Biology

The plant cell wall-decomposing machinery underlies the functional diversity of forest fungi

Authors

Document Type

Article

Abstract

Brown rot decay removes cellulose and hemicellulose from wood - residual lignin contributing up to 30% of forest soil carbon - and is derived from an ancestral white rot saprotrophy in which both lignin and cellulose are decomposed. Comparative and functional genomics of the "dry rot" fungus Serpula lacrymans, derived from forest ancestors, demonstrated that the evolution of both ectomycorrhizal biotrophy and brown rot saprotrophy were accompanied by reductions and losses in specific protein families, suggesting adaptation to an intercellular interaction with plant tissue. Transcriptome and proteome analysis also identified differences in wood decomposition in S. lacrymans relative to the brown rot Postia placenta. Furthermore, fungal nutritional mode diversification suggests that the boreal forest biome originated via genetic coevolution of above- and below-ground biota.

Publication Title

Science

Publication Date

8-5-2011

Volume

333

Issue

6043

First Page

762

Last Page

765

ISSN

0036-8075

DOI

10.1126/science.1205411

Keywords

wood, fungi

Cross Post Location

Student Publications

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