title: Inorganic-ion resistance by bacteria isolated from a Mexico City freeway.
abstract: Bacteria were isolated from soil samples, containing high exchangeable lead concentrations, obtained from a busy freeway in the México City metropolitan area. Forty-five selected strains (86.7% Gram-positive) had a single MIC distribution pattern for lead (800-1600 micrograms/ml lead nitrate) and were considered lead-resistant. The isolates showed variable levels of resistance to arsenate (86.7%), chromate (66.7%), cadmium (57.6%), and mercury (31.1%) ions. Multiple inorganic-ion resistance was shown by all strains.
authors.affiliation: Escuela Nacional de Estudios Profesionales Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla.
authors.forename: S
authors.initials: S
authors.lastname: Vaca Pacheco
authors.forename: R
authors.initials: R
authors.lastname: Miranda
authors.forename: C
authors.initials: C
authors.lastname: Cervantes
mesh_terms: D001149:Arsenates / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D002104:Cadmium / Q000494:pharmacology; D019256:Cadmium Chloride; D002712:Chlorides / Q000494:pharmacology; D002840:Chromates / Q000494:pharmacology; D004352:Drug Resistance, Microbial; D007477:Ions; D007854:Lead / Q000032:analysis / Q000494:pharmacology*; D008627:Mercuric Chloride / Q000494:pharmacology; D008800:Mexico; D008826:Microbial Sensitivity Tests; D017680:Potassium Compounds / Q000494:pharmacology; D012987:Soil / Q000032:analysis; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis / Q000494:pharmacology*; D001335:Vehicle Emissions
chemical_list: D001149:Arsenates; D002712:Chlorides; D002840:Chromates; D007477:Ions; D017680:Potassium Compounds; D012987:Soil; D012989:Soil Pollutants; D001335:Vehicle Emissions; D002104:Cadmium; D007854:Lead; D008627:Mercuric Chloride; C027373:potassium chromate(VI); C009277:sodium arsenate; D019256:Cadmium Chloride