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. 2014 Jul 17;9(7):e102826. doi: 10.1371/journal.pone.0102826

Table 1. Comparison of Methods by OTU Countsa percentage of OTUs from Dominantly Gram Positive Phyla.

Method Clay A-horizon
OTUCountb %Firmicutes±sd %Actinobacteria±sd OTUCountb %Firmicutes±sd %Actinobacteria±sd
ORNL 2001 233±48 0.07±0.06 11.47±2.2 521±16 0.05±0.07 15.65±0.07
ORNL 2012 495±6 1.73±1.10 7.90±1.31 568±60 1.00±0.28 11.45±3.32
PowerLyzer™ 252±29 0.13±0.15 6.30±1.76 535±23 0.07±0.06 10.77±2.15
a

Data is from closed-reference picked OTUs, rarefied at 1404 sequences per sample.

b

Values are averages among replicate extractions.