A novel strain KS293 exhibiting excellent aerobic and anaerobic denitrification performance was isolated and identified as KS293. Nitrate nitrogen and total organic carbon could be effectively removed by KS293 without nitrite accumulation, whilst 82% and 85% of total nitrogen was converted into gaseous products under aerobic and anaerobic conditions ( > .05), respectively. Based on the ratio of anaerobic to aerobic, relative abundance values were increased 1.41, 1.45, and 2.31 folds for , and , respectively. A comparison of the two-dimensional gel electrophoresis and principal component analysis showed significant differences in proteomic profiles between aerobic and anaerobic conditions. In total, 78 proteins that displayed fluctuations in relative expression were observed. 10 proteins including nitrate reductase, maintenance of cell membrane (TolA), and RNA polymerase-binding transcription factor (DksA) were differentially expressed. These findings demonstrated that KS293 was effective for nitrogen removal under aerobic or anaerobic conditions.

中文翻译：

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Paracoccus versutus KS293 对好氧和厌氧反硝化的适应：来自脱氮、功能基因丰度和蛋白质组分析的见解


分离得到一株具有优异好氧、厌氧反硝化性能的新菌株KS293，并鉴定为KS293。 KS293可以有效去除硝态氮和总有机碳，且不产生亚硝酸盐积累，同时在好氧和厌氧条件下（> .05）分别有82%和85%的总氮转化为气态产物。根据厌氧与需氧的比例， 、 和 的相对丰度值分别增加了 1.41、1.45 和 2.31 倍。二维凝胶电泳和主成分分析的比较显示有氧和厌氧条件下蛋白质组谱存在显着差异。总共观察到 78 种相对表达波动的蛋白质。硝酸还原酶、细胞膜维持(TolA)、RNA聚合酶结合转录因子(DksA)等10种蛋白存在差异表达。这些发现表明，KS293 在需氧或厌氧条件下均能有效去除氮。