Bacteria capable of growing on the polycyclic hydrocarbon acenaphthene
as the sole source of carbon and energy have been isolated for the fi
rst time. Intermediate products of acenaphthene degradation by strains
of Alcaligenes eutrophus and Alcaligenes paradoxus - 1,8-naphthalened
icarboxylic, 7,8-diketonaphthylacetic, and 3-hydroxyphthalic acid - ha
ve been identified. Degradation of the carbon skeleton of acenaphthene
in the investigated strains begins with the five-membered ring, which
can be cleaved in two ways.