Results 181 to 190 of about 2,834 (212)

Formate utilization by Nitrobacter wibogradskyi

Biochimica et Biophysica Acta (BBA) - General Subjects, 1966
Abstract 1. 1. Formate is actively oxidized by Nitrobacter winogradskyi. The pH that is optimal for formate oxidation is different from the optimum pH for nitrite oxidation 2. 2. The same respiratory chain is used between cytochrome c and oxygen for nitrite and formate oxidation. 3. 3. Energy from formate oxidation is used to CO2 fixation
A, Van Gool, H, Laudelout
openaire   +2 more sources

Oxidative phosphorylation in Nitrobacter winogradskyi

Biochimica et Biophysica Acta (BBA) - Enzymology and Biological Oxidation, 1965
Summary A crude cell-free extract from Nitrobacter winogradskyi , which esterified inorganic phosphate in the course of oxidizing nitrite, had a P/O ratio of 0.17. Only fairly coarse particles were found to exhibit P/O ratios larger than 0.1.
I, Fischer, H, Laudelout
openaire   +2 more sources

Definitive15N NMR evidence that water serves as a source of ‘O’ during nitrite oxidation byNitrobacter agilis

FEBS Letters, 1983
Using 18O isotope shifts in 15N NMR it has been shown that during oxidation of nitrite to nitrate by Nitrobacter agilis, the third ‘O’ in nitrate originates from ...
Sharad Kumar, D J D Nicholas
exaly   +2 more sources

Exogenous Respiration in Nitrobacter

Nature, 1960
DURING the course of an investigation of the oxidation of nitrite by the nitrite-oxidizing bacterium, Nitrobacter, it was noted that the addition of sodium nitrite but not sodium nitrate to heavy cell suspensions caused the immediate appearance of reduced cytochrome bands at 590, 551 and 513 mµ when viewed in the hand spectroscope1.
openaire   +2 more sources

The mechanism of nitrite oxidation by Nitrobacter winogradskyi

Biochimica et Biophysica Acta (BBA) - Enzymology and Biological Oxidation, 1966
Summary 1. With exception of certain narcotics, the effect of classical inhibitors on the nitrite respiration of Nitrobacter winogradskyi was in agreement with the usual inhibition pattern characteristic of a cytochrome respiratory chain. Strong inhibition by quinacrine and its reversal by flavin-adenine dinucleotide shows that a flavin is ...
A, Van Gool, H, Laudelout
openaire   +2 more sources

An amperometric enzyme-linked immunosensor for Nitrobacter

Applied Microbiology and Biotechnology, 1998
A new amperometric enzyme-linked immunoassay for specific enumeration of Nitrobacter has been developed. This assay uses an electrode made of glassy carbon, on which the immunological reaction is carried out. The method is based on a competitive immunoassay principle, utilising monoclonal primary antibody and alkaline-phosphatase-labelled secondary ...
B, Sandén, L H, Eng, G, Dalhammar
openaire   +2 more sources

Particulate formate oxidase from Nitrobacter agilis

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1970
Abstract 1. The nitrite oxidase particles obtained by sonic oscillation of Nitrobacter agilis cells also possessed appreciable formate oxidase activity, ranging from about 25 to 50% of the nitrite oxidase activity depending upon the N. agilis strain.
J C, O'Kelley, A, Nason
openaire   +2 more sources

Immunofluorescence studies of Nitrobacter populations in soils

Canadian Journal of Microbiology, 1977
Certain steps of a protocol to enumerate a bacterium directly in soil by immunofluorescence were studied with respect to the enumeration of Nitrobacter in soils of diverse properties. Maximal counts of Nitrobacter were obtained by varying factors involved in the release of bacteria from the soil.
R J, Rennie, E L, Schmidt
openaire   +2 more sources

The fine structure of frozen etched Nitrobacter cells

Archiv f�r Mikrobiologie, 1969
1. The ultrastructure of frozen etched Nitrobacter winogradskyi cells was examined and compared with thin sections of chemically fixed cells. 2. Frozen etched cells showed two equally thick wall layers interconnected by short strands.
A P, van Gool, R, Lambert, H, Laudelout
openaire   +2 more sources

Inactivation of nitrate reductase by NADH in Nitrobacter agilis

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1974
Abstract Nitrate reductase from Nitrobacter agilis was inactivated by NADH (but not by NADPH) in the absence of nitrate. The inactivation of the enzyme by over-reduction with NADH was overcome by oxidizing the reduced enzyme with nitrate, ferricyanide, NAD + or NADP + .
J, Herrera, D J, Nicholas
openaire   +2 more sources