NINHYDRIN POSITIVE SUBSTANCES IN CELL WALL HYDROLYZATES OF SOME ANAEROBIC COCCI
نویسندگان
چکیده
منابع مشابه
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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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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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...
متن کاملIdentification and characterization of cell wall-cell division gene clusters in pathogenic gram-positive cocci.
Clusters of peptidoglycan biosynthesis and cell division genes (DCW genes) were identified and sequenced in two gram-positive cocci, Staphylococcus aureus and Enterococcus faecalis. The results indicated some similarities in organization compared with previously reported bacterial DCW gene clusters, including the presence of penicillin-binding proteins at the left ends and ftsA and ftsZ cell di...
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Isolated cell walls of Staphylococcus aureus and Micrococcus lysodeikticus were found to expand and contract in response to changes in environmental pH and ionic strength. These volume changes, which could amount to as much as a doubling of wall dextran-impermeable volume, were related to changes in electrostatic interactions among fixed, ionized groups in wall polymers, including peptidoglycan...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1959
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.77.1.118-119.1959