CO2 fixation in photosynthetically-grown Celoroflexus aurantiacus
نویسندگان
چکیده
منابع مشابه
A bicyclic autotrophic CO2 fixation pathway in Chloroflexus aurantiacus.
Phototrophic CO(2) assimilation by the primitive, green eubacterium Chloroflexus aurantiacus has been shown earlier to proceed in a cyclic mode via 3-hydroxypropionate, propionyl-CoA, succinyl-CoA, and malyl-CoA. The metabolic cycle could be closed by cleavage of malyl-CoA affording glyoxylate (the primary CO(2) fixation product) with regeneration of acetyl-CoA serving as the starter unit of th...
متن کاملChanges in the cytochrome composition of Rhodopseudomonas sphaeroides grown aerobically, photosynthetically and on dimethyl sulphoxide.
Several strains and mutants of Rhodopseudomonas sphaeroides can be grown anaerobically in the dark in the presence of dimethyl sulphoxide as an electron acceptor. During adaptation to this fermentative mode of growth, two major c-type cytochromes are synthesized, one with Mr 45 000 and the second with Mr 20 000 and a midpoint potential of +120 mV. These cytochromes are barely detectable in memb...
متن کاملEnergy-linked pyridine nucleotide transhydrogenase activity in photosynthetically grown Rhodopseudomonas palustris.
Rhodopseudomonas palustris (ATCC 17001) develops energy-dependent NADP+ transhydrogenase activity while growing photosynthetically on thiosulfate, formate, or acetate as the electron donors. The enzymatic activity is present in the supernatant fraction S-144 000. -- As reported, this fraction contains small membrane fragments but no closed vesicles and was shown to drive energy-dependent revers...
متن کاملRespiratory electron flow and ATPase system in photosynthetically grown Rhodopseudomonas palustris.
Rhodopseudomonas palustris is grown photosynthetically on thiosulfate. As pointed out earlier, the chromatophore deficient cell-free fraction S-144,000 catalyzes the thiosulfate-linked ATP-dependent reversal of electron transfer in anaerobiosis, thus providing reducing equivalents in the form of NADH. Under aerobic conditions, this fraction also catalyzes the oxidation of NADH, ferro-cytochrome...
متن کاملAutotrophic fixation of geogenic CO2 by microorganisms
Introduction Conclusions References Tables Figures
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1977
ISSN: 0378-1097
DOI: 10.1016/0378-1097(77)90078-7