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Applied and Environmental Microbiology, November 2008, p. 7073-7079, Vol. 74, No. 22
0099-2240/08/$08.00+0     doi:10.1128/AEM.01074-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

Exogenous or L-Rhamnose-Derived 1,2-Propanediol Is Metabolized via a pduD-Dependent Pathway in Listeria innocua{triangledown}

Junfeng Xue,1 Charles M. Murrieta,2 Daniel C. Rule,2 and Kurt W. Miller1*

Department of Molecular Biology, University of Wyoming, Laramie, Wyoming 82071,1 Department of Animal Science, University of Wyoming, Laramie, Wyoming 820712

Received 13 May 2008/ Accepted 16 September 2008

1,2-Propanediol (1,2-PD) added exogenously to cultures or produced endogenously from L-rhamnose is metabolized to n-propanol and propionate in Listeria innocua Lin11. The pduD gene, which encodes a diol dehydratase ß subunit homolog, is required for 1,2-PD catabolism. pduD and 16 other genes within the pduA-to-pduF region of a large gene cluster are induced in medium containing 1,2-PD.

* Corresponding author. Mailing address: Department of Molecular Biology, University of Wyoming, 1000 E. University Avenue, Dept. 3944, Laramie, WY 82071-3944. Phone: (307) 766-2037. Fax: (307) 766-5098. E-mail: kwmiller{at}uwyo.edu

{triangledown} Published ahead of print on 19 September 2008.

Applied and Environmental Microbiology, November 2008, p. 7073-7079, Vol. 74, No. 22
0099-2240/08/$08.00+0     doi:10.1128/AEM.01074-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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