Anthropogenic N Deposition Alters the Composition of Expressed Class II Fungal Peroxidases.

ABSTRACT: Here, we present evidence that ca. 20 years of experimental N deposition altered the composition of lignin-decaying class II peroxidases expressed by forest floor fungi, a response which has occurred concurrently with reductions in plant litter decomposition and a rapid accumulation of soil organic matter. This finding suggests that anthropogenic N deposition has induced changes in the biological mediation of lignin decay, the rate limiting step in plant litter decomposition. Thus, an altered composition of transcripts for a critical gene that is associated with terrestrial C cycling may explain the increased soil C storage under long-term increases in anthropogenic N deposition.IMPORTANCE Fungal class II peroxidases are enzymes that mediate the rate-limiting step in the decompositi

SUBMITTER: Entwistle EM 

PROVIDER: S-EPMC5930317 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature