Nitrite oxidase and nitrate reductase in Nitrobacter agilis
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چکیده
منابع مشابه
Nitrite oxidase and nitrate reductase in Nitrobacter agilis.
Nitrite oxidase and nitrate reductase in Nitrobacter agilis were shown to be separate enzymes. The best separation of the two systems was achieved by ammonium sulphate fractionation. The effects of various compounds, including antimycin A, 2-n-heptyl-4-hydroxyquinoline N-oxide and chlorate, also clearly distinguish between the two enzyme reactions. The relationship between the two opposing reac...
متن کاملLack of distinction between Nitrobacter agilis and Nitrobacter winografskyi.
No adequate criteria were established to distinguish between Nitrobacter agilis and N. winogradskyi. However, very gentle preparative techniques permitted demonstration of flagella in N. agilis.
متن کاملCharacterization of a Nitrate Reductase from the Chemoautotroph Nitrobacter agiZis*
The energy thus liberated is used in part for the assimilation of carbon dioxide which serves as the sole carbon source for growth. Studies of the biochemistry of Nitrobacter agilis have been mainly limited by the difficulty in obtaining large yields of cells, as has been the case with many of the chemoautotrophs. There has consequently been a relat.ively slow advancement of biochemical researc...
متن کاملPermeability of Nitrobacter agilis to Organic Compounds.
Ida, S. (Cornell University, Ithaca, N.Y.), and M. Alexander. Permeability of Nitrobacter agilis to organic compounds. J. Bacteriol. 90:151-156. 1965.-None of a variety of inorganic ions or organic compounds served as a sole energy source for the growth of Nitrobacter agilis, and the test substrates were not oxidized by either intact cells or extracts of the obligate chemoautotroph. The organic...
متن کاملNitrate effects on nitrate reductase activity and nitrite reductase mRNA levels in maize suspension cultures.
Nitrate reductase (NR) activity and nitrite reductase (NiR) mRNA levels were monitored in Black Mexican Sweet maize (Zea mays L.) suspension cultures after the addition of nitrate. Maximal induction occurred with 20 millimolar nitrate and within 2 hours. Both NR and NiR mRNA were transiently induced with levels decreasing after the 2 hours despite the continued presence of nitrate in the medium...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1969
ISSN: 0306-3283
DOI: 10.1042/bj1130449