Figure 6From: Biotransformation and chemotaxis of 4-chloro-2-nitrophenol by Pseudomonas sp. JHN Chemotaxis towards 4C2NP. (a) Drop plate assay showing the bacterial ring around the crystals of 4C2NP. (b) Capillary assay showing the different chemotaxis index value toward different concentrations of 4C2NP. Aspartate was used as a positive control.Back to article page