Production of deoxyribonuclease, ribonuclease, coagulase, and hemolysins by anaerobic gram-positive cocci.

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Production of deoxyribonuclease, ribonuclease, coagulase, and hemolysins by anaerobic gram-positive cocci.

Clinical isolates of Peptococcus and Peptostreptococcus species and Streptococcus intermedius strains were obtained from local hospitals. After confirmed identification, each isolate was tested for the in vitro production of deoxyribonuclease, ribonuclease, coagulase, and hemolysins. Of the 60 strains studied, 18 had enzymatic activity. The variability of enzyme production suggests that such as...

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Gram-positive anaerobic cocci.

Gram-positive anaerobic cocci (GPAC) are a heterogeneous group of organisms defined by their morphological appearance and their inability to grow in the presence of oxygen; most clinical isolates are identified to species in the genus Peptostreptococcus. GPAC are part of the normal flora of all mucocutaneous surfaces and are often isolated from infections such as deep organ abscesses, obstetric...

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Pathogenicity of anaerobic gram-positive cocci.

The pathogenicity of 20 strains of facultative or anaerobic gram-positive cocci (AGPC) was investigated by injecting them alone or mixed with other flora into mice, utilizing the subcutaneous abscess model. Abscesses induced by a mixture of two organisms were uniformly larger than those induced by single organisms. The relationships among seven AGPC strains, eight aerobes, and two Bacteroides s...

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Antibiotic Resistance and Biofilm Production in Catalase-Positive Gram-Positive Cocci Isolated from Brazilian Pasteurized Milk

Background: Milk is a reservoir for several groups of microorganisms, which may pose health risks. The aim of this work was to assess the antibiotic resistance and biofilm production in catalase-positive Gram-positive cocci isolated from Brazilian pasteurized milk. Methods: The bacteria were isolated using Baird-Parker agar and identified by Matrix-Assisted Laser Desorption/Ionization-Time-Of-...

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Achromopeptidase for lysis of anaerobic gram-positive cocci.

Achromopeptidase, which has potent bacteriolytic activity for most of the gram-positive aerobic bacteria, was for the first time used for the lysis of anaerobic cocci. Most of the lysozyme-resistant gram-positive anaerobic cocci were lysed with this new enzyme. Peptococcus magnus was the only organism tested resistant to achromopeptidase. P. saccharolyticus was quite unusual because it was very...

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ژورنال

عنوان ژورنال: Journal of Clinical Microbiology

سال: 1981

ISSN: 0095-1137,1098-660X

DOI: 10.1128/jcm.13.4.787-788.1981