Bacteria Identification Tools: Bacillus

Probabilistic Identification of Bacteria: Bacillus spp.

Identify an unknown bacterial isolate by selecting the checkboxes for known test results, and clicking on the submit button. Leave boxes blank for unknown or indeterminate test results.

Test	Value
Length > 3痠	Positive	Negative
Gram-positive	Positive	Negative
Spores oval	Positive	Negative
Spores central	Positive	Negative
Spores bulging	Positive	Negative
Aesculin hydrolysis	Positive	Negative
Casein hydrolysis	Positive	Negative
Hippurate hydrolysis	Positive	Negative
Starch hydrolysis	Positive	Negative
Urease	Positive	Negative
Chloramphenicol resistance	Positive	Negative
Nalidixic acid resistance	Positive	Negative
Polymyxin resistance	Positive	Negative
Streptomycin resistance	Positive	Negative
Cellobiose acid	Positive	Negative
Fructose acid	Positive	Negative
Galactose acid	Positive	Negative
Lactose acid	Positive	Negative
Mannose acid	Positive	Negative
Raffinose acid	Positive	Negative
Salicin acid	Positive	Negative
Xylose acid	Positive	Negative
Citrate utilisation	Positive	Negative
Succinnate utilisation	Positive	Negative
Growth at 50C	Positive	Negative
Growth in 10% NaCl	Positive	Negative
Anaerobic growth	Positive	Negative
Nitrate reduction	Positive	Negative
Oxidase reaction	Positive	Negative
Voges-Proskauer test	Positive	Negative

Identification Results Table:

Enter test result data into checkboxes to proceed with identification

The following tests gave unexpected results for the most likely taxa:

No atypical results found

References:

Bryant, T.N. (2004) PIBWin -- software for probabilistic identification. Journal of Applied Microbiology 97(6):1326-7.

Priest, F.G. and Alexander, B. (1988) A frequency matrix for the probabilistic identification of some bacilli. Journal of General Microbiology 134, 3011-3018.