2011 Fiscal Year Final Research Report
Utilization of light energy and adaptation strategy for starvation of bacteria in natural microbial communities
| Project/Area Number |
20370013
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
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| Project Period (FY) |
2008 – 2011
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| Keywords | 微生物群集 / 物質循環 / 水素発生 / 紅色光合成細菌 / 緑色光合成細菌 |
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| Research Abstract |
Purple photosynthetic bacteria were able to survive under the conditions of very low organic nutrients by using light energy in examined 4 species. In the microbial community of hot springs, in which low concentrations of electrons are provided from the water, the biomass grows with continuous cycling of the electrons in the community with the help of photosynthetic bacteria. In the cycling, hydrogen production and consumption play important roles. In the oligotrophic lakes and ponds, partially denitrifying photosynthetic bacteria were involved in the denitrification with non-photosynthetic bacteria.
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