Table 4.

Metabolic characterization of endophytic bacteria strains as relates to the promotion of plant growth.

Title	B. subtilis Isolates
Characteristics	2S	5Cs	5Cm	6Ss	6Sm
IAA (μg·mL−1)	1.6	3.7	2.6	1.4	2.2
Phosphate solubilization	-	-	-	-	-
Potassium solubilization	-	-	-	-	-
Growth in nitrogen-free medium	+	+	+	+	+
Proteolytic activity	+	+	+	+	+
Amylolytic activity	+	+	+	+	+
Siderophore detection	+	+	+	+	+
Biofilm formation	-	-	-	-	-
Lipopeptide production (mg·mL−1)	1.00	1.05	0.94	0.76	1.24