title: Differentiation of Clostridium difficile, Clostridium bifermentans, Clostridium sordellii, and Clostridium perfringens from diarrheal stool by API ZYM and API LRA oxidase test.
abstract: A simple, rapid and reliable outline for identification of clostridia isolates from human infections was developed. It consists of a combination of API ZYM and API LRA Oxidase tests. The enzymatic activities were performed with strains sub-cultured onto carbohydrate-free medium (Columbia blood agar). Fifty-five strains of Clostridium difficile, C. bifermentans, C. sordellii, and C. perfringens from clinical specimens and eight reference standard strains representing different species of the same genus were analyzed. The accuracy of the new method was evaluated by comparison with the results obtained by DNA/DNA analysis.
authors.affiliation: Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Università degli Studi di Roma Tor Vergata, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Fontana
authors.forename: T
authors.initials: T
authors.lastname: Jezzi
authors.forename: G P
authors.initials: GP
authors.lastname: Testore
authors.forename: B
authors.initials: B
authors.lastname: Dainelli
mesh_terms: D015373:Bacterial Typing Techniques; D002876:Chromosomes, Bacterial / Q000737:chemistry; D016360:Clostridioides difficile / Q000145:classification / Q000201:enzymology / Q000235:genetics / Q000302:isolation & purification; D003013:Clostridium / Q000145:classification* / Q000201:enzymology / Q000235:genetics / Q000302:isolation & purification; D003015:Clostridium Infections / Q000175:diagnosis / Q000382:microbiology*; D003016:Clostridium perfringens / Q000145:classification / Q000201:enzymology / Q000235:genetics / Q000302:isolation & purification; D004269:DNA, Bacterial / Q000032:analysis; D003967:Diarrhea / Q000382:microbiology*; D005243:Feces / Q000382:microbiology*; D006801:Humans; D008828:Microbiological Techniques; D010088:Oxidoreductases / Q000032:analysis*; D015203:Reproducibility of Results
chemical_list: D004269:DNA, Bacterial; D010088:Oxidoreductases