Table 6.

Heavy metal tolerance ability of selected PGPR strains.

S. No.	PGPR	Heavy metal tolerance (mg/l)
		Cd						Pb						Ni
		30	100	200	500	1000	1500	30	100	200	500	1000	1500	30	100	200	500	1000	1500
1	P. chinense strain P1	+	+	+	+	+	+	+	+	+	+	+	+	+	+	+	+	+	−
2	B. cereus strain P2	+	+	+	+	+	+	+	+	+	+	+	−	+	+	+	+	+	−