Interaction between Epicoccum purpurascens and xylophagous Basidiomycetes on wood blocks. For. Pathol. 37: 236-242.

MIELNICHUK N.; LOPEZ. S.E.

FOREST PATHOLOGY

Blackwell Verlag

Lugar: Berlin; Año: 2007 vol. 37 p. 236 - 242

SummaryEpicoccum purpurascens, a component of the bark micromycota, was evaluated as a potentialbiocontrol agent for three decay-causing hymenomycetes frequently found in Buenos Aires city trees,Ganoderma platense, Inonotus rickii and Rigidoporus ulmarius. Treatments consisted of dual culturesof E. purpurascens and xylophagous fungi on box elder (Acer negundo) wood blocks. Two inoculationsequences were tested: (i) the biocontrol agent as the first microorganism inoculated followed by thepathogen; and (ii) the xylophagous fungus as the first microorganism inoculated followed by thebiocontrol agent. After 3 months of incubation, percentage dry weight loss was calculated. WhenE. purpurascens was allowed to colonize wood blocks before the introduction of the xylophagousfungus, dry weight loss was significantly reduced in all instances. However, as a secondary colonizer,E. purpurascens mildly reduced the weight loss caused by G. platense, had no effect on degradation byI. rickii and increased wood weight loss by R. ulmarius.