1994 Fiscal Year Final Research Report Summary
ROLE OF AEROBIC PHOTOSYNTHETIC BACTERIA IN MARINE ECOSYSTEMS.
| Project/Area Number |
05660198
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
General fisheries
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| Research Institution | University of Tokyo |
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Principal Investigator |
OTOBE Hirotaka University of Tokyo, Ocean Research Institute, Assistant Professor, 海洋研究所, 助手 (10169328)
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| Co-Investigator(Kenkyū-buntansha) |
SHIBA Tsuneo National Fisheries University, Department of Food and Natural Resources, Associa, 製造学科, 助教授 (20126080)
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| Project Period (FY) |
1993 – 1994
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| Keywords | PHOTOSYNTHESIS, / AEROBIC, / BACTERIOCHLOROPHYLL |
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| Research Abstract |
Distribution of aerobic bacteriochlorophyll-containing heterotrophic bacteria (ABHB) was examined at Otsuchi Bay, Iwate. The highest population of ABB was found in Julys of 1992 and 1993, and its percentage in total aerobic heterotrophic bacteria counted on agar plates ranged from 20 to 50%. ABHB was present at lesser extents in August and September but found in neither of May nor October. Increase of ABHB proportions was coincident with the stratification of seawater, but not seemed correlated with the change of solar radiation intensity.
Restriction fragment length polymorphism's of 16S rRNA gene and pufM gene indicated that the ABHB in Otsuchi Bay were included in a monophyletic cluster, while 63 strains of ABHB isolated from coastal areas of Australia divided into 23 different clusters.
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