Electron transport and respiration in Beggiatoa and Vitreoscilla |
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Authors: | William R Strohl Thomas M Schmidt Victor A Vinci John M Larkin |
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Institution: | (1) Program of Environmental Biology, The Ohio State University, 43210 Columbus, OH, USA;(2) Department of Microbiology, The Ohio State University, 43210 Columbus, OH, USA;(3) Department of Microbiology, Louisiana State University, 70803 Baton Rouge, LA, USA;(4) Present address: Center for Great Lakes Studies, 600 E. Greenfield St., 53204 Milwaukee, WI, USA |
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Abstract: | Seven strains of bacteria belonging to the Beggiatoa-Vitreoscilla group were studied for their respiratory activity and for the presence of electron transport conponents. All strains tested oxidized 1-14C] and 2-14C] acetate to 14CO2 at relatively high rates. All strains tested were N,N,N,N-tetramethylphenylenediamine (TMPD)-oxidase positive and contained spectra representing a-type and carbon monoxide-binding cytochromes. Most of the strains also contained spectra representing c-type and b-type cytochromes. Beggiatoa alba B18LD contained b-type, a-type, c-type and CO-binding cytochromes, the latter two being located in the 144,000 x g soluble fraction. B. alba also contained ubiquinone-8 as its only detectable quinone.Non-standard abbreviations BSS
basal salts solution
- BH
Beggiatoa heterotrophic medium
- BSO
Beggiatoa sulfide oxidation medium
- TMPD
N,N,N,N-tetramethylphenylenediamine
- Q8
ubiquinone-8 |
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Keywords: | Beggiatoa Vitreoscilla Cytochromes Electron transport Sulfide oxidation Acetate oxidation TMPD oxidase |
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