Gibberella fujikuroi (Fusarium moniliforme) is a complex group of plan
t pathogens. Some strains produce gibberellic acid and other gibberell
ins that promote growth and regulate various stages in plant developme
nt. The paper describes the research effort directed to development of
genetic tools for this species. Furthermore the main features of the
gibberellin biosynthetic pathway as established in Gibberella are desc
ribed.