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Panithi Leesukon Wilaiwan Wirathorn Tatsanee Chuchue Nisanart Charoenlap Skorn Mongkolsuk 《Archives of microbiology》2013,195(9):671-674
The presence of the widely used selectable antibiotic marker, tetA(C), unexpectedly increased the sensitivity of Pseudomonas aeruginosa PAO1 to the superoxide-generating herbicide, paraquat. A DNA fragment spanning the first 99 amino acids of TetA(C) was sufficient to confer paraquat sensitivity. The TetA(C)-induced paraquat sensitive phenotype was observed in other Gram-negative bacteria such as Agrobacterium tumefaciens, Salmonella enterica ser. Typhimurium and Xanthomonas campestris suggesting that this is a general property of tetA(C). This finding serves as a cautionary note for those using tetA(C) as a selectable marker for genetic manipulations in studies using paraquat either as a superoxide stress generator or a redox cycling drug. 相似文献