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Journal of Bacteriology, September 2007, p. 6477-6481, Vol. 189, No. 17
0021-9193/07/$08.00+0     doi:10.1128/JB.00623-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Physiological and Expression Analyses of Agrobacterium tumefaciens trxA, Encoding Thioredoxin{triangledown}

Paiboon Vattanaviboon,1* Weerachai Tanboon,1 and Skorn Mongkolsuk1,2,3

Laboratory of Biotechnology, Chulabhorn Research Institute, Lak Si, Bangkok 10210,1 Department of Biotechnology,2 Center for Emerging Bacterial Infections, Faculty of Science, Mahidol University, Bangkok 10400, Thailand3

Received 23 April 2007/ Accepted 6 June 2007

Exposure of Agrobacterium tumefaciens to menadione, cumene hydroperoxide, and diamide strongly induced trxA expression. The trxA mutant showed a reduction in the aerobic growth rate and plating efficiency and was cytochrome c oxidase negative. Atypically, the mutant has decreased resistance to menadione but an increased H2O2 resistance phenotype.

* Corresponding author. Mailing address: Laboratory of Biotechnology, Chulabhorn Research Institute, Lak Si, Bangkok 10210, Thailand. Phone: 662 574 0622, ext. 3815. Fax: 662 574 2027. E-mail: paiboon{at}cri.or.th

{triangledown} Published ahead of print on 15 June 2007.

Journal of Bacteriology, September 2007, p. 6477-6481, Vol. 189, No. 17
0021-9193/07/$08.00+0     doi:10.1128/JB.00623-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Saenkham, P., Eiamphungporn, W., Farrand, S. K., Vattanaviboon, P., Mongkolsuk, S. (2007). Multiple Superoxide Dismutases in Agrobacterium tumefaciens: Functional Analysis, Gene Regulation, and Influence on Tumorigenesis. J. Bacteriol. 189: 8807-8817 [Abstract] [Full Text]  


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