Microbial colonizers of freshly sawn yellow-poplar (Liriodendron tulipifera L.) lumber in two seasons: Part 1. Fungi

This is the first of a three-paper series that reports on the abundance, identity, and diversity of microorganisms isolated from dead-stacked yellow-poplar lumber in four time periods during the spring and summer of 2000. This paper focuses on filamentous fungi. Over the entire period, a total of 427 fungal isolates were obtained and 14 species representing 12 genera were identified. Nearly 15% of the fungal isolates were not identified. In total, fungal colonies accounted for 41% of the total abundance of microorganisms that were isolated from samples during this entire study.Penicillium implicatumandAspergillus versicolorwere the predominant fungal species identified and accounted for 29.7% and 14.5%, respectively, of the total fungal isolates.Penicilliumsp was the most commonly isolated genera. Other fungi isolated at lower frequencies includeGraphium penicilliodes,Cladosporium cladosporioides,Trichoderma harzium,Alternaria alternata,A. tenuissima,Epicoccum purpurscens,Hormoconis resinae,Fusarium monoilforme,Geotrichumsp,Chaetomium globosum, andExophiala jeanselmi.