H. Kawaide et T. Sassa, ACCUMULATION OF GIBBERELLIN-A(1) AND THE METABOLISM OF GIBBERELLIN-A(9) TO GIBBERELLIN-A(1) IN A PHAEOSPHAERIA SP L487 CULTURE, Bioscience, biotechnology, and biochemistry, 57(8), 1993, pp. 1403-1405
Gibberellin A1 (GA1), which was identified as the major GA from the GA
-producing fungus Phaeosphaeria sp. L487, was accumulated in the cultu
re with a maltose-yeast extract medium, its amount in the culture filt
rate being about 50 mg per liter after a 3-week culture. The new funga
l biosynthetic pathway to GA1 from GA9 via GA4 was elucidated by feedi
ng experiments with synthetic [17-H-2(2)]GA9 and [17-H-2(2)]GA4.