Gibberellins inhibit adventitious rooting in hybrid aspen and Arabidopsis by affecting auxin transport.
Identifieur interne : 002196 ( Main/Exploration ); précédent : 002195; suivant : 002197Gibberellins inhibit adventitious rooting in hybrid aspen and Arabidopsis by affecting auxin transport.
Auteurs : Mélanie Mauriat [France] ; Anna Petterle ; Catherine Bellini ; Thomas MoritzSource :
- The Plant journal : for cell and molecular biology [ 1365-313X ] ; 2014.
Descripteurs français
- KwdFr :
- Acides indolacétiques (métabolisme), Arabidopsis (effets des médicaments et des substances chimiques), Arabidopsis (génétique), Arabidopsis (physiologie), Chimère (MeSH), Cyclopentanes (métabolisme), Cyclopentanes (pharmacologie), Gibbérellines (métabolisme), Gibbérellines (pharmacologie), Hypocotyle (génétique), Mixed function oxygenases (génétique), Mixed function oxygenases (métabolisme), Oxygénases (génétique), Oxygénases (métabolisme), Oxylipines (métabolisme), Oxylipines (pharmacologie), Populus (génétique), Populus (physiologie), Protéines d'Arabidopsis (génétique), Protéines d'Arabidopsis (métabolisme), Racines de plante (croissance et développement), Racines de plante (effets des médicaments et des substances chimiques), Racines de plante (métabolisme), Régulation de l'expression des gènes végétaux (MeSH), Transport biologique (génétique), Transport biologique (physiologie), Végétaux génétiquement modifiés (MeSH).
- MESH :
- croissance et développement : Racines de plante.
- effets des médicaments et des substances chimiques : Arabidopsis, Racines de plante.
- génétique : Arabidopsis, Hypocotyle, Mixed function oxygenases, Oxygénases, Populus, Protéines d'Arabidopsis, Transport biologique.
- métabolisme : Acides indolacétiques, Cyclopentanes, Gibbérellines, Mixed function oxygenases, Oxygénases, Oxylipines, Protéines d'Arabidopsis, Racines de plante.
- pharmacologie : Cyclopentanes, Gibbérellines, Oxylipines.
- physiologie : Arabidopsis, Populus, Transport biologique.
- Chimère, Régulation de l'expression des gènes végétaux, Végétaux génétiquement modifiés.
English descriptors
- KwdEn :
- Arabidopsis (drug effects), Arabidopsis (genetics), Arabidopsis (physiology), Arabidopsis Proteins (genetics), Arabidopsis Proteins (metabolism), Biological Transport (genetics), Biological Transport (physiology), Chimera (MeSH), Cyclopentanes (metabolism), Cyclopentanes (pharmacology), Gene Expression Regulation, Plant (MeSH), Gibberellins (metabolism), Gibberellins (pharmacology), Hypocotyl (genetics), Indoleacetic Acids (metabolism), Mixed Function Oxygenases (genetics), Mixed Function Oxygenases (metabolism), Oxygenases (genetics), Oxygenases (metabolism), Oxylipins (metabolism), Oxylipins (pharmacology), Plant Roots (drug effects), Plant Roots (growth & development), Plant Roots (metabolism), Plants, Genetically Modified (MeSH), Populus (genetics), Populus (physiology).
- MESH :
- chemical , genetics : Arabidopsis Proteins, Mixed Function Oxygenases, Oxygenases.
- drug effects : Arabidopsis, Plant Roots.
- genetics : Arabidopsis, Biological Transport, Hypocotyl, Populus.
- growth & development : Plant Roots.
- chemical , metabolism : Arabidopsis Proteins, Cyclopentanes, Gibberellins, Indoleacetic Acids, Mixed Function Oxygenases, Oxygenases, Oxylipins, Plant Roots.
- chemical , pharmacology : Cyclopentanes, Gibberellins, Oxylipins.
- physiology : Arabidopsis, Biological Transport, Populus.
- Chimera, Gene Expression Regulation, Plant, Plants, Genetically Modified.
Abstract
Knowledge of processes involved in adventitious rooting is important to improve both fundamental understanding of plant physiology and the propagation of numerous plants. Hybrid aspen (Populus tremula × tremuloïdes) plants overexpressing a key gibberellin (GA) biosynthesis gene (AtGA20ox1) grow rapidly but have poor rooting efficiency, which restricts their clonal propagation. Therefore, we investigated the molecular basis of adventitious rooting in Populus and the model plant Arabidopsis. The production of adventitious roots (ARs) in tree cuttings is initiated from the basal stem region, and involves the interplay of several endogenous and exogenous factors. The roles of several hormones in this process have been characterized, but the effects of GAs have not been fully investigated. Here, we show that a GA treatment negatively affects the numbers of ARs produced by wild-type hybrid aspen cuttings. Furthermore, both hybrid aspen plants and intact Arabidopsis seedlings overexpressing AtGA20ox1, PttGID1.1 or PttGID1.3 genes (with a 35S promoter) produce few ARs, although ARs develop from the basal stem region of hybrid aspen and the hypocotyl of Arabidopsis. In Arabidopsis, auxin and strigolactones are known to affect AR formation. Our data show that the inhibitory effect of GA treatment on adventitious rooting is not mediated by perturbation of the auxin signalling pathway, or of the strigolactone biosynthetic and signalling pathways. Instead, GAs appear to act by perturbing polar auxin transport, in particular auxin efflux in hybrid aspen, and both efflux and influx in Arabidopsis.
DOI: 10.1111/tpj.12478
PubMed: 24547703
Affiliations:
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Hybrid aspen (Populus tremula × tremuloïdes) plants overexpressing a key gibberellin (GA) biosynthesis gene (AtGA20ox1) grow rapidly but have poor rooting efficiency, which restricts their clonal propagation. Therefore, we investigated the molecular basis of adventitious rooting in Populus and the model plant Arabidopsis. The production of adventitious roots (ARs) in tree cuttings is initiated from the basal stem region, and involves the interplay of several endogenous and exogenous factors. The roles of several hormones in this process have been characterized, but the effects of GAs have not been fully investigated. Here, we show that a GA treatment negatively affects the numbers of ARs produced by wild-type hybrid aspen cuttings. Furthermore, both hybrid aspen plants and intact Arabidopsis seedlings overexpressing AtGA20ox1, PttGID1.1 or PttGID1.3 genes (with a 35S promoter) produce few ARs, although ARs develop from the basal stem region of hybrid aspen and the hypocotyl of Arabidopsis. In Arabidopsis, auxin and strigolactones are known to affect AR formation. Our data show that the inhibitory effect of GA treatment on adventitious rooting is not mediated by perturbation of the auxin signalling pathway, or of the strigolactone biosynthetic and signalling pathways. Instead, GAs appear to act by perturbing polar auxin transport, in particular auxin efflux in hybrid aspen, and both efflux and influx in Arabidopsis. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">24547703</PMID><DateCompleted><Year>2015</Year><Month>05</Month><Day>22</Day></DateCompleted><DateRevised><Year>2014</Year><Month>04</Month><Day>25</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-313X</ISSN><JournalIssue CitedMedium="Internet"><Volume>78</Volume><Issue>3</Issue><PubDate><Year>2014</Year><Month>May</Month></PubDate></JournalIssue><Title>The Plant journal : for cell and molecular biology</Title><ISOAbbreviation>Plant J</ISOAbbreviation></Journal><ArticleTitle>Gibberellins inhibit adventitious rooting in hybrid aspen and Arabidopsis by affecting auxin transport.</ArticleTitle><Pagination><MedlinePgn>372-84</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/tpj.12478</ELocationID><Abstract><AbstractText>Knowledge of processes involved in adventitious rooting is important to improve both fundamental understanding of plant physiology and the propagation of numerous plants. Hybrid aspen (Populus tremula × tremuloïdes) plants overexpressing a key gibberellin (GA) biosynthesis gene (AtGA20ox1) grow rapidly but have poor rooting efficiency, which restricts their clonal propagation. Therefore, we investigated the molecular basis of adventitious rooting in Populus and the model plant Arabidopsis. The production of adventitious roots (ARs) in tree cuttings is initiated from the basal stem region, and involves the interplay of several endogenous and exogenous factors. The roles of several hormones in this process have been characterized, but the effects of GAs have not been fully investigated. Here, we show that a GA treatment negatively affects the numbers of ARs produced by wild-type hybrid aspen cuttings. Furthermore, both hybrid aspen plants and intact Arabidopsis seedlings overexpressing AtGA20ox1, PttGID1.1 or PttGID1.3 genes (with a 35S promoter) produce few ARs, although ARs develop from the basal stem region of hybrid aspen and the hypocotyl of Arabidopsis. In Arabidopsis, auxin and strigolactones are known to affect AR formation. Our data show that the inhibitory effect of GA treatment on adventitious rooting is not mediated by perturbation of the auxin signalling pathway, or of the strigolactone biosynthetic and signalling pathways. Instead, GAs appear to act by perturbing polar auxin transport, in particular auxin efflux in hybrid aspen, and both efflux and influx in Arabidopsis. </AbstractText><CopyrightInformation>© 2014 The Authors The Plant Journal © 2014 John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Mauriat</LastName><ForeName>Mélanie</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 87, Umeå, Sweden; Institut National de la Recherche Agronomique, UMR 1202 BIOGECO, 69 route d'Arcachon, F-33612, Cestas Cedex, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Petterle</LastName><ForeName>Anna</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Bellini</LastName><ForeName>Catherine</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Moritz</LastName><ForeName>Thomas</ForeName><Initials>T</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>04</Month><Day>02</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Plant J</MedlineTA><NlmUniqueID>9207397</NlmUniqueID><ISSNLinking>0960-7412</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D029681">Arabidopsis Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D003517">Cyclopentanes</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005875">Gibberellins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D007210">Indoleacetic Acids</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="C470445">MAX1 protein, Arabidopsis</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D054883">Oxylipins</NameOfSubstance></Chemical><Chemical><RegistryNumber>6RI5N05OWW</RegistryNumber><NameOfSubstance UI="C011006">jasmonic acid</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 1.-</RegistryNumber><NameOfSubstance UI="D006899">Mixed Function Oxygenases</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 1.13.-</RegistryNumber><NameOfSubstance UI="C475746">MAX4 protein, Arabidopsis</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 1.13.-</RegistryNumber><NameOfSubstance UI="D010105">Oxygenases</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D017360" MajorTopicYN="N">Arabidopsis</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D029681" MajorTopicYN="N">Arabidopsis Proteins</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001692" MajorTopicYN="N">Biological Transport</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002678" MajorTopicYN="N">Chimera</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003517" MajorTopicYN="N">Cyclopentanes</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018506" MajorTopicYN="N">Gene Expression Regulation, Plant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005875" MajorTopicYN="N">Gibberellins</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018546" MajorTopicYN="N">Hypocotyl</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007210" MajorTopicYN="N">Indoleacetic Acids</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006899" MajorTopicYN="N">Mixed Function Oxygenases</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010105" MajorTopicYN="N">Oxygenases</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D054883" MajorTopicYN="N">Oxylipins</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D030821" MajorTopicYN="N">Plants, Genetically Modified</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Arabidopsis</Keyword><Keyword MajorTopicYN="N">Populus</Keyword><Keyword MajorTopicYN="N">adventitious roots</Keyword><Keyword MajorTopicYN="N">auxin</Keyword><Keyword MajorTopicYN="N">auxin transport</Keyword><Keyword MajorTopicYN="N">gibberellins</Keyword><Keyword MajorTopicYN="N">jasmonate</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2013</Year><Month>06</Month><Day>27</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2014</Year><Month>01</Month><Day>29</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2014</Year><Month>02</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>2</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>2</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2015</Year><Month>5</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">24547703</ArticleId><ArticleId IdType="doi">10.1111/tpj.12478</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li></country><region><li>Aquitaine</li><li>Nouvelle-Aquitaine</li></region><settlement><li>Cestas</li></settlement></list><tree><noCountry><name sortKey="Bellini, Catherine" sort="Bellini, Catherine" uniqKey="Bellini C" first="Catherine" last="Bellini">Catherine Bellini</name><name sortKey="Moritz, Thomas" sort="Moritz, Thomas" uniqKey="Moritz T" first="Thomas" last="Moritz">Thomas Moritz</name><name sortKey="Petterle, Anna" sort="Petterle, Anna" uniqKey="Petterle A" first="Anna" last="Petterle">Anna Petterle</name></noCountry><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Mauriat, Melanie" sort="Mauriat, Melanie" uniqKey="Mauriat M" first="Mélanie" last="Mauriat">Mélanie Mauriat</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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