Fig. 4From: The gut symbiont Sphingomonas mediates imidacloprid resistance in the important agricultural insect pest Aphis gossypii GloverDegradation of imidacloprid by Sphingomonas. A–E HPLC–MS chromatograms and probable structures of metabolites of imidacloprid after incubation with Sphingomonas for 8 days. F, G Changes in imidacloprid and its metabolite concentrations during the 8-day incubation with Sphingomonas. The initial concentrations of imidacloprid were 25 ppm (F) and 50 ppm (G). H Proposed pathways of the biodegradation of imidacloprid by SphingomonasBack to article page