Kuritz T, Bocanera L V, Rivera N S
Life Sciences Division, Oak Ridge National Laboratory, Tennessee 37830, USA.
J Bacteriol. 1997 May;179(10):3368-70. doi: 10.1128/jb.179.10.3368-3370.1997.
Nitrate is essential for lindane dechlorination by the cyanobacteria Anabaena sp. strain PCC7120 and Nostoc ellipsosporum, as it is for dechlorination of other organic compounds by heterotrophic microorganisms. Based on analyses of mutants and effects of environmental factors, we conclude that lindane dechlorination by Anabaena sp. requires a functional nir operon that encodes the enzymes for nitrate utilization.
硝酸盐对于蓝细菌鱼腥藻属PCC7120菌株和椭圆念珠藻对林丹的脱氯作用至关重要,就如同它对于异养微生物对其他有机化合物的脱氯作用一样。基于对突变体的分析以及环境因素的影响,我们得出结论,鱼腥藻属对林丹的脱氯作用需要一个功能性的nir操纵子,该操纵子编码用于硝酸盐利用的酶。