Fig. 2From: Representative sampling of natural biofilms: influence of substratum type on the bacterial and fungal communities structureVariability of the bacterial community structure within substrata types for biofilms collected in November 2009 from replicates of different natural substrates: a Negative image of the DGGE gel, b Dendrogram of Jaccard distances calculated from the DGGE band presence/absence matrix, and c Principal component analysis of band intensity profiles of gene fragments coding for 16S rRNA (only the first two factors/components have been represented)Back to article page