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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Microbial ecology ： ウィキペディア英語版 Microbial ecology Microbial ecology (or environmental microbiology) is the ecology of microorganisms: their relationship with one another and with their environment. It concerns the three major domains of life—Eukaryota, Archaea, and Bacteria—as well as viruses.〔 Microorganisms, by their omnipresence, impact the entire biosphere. Microbial life plays a primary role in regulating biogeochemical systems in virtually all of our planet's environments, including some of the most extreme, from frozen environments and acidic lakes, to hydrothermal vents at the bottom of deepest oceans, and some of the most familiar, such as the human small intestine.〔〔 As a consequence of the quantitative magnitude of microbial life (Whitman and coworkers calculated cells, eight orders of magnitude greater than the number of stars in the observable universe〔〔) microbes, by virtue of their biomass alone, constitute a significant carbon sink.〔 Aside from carbon fixation, microorganisms’ key collective metabolic processes (including nitrogen fixation, methane metabolism, and sulfur metabolism) control global biogeochemical cycling.〔 The immensity of microorganisms’ production is such that, even in the total absence of eukaryotic life, these processes would likely continue unchanged.〔 == History == While microbes have been studied since the seventeenth-century, this research was from a primarily physiological perspective rather than an ecological one.〔 Martinus Beijerinck invented the enrichment culture, a fundamental method of studying microbes from the environment. He is often incorrectly credited with framing the microbial ecology idea that "everything is everywhere, but, the environment selects", which was stated by Lourens Baas Becking.〔 Sergei Winogradsky was one of the first researchers to attempt to understand microorganisms outside of the medical context—making him among the first students of microbial ecology and environmental microbiology—discovering chemosynthesis, and developing the Winogradsky column in the process.〔 Beijirnck and Windogradsky, however, were focused on the physiology of microorganisms, not the microbial habitat or their ecological interactions.〔 Modern microbial ecology was launched by Robert Hungate and coworkers, who investigated the rumen ecosystem. The study of the rumen required Hungate to develop techniques for culturing anaerobic microbes, and he also pioneered a quantitative approach to the study of microbes and their ecological activities that differentiated the relative contributions of species and catabolic pathways.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Microbial ecology」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.