Neyra C A, Döbereiner J
Can J Microbiol. 1977 Mar;23(3):300-5. doi: 10.1139/m77-044.
Forty-nine N2-fixing strains of Spirillum lipoferum isolated from a wide range of plant roots and soils were examined for reduction of NO3-. All strains reduced NO3-to NO2-. Thirty of the strains further reduced NO2-with production of gas. Examiniation of representative strains of the putative denitrifiers showed that they produced both N2O and C2H4 in the presence of 0.1 atm of C2H2. Strains which did not reduce NO2-with production of gas produced C2H4 but ont N2O in the presence of C2H2. This is the first report of a N2-fixing bacterium able to bring about denitrification of NO3.
对从多种植物根系和土壤中分离出的49株产脂螺菌固氮菌株进行了硝酸盐还原检测。所有菌株都能将硝酸盐还原为亚硝酸盐。其中30株菌株能进一步将亚硝酸盐还原并产生气体。对假定的反硝化菌的代表性菌株进行检测发现，在0.1个大气压的乙炔存在下，它们会产生氧化亚氮和乙烯。不能将亚硝酸盐还原并产生气体的菌株在乙炔存在下会产生乙烯，但不产生氧化亚氮。这是关于一种能使硝酸盐反硝化的固氮细菌的首次报道。
