Table 1.

Yield of lipopolysaccharides (LPS), exopolysaccharides (EPS) and biofilm from S. meliloti cells

	LPS (mg/g cells)	EPS (mg/g cells)	Biofilm (OD570)a
Control	33 ± 4	700 ± 100	0.032 ± 0.001
IAA-treated	46 ± 5	700 ± 98	0.030 ± 0.002
RD64	50 ± 3	900 ± 100	0.040 ± 0.003

The values reported in the Table are the averages ± standard deviation of at least five independent biological experiments.

^aCrystal violet staining quantification.