Table 2.

Intracellular monovalent ion concentrations

Growth condition	Ion concentration (mol/L)
	K+	Li+	Rb+	Cs+	Total
8 mM KCl	1.40 ± 0.17	1.40 ± 0.17 × 10−4	1.04 ± 0.13 × 10−4	1.07 ± 0.13 × 10−5	1.38 ± 0.25
120 mM KCl	2.03 ± 0.25	1.10 ± 0.14 × 10−4	5.46 ± 0.67 × 10−5	1.28 ± 0.16 × 10−5	2.03 ± 0.25
720 mM KCl	2.43 ± 0.30	8.37 ± 1.0 × 10−5	4.73 ± 0.58 × 10−5	ND	2.43 ± 0.21
120 mM LiCl	1.33 ± 0.16	1.44 ± .18 × 10−2	9.28 ± 1.1 × 10−5	1.25 ± 0.15 × 10−5	1.34 ± 0.24
120 mM RbCl	0.49 ± 0.06	ND	0.633 ± 0.081	5.83 ± 0.75 × 10−6	1.13 ± 0.22
120 mM CsCl	0.88 ± 0.11	ND	2.45 ± 0.31 × 10−4	0.302 ± 0.038	1.19 ± 0.22

Total concentration is given as the sum of all ion concentrations found. Concentrations below the ICP-MS detection limit were given a value of 0.00 when calculating total concentrations

ND not detected, below detection limit