BMC Microbiology

Table 1 PolyP levels during growth in different Pi concentrations media

From: Copper tolerance mediated by polyphosphate degradation and low-affinity inorganic phosphate transport system in Escherichia coli

	polyP (AU)*
	MC4100		ppk ⁻ ppx ⁻		ppx ⁻		pitA ⁻ pitB ⁻		pitA ⁻		pitB
	MT	MT + P	MT	MT + P	MT	MT + P	MT	MT + P	MT	MT + P	MT	MT + P
6 h	123650 ± 10540a	152951 ± 8120a	45541 ± 5563a	38254 ± 4521a	220152 ± 15120a	252651 ± 11120a	80524 ± 9452a	91523 ± 8563a	82536 ± 8652a	95623 ± 9563a	81524 ± 9452a	90523 ± 5563a
24 h	54000 ± 9500b	125420 ± 10245a	42564 ± 4521a	40251 ± 6523a	200536 ± 16245a	241536 ± 12155a	32564 ± 4152b	93056 ± 6652a	24563 ± 3254b	89654 ± 10254a	28564 ± 4152b	88056 ± 8652a
48 h	44652 ± 4556b	138456 ± 8486a	38563 ± 7521a	41251 ± 5125a	208456 ± 12486a	238456 ± 10286a	22563 ± 5634b	89862 ± 4128a	32564 ± 4635b	92365 ± 8365a	20563 ± 5634b	91862 ± 4658a

*Fluorescence 550 nm. For each strain, different letters indicate significant differences among conditions according to Tukey’s test with a p-value of 0.05.

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