Results 171 to 180 of about 82,772 (210)

Evaluation of Methods for Distinguishing Gram-Positive from Gram-Negative Anaerobic Bacteria

Anaerobe, 1996
Abstract Several species of anaerobic bacteria display variable Gram stain reactions which often make identification difficult. We have evaluated the Gram stain, the potassium hydroxide test (3% KOH), an antibiotic susceptibility test (10 mg/L vancomycin), and the L-alanine aminopeptidase test (utilising fluorogenic L-alanine-4-methoxy-β ...
A Eley
exaly   +2 more sources

In-vitro activity of azithromycin against various Gram-negative bacilli and anaerobic bacteria

Journal of Antimicrobial Chemotherapy, 1990
The MICs of azithromycin, erythromycin and roxithromycin were determined (by an agar dilution method) for 65 strains of Gram-negative bacteria responsible for endocarditis and gastrointestinal infections, for 20 strains of non-fermenting Gram-negative bacteria and for 16 strains of anaerobic bacteria.
M D Kitzis, F W Goldstein, J F Acar
exaly   +3 more sources

The early colonization of gram‐negative anaerobic bacteria in edentulous infants

Oral Microbiology and Immunology, 1992
The occurrence of oral gram‐negative anaerobes was examined in 30 edentulous infants (mean age 3 months, range 1‐7 months). One pooled swab sample from mucosal surfaces (cheeks, palate, tongue) and one saliva sample was taken from each infant. The samples were cultured aerobically and anaerobically using non‐selective and selective media.
E, Könönen, S, Asikainen, H, Jousimies-Somer   +2 more
openaire   +2 more sources

Anaerobic Gram Negative Nonsporing Bacteria from the Caeca of Poultry

Journal of Applied Bacteriology, 1968
SUMMARY Four groups (1, 4, 5 and 6) of Gram negative, nonsporing anaerobic rods (family Bacteroidaceae) which have been isolated from the caeca of chickens, turkeys and ducks, are described. Two of the groups (1 and 6) belong to the genus Sphaerophorus but differ in a number
E M, Barnes, C S, Impey
openaire   +2 more sources

Endotoxins of gram-negative anaerobic bacteria

Infection, 1980
The author reviews the data available on endotoxins of Fusobacterium, Sphaerophorus, Leptotrichia, and Veillonella species, and reports his own findings with lipopolysaccharides extracted from Bacteroides fragilis strains by the trichloroacetic acid method. The latter extracts showed a very low toxicity for mice after i.v.
openaire   +2 more sources

Cytoplasmic glycogen inclusions in cells of anaerobic gram-negative rumen bacteria

Canadian Journal of Microbiology, 1973
Megasphaera elsdenii, an anaerobic rumen bacterium, produced intracellular polysaccharide granules varying in size from 0.05 to 0.15 μm during growth in batch culture. This polysaccharide material was purified and was found to contain D-glucose as the only reducing sugar.
K J, Cheng, R, Hironaka, D W, Roberts, J W, Costerton   +3 more
openaire   +2 more sources

Bactericidal Antibody in Mammalian Serum to Obligatorily Anaerobic Gram-Negative Bacteria

The Journal of Immunology, 1966
Summary A modification has been made of the quantitative photometric serum bactericidal procedure for use with obligatorily anaerobic Gram-negative bacteria. This required the incubation of the serum-sensitive anaerobic bacteria with antibody and complement in an atmosphere containing 95% N-5% CO2.
R T, Evans, S, Spaeth, S E, Mergenhagen
openaire   +2 more sources

Role of Structural and Extracellular Virulence Factors in Gram-Negative Anaerobic Bacteria

Clinical Infectious Diseases, 1994
Gram-negative anaerobic bacteria belonging to the genera Bacteroides, Prevotella, and Porphyromonas represent the most common cause of endogenous, usually mixed, infections occurring after abdominal or gynecologic surgery. Anaerobes are important pathogens in oral-cavity infections as well as in systemic infections that originate from the mouth ...
G A, Botta, A, Arzese, R, Minisini, G, Trani   +3 more
openaire   +2 more sources

Immune responses to anaerobic gram‐negative bacteria in health and disease

Food / Nahrung, 1984
AbstractIn the serum of healthy and sick persons antibodies to Bacteroidaceae and Veillonella have been detected. The antibody titres to these anaerobic bacteria are commonly low, in adults, however, higher than in children. High antibody titres could be found in patients suffering from Crohn's disease and in cancer patients.
openaire   +2 more sources

Antibacterial effects of endodontic irrigants on black-pigmented Gram-negative anaerobes and facultative bacteria

Journal of Endodontics, 1998
The antibacterial effect of endodontic irrigants was evaluated against four black-pigmented Gram-negative anaerobes and four facultative anaerobic bacteria by means of the agar diffusion test. All solutions used were inhibitory against all bacterial strains tested.
J F, Siqueira, M M, Batista, R C, Fraga, M, de Uzeda   +3 more
openaire   +2 more sources