| Project/Area Number |
11660297
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Basic veterinary science/Basic zootechnical science
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| Research Institution | Tokushima University |
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Principal Investigator |
NEMOTO Ken Tokushima University, Dentistry, Research Associate, 歯学部, 助手 (10218274)
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| Co-Investigator(Kenkyū-buntansha) |
HIROTA Katsuhiko Tokushima University, Dentistry, Research Associate, 歯学部, 助手 (60199130)
ONO Tsuneko Tokushima University, Dentistry, Associate Professor, 歯学部, 助教授 (40035514)
MIYAKE Yoichiro Tokushima University, Dentistry, Professor, 歯学部, 教授 (80136093)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2000: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1999: ¥2,200,000 (Direct Cost: ¥2,200,000)
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| Keywords | Tannin-Protein comprex degrading bacteria / Herbivores / Enteric bacteria |
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| Research Abstract |
Tannin-protein complex degrading enterobacteria (T-PCDE) were isolated from herbivorous primates in zoological parks in Japan. The bacteria were composed of four Streptococcus gallolyticus strains ; from Abisinian colobus, purple faced lunger, gorilla and chimpanzee, five Klebsiella pneumoniae strains ; from gorilla.S.gallolyticus, previously reported as T-PCDE isolated from Australian marsupial herbivores was also revealed to be an enterobacterium of browsing primates. Several strains of K.pneumoniae, which were isolated from leaf mold have been reported to be tannin producing soil bacteria in previous studies. However this species first appeared to be a T-PCDE in animals in the present study. The ratio of T-PCD S.gallolyticus to fecal streptococci from each primate species ranged from 0.4 to 14.2% and the ratio of T-PCD K.pneumoniae to gram-negative enterobacteria from the gorilla was 17.3%. These finding indicated that the leaf eating primates like colobuses and gorillas are able to solve the problem of tannin toxicity by symbiosis with T-PCDE similar to other herbivores reported previously. The bacteria reported in this stady will be able to being used for utilization of tannin rich feed in farming by implanting them into animal digestive tract.
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