Molecular diversity of bamboo-associated fungi isolated from Japan.

Bamboos are common and useful plants in Japan but little information is available about their endophytes. In this study, 257 fungal strains were isolated from bamboo tissues, and 71 representative strains were characterized by 18S rRNA gene and internal transcriber spacer region sequence analysis. Phylogenetic analysis showed that the fungal isolates were located in Sordariomycetes and Dothideomycetes. Xylariales was the dominant group within bamboos. Several rRNA gene sequences were not similar to any current sequence in the database and might be a novel species or genera that could represent sources of novel biological compounds. These findings reveal that bamboos are a huge reservoir of microorganisms that should be extensively investigated.