Titlebook: Microbial Growth on C1 Compounds; Proceedings of the 8 Mary E. Lidstrom,F. Robert Tabita Conference proceedings 1996 Kluwer Academic Publis

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Conducive

Carboxysomes: The Genes of ,, 1988, Shively 1974, Shively et al. 1988, Shively,English 1991). The bodies were first isolated from . and shown to consist of a monolayer shell surrounding multiple molecules of the enzyme ribulose bisphosphate carboxylase/oxygenase, RuBisCO (Shively et al. 1973a,b). The inclusions were subsequentl

progestogen

Analysis of genes in the pathway for the fermentation of acetate to methane by ,,ptors. Acetate-utilizing methane-producing . also cleave acetate; however, the carbonyl group is oxidized to CO. to provide an electron pair for reduction of the methyl group to CH.. The phylogenetic extremes between the two domains raises questions concerning the comparative genetics and biochemist

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Regulation of the C1 Metabolism of Acetogens: Metabolic By-Passes and Ecological Implications, is acetate. The overall process by which CO. is reduced to acetate by acetogens is termed the acetyl-CoA “Wood/Ljungdahl” pathway and involves the reduction of two molecules of CO. to either the CH.-level via formate dehydrogenase and tetrahydrofolate-mediated reactions, or the CO-level via acetyl-

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Mechanism of N-Oxidation and Electron Transfer in the Ammonia Oxidizing Autotrophs,ay includes the extrinsic membrane tetraheme cytochrome c-554 and, possibly, a membrane-anchored tetraheme c-cytochrome (CycB). .554 and .B share an operon in the HAO gene cluster. CycB has high homology with nirT, napC and torC suggesting a role in anaerobic metabolism. A small fraction of active H

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Biochemistry and genetics of organoautotrophy in ,,s. The former are confined to the assimilation of CO. as the main source of cell carbon, whereas the latter are able to utilize many organic compounds as alternative or additional carbon and/or energy sources. The nutritional versatility varies considerably among the different subgroups of aerobic,

multiply

Hydrogen Oxidation by ,,lected proteobacteria, including species of lithoautotrophs, nitrogen-fixing and photosynthetic microorganisms (reviewed by Friedrich, Schwartz 1993 and Vignais, Toussaint 1994). These facultative hydrogen-oxidizers are abundant in soil and water. Adaptation to shortage of nutrients may explain the

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Genetics of CO2 fixation in methylotrophs,xidize reduced C. compounds for this purpose. Those methylotrophs which belong to the genus . are yellow pigmented Gram-negative, obligate aerobes (Wiegel, Schlegel, 1984). They employ the Calvin cycle for the fixation of carbon dioxide during autotrophic growth, which is driven by the oxidation of