3-hydroxylation of gibberelin A,12-aldehyde in Gibberella fujikuroi strain rec-193A
1973; Elsevier BV; Volume: 12; Issue: 9 Linguagem: Inglês
10.1016/0031-9422(73)85116-7
ISSN1873-3700
AutoresJohn R. Bearder, Jake MacMillan, Bernard O. Phinney,
Tópico(s)Diatoms and Algae Research
ResumoWhen grown on PDL medium for 11 days the strain REC-193A of Gibberella fujikuroi produces the usual range of gibberellins and ent-kaurenoid metabolites. After 3–5 days under the same conditions of culture, this slow growing strain produces virtually none of these metabolites. These short term cultures were found to convert gibberellin A12-aldehyde into gibberellins A12 (8.3 % A14 (45%), A4 (ca. 17%) and A7 (ca. 6%). Under identical conditions of culture gibberellin A12 was largely unmetabolised. These results show that 3-hydroxylation is the first step in the conversion of gibberellin A12-aldehyde into gibberellins A14, A4 and A7.
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