Microbial activity in soils from Antarctica (Casey Station, Wilkes Land)
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概要
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During austral summer 1985/86 a comprehensive study on Antarctic soils was carried out at Casey Station, Wilkes Land. Samples of different locations were analyzed for inorganic nutrients and several organic constituents as well as for related microbiological properties. The data set of this presentation comprises data from 12 top layers of soils covered by different organic material: lichens, mosses and algae. Microbial properties are described by total CO_2-evolution, ^<14>C-glucose uptake and thereof derived parameters such as turnover times of organic matter and their relationships to microbial biomass, estimated from ATP levels, and bacterial biomass and numbers, estimated by epifluorescence microscopy. Results indicate high metabolic rates in these environments. Albeit ratios between gross metabolism (CO_2-evolution) and bacterial activity (^<14>C-turnover rates) show that a high contribution of the total metabolism must be due to other organisms than bacteria. This meets the results of fairly high amounts of ATP on the one hand and low bacterial biomass on the other hand.
- 国立極地研究所の論文
著者
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Boelter M
Univ. Kiel Kiel Deu
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Bolter Manfred
Institute for Polar Ecology, University of Kiel
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Bolter Manfred
Institut Fur Polardkologie Universitat Kiel
関連論文
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- Microbial activity in soils from Antarctica (Casey Station, Wilkes Land)
- Changes in soil and vegetation properties under different land uses in Northern Scandinavia
- MICROBIAL ECOLOGY OF SOILS FROM WILKES LAND, ANTARCTICA : I. THE BACTERIAL POPULATION AND ITS ACTIVITY IN RELATION TO DISSOLVED ORGANIC MATTER (Eleventh Symposium on Polar Biology)
- ESTIMATIONS OF MICROBIAL BIOMASS BY DIRECT AND INDIRECT METHODS WITH SPECIAL RESPECT TO MONITORING PROGRAMS (15th Symposium on Polar Biology)
- MICROBIAL ECOLOGY OF SOILS FROM WILKES LAND, ANTARCTICA : II. PATTERNS OF MICROBIAL ACTIVITY AND RELATED ORGANIC AND INORGANIC MATTER (Eleventh Symposium on Polar Biology)
- MICROCALORIMETRY AND CO_2-EVOLUTION OF SOILS AND LICHENS FROM ANTARCTICA (15th Symposium on Polar Biology)
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