Gibberellins in shoots and developing capsules of Populus species.
Identifieur interne : 004681 ( Main/Corpus ); précédent : 004680; suivant : 004682Gibberellins in shoots and developing capsules of Populus species.
Auteurs : David W. Pearce ; Oliver E. Hutt ; Stewart B. Rood ; Lewis N. ManderSource :
- Phytochemistry [ 0031-9422 ] ; 2002.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Gibberellins.
- chemistry : Plant Shoots, Salicaceae.
- Gas Chromatography-Mass Spectrometry.
Abstract
Extracts of stems of growing shoots of Populus deltoides and P. trichocarpa, and developing capsules of P. deltoides were analysed for gibberellins (GAs) by gas chromatography-mass spectrometry. The following known GAs were identified by comparison of their Kovats retention indices (KRIs) and mass spectra with those of standards: GA1, GA8, GA9, GA19, GA20, 16 beta,17-dihydro-17-hydroxy GA20, GA23, GA28, GA29, GA34, GA44, and GA97. Several of these have not been previously reported from Populus. In addition, two new GAs were identified as 12 beta-hydroxy GA53 (GA127) and 16 beta,17-dihydro-17-hydroxy GA53 and their structures were confirmed by partial synthesis. Evidence was found of 16,17-dihydro-16,17-dihydroxy GA9, 16,17-dihydro-16,17-dihydroxy GA12, 12-hydroxy GA14, and GA34-catabolite by comparison of mass spectra and KRIs with published data. Several putative GAs (hydroxy- and dihydroxy-GA12-like) were also found. The catabolites of active GAs or of key precursors, hydroxylated at C-2 in stems and either C-2, C-12, C-17, or C-16,17 in capsules, were the major proportion of the GAs.
DOI: 10.1016/s0031-9422(02)00009-2
PubMed: 11867101
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pubmed:11867101Le document en format XML
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<author><name sortKey="Pearce, David W" sort="Pearce, David W" uniqKey="Pearce D" first="David W" last="Pearce">David W. Pearce</name>
<affiliation><nlm:affiliation>Department of Biological Sciences, University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada. pearce@uleth.ca</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Hutt, Oliver E" sort="Hutt, Oliver E" uniqKey="Hutt O" first="Oliver E" last="Hutt">Oliver E. Hutt</name>
</author>
<author><name sortKey="Rood, Stewart B" sort="Rood, Stewart B" uniqKey="Rood S" first="Stewart B" last="Rood">Stewart B. Rood</name>
</author>
<author><name sortKey="Mander, Lewis N" sort="Mander, Lewis N" uniqKey="Mander L" first="Lewis N" last="Mander">Lewis N. Mander</name>
</author>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Gibberellins in shoots and developing capsules of Populus species.</title>
<author><name sortKey="Pearce, David W" sort="Pearce, David W" uniqKey="Pearce D" first="David W" last="Pearce">David W. Pearce</name>
<affiliation><nlm:affiliation>Department of Biological Sciences, University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada. pearce@uleth.ca</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Hutt, Oliver E" sort="Hutt, Oliver E" uniqKey="Hutt O" first="Oliver E" last="Hutt">Oliver E. Hutt</name>
</author>
<author><name sortKey="Rood, Stewart B" sort="Rood, Stewart B" uniqKey="Rood S" first="Stewart B" last="Rood">Stewart B. Rood</name>
</author>
<author><name sortKey="Mander, Lewis N" sort="Mander, Lewis N" uniqKey="Mander L" first="Lewis N" last="Mander">Lewis N. Mander</name>
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<series><title level="j">Phytochemistry</title>
<idno type="ISSN">0031-9422</idno>
<imprint><date when="2002" type="published">2002</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Gas Chromatography-Mass Spectrometry (MeSH)</term>
<term>Gibberellins (analysis)</term>
<term>Plant Shoots (chemistry)</term>
<term>Salicaceae (chemistry)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Gibberellins</term>
</keywords>
<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Plant Shoots</term>
<term>Salicaceae</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Gas Chromatography-Mass Spectrometry</term>
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</textClass>
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<front><div type="abstract" xml:lang="en">Extracts of stems of growing shoots of Populus deltoides and P. trichocarpa, and developing capsules of P. deltoides were analysed for gibberellins (GAs) by gas chromatography-mass spectrometry. The following known GAs were identified by comparison of their Kovats retention indices (KRIs) and mass spectra with those of standards: GA1, GA8, GA9, GA19, GA20, 16 beta,17-dihydro-17-hydroxy GA20, GA23, GA28, GA29, GA34, GA44, and GA97. Several of these have not been previously reported from Populus. In addition, two new GAs were identified as 12 beta-hydroxy GA53 (GA127) and 16 beta,17-dihydro-17-hydroxy GA53 and their structures were confirmed by partial synthesis. Evidence was found of 16,17-dihydro-16,17-dihydroxy GA9, 16,17-dihydro-16,17-dihydroxy GA12, 12-hydroxy GA14, and GA34-catabolite by comparison of mass spectra and KRIs with published data. Several putative GAs (hydroxy- and dihydroxy-GA12-like) were also found. The catabolites of active GAs or of key precursors, hydroxylated at C-2 in stems and either C-2, C-12, C-17, or C-16,17 in capsules, were the major proportion of the GAs.</div>
</front>
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<DateCompleted><Year>2002</Year>
<Month>09</Month>
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<DateRevised><Year>2019</Year>
<Month>09</Month>
<Day>01</Day>
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<Article PubModel="Print"><Journal><ISSN IssnType="Print">0031-9422</ISSN>
<JournalIssue CitedMedium="Print"><Volume>59</Volume>
<Issue>6</Issue>
<PubDate><Year>2002</Year>
<Month>Mar</Month>
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<Title>Phytochemistry</Title>
<ISOAbbreviation>Phytochemistry</ISOAbbreviation>
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<ArticleTitle>Gibberellins in shoots and developing capsules of Populus species.</ArticleTitle>
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<Abstract><AbstractText>Extracts of stems of growing shoots of Populus deltoides and P. trichocarpa, and developing capsules of P. deltoides were analysed for gibberellins (GAs) by gas chromatography-mass spectrometry. The following known GAs were identified by comparison of their Kovats retention indices (KRIs) and mass spectra with those of standards: GA1, GA8, GA9, GA19, GA20, 16 beta,17-dihydro-17-hydroxy GA20, GA23, GA28, GA29, GA34, GA44, and GA97. Several of these have not been previously reported from Populus. In addition, two new GAs were identified as 12 beta-hydroxy GA53 (GA127) and 16 beta,17-dihydro-17-hydroxy GA53 and their structures were confirmed by partial synthesis. Evidence was found of 16,17-dihydro-16,17-dihydroxy GA9, 16,17-dihydro-16,17-dihydroxy GA12, 12-hydroxy GA14, and GA34-catabolite by comparison of mass spectra and KRIs with published data. Several putative GAs (hydroxy- and dihydroxy-GA12-like) were also found. The catabolites of active GAs or of key precursors, hydroxylated at C-2 in stems and either C-2, C-12, C-17, or C-16,17 in capsules, were the major proportion of the GAs.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Pearce</LastName>
<ForeName>David W</ForeName>
<Initials>DW</Initials>
<AffiliationInfo><Affiliation>Department of Biological Sciences, University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada. pearce@uleth.ca</Affiliation>
</AffiliationInfo>
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<Author ValidYN="Y"><LastName>Hutt</LastName>
<ForeName>Oliver E</ForeName>
<Initials>OE</Initials>
</Author>
<Author ValidYN="Y"><LastName>Rood</LastName>
<ForeName>Stewart B</ForeName>
<Initials>SB</Initials>
</Author>
<Author ValidYN="Y"><LastName>Mander</LastName>
<ForeName>Lewis N</ForeName>
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<Language>eng</Language>
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<MeshHeadingList><MeshHeading><DescriptorName UI="D008401" MajorTopicYN="N">Gas Chromatography-Mass Spectrometry</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D005875" MajorTopicYN="N">Gibberellins</DescriptorName>
<QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D018520" MajorTopicYN="N">Plant Shoots</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D031308" MajorTopicYN="N">Salicaceae</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName>
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