PAPER: Phospholipid fatty acid analysis as a tool
URL: https://doi.org/10.1016/j.mimet.2021.106271
Phospholipid fatty acid (PLFA) analysis as a tool to estimate absolute abundances from compositional 16S rRNA bacterial metabarcoding data
June 2021
Lewe N, Hermans S, Lear G, Kelly LT, Thomson-Laing G, Weisbrod B, Wood SA, Keyzers RA, Deslippe JR 2021. Phospholipid fatty acid (PLFA) analysis as a tool to estimate absolute abundances from compositional 16S rRNA bacterial metabarcoding data. J Microbiol Methods 188: 106271.
ABSTRACT
Microbial biodiversity monitoring through the analysis of DNA extracted from environmental samples is increasingly popular because it is perceived as being rapid, cost-effective, and flexible concerning the sample types studied. DNA can be extracted from diverse media before high-throughput sequencing of the prokaryotic 16S rRNA gene is used to characterize the taxonomic diversity and composition of the sample (known as metabarcoding). While sources of bias in metabarcoding methodologies are widely acknowledged, previous studies have focused mainly on the effects of these biases within a single substrate type, and relatively little is known of how these vary across substrates. We investigated the effect of substrate type (water, microbial mats, lake sediments, stream sediments, soil and a mock microbial community) on the relative performance of DNA metabarcoding in parallel with phospholipid fatty acid (PLFA) analysis.
KEYWORDS
eDNA; Microbial biomass; PLFA; Environmental monitoring; Biomarker; Environmental substrates
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