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Applied and Environmental Microbiology, February 2009, p. 583-588, Vol. 75, No. 3
0099-2240/09/$08.00+0     doi:10.1128/AEM.02126-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Biotransformations of 2-Methylisoborneol by Camphor-Degrading Bacteria {triangledown}

Richard W. Eaton1* and Peter Sandusky2

Southern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, New Orleans, Louisiana 70124,1 Department of Environmental Science and Engineering, The University of North Carolina, Chapel Hill, North Carolina 275992

Received 13 September 2008/ Accepted 28 November 2008

Many camphor-degrading bacteria that are able to transform 2-methylisoborneol (2-MIB) have been identified. Three of these strains have been examined in detail. Rhodococcus ruber T1 metabolizes camphor through 6-hydroxycamphor but converts 2-MIB to 3-hydroxy-2-MIB. Pseudomonas putida G1, which metabolizes camphor through 5-hydroxycamphor, converts MIB primarily to 6-hydroxy-2-MIB. Rhodococcus wratislaviensis DLC-cam converts 2-MIB through 5-hydroxy-2-MIB to 5-keto-2-MIB. Together, these three strains produce metabolites resulting from hydroxylation at all of the three available secondary carbons on the six-member ring of 2-MIB.

* Corresponding author. Mailing address: SRRC, ARS, USDA, 1100 Robert E. Lee Blvd., New Orleans, LA 70124. Phone: (504) 286-4353. Fax: (504) 286-4419. E-mail: richard.eaton{at}ars.usda.gov

{triangledown} Published ahead of print on 5 December 2008.

Applied and Environmental Microbiology, February 2009, p. 583-588, Vol. 75, No. 3
0099-2240/09/$08.00+0     doi:10.1128/AEM.02126-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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