Bacteria Identification Tools: Gram Negative Aerobic Fermentative Rods

Probabilistic Identification of Bacteria: Gram Negative Aerobic Fermentative Rods

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
Motility at 37慢	Positive	Negative
Motility at RT	Positive	Negative
Growth at 37慢	Positive	Negative
Growth at RT	Positive	Negative
Pigment negative	Positive	Negative
Dirty pigment	Positive	Negative
Brown pigment	Positive	Negative
Violet pigment	Positive	Negative
Green pigment	Positive	Negative
Yellow pigment	Positive	Negative
Red pigment	Positive	Negative
Orange pigment	Positive	Negative
MacConkey growth	Positive	Negative
Catalase	Positive	Negative
Oxidase	Positive	Negative
Hugh & Leifson -ve or alkaline	Positive	Negative
H+L oxidative	Positive	Negative
H+L fermentative	Positive	Negative
H+L alkaline	Positive	Negative
Nitrate reduction	Positive	Negative
Simmon's citrate	Positive	Negative
Christensen's citrate	Positive	Negative
Urease	Positive	Negative
Gelatin stab	Positive	Negative
Gelatin plate	Positive	Negative
KCN	Positive	Negative
H2S paper	Positive	Negative
H2S TSI	Positive	Negative
Gluconate	Positive	Negative
Malonate	Positive	Negative
ONPG	Positive	Negative
PPA	Positive	Negative
Arginine dihydrolase	Positive	Negative
Lysine decarboxylase	Positive	Negative
Ornithine decarboxylase	Positive	Negative
PWS glucose acid	Positive	Negative
PWS glucose gas	Positive	Negative
0.4% Selenite	Positive	Negative
Caesin hydrolysis	Positive	Negative
DNAase	Positive	Negative
Adonitol PWS	Positive	Negative
Arabinose PWS	Positive	Negative
Cellobiose PWS	Positive	Negative
Dulcitol PWS	Positive	Negative
Glycerol PWS	Positive	Negative
Inositol PWS	Positive	Negative
Lactose PWS	Positive	Negative
Maltose PWS	Positive	Negative
Mannitol PWS	Positive	Negative
Raffinose PWS	Positive	Negative
Rhamnose PWS	Positive	Negative
Salicin PWS	Positive	Negative
Sorbitol PWS	Positive	Negative
Sucrose PWS	Positive	Negative
Trehalose PWS	Positive	Negative
Xylose PWS	Positive	Negative
Starch PWS	Positive	Negative
Methyl red 37慢	Positive	Negative
Methyl red RT	Positive	Negative
Voges-Proskauer 37慢	Positive	Negative
Voges-Proskauer RT	Positive	Negative
Indole	Positive	Negative
Acetate	Positive	Negative
Mucate	Positive	Negative
Growth at 5慢	Positive	Negative
Growth at 42慢	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.

Holmes, B., Dawson, C.A. and Pinning, C.A. (1986) A revised probability matrix for the identification of Gram-negative, aerobic, rod-shaped, fermentative bacteria. Journal of General Microbiology 132, 3113-3135.