Streptococcus suis sp. nov., nom. rev.

Kilpper-Bälz, R.; Schleifer, Karl Heinz

doi:10.1099/00207713-37-2-160

Cited by 91 publications

(55 citation statements)

References 13 publications

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“…A designação Streptococcus suis como uma nova espécie bacteriana foi oficializada por Kilper-Balz & Schleifer (1987). Em 1975, Windsor & Elliot (1975 isolaram outros estreptococos provenientes de suínos que correspondiam ao grupo R de Moor e o nomearam de S. suis tipo 2.…”

Section: Novos Grupos De Lancefield R S E T (De Moor 1963)unclassified

Sorotipagem de amostras de Streptococcus suis isoladas de suínos em granjas dos Estados de São Paulo, Minas Gerais e Paraná

et al. 2002

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Section: Novos Grupos De Lancefield R S E T (De Moor 1963)unclassified

Sorotipagem de amostras de Streptococcus suis isoladas de suínos em granjas dos Estados de São Paulo, Minas Gerais e Paraná

et al. 2002

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“…Biochemical tests (growth in 6.5 % NaCl, arginine dihydrolase, production of acetoin, production of acid from lactose, salicin, glycerol, inulin, trehalose, sorbitol, sucrose and mannitol) were performed on the 23 isolates (Higgins et al, 19906;Hommez et al, 1986). All isolates had the characteristic biochemical profile for S. suis (Kilpper-Balz & Schleifer, 1987) except strain 4/3 HI (no. 17), an isolate from a clinically healthy pig.…”

Section: Methodsmentioning

confidence: 99%

“…suis can be presumptively identified by biochemical tests (Kilpper-Balz & Schleifer, 1987;Higgins & Gottschalk, 1990). Confirmation is obtained by capsular typing (Gottschalk et al, 1989).…”

Section: Introductionmentioning

confidence: 99%

Molecular analysis of isolates of Streptoccocus suis capsular type 2 by restriction-endonuclease-digested DNA separated on SDS-PAGE and by hybridization with an rDNA probe

Beaudoin

Harel

Higgins

et al. 1992

Journal of General Microbiology

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This study was undertaken to assess the discriminatory value of restriction endonuclease (RE) digestion patterns of Streptococcus suis chromosomal DNA using polyacrylamide gel electrophoresis (SDS-PAGE) and DNA-rDN A hybridization. For the RE digestion patterns, DNAs were digested separately with the enzymes B m H I and BglII and the resultant fragments were separated by SDS-PAGE. An Escherichia coli rDNA probe derived from pKK3535 was used for the hybridization. Twenty-three S. suis capsular type 2 isolates recovered from diseased and clinically healthy pigs, from a human case, and from a cow were compared in this study. The majority of isolates associated with septicaemia belonged to one restriction endonuclease analysis (REA) profile group. Isolates associated with pneumonia belonged either to the REA profile group of isolates associated with septicaemia or to a second REA profile group. The REA profiles of isolates from clinically healthy animals were more heterogeneous. The REA profile of the type 2 reference strain, S735, which was originally isolated from a pig, was very different from those of the porcine and bovine isolates but similar to the profile of the human isolate. The profiles obtained after rDNA hybridization were more homogeneous. Although different patterns were detected in the 23 isolates, there was no correlation between the source of the isolate and the patterns observed with this technique.

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“…In addition, other animal species (Devriese e t a]., 1990) as well as humans (Arends & Zanen, 1988) can be affected. S. mis shares antigens with Lancefield group D streptococci but appears to be genetically different (Kilpper-Balz & Schleifer, 1987). So far, 35 capsular types have been described (Gottschalk e t al., 1989(Gottschalk e t al., , 1991aHiggins e t al., 1995); among them, the capsular type 2 is the most frequently isolated from diseased pigs and humans (Arends & Zanen, 1988;Higgins e t al., 1992).…”

Section: Introductionmentioning

confidence: 99%

In vitro phagocytosis and survival of Streptococcus suis capsular type 2 inside murine macrophages

et al. 1996

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Opsonized or non-opsonized bacteria were incubated with macrophages in vitro and samples were obtained after 1 and 3 h incubation. Phagocytosis as well as live and dead intracellular organisms were determined by acridine orange and crystal violet staining. After 1 h incubation, non-opsonized virulent and non-virulent capsulated bacteria were poorly phagocytosed (by less than 7 O/ O of the macrophages), whereas the non-capsulated non-virulent mutant strain was highly phagocytosed (by more than 68% of the macrophages). The M42 mutant strain was more phagocytosed than the capsulated strains but less than the non-capsulated M2 mutant strain (35%). In contrast, a higher percentage of live bacteria was observed inside macrophages for the capsulated strains (1591 and S735) than for the non-or poorly capsulated mutant strains (M2 and M42). Opsonization of bacteria with rabbit serum or heat-inactivated rabbit serum significantly increased phagocytosis. For every opsonized strain, after 3 h incubation, the percentage of live bacteria within macrophages was considerably lower than the corresponding non-opsonized strains. In conclusion, the capsule of 5. suis type 2 appears to act as an important anti-phagocytic factor. However, virulent capsulated non-opsonized strains can be phagocytosed by mouse peritoneal macrophages within which they appear to survive for a t least 3 h. Serum factors other than complement increase not only phagocytosis but also intracellular killing of 5. suis of both capsulated and non-capsulated strains.

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Streptococcus suis sp. nov., nom. rev.

Cited by 91 publications

References 13 publications

Sorotipagem de amostras de Streptococcus suis isoladas de suínos em granjas dos Estados de São Paulo, Minas Gerais e Paraná

Sorotipagem de amostras de Streptococcus suis isoladas de suínos em granjas dos Estados de São Paulo, Minas Gerais e Paraná

Molecular analysis of isolates of Streptoccocus suis capsular type 2 by restriction-endonuclease-digested DNA separated on SDS-PAGE and by hybridization with an rDNA probe

In vitro phagocytosis and survival of Streptococcus suis capsular type 2 inside murine macrophages

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