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MICROBIAL COLONIZATION PROCESSES IN ANTARCTIC FELLFIELD SOILS : AN EXPERIMENTAL OVERVIEW (Eleventh Symposium on Polar Biology)
https://doi.org/10.15094/00005098
https://doi.org/10.15094/00005098876464d7-9a32-4f0a-925c-3d28f7db9bd8
名前 / ファイル | ライセンス | アクション |
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KJ00000767474 (2.3 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||
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公開日 | 1990-03-01 | |||||||
タイトル | ||||||||
タイトル | MICROBIAL COLONIZATION PROCESSES IN ANTARCTIC FELLFIELD SOILS : AN EXPERIMENTAL OVERVIEW (Eleventh Symposium on Polar Biology) | |||||||
言語 | ||||||||
言語 | eng | |||||||
資源タイプ | ||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
資源タイプ | departmental bulletin paper | |||||||
ID登録 | ||||||||
ID登録 | 10.15094/00005098 | |||||||
ID登録タイプ | JaLC | |||||||
ページ属性 | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | P(論文) | |||||||
記事種別(英) | ||||||||
en | ||||||||
Proceeding | ||||||||
論文名よみ | ||||||||
その他のタイトル | MICROBIAL COLONIZATION PROCESSES IN ANTARCTIC FELLFIELD SOILS : AN EXPERIMENTAL OVERVIEW (Eleventh Symposium on Polar Biology) | |||||||
著者名(英) |
WYNN-WILLIAMS, David D.
× WYNN-WILLIAMS, David D.
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著者所属(英) | ||||||||
en | ||||||||
British Antarctic Survey, Natural Environment Research Council | ||||||||
抄録(英) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | The process of colonization of Antarctic fellfield soils by micro-organisms has two phases: Firstly, the immigration, survival and establishment of microbial propagules themselves, and secondly the stabilization of the soil for subsequent colonization and establishment by mosses, lichens and invertebrates. Dominant amongst primary microbial colonizers are the phototrophic cyanobacteria and algae. Not only do they introduce organic nutrients into the microhabitat but they also have a structural function. Filaments of several dimensions frequently form a mesh over the surface of the soil. This mesh often has a canopy structure of fine filaments closely admixed with the mineral soil grains, overlain by a layer of broader, longer filaments. This structure may provide a rich grazing zone for micro-invertebrates such as protozoa and nematodes. Microbial filaments, clusters and unicells frequently have mucilaginous sheaths or capsules which may cement mineral grains together and improve soil crust stability. The combination of filaments and mucigel promotes the formation of microbial "rafts" which are dispersed by wind or water. The diverse microbiota of these compound propagules is likely to improve their chances of successful colonization of unpopulated soil surfaces. Phototrophic microbes can be distinguished in mixed natural communities of undisturbed soil crusts by selective filtration of their autofluorescence spectra. Heterotrophs can be distinguished after staining. The population can be selectively quantified by television image analysis (TVIA) using criteria of pigmentation, size and morphology. | |||||||
雑誌書誌ID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AA10819561 | |||||||
書誌情報 |
Proceedings of the NIPR Symposium on Polar Biology 巻 3, p. 164-178, 発行日 1990-03 |
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出版者 | ||||||||
出版者 | National Institute of Polar Research |