Table 3.

Morphological, physiological, staining, and biochemical characteristics of isolates.

Features/tests	Bacterial isolates (BI)
Morphological/ Physiological/ staining/biochemical characteristics	BI 1	BI 2	BI 3	BI 4	BI 5	BI 6	BI 7	BI 8
Cell shape	Cocci	Cocci	Cocci	Rod	Cocci	Cocci	Rod	Cocci
Cell arrangement	Irregular clusters	Irregular clusters	Irregular clusters, short chains, and pairs	Chain and single	Irregular clusters, and short chain	Irregular clusters, and short chain	Chain and single	Irregular clusters, short chains, and pairs
Motility	(+)	(−)	(+)	(+)	(+)	(+)	(+)	(+)
Gram staining	(+)	(+)	(+)	(+)	(+)	(+)	(+)	(+)
Catalase test	(+)	(±)	(+)	(+)	(±)	(+)	(+)	(+)
Oxidase test	(−)	(−)	(−)	(+)	(−)	(−)	(+)	(−)
Urease test	(−)	(−)	(+)	(+)	(−)	(−)	(−)	(+)
Indole test	(−)	(−)	(−)	(−)	(−)	(−)	(−)	(−)
Methyl red test	(−)	(−)	(−)	(+)	(−)	(−)	(+)	(−)
Voges-Proskauer test	(−)	(−)	(−)	(+)	(−)	(−)	(+)	(−)
Citrate test	(−)	(−)	(−)	(−)	(−)	(+)	(−)	(−)
Gelatin hydrolysis test	(−)	(−)	(−)	(+)	(±)	(−)	(+)	(−)
Glucose fermentation with gas production	(−)(−)	(−)(−)	(−)(−)	(+)(+)	(+)(+)	(+)(−)	(+)(+)	(+)(±)
Mannitol fermentation with gas production	(−)(−)	(−)(−)	(−)(−)	(±) (−)	(+)(−)	(±)(−)	(±)(−)	(−)(−)
Sucrose fermentation with gas production	(+)(−)	(−)(−)	(−)(−)	(+)(−)	(+)(±)	(+)(−)	(+)(−)	(−)(−)
Maltose fermentation with gas production	(−)(−)	(−)(−)	(−)(−)	(+)(−)	(+)(−)	(+)(−)	(+)(−)	(+)(±)

+,positive; ±,weakly positive; −,negative.