The selectable antibiotic marker, tetA(C), increases Pseudomonas aeruginosa susceptibility to the herbicide/superoxide generator, paraquat

Autor: Skorn Mongkolsuk, Panithi Leesukon, Tatsanee Chuchue, Nisanart Charoenlap, Wilaiwan Wirathorn
Rok vydání: 2013
Předmět:
Zdroj: Archives of Microbiology. 195:671-674
ISSN: 1432-072X
0302-8933
DOI: 10.1007/s00203-013-0913-7
Popis: 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.
Databáze: OpenAIRE