Table 2. Differential characteristics of Clostridium jeddahense JCD^T, C. senegalense JC122 [11], C. dakarense FF1 [34], C. beijerinckii NCIMB 8052, C. difficile B1, C. cellulolyticum H10, C. leptum DSM 753 and C. sporosphaeroides DSM 1294 [53]†.

Properties	C.      jeddahense	C.      sporosphaeroides	C.      cellulolyticum	C.      leptum	C.      senegalense	C.      dakarense	C.      beijerinckii	C.      difficile
Cell diameter (µm)	1.0	0.5-0.6	1.5	0.6-0.8	1.1	1.2	1.7	3.0
Oxygen requirement	Strictly      anaerobic	Strictly      anaerobic	Strictly      anaerobic	Strictly anaerobic	Strictly      anaerobic	Strictly      anaerobic	Strictly      anaerobic	Strictly      anaerobic
Gram stain	Positive	Positive	Positive	Positive	Positive	Positive	Variable	Variable
Motility	Motile	Non Motile	Motile	Non Motile	Motile	Motile	Motile	Motile
Endospore formation	+	+	+	+	+	+	+	+
Indole	+	-	-	Na	-	+	Na	Na
Production of
Alkaline phosphatase	+	Na	Na	Na	-	+	Na	Na
Catalase	-	Na	-	Na	-	-	-	Na
Oxidase	-	Na	Na	Na	-	-	Na	Na
Nitrate reductase	-	-	-	Na	-	-	-	-
Urease	-	-	-	Na	-	-	-	Na
β-galactosidase	-	Na	Na	Na	-	-	Na	Na
N-acetyl-glucosamine	-	Na	Na	Na	+		Na	Na
Acid from
L-Arabinose	-	-	Na	Na	Na	-	+	-
Ribose	-	-	Na	W	Na	-	-	-
Mannose	-	-	Na	-	Na	-	+	+
Mannitol	-	-	Na	-	Na	-	+	+
Sucrose	-	-Na	Na	W	Na	-	+	+
D-glucose	-	Na	Na	Na	Na	+	+	Na
D-fructose	-	Na	Na	Na	Na	-	+	+
D-maltose	-	Na	Na	Na	Na	+	+	-
D-lactose	-	Na	Na	Na	Na	-	+	-
G+C content (%)	52		41	51	26.8	27.98	28	28
Habitat	Human gut	Environment	Compost	Human gut	Human gut	Human gut	Human gut	Human gut

^†(Na = data not available; w = weak, v = variable reaction)