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Title: The selectable antibiotic marker, tetA(C), increases Pseudomonas aeruginosa susceptibility to the herbicide/superoxide generator, paraquat
Authors: Panithi Leesukon
Wilaiwan Wirathorn
Tatsanee Chuchue
Nisanart Charoenlap
Skorn Mongkolsuk
Mahidol University
Chulabhorn Research Institute
Thailand Ministry of Education
Keywords: Biochemistry, Genetics and Molecular Biology;Immunology and Microbiology
Issue Date: 1-Sep-2013
Citation: Archives of Microbiology. Vol.195, No.9 (2013), 671-674
Abstract: 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. © 2013 Springer-Verlag Berlin Heidelberg.
ISSN: 1432072X
Appears in Collections:Scopus 2011-2015

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