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РЖ ВИНИТИ 34 (BI14) 96.07-04Б4.198

Salasia, S. I.O.
Distribution of serotype, virulence markers and further characteristics of Streptococcus suis isolates from pigs [Text] / S. I.O. Salasia, C. Lammler // J. Vet. Med. B. - 1995. - Vol. 42, N 2. - P78-83 . - ISSN 0931-1793
Перевод заглавия: Распространение серотипов, маркеров вирулентности и другие характеристики Streptococcus suis, выделенных от свиней
Аннотация: This study was designed to comparatively investigate 28 S. suis cultures isolated from various pathological processes of pigs. All cultures could be identified biochemically and most of the cultures could be serogrouped with specific antiserum against Lancefield's serogroup D. Serotyping of the S. suis isolates mainly revealed capsular types 2, 1, and 22. In addition, part of the cultures, mostly those of serotype 2, reacted with monoclonal antibodies to the virulence protein muraminidase-released protein, and, in parallel with monoclonal antibodies against the virulence protein extracellular factor. Independently of serotype and the occurrence of both virulence proteins, four cultures haemagglutinated erythrocytes from pigs, humans and rabbits. The haemagglutination reaction appeared to be related to the surface hydrophobicity of the isolates. However, part of the cultures with hydrophobic surfaces did not haemagglutinate the available erythrocyte preparations. The surface characteristics of the S. suis isolates shown in this investigation could be used to characterize individual isolates of S. suis that might be of importance for epidemiological studies

ГРНТИ	34.27.29

ВИНИТИ 341.27.29.07.19.11
Рубрики: STREPTOCOCCUS SUIS (BACT.)
ИЗОЛЯТЫ
СВИНЬИ
СЕРОТИПЫ
ВИРУЛЕНТНОСТЬ
МАРКЕРЫ
ГИДРОФОБНОСТЬ

Доп.точки доступа:
Lammler, C.

РЖ ВИНИТИ 34 (BI14) 96.07-04Б4.200

Salasia, S. I.O.
Properties of a Streptococcus suis isolate of serotype 2 and two capsular mutants [Text] / S. I.O. Salasia, C. Lammler, G. Herrmann // Vet. Microbiol. - 1995. - Vol. 45, N 2-3. - P151-156 . - ISSN 0378-1135
Перевод заглавия: Свойства изолятов Streptococcus suis серотип 2 и двух капулярных мутантов
Аннотация: Encapsulation is thought to be a critical virulence factor of Streptococcus suis. In the present study two capsular type 2 mutants of S. suis (M42 and M2) and their S. suis parent strain (89-1591) were further characterized. All three cultures reacted with group D specific antiserum whereas parent strain 89-1591 and mutant M42 but not mutant M2 reacted with specific antiserum against capsular type 2. Both mutants had higher surface hydrophobicity and showed an increased adherence to human epithelial cells and to lung macrophages of rabbits as compared to the parent strain. In phagocytosis experiments with polymorphonuclear leucocytes the encapsulated parent strain was more resistant to phagocytosis than both mutant strains. These findings might help to understand the role of encapsulation of S. suis in the process of infection

ГРНТИ	34.27.29

ВИНИТИ 341.27.29.07.19.11
Рубрики: STREPTOCOCCUS SUIS (BACT.)
СЕРОТИПЫ 2
КАПСУЛЯРНЫЕ МУТАНТЫ
ИНКАПСУЛЯЦИЯ
АДГЕЗИЯ
ФАГОЦИТОЗ

Доп.точки доступа:
Lammler, C.; Herrmann, G.

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