Quantifications of crude extracted DNA and microbial abundances according to extraction procedures in different soils.

<p>Quantification of (A) crude extracted DNA, (B) 16S rRNA genes, (C) 18S rRNA genes, (D) archaeal 16S rRNA genes according to three different extraction procedures (ISO, GnS-GII and ISOm) in five different soils (C, E, F, L, R). Bars correspond to averages of three replicates ± SD (n = 3). Within each soil, bars topped by the same letter are not significantly different at <i>p</i><0.05.</p

PerMANOVA analyses of microbial communities t-RFLP profiles : influence of extraction method and soil type.

<p>PerMANOVA analysis showing the influence of extraction method and soil type in explaining overall variance in microbial communities.</p>*<p>denotes significance (<i>p</i><0.01).</p

Principal component analysis of microbial communities t-RFLP profiles according to DNA extraction procedures.

<p>Principal component analysis of t-RFLP profiles of (A) bacterial communities, (B) archaeal communities, and (C) fungal communities, coming from five different soils (C, E, F, L, R) according to three different extraction procedures (ISO, GnS-GII and ISOm).</p