Chopra, I Sensitive biological detection method for tetracyclines using a tetA-lacZ fusion system. [electronic resource] - Antimicrobial agents and chemotherapy Jan 1990 - 111-6 p. digital Publication Type: Journal Article ISSN: 0066-4804 Standard No.: 10.1128/AAC.34.1.111 doi Subjects--Topical Terms: Chromosomes, BacterialCloning, MolecularCulture MediaCyclic AMP--pharmacologyEscherichia coli--drug effectsGalactosidases--biosynthesisGenes, BacterialTetracycline ResistanceTetracyclines--analysis