Fig. 4From: Isoprene-degrading bacteria associated with the phyllosphere of Salix fragilis, a high isoprene-emitting willow of the Northern Hemispheretaken from around each tree. Data points with samples from Miscanthus each represent a single grass leafRelative abundance of isoprene degraders in DNA retrieved from samples of leaf washings from Miscanthus, poplar and willow trees. Samples were analysed by qPCR of isoA genes (48). isoA copies were normalised to the number of 16S rRNA gene copies present in each DNA sample. The three replicates for poplar and willow samples represent individual trees, while data points within replicates each represent 2Â g of leaves Back to article page