Complete genome sequence of Citrobacter freundii AYF4

An anaerobic MC-degrading bacterium Citrobacter freundii AYF4 was isolated and identified that was capable of degrading MC-LR from water samples. The whole-genome data indicated that MC-LR degradation products may be produced by a pathway independent of mlrABCD gene,which may add to the arsenal of bacteria to degrade microcystins and have certain research value.

本研究从水样中分离并鉴定出一株可降解微囊藻毒素-LR（Microcystin-LR, MC-LR）的厌氧型微囊藻毒素降解菌——弗氏柠檬酸杆菌（Citrobacter freundii）AYF4。全基因组数据分析结果表明，该菌株降解MC-LR所产生的代谢产物可能通过不依赖mlrABCD基因的代谢途径生成。该发现为微囊藻毒素降解菌的功能资源库增添了新的选择，具备一定的研究价值。