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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">The Pea DELLA Proteins LA and CRY Are Important Regulators of Gibberellin Synthesis and Root Growth<xref ref-type="fn" rid="fn1">[W]</xref>
<xref ref-type="fn" rid="fn2">[OA]</xref>
</title>
<author><name sortKey="Weston, Diana E" sort="Weston, Diana E" uniqKey="Weston D" first="Diana E." last="Weston">Diana E. Weston</name>
</author>
<author><name sortKey="Elliott, Robert C" sort="Elliott, Robert C" uniqKey="Elliott R" first="Robert C." last="Elliott">Robert C. Elliott</name>
</author>
<author><name sortKey="Lester, Diane R" sort="Lester, Diane R" uniqKey="Lester D" first="Diane R." last="Lester">Diane R. Lester</name>
</author>
<author><name sortKey="Rameau, Catherine" sort="Rameau, Catherine" uniqKey="Rameau C" first="Catherine" last="Rameau">Catherine Rameau</name>
</author>
<author><name sortKey="Reid, James B" sort="Reid, James B" uniqKey="Reid J" first="James B." last="Reid">James B. Reid</name>
</author>
<author><name sortKey="Murfet, Ian C" sort="Murfet, Ian C" uniqKey="Murfet I" first="Ian C." last="Murfet">Ian C. Murfet</name>
</author>
<author><name sortKey="Ross, John J" sort="Ross, John J" uniqKey="Ross J" first="John J." last="Ross">John J. Ross</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">18375599</idno>
<idno type="pmc">2330316</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2330316</idno>
<idno type="RBID">PMC:2330316</idno>
<idno type="doi">10.1104/pp.108.115808</idno>
<date when="2008">2008</date>
<idno type="wicri:Area/Pmc/Corpus">001054</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">001054</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">The Pea DELLA Proteins LA and CRY Are Important Regulators of Gibberellin Synthesis and Root Growth<xref ref-type="fn" rid="fn1">[W]</xref>
<xref ref-type="fn" rid="fn2">[OA]</xref>
</title>
<author><name sortKey="Weston, Diana E" sort="Weston, Diana E" uniqKey="Weston D" first="Diana E." last="Weston">Diana E. Weston</name>
</author>
<author><name sortKey="Elliott, Robert C" sort="Elliott, Robert C" uniqKey="Elliott R" first="Robert C." last="Elliott">Robert C. Elliott</name>
</author>
<author><name sortKey="Lester, Diane R" sort="Lester, Diane R" uniqKey="Lester D" first="Diane R." last="Lester">Diane R. Lester</name>
</author>
<author><name sortKey="Rameau, Catherine" sort="Rameau, Catherine" uniqKey="Rameau C" first="Catherine" last="Rameau">Catherine Rameau</name>
</author>
<author><name sortKey="Reid, James B" sort="Reid, James B" uniqKey="Reid J" first="James B." last="Reid">James B. Reid</name>
</author>
<author><name sortKey="Murfet, Ian C" sort="Murfet, Ian C" uniqKey="Murfet I" first="Ian C." last="Murfet">Ian C. Murfet</name>
</author>
<author><name sortKey="Ross, John J" sort="Ross, John J" uniqKey="Ross J" first="John J." last="Ross">John J. Ross</name>
</author>
</analytic>
<series><title level="j">Plant Physiology</title>
<idno type="ISSN">0032-0889</idno>
<idno type="eISSN">1532-2548</idno>
<imprint><date when="2008">2008</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"><p>The theory that bioactive gibberellins (GAs) act as inhibitors of inhibitors of plant growth was based originally on the slender pea (<italic>Pisum sativum</italic>
) mutant (genotype <italic>la cry-s</italic>
), but the molecular nature of this mutant has remained obscure. Here we show that the genes <italic>LA</italic>
and <italic>CRY</italic>
encode DELLA proteins, previously characterized in other species (Arabidopsis [<italic>Arabidopsis thaliana</italic>
] and several grasses) as repressors of growth, which are destabilized by GAs. Mutations <italic>la</italic>
and <italic>cry-s</italic>
encode nonfunctional proteins, accounting for the fact that <italic>la cry-s</italic>
plants are extremely elongated, or slender. We use the <italic>la</italic>
and <italic>cry-s</italic>
mutations to show that in roots, DELLA proteins effectively promote the expression of GA synthesis genes, as well as inhibit elongation. We show also that one of the DELLA-regulated genes is a second member of the pea GA 3-oxidase family, and that this gene appears to play a major role in pea roots.</p>
</div>
</front>
</TEI>
<pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Plant Physiol</journal-id>
<journal-id journal-id-type="publisher-id">plantphysiol</journal-id>
<journal-title>Plant Physiology</journal-title>
<issn pub-type="ppub">0032-0889</issn>
<issn pub-type="epub">1532-2548</issn>
<publisher><publisher-name>American Society of Plant Biologists</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">18375599</article-id>
<article-id pub-id-type="pmc">2330316</article-id>
<article-id pub-id-type="publisher-id">115808</article-id>
<article-id pub-id-type="doi">10.1104/pp.108.115808</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject>
<subj-group><subject>Development and Hormone Action</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group><article-title>The Pea DELLA Proteins LA and CRY Are Important Regulators of Gibberellin Synthesis and Root Growth<xref ref-type="fn" rid="fn1">[W]</xref>
<xref ref-type="fn" rid="fn2">[OA]</xref>
</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Weston</surname>
<given-names>Diana E.</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Elliott</surname>
<given-names>Robert C.</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Lester</surname>
<given-names>Diane R.</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Rameau</surname>
<given-names>Catherine</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Reid</surname>
<given-names>James B.</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Murfet</surname>
<given-names>Ian C.</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Ross</surname>
<given-names>John J.</given-names>
</name>
<xref ref-type="corresp" rid="cor1">*</xref>
</contrib>
</contrib-group>
<aff id="N0x3598170N0x482ce50">School of Plant Science, University of Tasmania, Hobart, Tasmania 7001, Australia (D.E.W., R.C.E., D.R.L., J.B.R., I.C.M., J.J.R.); and INRA, Institut Jean-Pierre Bourgin, Station de Génétique et d'Amélioration des Plantes, F–78000 Versailles, France (C.R.)</aff>
<author-notes><fn id="cor1"><label>*</label>
<p>Corresponding author; e-mail <email>john.ross@utas.edu.au</email>
.</p>
</fn>
</author-notes>
<pub-date pub-type="ppub"><month>5</month>
<year>2008</year>
</pub-date>
<volume>147</volume>
<issue>1</issue>
<fpage>199</fpage>
<lpage>205</lpage>
<history><date date-type="received"><day>8</day>
<month>1</month>
<year>2008</year>
</date>
<date date-type="accepted"><day>26</day>
<month>3</month>
<year>2008</year>
</date>
</history>
<permissions><copyright-statement>Copyright © 2008, American Society of Plant Biologists</copyright-statement>
</permissions>
<abstract><p>The theory that bioactive gibberellins (GAs) act as inhibitors of inhibitors of plant growth was based originally on the slender pea (<italic>Pisum sativum</italic>
) mutant (genotype <italic>la cry-s</italic>
), but the molecular nature of this mutant has remained obscure. Here we show that the genes <italic>LA</italic>
and <italic>CRY</italic>
encode DELLA proteins, previously characterized in other species (Arabidopsis [<italic>Arabidopsis thaliana</italic>
] and several grasses) as repressors of growth, which are destabilized by GAs. Mutations <italic>la</italic>
and <italic>cry-s</italic>
encode nonfunctional proteins, accounting for the fact that <italic>la cry-s</italic>
plants are extremely elongated, or slender. We use the <italic>la</italic>
and <italic>cry-s</italic>
mutations to show that in roots, DELLA proteins effectively promote the expression of GA synthesis genes, as well as inhibit elongation. We show also that one of the DELLA-regulated genes is a second member of the pea GA 3-oxidase family, and that this gene appears to play a major role in pea roots.</p>
</abstract>
</article-meta>
<notes><fn-group><fn><p>The author responsible for distribution of materials integral to the findings presented in this article in accordance with the policy described in the Instructions for Authors (<ext-link ext-link-type="uri" xlink:href="www.plantphysiol.org">www.plantphysiol.org</ext-link>
) is: John J. Ross (<email>john.ross@utas.edu.au</email>
).</p>
</fn>
<fn id="fn1"><label>[W]</label>
<p>The online version of this article contains Web-only data.</p>
</fn>
<fn id="fn2"><label>[OA]</label>
<p>Open Access articles can be viewed online without a subscription.</p>
</fn>
<fn><p><ext-link ext-link-type="uri" xlink:href="www.plantphysiol.org/cgi/doi/10.1104/pp.108.115808">www.plantphysiol.org/cgi/doi/10.1104/pp.108.115808</ext-link>
</p>
</fn>
</fn-group>
</notes>
</front>
</pmc>
</record>
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