Ophiostoma fungi in the galleries of the larch bark beetle.
Studies on the galleries of Ips cembrae in Larix sibirica and Pinus sylvestris in Siberia revealed the presence of fruiting bodies of blue stain fungi of the family Ophiostomataceae. The frequency and species composition were determined. The fungi identified were Ceratocystiopsis minuta, Ophiostoma ainoae, O. bicolor, O. ips, O. minus, O. piliferum and O. polonicum. Regular coenotic associations of blue stain fungi with the bark beetle were observed in outbreak foci of Ips cembrae. The fungi most frequently vectored by I. cembrae were C. minuta, O. ainoae and O. polonicum. The fungi represent a complex of species having a defined structural and temporal organization. The fungus O. ainoae may occur as a pioneer in the succession of fungi in outbreaks of I. cembrae on burned areas.