Biosynthesis of Isoflavonoid Phytoalexins: Incorporation of Sodium [1,2-13C2] Acetate into Phaseollin and Kievitone
1982 ◽
Vol 37
(5-6)
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pp. 363-368
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Abstract13C-NMR analysis of the isoflavonoid phytoalexins phaseollin and kievitone produced by feeding sodium [1,2-13C2]acetate to wounded bean (Phaseolus vulgaris) cotyledons has demonstrated the incorporation of intact acetate units into the aromatic A rings. Phaseollin shows a specific folding of the polyketide chain, whereas kievitone exhibits a randomisation of label in accordance with the intermediacy of a 2′,4′,6′-trihydroxylated chalcone during its formation. In neither case was sufficient label incorporated into analysis.
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2009 ◽
Vol 21
(5)
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pp. 624-632
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Keyword(s):
1981 ◽
Vol 59
(7)
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pp. 1105-1121
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Keyword(s):
1986 ◽
Vol 41
(1-2)
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pp. 215-221
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2003 ◽
Vol 54
(1)
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pp. 103-116
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1991 ◽
Vol 52
(1)
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pp. 199-208
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