Nat. Biotechnol. 22, 695–700 (2004)

On page 695, column 1, line 4, the phrase “hemicellulose and cellulose (the most abundant natural polymers)” should have read “cellulose (the most abundant natural polymer) and hemicellulose”; column 2, line 4, “P. chrysosporium, a representative fungus” should have read “P. chrysosporium, a representative white rot fungus.”

On page 699, column 1, paragraph 3, last sentence, the phrase “system appears to have restricted” should have had a reference, so that it read, “system appears6 to have restricted.”