Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Aerococcaceae, Genus Facklamia, Facklamia ignava Collins et al.
Gram-positive, ovoid cells occurring singly, in pairs or in short chains. Non-motile.
Non-pigmented and non-hemolytic colonies are produced on 5% sheep blood agar.
Can grow in 6.5% NaCl broth. Facultatively anaerobic. No growth at 10 or 45 ºC.
Negative bile-esculin reaction.
Habitat is unknown. Isolated from human blood. Susceptible to vancomycin.
- Collins, M.D., P.A. Lawson, R. Monasterio, E. Falsen, B. Sjoden and R.R. Facklam. 1998a. Facklamia ignava sp. nov., isolated from
human clinical specimens. J. Clin. Microbiol. 36: 2146–2148.
- Matthew D. Collins and Enevold Falsen, 2009. Genus V. Facklamia Collins, Falsen, Lemosy, Akervall, Sjoden and Lawson 1997,
882VP In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W. Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual
of Systematic Bacteriology, Volume 3: The Firmicutes, Springer, 541-544.
Positive results for alanine-phenylalanineproline arylamidase, hippurate hydrolysis,
pyroglutamic acid arylamidase, acid production from glucose (weak reaction and
without gas) and trehalose.
Negative results for arginine dihydrolase, alkaline phosphatase, catalase, esculin hydrolysis, gelatin hydrolysis, glycyltryptophan
arylamidase, beta-glucuronidase, beta-glucosidase, alpha- and beta-galactosidase, indole preduction, beta-mannosidase, nitrate
reduction, pyrazinamidase, urease, Voges-Proskauer reaction, acid production from: amygdalin, L-arabinose, D-arabitol, cellobiose,
cyclodextrin, inulin, glycogen, lactose, D-mannose, melibiose, melezitose, mannitol, pullulan, D-raffinose, D-ribose, sorbitol, sucrose,
D-tagatose, D- and L-xylose.
Variable results for acid production from maltose.
(c) Costin Stoica