Titlebook: Enigmatic Microorganisms and Life in Extreme Environments; Joseph Seckbach Book 1999 Springer Science+Business Media Dordrecht 1999 algae.

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The Versatility of MicroorganismsThe abiding presence of microorganisms has also a temporal dimension. Living microorganisms have been found from 100 year-old beer bottles to 40 million-year-old amber. Fossil evidence suggests that the Earth’s earliest organisms were themselves “extremophiles.” Extremophiles can be defined as those

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The Study of Enigmatic Microbial Communities microbes counted by direct light microscopic means could not be matched by plate count or other procedures meant to estimate numbers of viable cells. The direct-count method using fluorescent dye and the epifluorescent microscope has been modified many times since Daley and Hobbie’s (1975) work. Th

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Book 1999 sets of data to further our understanding ofliving organisms, but there remain enigmas in the biological world that will keep scientists working and thinking for decades. Microorganisms by virtue of their small size and almost unbounded diversity provide ample examples of intriguing mysteries that

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Cryptomonad Systematics - An Algal Enigma?ding their phylogeny. Consequently, it is the intent of this short chapter to summarize the known information about cryptomonad genera and to present those aspects which need more research to make this group less enigmatic.

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The Study of Enigmatic Microbial Communitiesey have been useful for estimation of phototrophic and non-phototrophic cells in both the picoplankton and nano-plankton size fractions of the same samples (Sicko-Goad and Stoermer, 1984), but little effort given to the direct study of species diversity.

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Tracing the Relationships Among the Eubacteria Using σ70-Type Sigma Factorsecisely interpreted and is usually more informative of evolutionary relationships than phenotypic information (Woese, 1987). Over the past few decades genotypic information has replaced morphological or other phenotypic patterns as the primary tool to determine evolutionary relationships between microorganisms.

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Eukaryotic Cells Under Extreme Conditions self evident, yet how often do you see sweeping statements of the form “eukaryotes are …” or “eukaryotes have …” based on observations from yeast, mouse and man? . is an unusual eukaryote in that it is an osmotrophic heterotroph with a very fast growth cycle, for instance.