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Turnover of low molecular weight dissolved organic carbon does not correlate with differences in microbial community composition or growth across a soil pH gradient.

Författare:
Publiceringsår: 2011
Språk: Engelska
Publikation/Tidskrift/Serie: Applied and Environmental Microbiology
Nummer: Online 18 February 2011
Dokumenttyp: Artikel
Förlag: American Society for Microbiology

Sammanfattning

We studied how soil pH (4 - 8) influenced the mineralisation of low molecular weight (LMW) dissolved organic carbon (DOC) compounds, and how this compared with differences in microbial community structure. The mineralisation of LMW DOC compounds was not systematically connected to differences in soil pH, consistent with soil respiration. In contrast, the microbial community composition differed dramatically. This suggests that microbial community composition data will be of limited use in improving the predictive power of soil C models.

Disputation

Nyckelord

  • Biology and Life Sciences
  • biodegradation / decomposition / mineralization
  • heterotrophic respiration
  • phospholipid fatty acid (PLFA) analysis
  • soil acidity
  • leucine incorporation

Övriga

Published
  • Microbial carbon-use efficiency
  • Carbon drivers and microbial agents of soil respiration
Yes
  • Microbial Ecology
  • ISSN: 1098-5336

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