Identification of gibberellins A17, A25, A45, abscisic acid,phaseic acid,and dihydrophaseic acid in seeds of Pyrus communis |
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| Authors: | George C. Martin Frank G. Dennis Paul Gaskin Jake Macmillan |
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| Affiliation: | 1. Department of Pomology, The University of California, Davis, CA 95616, U.S.A.;2. Department of Horticulture, Michigan State University, U.S.A.;3. School of Chemistry, The University, Bristol BS8 1TS, U.K. |
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| Abstract: | Gibberellin A17, abscisic acid, and 4′-dihydrophaseic acid were identified by GC-MS of derivatized extracts from both immature and mature seeds of pear. Immature seeds also contained phaseic acid, gibberellins A25 and A45, and two presumed mono-hydroxylated derivatives of GA45, one of which was tentatively identified as 3β-hydroxy-GA45. Several presumed metabolites of abscisic acid were detected in both mature and immature seeds. |
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| Keywords: | Rosaceae pear gibberellins abscisic acid phaseic acid dihydrophaseic acid GC-MS. ABA = (+) -abscisic acid DPA = 4′-dihydrophaseic acid MeTMS = methyl ester trimethylsilyl ether. |
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