RT Journal Article SR Electronic T1 Formation of a clear zone on tannin-treated brain heart infusion agar by a Streptococcus sp. isolated from feces of koalas. JF Applied and Environmental Microbiology JO Appl. Environ. Microbiol. FD American Society for Microbiology SP 829 OP 831 VO 56 IS 3 A1 Osawa, R YR 1990 UL http://aem.asm.org/content/56/3/829.abstract AB Gram-positive cocci, isolated from the feces of koalas and identified as Streptococcus bovis biotype I, formed a distinct clear zone on tannin-treated brain heart infusion agar, suggesting that this isolate has the unique characteristic of degrading the tannin-protein complex.