Skip to main content

Table 2 Comparison of phenotypic and biochemical characteristics of Bacillus endophyticus, B. anthracis, B. cereus, B. megaterium and B. smithii

From: Whole genome sequencing and identification of Bacillus endophyticus and B. anthracis isolated from anthrax outbreaks in South Africa

Microbiological characteristics B. endophyticus B. anthracis B. cereus B. megaterium B. smithii
Gram reaction + + + + +
Rods (μm) 2.5–3.5 × 0.5–1.5 3–6 × 1–1.25 3-5 × 1–1.2 2–5 × 1.2–1.5 5–6 × 0.8–1.0
Spores Ellipsoidal/cylindrical Ellipsoidal/cylindrical Ellipsoidal/cylindrical Ellipsoidal/Spherical Ellipsoidal/cylindical
Haemolysis NH NH H H%% ND
Motility Non-motile Non-motile Motile Non-motile motile
Capsule + +
Penicillin S S R ND ND
Gelatin hydrolysis + * + +
Nitrate reduction + + (−)
Starch hydrolysis + + + W+
Voges Proskaeur (VP) + +
γ –phage R S$ R S@ ND
Casein + + +
Egg yolk/Lecithinase + +
Urea hydrolysis -%%
Citrate W+ + + (−)
NaCl 2–10% 5% 2–7% 7% 2–3%
Catalase + + + + +
Indole
Oxidase + + (+) +
  1. Abbreviations: +, positive, W+, weakly positive, −, negative, (), variable, S, susceptible, R, resistance, ND, not determined, NH, non-haemolytic, *, inverted fir tree, $, B. anthracis strains resistance to γ-phage have been reported [22], @ resistant γ-phage B. megaterium strain has been reported at Kansas State University [44] . All data of B. endophyticus were obtained in the study and supplemented with information of Reva et al. [1]. B. anthracis and B. cereus information was compiled from WHO [42]; %% Beesley et al. [27] reported B. megaterium non-haemolytic and urea hydrolysis strains