Table 2. Growth ability of eleven strains in the presence of different heavy metals at pH 4 and 5.

STRAINS	pH 4					pH 5
	Cd	Pb	Co	Hg	MIX	Cd	Pb	Co	Hg	MIX
LMTK5	x					x	x
LMTK11	x			x	x	x	x	x	x	x
LMTK28	x					x	x
LMTK32	x					x	x	x
LMTK33	x					x	x
LMTK34	x					x	x
LMTK36	x					x	x	x
LMTK37							x
LMTK39							x
LMTK42	x					x	x
LMTK43	x	x				x	x

x, Growth ability; MIX, mixture of different heavy metals.