Identification of fungi associated with municipal compost using DNA-based techniques.

Published

Journal Article

Fungi are important in terrestrial decay processes. However, fungi associated with organic decay during composting are still not well known. In this study culture-independent methods were used to identify fungi associated with composting organic municipal wastes to gain a better understanding of the diversity of fungi associated with this process. Fungal communities from 0, 210, and 410day-old compost samples were assessed with DNA fingerprinting using denaturing gradient gel electrophoresis (DGGE) and by the analysis of DNA sequences from rDNA clone libraries. From 207 rDNA sequences, 82 fungal OTU's were detected. A disproportionate number of yeast sequences were detected in Day 0 clone libraries, including the human pathogens Candida tropicalis and Candida krusei (Saccharomycetales). Basidiomycetes accounted for over half of the clones from the Day 210 sample. Clones of Cercophora and Neurospora species accounted for most of the fungal clones of the Day 410 sample. No Zygomycetes or Aspergillus species were detected in this study. These findings call for a reassessment of long held views about the organisms involved in the composting of organic municipal wastes.

Full Text

Duke Authors

Cited Authors

  • Bonito, G; Isikhuemhen, OS; Vilgalys, R

Published Date

  • February 2010

Published In

Volume / Issue

  • 101 / 3

Start / End Page

  • 1021 - 1027

PubMed ID

  • 19766485

Pubmed Central ID

  • 19766485

Electronic International Standard Serial Number (EISSN)

  • 1873-2976

International Standard Serial Number (ISSN)

  • 0960-8524

Digital Object Identifier (DOI)

  • 10.1016/j.biortech.2009.08.109

Language

  • eng