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.
Phylum Proteobacteria, Class Betaproteobacteria, Order Neisseriales, Family Neisseriaceae, Genus Neisseria, Neisseria shayeganii
Wolfgang et al. 2011.
Gram-negative rods, 1.0-1.5 / 2.5-5.5 μm. Nonmotile.
Isolated from sputum and from an arm wound.
- 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:
Some results are based on API NH and API ZYM identification systems.
Positive results for alkaline phosphatase, catalase, cystine arylamidase,
esterase lipase (C8), gamma-glutamyltransferase, nitrate reduction & oxidase.
Negative results for arginine dihydrolase, aesculin hydrolysis, beta-galactosidase, gelatin hydrolysis, H2S production (in triple-sugar
iron agar), indole production, lysine decarboxylase, ornithine decarboxylase, Simmons’ citrate, urease, valine arylamidase, 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.
Acid production from glucose is variable (usually negative, but positive in API NH (2 strains) and peptone water medium (1 strain).
(c) Costin Stoica