Nitrite Production by Heterotrophic Bacteria
نویسندگان
چکیده
منابع مشابه
Nitrite production by heterotrophic bacteria.
Heterotrophic bacteria were studied which produced nitrite in the presence of ammonia and in the absence of nitrate. A soil extract medium was prepared which allowed good growth as well as nitrite production in the absence of nitrate. Quantitative data are recorded showing that ammonia decreases as nitrite accumulates when four different cultures are grown in the soil medium. Resting cell studi...
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Fifty mesophilic and five moderately thermophilic strains of acidophilic heterotrophic bacteria were tested for the ability to reduce ferric iron in liquid and solid media under aerobic conditions; about 40% of the mesophiles (but none of the moderate thermophiles) displayed at least some capacity to reduce iron. Both rates and extents of ferric iron reduction were highly strain dependent. No a...
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In Escherichia coli, Pseudomonas aeruginosa, and Achromobacter metalcaligenes gamma-aminolevulinic acid synthase and gamma-aminolevulinic acid dehydratase appear to be the rate limiting enzymes of porphyrin and heme biosynthesis. Bypassing of these enzymes by addition of gamma-aminolevulinic acid or porphobilinogen results in overproduction of tetrapyrroles.
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Obligately acidophilic, heterotrophic bacteria were isolated both from enrichment cultures developed with acidic mine water and from natural mine drainage. The bacteria were grouped by the ability to utilize a number of organic acids as sole carbon sources. None of the strains were capable of chemolithotrophic growth on inorganic reduced iron and sulfur compounds. All bacteria were rod shaped, ...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1956
ISSN: 0022-1287
DOI: 10.1099/00221287-14-2-238