title: Comparison of chemical assay, bioassay, enzyme-linked immunosorbent assay, and dot blot hybridization for detection of aerobactin in members of the family Enterobacteriaceae.
abstract: In order to determine the best strategy for detection of aerobactin in members of the family Enterobacteriaceae, we compared the results of three phenotypic assays, including a chemical assay, a cross-feeding bioassay, and an enzyme-linked immunosorbent assay (ELISA), with the results of a dot blot hybridization assay using a specific probe for the aerobactin genes. The sensitivity and specificity of the ELISA were better than those of the chemical and cross-feeding assays, but the results of dot blot hybridization were the most reproducible. However, none of the Serratia and Enterobacter cloacae strains which produced aerobactin hybridized with the probe. We concluded that the best strategy for aerobactin detection is a two-step procedure that combines screening by dot blot hybridization with an ELISA for negative strains.
authors: Laboratoire d'Ecologie Microbienne, Institut Gustave-Roussy, Chatenay-Malabry, France.
authors: D
authors: D
authors: Le Roy
authors: A
authors: A
authors: Bouchet
authors: P
authors: P
authors: Saulnier
authors: S
authors: S
authors: Pecquet
authors: A
authors: A
authors: Andremont
mesh_terms: D001681:Biological Assay; D004755:Enterobacteriaceae / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D004797:Enzyme-Linked Immunosorbent Assay; D006877:Hydroxamic Acids / Q000032:analysis* / Q000378:metabolism; D015151:Immunoblotting; D009693:Nucleic Acid Hybridization; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D017262:Siderophores / Q000032:analysis* / Q000235:genetics / Q000378:metabolism
chemical_list: D006877:Hydroxamic Acids; D017262:Siderophores; C031819:aerobactin