| Budget Amount *help |
¥24,310,000 (Direct Cost: ¥18,700,000、Indirect Cost: ¥5,610,000)
Fiscal Year 2018: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2017: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2016: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
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| Outline of Final Research Achievements |
In this study, the anaerobically methane-oxidizing and acetate-oxidizing iron reducers were enriched from 15 different deep subseafloor core sediments with crystalline iron oxides as electron acceptors. The enrichment process was monitored by high-throughput sequencing. The obtained enrichment cultures were transferred to energetically favorable media including soluble Fe(III) or the other electron acceptors, resulting in the successful isolation of two species of the iron-reducing Firmicutes bacteria. This indicates that the acetate-oxidizing crystalline iron(III) reducers were responsible for the carbon flux in the deep subseafloor sediments.
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