TABLE 1.

Comparative effects of various osmotic agents on the growth of S. meliloti 102F34

Osmotic agent addeda	Growth parameter in LAS medium containingb:
	No osmoprotectant		1 mM GB
	μ	ODmax	μ	ODmax
None	0.200	1.9	0.200	2.0
0.65 M NaCl	0.022	0.3	0.076	1.9
0.84 M sucrose	0.083	2.1	0.083	2.1
0.9 M GB	0.083	1.7	NAc	NA
0.9 M mannitol	0.040	0.9	0.083	2.1

^aCultures were grown in LAS medium containing the indicated osmoticum agents, all added at concentrations which developed an osmotic pressure of 3.14 MPa. 

^bGrowth parameters are expressed as the growth rate (μ, in generations/hour) and the maximal OD₅₇₀ (OD_max) at the stationary phase. 

^cNA, not applicable.