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Sucrose importation into laticifers of Hevea brasiliensis, in relation to ethylene stimulation of latex production

Identifieur interne : 000A20 ( Ncbi/Curation ); précédent : 000A19; suivant : 000A21

Sucrose importation into laticifers of Hevea brasiliensis, in relation to ethylene stimulation of latex production

Auteurs : Anaïs Dusotoit-Coucaud [France] ; Nicole Brunel [France] ; Panida Kongsawadworakul [Thaïlande] ; Unchera Viboonjun [Thaïlande] ; André Lacointe [France] ; Jean-Louis Julien [France] ; Hervé Chrestin [Thaïlande, France] ; Soulaïman Sakr [France]

Source :

Annals of Botany [ 0305-7364 ] ; 2009.

RBID : PMC:2729633

Abstract

Background and Aims

The major economic product of Hevea brasiliensis is a rubber-containing cytoplasm (latex), which flows out of laticifers (latex cells) when the bark is tapped. The latex yield is stimulated by ethylene. Sucrose, the unique precursor of rubber synthesis, must cross the plasma membrane through specific sucrose transporters before being metabolized in the laticifers. The relative importance of sucrose transporters in determining latex yield is unknown. Here, the effects of ethylene (by application of Ethrel^®) on sucrose transporter gene expression in the inner bark tissues and latex cells of H. brasiliensis are described.

Methods

Experiments, including cloning sucrose transporters, real time RT-PCR and in situ hybridization, were carried out on virgin (untapped) trees, treated or untreated with the latex yield stimulant Ethrel.

Key Results

Seven putative full-length cDNAs of sucrose transporters were cloned from a latex-specific cDNA library. These transporters belong to all SUT (sucrose transporter) groups and differ by their basal gene expression in latex and inner soft bark, with a predominance of HbSUT1A and HbSUT1B. Of these sucrose transporters, only HbSUT1A and HbSUT2A were distinctly increased by ethylene. Moreover, this increase was shown to be specific to laticifers and to ethylene application.

Conclusion

The data and all previous information on sucrose transport show that HbSUT1A and HbSUT2A are related to the increase in sucrose import into laticifers, required for the stimulation of latex yield by ethylene in virgin trees.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2729633

DOI: 10.1093/aob/mcp150
PubMed: 19567416
PubMed Central: 2729633

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, in relation to ethylene stimulation of latex production</title>
<author><name sortKey="Dusotoit Coucaud, Anais" sort="Dusotoit Coucaud, Anais" uniqKey="Dusotoit Coucaud A" first="Anaïs" last="Dusotoit-Coucaud">Anaïs Dusotoit-Coucaud</name>
<affiliation wicri:level="1"><nlm:aff id="af1"><addr-line>UMR 547 PIAF, INRA</addr-line>
,<institution>Université Blaise Pascal</institution>
,<addr-line>24 avenue des Landais, 63177 Aubière Cedex</addr-line>
,<country>France</country>
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<country xml:lang="fr">France</country>
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<author><name sortKey="Brunel, Nicole" sort="Brunel, Nicole" uniqKey="Brunel N" first="Nicole" last="Brunel">Nicole Brunel</name>
<affiliation wicri:level="1"><nlm:aff id="af1"><addr-line>UMR 547 PIAF, INRA</addr-line>
,<institution>Université Blaise Pascal</institution>
,<addr-line>24 avenue des Landais, 63177 Aubière Cedex</addr-line>
,<country>France</country>
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<country xml:lang="fr">France</country>
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<author><name sortKey="Kongsawadworakul, Panida" sort="Kongsawadworakul, Panida" uniqKey="Kongsawadworakul P" first="Panida" last="Kongsawadworakul">Panida Kongsawadworakul</name>
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,<country>Thailand</country>
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<country xml:lang="fr">Thaïlande</country>
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<author><name sortKey="Viboonjun, Unchera" sort="Viboonjun, Unchera" uniqKey="Viboonjun U" first="Unchera" last="Viboonjun">Unchera Viboonjun</name>
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,<country>Thailand</country>
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<country xml:lang="fr">Thaïlande</country>
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<author><name sortKey="Lacointe, Andre" sort="Lacointe, Andre" uniqKey="Lacointe A" first="André" last="Lacointe">André Lacointe</name>
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,<country>France</country>
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<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<author><name sortKey="Julien, Jean Louis" sort="Julien, Jean Louis" uniqKey="Julien J" first="Jean-Louis" last="Julien">Jean-Louis Julien</name>
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,<institution>Université Blaise Pascal</institution>
,<addr-line>24 avenue des Landais, 63177 Aubière Cedex</addr-line>
,<country>France</country>
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<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<author><name sortKey="Chrestin, Herve" sort="Chrestin, Herve" uniqKey="Chrestin H" first="Hervé" last="Chrestin">Hervé Chrestin</name>
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,<institution>Mahidol University</institution>
,<addr-line>Rama 6 Road, Bangkok 10400</addr-line>
,<country>Thailand</country>
</nlm:aff>
<country xml:lang="fr">Thaïlande</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<affiliation wicri:level="1"><nlm:aff id="af3"><institution>Institut de Recherche pour le Developpement (IRD)</institution>
,<addr-line>UR 060 CLIFA/CEFE-CNRS, 1919 route de Mende, F34293, Montpellier Cedex 5</addr-line>
,<country>France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<author><name sortKey="Sakr, Soulaiman" sort="Sakr, Soulaiman" uniqKey="Sakr S" first="Soulaïman" last="Sakr">Soulaïman Sakr</name>
<affiliation wicri:level="1"><nlm:aff id="af1"><addr-line>UMR 547 PIAF, INRA</addr-line>
,<institution>Université Blaise Pascal</institution>
,<addr-line>24 avenue des Landais, 63177 Aubière Cedex</addr-line>
,<country>France</country>
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<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<affiliation wicri:level="1"><nlm:aff id="af4"><addr-line>Agrocampus Ouest, Centre d'Angers, UMR SAGAH, IFR QUASAV 149, 2 rue le Nôtre, 49045 Angers Cedex</addr-line>
,<country>France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Sucrose importation into laticifers of <italic>Hevea brasiliensis</italic>
, in relation to ethylene stimulation of latex production</title>
<author><name sortKey="Dusotoit Coucaud, Anais" sort="Dusotoit Coucaud, Anais" uniqKey="Dusotoit Coucaud A" first="Anaïs" last="Dusotoit-Coucaud">Anaïs Dusotoit-Coucaud</name>
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,<institution>Université Blaise Pascal</institution>
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,<country>France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<author><name sortKey="Brunel, Nicole" sort="Brunel, Nicole" uniqKey="Brunel N" first="Nicole" last="Brunel">Nicole Brunel</name>
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,<country>France</country>
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<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<author><name sortKey="Kongsawadworakul, Panida" sort="Kongsawadworakul, Panida" uniqKey="Kongsawadworakul P" first="Panida" last="Kongsawadworakul">Panida Kongsawadworakul</name>
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,<institution>Mahidol University</institution>
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,<country>Thailand</country>
</nlm:aff>
<country xml:lang="fr">Thaïlande</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<author><name sortKey="Viboonjun, Unchera" sort="Viboonjun, Unchera" uniqKey="Viboonjun U" first="Unchera" last="Viboonjun">Unchera Viboonjun</name>
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,<institution>Mahidol University</institution>
,<addr-line>Rama 6 Road, Bangkok 10400</addr-line>
,<country>Thailand</country>
</nlm:aff>
<country xml:lang="fr">Thaïlande</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<author><name sortKey="Lacointe, Andre" sort="Lacointe, Andre" uniqKey="Lacointe A" first="André" last="Lacointe">André Lacointe</name>
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,<institution>Université Blaise Pascal</institution>
,<addr-line>24 avenue des Landais, 63177 Aubière Cedex</addr-line>
,<country>France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
</affiliation>
</author>
<author><name sortKey="Julien, Jean Louis" sort="Julien, Jean Louis" uniqKey="Julien J" first="Jean-Louis" last="Julien">Jean-Louis Julien</name>
<affiliation wicri:level="1"><nlm:aff id="af1"><addr-line>UMR 547 PIAF, INRA</addr-line>
,<institution>Université Blaise Pascal</institution>
,<addr-line>24 avenue des Landais, 63177 Aubière Cedex</addr-line>
,<country>France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<author><name sortKey="Chrestin, Herve" sort="Chrestin, Herve" uniqKey="Chrestin H" first="Hervé" last="Chrestin">Hervé Chrestin</name>
<affiliation wicri:level="1"><nlm:aff id="af2"><addr-line>Department of Plant Science, Faculty of Science</addr-line>
,<institution>Mahidol University</institution>
,<addr-line>Rama 6 Road, Bangkok 10400</addr-line>
,<country>Thailand</country>
</nlm:aff>
<country xml:lang="fr">Thaïlande</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<affiliation wicri:level="1"><nlm:aff id="af3"><institution>Institut de Recherche pour le Developpement (IRD)</institution>
,<addr-line>UR 060 CLIFA/CEFE-CNRS, 1919 route de Mende, F34293, Montpellier Cedex 5</addr-line>
,<country>France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
</affiliation>
</author>
<author><name sortKey="Sakr, Soulaiman" sort="Sakr, Soulaiman" uniqKey="Sakr S" first="Soulaïman" last="Sakr">Soulaïman Sakr</name>
<affiliation wicri:level="1"><nlm:aff id="af1"><addr-line>UMR 547 PIAF, INRA</addr-line>
,<institution>Université Blaise Pascal</institution>
,<addr-line>24 avenue des Landais, 63177 Aubière Cedex</addr-line>
,<country>France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
</affiliation>
<affiliation wicri:level="1"><nlm:aff id="af4"><addr-line>Agrocampus Ouest, Centre d'Angers, UMR SAGAH, IFR QUASAV 149, 2 rue le Nôtre, 49045 Angers Cedex</addr-line>
,<country>France</country>
</nlm:aff>
<country xml:lang="fr">France</country>
<wicri:regionArea># see nlm:aff country strict</wicri:regionArea>
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<series><title level="j">Annals of Botany</title>
<idno type="ISSN">0305-7364</idno>
<idno type="eISSN">1095-8290</idno>
<imprint><date when="2009">2009</date>
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<front><div type="abstract" xml:lang="en"><sec><title>Background and Aims</title>
<p>The major economic product of <italic>Hevea brasiliensis</italic>
 is a rubber-containing cytoplasm (latex), which flows out of laticifers (latex cells) when the bark is tapped. The latex yield is stimulated by ethylene. Sucrose, the unique precursor of rubber synthesis, must cross the plasma membrane through specific sucrose transporters before being metabolized in the laticifers. The relative importance of sucrose transporters in determining latex yield is unknown. Here, the effects of ethylene (by application of Ethrel<sup>®</sup>
) on sucrose transporter gene expression in the inner bark tissues and latex cells of <italic>H. brasiliensis</italic>
 are described.</p>
</sec>
<sec><title>Methods</title>
<p>Experiments, including cloning sucrose transporters, real time RT-PCR and <italic>in situ</italic>
 hybridization, were carried out on virgin (untapped) trees, treated or untreated with the latex yield stimulant Ethrel.</p>
</sec>
<sec><title>Key Results</title>
<p>Seven putative full-length cDNAs of sucrose transporters were cloned from a latex-specific cDNA library. These transporters belong to all SUT (sucrose transporter) groups and differ by their basal gene expression in latex and inner soft bark, with a predominance of <italic>HbSUT1A</italic>
 and <italic>HbSUT1B</italic>
. Of these sucrose transporters, only <italic>HbSUT1A</italic>
 and <italic>HbSUT2A</italic>
 were distinctly increased by ethylene. Moreover, this increase was shown to be specific to laticifers and to ethylene application.</p>
</sec>
<sec><title>Conclusion</title>
<p>The data and all previous information on sucrose transport show that <italic>HbSUT1A</italic>
 and <italic>HbSUT2A</italic>
 are related to the increase in sucrose import into laticifers, required for the stimulation of latex yield by ethylene in virgin trees.</p>
</sec>
</div>
</front>
</TEI>
</record>

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Sucrose importation into laticifers of Hevea brasiliensis, in relation to ethylene stimulation of latex production

Sucrose importation into laticifers of Hevea brasiliensis, in relation to ethylene stimulation of latex production

Source :

Abstract

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