School of Biology, Georgia Institute of Technology, Atlanta, Georgia, USA.
J Bacteriol. 2012 Aug;194(16):4461-2. doi: 10.1128/JB.00871-12.
We report the first genome sequences for six strains of Rhodanobacter species isolated from a variety of soil and subsurface environments. Three of these strains are capable of complete denitrification and three others are not. However, all six strains contain most of the genes required for the respiration of nitrate to gaseous nitrogen. The nondenitrifying members of the genus lack only the gene for nitrate reduction, the first step in the full denitrification pathway. The data suggest that the environmental role of bacteria from the genus Rhodanobacter should be reevaluated.
我们报告了六种罗得河杆菌菌株的基因组序列,这些菌株是从各种土壤和地下环境中分离出来的。其中三种菌株能够进行完全反硝化作用,而另外三种则不能。然而,所有六种菌株都包含了将硝酸盐呼吸转化为气态氮所需的大部分基因。属中的非反硝化成员仅缺少硝酸盐还原基因,这是完整反硝化途径的第一步。这些数据表明,应该重新评估罗得河杆菌属细菌的环境作用。