Colonies are small, circular, entire, convex, moist, light yellow to grey and
nonhaemolytic. No growth is observed on MacConkey agar after 5 days. Facultative
anaerobe. Grows between 10 and 42 ºC.
Taxonomy
Morphology
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Pathogenicity
References
Phylum Proteobacteria, Class Betaproteobacteria, Order Neisseriales, Family Neisseriaceae, Genus Neisseria, Neisseria wadsworthii
Wolfgang et al. 2011.
Gram-negative coccoid cells, 1.3-1.8 μm in diameter, grouped in pairs and chains.
Nonmotile.
Isolated from arm wound and peritoneal fluid.
Undetermined.
  1. William J. Wolfgang,  Andrea N. Carpenter,  Jocelyn A. Cole,  Sabine Gronow,  Andrea Habura,  Sherly Jose,  Elizabeth J. Nazarian,  
    Donna J. Kohlerschmidt,  Ronald Limberger,  Dianna Schoonmaker-Bopp,  Cathrin Spröer, Kimberlee A. Musser. Neisseria
    wadsworthii sp. nov. and Neisseria shayeganii sp. nov., isolated from clinical specimens. Int J Syst Evol Microbiol, January 2011 61:
    91-98.
Some results are based on API NH and API ZYM identification systems.

Positive results for catalase, esterase (C4), esterase lipase (C8), leucine arylamidase,
cystine arylamidase, acid phosphatase, gamma-glutamyltransferase, valine
arylamidase, nitrate reduction & oxidase.

Negative results for alkaline phosphatase, lipase (C14), aesculin hydrolysis, gelatin hydrolysis, H
2S production (in triple-sugar iron
agar), indole production, lysine decarboxylase, ornithine decarboxylase, Simmons’ citrate, urease, valine arylamidase,  trypsin, alpha-
chymotrypsin, alpha- and beta-galactosidase, beta-glucuronidase, alpha- and beta-glucosidase, N-acetyl-beta-glucosaminidase,
alpha-mannosidase, alpha-fucosidase, acid production from: L-arabinose, cellobiose, dulcitol, D-fructose, D-galactose, glycerol,
inositol, inulin, lactose, maltose, D-mannitol, D-mannose, melibiose, raffinose, D-rhamnose, D-salicin, D-sorbitol, sucrose, trehalose
& D-xylose.

Variable results for arginine dihydrolase, acid production from glucose.
Neisseria wadsworthii
(c) Costin Stoica
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