Fig. 1From: Isoprene-degrading bacteria associated with the phyllosphere of Salix fragilis, a high isoprene-emitting willow of the Northern HemisphereBacterial community profile of DNA retrieved from willow leaf samples analysed by 16S rRNA gene amplicon sequencing. Samples are represented as unenriched (T0), enriched (T1), unlabelled (12C), labelled (13C), heavy DNA and light DNA fractions retrieved after DNA-SIP. R1–6 indicate the six replicate samples analysed. Taxa that are at less than 1% relative abundance in a sample are grouped as ‘Other’. Taxa that were of > 5% relative abundance in heavy fractions of 13C-enriched samples are in boldBack to article page