ABA treatment of aba2-1 etr1-1 restored the wider leaf morphology phenotype exhibited by etr1-1. The results demonstrate that normal levels of endogenous ABA maintain shoot development, particularly leaf expansion, in well-watered Arabidopsis plants, partly by suppressing ethylene synthesis and partly by another mechanism that is independent of ethylene.</abstract><cop>Oxford</cop><pub>Oxford University Press</pub><pmid>14673028</pmid><doi>10.1093/jxb/erh031</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of experimental botany, 2004-01, Vol.55 (395), p.237-245 |
| issn | 0022-0957 1460-2431 1460-2431 |
| language | eng |
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| source | Jstor Complete Legacy; Oxford University Press Journals All Titles (1996-Current); MEDLINE; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | ABA aba2‐1 abscisic acid Abscisic Acid - pharmacology Abscisic Acid - physiology Agronomy. Soil science and plant productions Arabidopsis - drug effects Arabidopsis - genetics Arabidopsis - growth & development Arabidopsis thaliana Biological and medical sciences Biological Evolution Cell physiology Economic plant physiology ethylene Ethylene production ethylene suppression Ethylenes - pharmacology etr1‐1 Fundamental and applied biological sciences. Psychology gene expression genes Genotypes Growth and development Humidity inhibition of ethylene production Leaf area leaves Lycopersicon esculentum Lycopersicon esculentum - growth & development Molecular and cellular biology Morphogenesis, differentiation, rhizogenesis, tuberization. Senescence Mutagenesis mutants mutation plant development Plant growth Plant Growth Regulators - pharmacology Plant Growth Regulators - physiology Plant growth. Development of the storage organs Plant interaction Plant Leaves - drug effects Plant Leaves - physiology Plant physiology Plant physiology and development Plant Shoots - drug effects Plant Shoots - growth & development Plants Root growth shoot growth shoots Signal transduction Signalling in Abiotic Stress Vegetative apparatus, growth and morphogenesis. Senescence Water balance Water treatment |
| title | Maintenance of shoot growth by endogenous ABA: genetic assessment of the involvement of ethylene suppression |
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