An international collaborative research group led by Assistant Professor Takushi Hayakawa of the Kyoto Institute of Library and Archives and Associate Professor Matsunozomi of the Institute of Creative Science of Chubu University has conducted field observations over a long period of time, and the living environment is different. For the first time in the world, we succeeded in identifying a diverse bacterial flora that coexists in the stomach of male males.
Proboscis monkeys are characterized by their long and large belly, which are like tengu and live only in the jungles of Southeast Asia.It has a double stomach (a special stomach with four constrictions) similar to ruminants such as cows, and the first stomach (anterior stomach), which occupies most of it, has a wide variety of microbes such as bacteria. Are co-existing.In recent years, metagenomic analysis technology has developed, and it has become possible to comprehensively analyze microscopic substances that coexist in the gastrointestinal tract of primates. There have been no detailed studies of metagenomics.
Therefore, this research group collected the anterior gastric contents of proboscis monkeys with different growing environments and comprehensively analyzed the bacterial DNA sequences.As a result, it was found that the proboscis monkeys, which have a high diversity of plants and live in rich forests, have a more diverse bacterial flora.In addition, in the proventriculus of human-fed herds and reared individuals, bacterial species that are thought to be necessary for digestion of foods that humans can eat are coexisting, that is, humanization of the flora. Was observed.
In the future, further research is expected to progress on how the host ghosts and the gastrointestinal microflora have co-evolved through mutual use with the voice and environment.
Paper information:[Environmental Microbiology Reports] First report of foregut microbial community in proboscis monkeys: Are diverse forests a reservoir for diverse microbiomes?