Table 2. Possibility of PO₄^3–-accumulation of PAOs and four reference strains including Streptococcus, Alcaligenes, Pseudomonas, Enterobacteriacease

Strains	Salt content (‰)	Cumulative value (μg/100 mL) at survey time intervals (h)						pH after 120 h
		0	24	48	72	96	120
Acinetobacter guillouiae (A1)	0	0.00a± 0.00	91.94b± 0.014	168.58c± 0.011	338.44e± 0.002	ND	ND	7–8.5
	5	0.00a,a± 0.00	31.93a,a± 0.067	152.26b,a± 0.011	243.78c,a± 0.941	301.16d,a± 0.03	338.40e,a± 0.003
	10	0.00a,a± 0.00	60.39a,b± 0.097	130.63b,a± 0.027	224.10c,a± 0.095	299.10d,a ±0.01	321.29d,a± 0.002
	20	0.00a,a± 0.00	34.85a,a± 0.014	107.75b,b± 0.079	207.16c,b ± 0.080	285.73d,a ± 0.01	285.55d,b± 0.019
	30	0.00a,a± 0.00	34.85a,a± 0.014	116.62b,b± 0.035	207.18c,b± 0.080	285.73d,a ± 0.01	285.56d,b± 0.019
Rhodotorula sp.(A2)	0	0.00a± 0.00	103.28b± 0.011	117.16b± 0.034	130.19b± 0.046	ND	ND	7–9
	5	0.00a,a± 0.00	87.08b,a± 0.043	80.70b,a± 0.052	134.80c,a± 0.080	250.52d,a± 0.04	275.71d,a± 0.067
	10	0.00a,a± 0.00	15.96a,a± 0.032	66.33b,b± 0.019	132.66c,a± 0.046	214.78d,a± 0.05	277.92e,a± 0.059
	20	0.00a,a± 0.00	26.78a,a± 0.068	31.48a,b± 0.019	188.80b,b± 0.034	241.57c,b± 0.06	242.81c,b± 0.072
	30	0.00a,a± 0.00	24.74a,a± 0.024	49.04b,b± 0.037	154.13c,b± 0.071	223.65d,a ± 0.00	244.58d,b ± 0.042
Acinetobacter lwoffii(A3)	0	0.00a± 0.00	152.58a± 0.051	252.59b± 0.002	256.42b± 0.003	ND	ND	7–8
	5	0.00a,a± 0.00	119.54b,a± 0.11	197.23c,a± 0.027	206.80c,a± 0.076	232.90d,a± 0.07	246.80d,a± 0.080
	10	0.00a,a± 0.00	118.65b,a± 0.03	184.63c,a± 0.015	233.00d,a± 0.066	263.74e,a± 0.06	279.70e,b± 0.057
	20	0.00a,a± 0.00	130.90b,a± 0.07	149.70c,b± 0.11	174.00d,b± 0.037	198.28d,b± 0.04	255.31e,a± 0.041
	30	0.00a,a± 0.00	24.74a,b± 0.12	49.04a,c± 0.049	154.13b,b± 0.045	223.65c,b± 0.06	244.58c,a± 0.081
Lactococcus raffinolactic(A5)	0	0.00a± 0.00	155.41b± 0.040	195.36c± 0.017	333.63d± 0.017	ND	ND	7–8.5
	5	0.00a,a± 0.00	34.58b,a± 0.069	81.15c,a± 0.030	110.23c,a± 0.015	146.77d,a± 0.02	186.77e,a± 0.022
	10	0.00a,a± 0.00	43.63b,a± 0.027	68.11c,a± 0.026	70.86c,b± 0.037	150.50d,a± 0.00	207.15e,a± 0.076
	20	0.00a,a± 0.00	56.05b,a± 0.115	55.34b,b± 0.027	101.81c,a± 0.085	153.42d,a± 0.02	281.65e,b± 0.058
	30	0.00a,a± 0.00	41.50b,a± 0.04	75.83c,a± 0.020	121.32d,a± 0.034	135.86d,a± 0.03	213.23e,a± 0.06
Streptococcus		ND	174	ND	ND	ND	ND	ND
Alcaligenes		ND	224	ND	ND	ND	ND	ND
Pseudomonas		ND	1,434	ND	ND	ND	ND	ND
Enterobacteriacease		ND	91	ND	ND	ND	ND	ND

All data has presented as mean ± SE (n = 3) statistical differences (p < 0.05) with Multiple’s ranges test. The initial values provided differences of each inoculate period. The second value provided differences of each NaCl content.
Data from Bao et al. (2007).
PO₄^3–, phosphate; PAO, phosphate-accumulating organism; ND, not detected.