Ammonifying bacteria

Populations of heterotrophs (both aerobic and anaerobic) were determined by a cultivation method on the nutrient agar with 7 day incubation at 26 C. The ammonifying, nitrifying and denitrifying bacteria, as well as those oxidizing hydrocarbons were determined on liquid media as a most probable number. The ammonifying bacteria were determined on nutrient broth by employing the... 

Fig. 4. Counts of some bacterial groups on activated carbon columns A — ammonifying bacteria, N — nitrifying bacteria, D — denitrifying bacteria, HCO — hydrocarbon oxidizing bacteria...

A first model for the organization of respiratory nitrite ammonification and direction of proton exchange associated with electron transfer from formate to nitrate in E. coli had been described earlier [126]. The reduction of nitrate to nitrite by the oxidation of formate is linked to the generation of a proton electrochemical potential (Section 3.1.1., discussion on nitrate reductase). Whether the overall architecture of the nitrate reductase complex from E. coli also holds for other nitrite-ammonifying bacteria, has to be investigated. S. deleyianum and... 

In nitrite-ammonifying bacteria, especially in enterobacteria, there may exist two independently regulated dissimilatory ways of nitrite reduction to ammonia with two different physiological functions [125]. A cytoplasmic siroheme-dependent nitrite reductase activity (NADH nitrite oxidoreductase) [138,139] confers on... 

I. AMMONIFICATION IN THE SOIL The dead bodies and excreta of living beings are attacked in the ground by the exoenzymes of many bacteria. For example, the exoenz3rmes of many Clostridia attack this dead matter and the proteins are converted to amino acids. Many bacteria release ammonia from these amino acids. The most active ammonifying oi anisms are Bacillus mycoidesy Proteus vulgaris and various actinomycetes. Quantitatively the most important process is oxidative deamination (p. 210). 

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