Results 141 to 150 of about 19,248 (182)

Ferric reductases of Legionella pneumophila

Biometals, 1993
Ferric reductase enzymes requiring a reductant for maximal activity were purified from the cytoplasmic and periplasmic fractions of avirulent and virulent Legionella pneumophila. The cytoplasmic and periplasmic enzymes are inhibited by zinc sulfate, constitutive and active under aerobic or anaerobic conditions.
M T, Poch, W, Johnson
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Metal requirements of Legionella pneumophila

Journal of Clinical Microbiology, 1981
Serial passage of six strains of Legionella pneumophila and one strain of Pseudomonas aeruginosa in a liquid chemically defined medium deficient in trace metals resulted in the death of five L. pneumophila strains and very limited growth in the remaining strain and the P. aeruginosa strain. Addition of either iron or magnesium restored growth to almost
M W, Reeves, L, Pine, S H, Hutner, J R, George, W K, Harrell   +4 more
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Cellulitis Caused by Legionella pneumophila

Clinical Infectious Diseases, 1993
A patient with lymphoma presented with pneumonia. While receiving antibiotics, he developed a rapidly spreading cellulitis. The soft tissues were debrided in the operating room, and pathological examination showed fat necrosis and a fibrinopurulent exudate in the fibroadipose tissue; direct immunofluorescence of the debrided tissue revealed the ...
M K, Waldor, B, Wilson, M, Swartz
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Isolation of Legionella pneumophila in Bulgaria

Zentralblatt für Bakteriologie, Mikrobiologie und Hygiene. 1. Abt. Originale. A, Medizinische Mikrobiologie, Infektionskrankheiten und Parasitologie, 1981
Microorganisms have been isolated from water samples obtained from a small warm mineral lake. The growth, staining, biochemical and antigenic properties of the microorganisms suggest that they belong to legionella pneumophila serogroup 1. This is the first isolation of Legionella in Bulgaria.
A, Tomov, E, Tsvetkova, N, Tsanev, V, Kassovsky, N, Gotev   +4 more
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Intracellular Replication of Legionella pneumophila

Journal of Infectious Diseases, 1981
Legionella pneumophila was inoculated onto tissue culture monolayers of MRC-5, HeLa, Hep 2, and McCoy cells. Fresh and conditioned medium without cells served as controls. Cultures were harvested at various times after inoculation, serial log10 dilutions were performed, and growth of L. pneumophila was quantitated either by direct immunofluorescence or
J A, Daisy, C E, Benson, J, McKitrick, H M, Friedman   +3 more
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Nosocomial infections with Legionella pneumophila

Journal of Hospital Infection, 1980
The first recorded outbreak of Legionnaires’ disease occurred in a large psychiatric hospital in Washington DC in the summer of 1965. Here, 81 patients fell ill with acute pneumonia and 14 died, an attack rate of 1.4 per 100 patients. At postmortem, a number of the cases yielded Klebsiella pneumoniae on culture of purulent material from the lungs and K.
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Legionella pneumophila pathogenesis and immunity

Seminars in Pediatric Infectious Diseases, 2002
Legionella pneumophila is a ubiquitous intracellular bacterium found widely in the environment and is the cause of sporadic outbursts of opportunistic infection, mainly in immunocompromised individuals, including young children as well as aged persons.
Herman, Friedman, Yoshimasa, Yamamoto, Thomas W, Klein   +2 more
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Cytotoxic Glucosyltransferases of Legionella pneumophila

2013
Legionella is a gram-negative bacterium and the causative pathogen of legionellosis-a severe pneumonia in humans. A large number of Legionella effectors interfere with numerous host cell functions, including intracellular vacuole trafficking and maturation, phospholipid metabolism, protein ubiquitination, pro-/anti-apoptotic balances or inflammatory ...
Belyi, Yury, Jank, Thomas, Aktories, Klaus   +2 more
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Oropharyngeal colonization with Legionella pneumophila

Journal of Clinical Microbiology, 1983
A total of 186 volunteers, including 40 hospital patients, participated in a cross-sectional survey of oropharyngeal colonization with Legionella pneumophila. Colonization was defined as the appearance of any L. pneumophila organisms on culture or a positive direct fluorescent-antibody (FA) test or both in the absence of signs or symptoms of pneumonia.
J A, Bridge, P H, Edelstein
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Gene transfer in Legionella pneumophila

Microbes and Infection, 1999
This review describes the mechanisms of gene transfer in Legionella pneumophila. To date, conjugation and transformation have been reported for this organism. Recent reports indicate that an endogenous system of plasmid transfer appears to be required for the intracellular survival and multiplication of L. pneumophila in host cells.
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