Cultivable actinomycete communities in mammal feces of three diet habits

Abstract

Microbial symbionts play important roles in food digestion and absorption, immunity, pathogens resistance,
and health maintaining of their hosts by co-evolution. To provide new sources for discovering new leader
compounds of drugs, the diversity and bioactivities of cultivable actinobacteria of animal feces have been
studied. Fecal samples of 7 species of carnivorous, omnivorous and phytophagous animal were collected from
Yunnan Wild Animal Park. The purified cultures of actinobacteria were isolated from these samples by using 5
media. The 16S rRNA gene sequences of 623 selected strains were analyzed, and the phylogenetic analysis was
carried out. The study results shown that actinomycete community of each animal feces were different from
each other; 13 genera of actinobacetria were identified from Giant panda (Ailuropoda melanoleuca) feces, and
total 31 genera of actinobacteria were identified from the 7 species of animal feces. Fecal actinobacteria, a
possibility as a new source for discovering drug leader, agricultural chemicals and other industry products, are
argued widely. Selective isolation methods for fecal actinomycetes are described.