Nitrification and simultaneous denitrification by Azospirillum brasilense 12S.
J Biosci
;
1987 Mar; 12(1): 51-54
Article
in English
| IMSEAR
| ID: sea-160560
ABSTRACT
Azospirillum brasilense, an associative diazotrophs from sorghum roots grows autotrophically on NH + 4 and CaCO3. NH + 4 a is also oxidized to NO – 2 and then denitrified. Addition of malate to the autotrophic medium enhances both NH + 4 oxidation as well as NO – 2 dissimilation. The incomplete nitrification linked denitrification results in a rapid loss of nitrogen from the growth medium. The bacterium also shows assimilatory NO3− and NO 2 reductases and fixes nitrogen at < 50 μg N/ml of NH + 4 , NO−3 or NO-2.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
J Biosci
Year:
1987
Type:
Article
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