Changes in citrus leaf flavonoid concentrations resulting from blight-induced zinc-deficiency
Identifieur interne : 002F66 ( Main/Exploration ); précédent : 002F65; suivant : 002F67Changes in citrus leaf flavonoid concentrations resulting from blight-induced zinc-deficiency
Auteurs : John A. Manthey [États-Unis] ; Karel Grohmann [États-Unis] ; Mark A. Berhow [États-Unis] ; Brent Tisserat [États-Unis]Source :
- Plant Physiology and Biochemistry [ 0981-9428 ] ; 2000.
Descripteurs français
- Pascal (Inist)
- Wicri :
English descriptors
- KwdEn :
- AP, apigenin, Biological accumulation, Biosynthesis, C-glycosylflavone, Citrus paradisi, Citrus sinensis, Correlation, DSM, diosmetin, Deficiency, FW, fresh weight, Flavonoid, Glycoside, HPLC, high pressure liquid chromatography, Metabolic pathway, Molecular structure, Phenols, Plant leaf, Rutaceae, UV, ultraviolet, Zinc, glycosidation, hesperidin, naringin, orange.
Abstract
Increased flavonoid concentrations were found to correlate with the elevated levels of leaf phenolic compounds occurring in blight-induced zinc-deficient citrus. In orange (Citrus sinensis L.) leaves, the increases occurred primarily in hesperidin and diosmin, whereas in grapefruit (C. paradisi Macf.) the largest increases occurred in naringin and rhoifolin. Zinc-deficiency occurring in the blighted citrus leaves appeared to be the important contributing factor to the increased flavonoid content. Although the leaves from trees with blight were typically smaller than leaves from unaffected trees, the increased flavonoid content was not significantly due to a concentration effect. Large differences occurred in the percent increases in concentrations of certain citrus leaf flavonoids. While large increases occurred for a number of flavanone and flavone glycosides, much smaller percent increases occurred for other minor flavone glycosides, and the polymethoxyflavone aglycones. The parallel increases occurring in the concentrations of certain flavone glycosides and their flavanone analogs provide a further indication that flavanone glycosides are precursors in the biosynthesis of flavone glycosides in citrus.
Url:
DOI: 10.1016/S0981-9428(00)00748-8
Affiliations:
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Le document en format XML
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University St., Peoria</wicri:cityArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Plant Physiology and Biochemistry</title><title level="j" type="abbrev">PLAPHY</title><idno type="ISSN">0981-9428</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2000">2000</date><biblScope unit="volume">38</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="333">333</biblScope><biblScope unit="page" to="343">343</biblScope></imprint><idno type="ISSN">0981-9428</idno></series><idno type="istex">208A0D3FF361DF070E52FB6E64F9A297EC47658F</idno><idno type="DOI">10.1016/S0981-9428(00)00748-8</idno><idno type="PII">S0981-9428(00)00748-8</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0981-9428</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>AP, apigenin</term><term>Biological accumulation</term><term>Biosynthesis</term><term>C-glycosylflavone</term><term>Citrus paradisi</term><term>Citrus sinensis</term><term>Correlation</term><term>DSM, diosmetin</term><term>Deficiency</term><term>FW, fresh weight</term><term>Flavonoid</term><term>Glycoside</term><term>HPLC, high pressure liquid chromatography</term><term>Metabolic pathway</term><term>Molecular structure</term><term>Phenols</term><term>Plant leaf</term><term>Rutaceae</term><term>UV, ultraviolet</term><term>Zinc</term><term>glycosidation</term><term>hesperidin</term><term>naringin</term><term>orange</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Accumulation biologique</term><term>Citrus paradisi</term><term>Citrus sinensis</term><term>Corrélation</term><term>Déficit</term><term>Feuille végétal</term><term>Flavonoïde</term><term>Glycoside</term><term>Phénols</term><term>Structure moléculaire</term><term>Voie métabolique</term><term>Zinc</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Déficit</term><term>Zinc</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Increased flavonoid concentrations were found to correlate with the elevated levels of leaf phenolic compounds occurring in blight-induced zinc-deficient citrus. In orange (Citrus sinensis L.) leaves, the increases occurred primarily in hesperidin and diosmin, whereas in grapefruit (C. paradisi Macf.) the largest increases occurred in naringin and rhoifolin. Zinc-deficiency occurring in the blighted citrus leaves appeared to be the important contributing factor to the increased flavonoid content. Although the leaves from trees with blight were typically smaller than leaves from unaffected trees, the increased flavonoid content was not significantly due to a concentration effect. Large differences occurred in the percent increases in concentrations of certain citrus leaf flavonoids. While large increases occurred for a number of flavanone and flavone glycosides, much smaller percent increases occurred for other minor flavone glycosides, and the polymethoxyflavone aglycones. The parallel increases occurring in the concentrations of certain flavone glycosides and their flavanone analogs provide a further indication that flavanone glycosides are precursors in the biosynthesis of flavone glycosides in citrus.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Illinois</li></region></list><tree><country name="États-Unis"><noRegion><name sortKey="Manthey, John A" sort="Manthey, John A" uniqKey="Manthey J" first="John A." last="Manthey">John A. Manthey</name></noRegion><name sortKey="Berhow, Mark A" sort="Berhow, Mark A" uniqKey="Berhow M" first="Mark A." last="Berhow">Mark A. Berhow</name><name sortKey="Grohmann, Karel" sort="Grohmann, Karel" uniqKey="Grohmann K" first="Karel" last="Grohmann">Karel Grohmann</name><name sortKey="Tisserat, Brent" sort="Tisserat, Brent" uniqKey="Tisserat B" first="Brent" last="Tisserat">Brent Tisserat</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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