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Applied and Environmental Microbiology, October 2007, p. 6691-6694, Vol. 73, No. 20
0099-2240/07/$08.00+0     doi:10.1128/AEM.01361-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

New Insights into the Ligninolytic Capability of a Wood Decay Ascomycete{triangledown}

Semarjit Shary,1 Sally A. Ralph,2 and Kenneth E. Hammel1,2*

Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706,1 USDA Forest Products Laboratory, Madison, Wisconsin 537262

Received 19 June 2007/ Accepted 18 August 2007

Wood-grown cultures of Daldinia concentrica oxidized a permethylated ß-14C-labeled synthetic lignin to 14CO2 and also cleaved a permethylated {alpha}-13C-labeled synthetic lignin to give C{alpha}-Cß cleavage products that were detected by 13C nuclear magnetic resonance spectrometry. Therefore, this ascomycete resembles white-rot basidiomycetes in attacking the recalcitrant nonphenolic structures that predominate in lignin.

* Corresponding author. Mailing address: Institute for Microbial and Biochemical Sciences, USDA Forest Products Laboratory, One Gifford Pinchot Dr., Madison, WI 53726. Phone: (608) 231-9528. Fax: (608) 231-9262. E-mail: kehammel{at}wisc.edu

{triangledown} Published ahead of print on 31 August 2007.

Applied and Environmental Microbiology, October 2007, p. 6691-6694, Vol. 73, No. 20
0099-2240/07/$08.00+0     doi:10.1128/AEM.01361-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



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