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Acetogenesis by Harold L. Drake (auth.), Harold L. Drake (eds.)

By Harold L. Drake (auth.), Harold L. Drake (eds.)

This is the 1st quantity to supply finished insurance of acetogenesis. major specialists current cutting-edge examine, investigating the constitution and serve as courting of key acetogenic approaches, together with synthesis of ATP, the conservation of strength, and intersecting metabolic pathways. It explores the interactions among acetogenic micro organism and the movement of subject and effort, giving the reader an built-in point of view on acetogens and the surroundings. It provides landmark advances within the biochemistry, phylogeny, and molecular biology of acetogens, with lucid factors of historical past fabric, making this quantity obtainable to novices to the topic. It discusses diversified features of acetogenesis in soils, and gastrointestinal tracts, in addition to present and power advertisement and environmental purposes. This quantity will function a wide and in-depth evaluation of simple and rising matters in acetogenesis for microbiologists, molecular biologists, biochemists, and ecologists, and as a stimulus for destiny research.

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5, and Chapters 2, 3, and 5). , Clostridium pasteurianum). , 1974; Diekert and Thauer, 1978). , 1982) be ascertained. Although more complicated than the CO dehydrogenase assay, the acetyl-CoA synthase assay can be performed with cell extracts and will confirm the occurrence of reaction XI, a reaction fundamentally more important for identification purposes. In addition, it has been shown with C. thermoaceticum that mediation of both reactions X and XI by acetyl-CoA synthase in cell extracts may not yield parallel results and, additionally, may vary with growth conditions (Kellum and Drake, 1986).

1983), the chemolithotrophic potentials of C. thermoautotrophicum were used to classify it as a different species from C. , 1981). ATPase/energy-conserving systems (Hugenholz and Ljungdahl, 1989). Clostridium magnum was likewise originally isolated as an obligate heterotroph (Schink, 1984). However, as with C. , 1991). ] Thus, as the list of acetogens becomes longer, detailed evaluation of metabolic potentials should be emphasized. , Hi CO2) (Greening and Leedle, 1989; Kane and Breznak, 1991).

7 Regulation and Genetics This will be a short section: We know very little about the regulatory and genetic mechanisms employed by acetogens. , that their metabolic potentials, including the acetylCoA pathway, may, in fact, be subject to regulatory control. In this respect, far more is known regarding the molecular biology and genetics of methanogens (Reeve, 1992; Ferry, 1992). As mentioned earlier, the only focal point for many 36 Harold L. Drake years was the biochemistry of the apparent constituitive capacity of acetogens to reduce CO2 to acetate.

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