Variation in microbial community structure in two boreal peatlands as determined by analysis of phospholipid Fatty Acid profiles.

Analyses of phospholipid fatty acids were used to assess variation in community structure and total microbial biomass in two boreal peatlands in Sweden

I Sundh

2020

Scholarcy highlights

  • Analyses of phospholipid fatty acids were used to assess variation in community structure and total microbial biomass in two boreal peatlands in Sweden
  • Principal-component analysis of PLFA data revealed that the degree of depth-related variation in PLFA composition was high among peatland habitats, with general differences between wet sites, with water tables within a few centimeters of the moss surface, and dry sites, with water tables >10 cm below the moss surface
  • No such separations were evident for the surface samples, and separations were much less pronounced for the deepest samples, showing that there were very small systematic differences in PLFA composition between sites at these depths
  • Since total PLFA concentrations at our sites generally decreased with depth, this difference can probably be explained by the fact that Borgå et al sampled at a greater depth
  • No differences in PLFA composition were detected among the June, July, and September samples collected at Stor-Åmyran
  • This implies that the microbial community structure changes relatively little over the growing season in this type of peatland
  • Small systematic differences between wet and dry sites at the greatest sampling depth, probably reflect the dominance of anaerobic conditions in all communities

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