Fig. 3From: Identification, synthesis and regulatory function of the N-acylated homoserine lactone signals produced by Pseudomonas chlororaphis HT66Detection of AHL extracts using Agrobacterium tumefaciens NTL4 plate bioassay. Samples contain extracts from cultures as follows (1) DH5α (pME-phzI) (2) DH5α (pME-csaI) and (3) DH5α (pME-hdtS)Back to article page