共查询到20条相似文献,搜索用时 31 毫秒
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Sylvia F. Bartes W. J. Martin P. E. O''''Connor L. Marsden H. Vogel 《Applied microbiology》1969,18(2):282-283
The antigenic formula of a new serotype, Salmonella enteritidis serotype Ordonez, was characterized as (1),13,23,37:y:l,w. 相似文献
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A new serotype of Salmonella is described. Culture 1505-68, serotype 13,22,36:l, v:1,5, was recovered from the stool of a female patient and designated Salmonella enteritidis ser. Lovelace. 相似文献
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Salmonella bacteriophage glycanases: endorhamnosidases of Salmonella typhimurium bacteriophages. 下载免费PDF全文
Twelve bacteriphages lysing only smooth Salmonella typhimurium strains were shown to have similar morphology--an icosahedric head to which a short, noncontractile tail carrying six spikes was attached. All phages degraded their lipopolysaccharide (LPS) receptors as shown by their ability to cleave off [14C]galactosyl-containing oligosaccharides from S. typhimurium cells labeled in their LPS. The oligosaccharides inhibited the alpha-D-galactosyl-specific Bandeiraea simplicifolia lectin agglutination of human type B erythrocytes, indicating that all 12 phage glycanases were of endorhamnosidase specificity, i.e., hydrolyzed the alpha-L-rhamnopyranosyl-(1 leads to 3)-D-galactopyranosyl linkage in the S. typhimurium O-polysaccharide chain. Two of the phages, 28B and 36, were studied in more detail. Whereas the phage 28B glycanase hydrolyzed the S. typhimurium LPS into dodeca- and octasaccharides, the phage 36 glycanase in addition cleaved off tetrasaccharides. Both phage enzymes hydrolyzed the O-polysaccharide chains of LPS from Salmonella belonging to serogroups A, B, and D1, which are built up of tetrasaccharide-repeating units identical except for the nature of the 3,6-dideoxyhexopyranosyl group (R). : FORMULA:(SEE TEXT). The phage 28B and 36 endorhamnosidases hydrolyzed also an LPS from which the 3,6-dideoxyhexosyl substituents had previously been hydrolyzed off. However, neither of the enzymes was active on LPS preparations in which the C2-C3 bond of the L-rhamnopyranosyl ring had been opened by periodate oxidation. Glucosylation at O-6 of the D-galactopyranosyl residues in the S. typhimurium LPS was found to be incompatible with hydrolysis by both enzymes. However, in an LPS glucosylated at O-4 of the D-galactopyranosyl residues, the adjacent alpha-L-rhamnopyranosyl linkages were found to be perferentially cleaved. 相似文献
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Two Additional Salmonella Serotypes: Salmonella enteritidis Ser 58:a:- and Salmonella enteritidis Ser 44Z36, Z38:- 下载免费PDF全文
Mary M. Ball William J. Martin Ronald M. Wood Catherine E. Powers 《Applied microbiology》1969,17(6):921-922
The antigenic compositions of two additional Salmonella serotypes isolated from the feces of man were determined to be 58:a:- and 44:Z(36), Z(38)-. 相似文献