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Sexually Transmitted Diseases > Gonorrhea > Laboratory Information > Related
Species > Neisseria polysaccharea
Neisseria polysaccharea N. polysaccharea was described
in 1983 and is characterized by its ability to produce acid from glucose
and maltose and polysaccharide from sucrose. Strains of this species
were previously identified as nontypable strains of N. meningitidis.
Strains of N. polysaccharea also may have been misidentified previously
as N. subflava because their ability to produce polysaccharide from sucrose
was not determined. Table 1. Characteristics of N. polysaccharea
Neisseria species which may be misidentified as N. polysaccharea by acid production tests and supplemental tests that differentiate between themTable 2. Differential characteristics of Neisseria spp. which produce
acid from glucose and maltose and supplemental tests that differentiate
between them.
Abbreviations: G, glucose; M, maltose, S, sucrose; F, fructose; L, lactose;
PAP. Prolyl aminopeptidase; GGT,?(gamma)-glutamyltransferase; ß(beta)-GAL, ß(beta)-galactosidase,
. +, most strains positive; -, most strains negative; (+), some strains
give weak positive reactions which are not representative of the species;
R, strains grow well on selective medium for N. gonorrhoeae and/or show
no inhibition around a colistin disk (10 micrograms); (R), most strains
susceptible, some strains resistant. Although enzyme substrate tests are intended to be used only for the identification of Neisseria spp. isolated on selective media for N. gonorrhoeae, isolates of N. polysaccharea may give the same reaction (PAP +ve) in this test as do isolates of N. gonorrhoeae. Thus additional tests must be performed to differentiate between these species. Table 3. Supplemental tests which permit differentiation among Neisseria and related species that produce prolyl aminopeptidase in enzyme substrate tests
Abbreviations: G, glucose; M, maltose, S, sucrose; F, fructose; L, lactose; PAP. Prolyl aminopeptidase; GGT,γ(gamma)-glutamyltransferase; ß(beta)-GAL, ß(beta)-galactosidase. +, most strains positive; -, most strains negative; (+), some strains give weak positive reactions which are not representative of the species; R, strains grow well on selective medium for N. gonorrhoeae and/or show no inhibition around a colistin disk (10 micrograms); (R), most strains susceptible, some strains resistant. ReferencesBouquette MT, Marcos C, Saez-Nieto JA. Characterization of Neisseria polysaccharea sp. nov. (Riou, 1983) in previously identified noncapsular strains of Neisseria meningitidis. J Clin Microbiol 1986;23:973-975. Bøvre K. Family VIII. Neisseriaceae Prevot, In NR Krieg (ed.). Manual of Systematic Bacteriology, vol. 1. The Williams & Wilkins co., Baltimore. 1984. p 288-309. Guibourdenche M, Popoff MY, Riou JY. Deoxyribonuclease acid relatedness among Neisseria gonorrhoeae, N. meningitidis, N. lactamica, N. cinerea, and "Neisseria polysaccharea." Ann Inst Pasteur Microbiol 1986;137B:177-185. Knapp JS. Historical perspectives and identification of Neisseria and related species. Clin Microbiol Rev 1988;1:415-431. Knapp JS, Rice RJ. Neisseria and Branhamella. In. Murray PR, Baron EJ, Pfaller MA, Tenover FC, Yolken RH. (ed.). Manual of Clinical Microbiology. 6th ed. American Society for Microbiology, Washington D. C, 1995. Riou JY, Guibourdenche M. Neisseria polysaccharea sp. nov. Int J Syst Bacteriol 1987;37:163-165. Riou JY, Guibourdenche M, Popoff MY. A new taxon in the genus Neisseria. Ann Microbiol (Paris) 1983;134B:257-267. Vedros NA. Genus I. Neisseria Trevisan 1885, 105AL, In NR Krieg (ed.).
Bergey's Manual of Systematic Bacteriology, vol. 1. The Williams & Wilkins
Co., Baltimore. 1984. p 290-296. |
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