Table 3.

Inorganic phosphate solubilization efficiency of E. brucei root nodule endophytesin liquid NBRIP medium during six days of incubation

Isolate	Taxonomic group	PA (solid) SI	Tricalcium phosphate[Ca3(PO4)2]				Aluminum phosphate [ AlPO4]				Iron phosphate [FePO4]
			Net P released Day 3 (mgL−1)	Net P increased at day 3 by	Net P released Day 6 (mgL−1)	Net P increased at day 6 by	Net P released Day 3 (mgL−1)	Net P increased at day 3 by	Net P released Day 6 (mgL−1)	Net P increased at day 3 by	Net P released Day 3 (mgL−1)	Net P increased at day 3 by	Net P released Day 6 (mgL−1)	Net P increased at day 3 by
AU4	A. soli	6.00a	108.96a	4.50	120.36a	4.97	87.33a	12.40	99.66b	14.15	84.04a	19.54	93.22b	21.67
BU2	G. cerinus	4.12f	106.76 cd	4.41	111.17c	4.59	84.23b	11.96	98.35b	13.97	80.95b	18.83	81.20e	18.88
DM17	B. thuringiensis	5.00c	104.62ed	4.32	109.48d	4.52	77.78c	11.05	91.91d	13.05	78.50d	18.26	89.34c	20.77
EN5	G. cerinus	4.20f	102.87f	4.25	106.73f	4.40	77.32c	10.98	89.57e	12.72	82.05b	19.08	95.14ba	22.12
EN6	G. cerinus	4.44d	104.71ed	4.33	107.91e	4.45	77.10c	10.95	95.12c	13.51	81.38b	18.93	82.83ed	19.26
GH6	A. xylosoxidans	5.40b	103.73ef	4.28	106.03f	4.37	64.18e	9.12	91.85d	13.04	81.10b	18.86	88.68c	20.62
RG5	A. soli	4.00 g	105.60 cd	4.36	109.97d	4.54	27.12f	3.85	45.12f	6.40	40.46e	9.41	48.85f	11.36
RG6	A. soli	4.33ed	107.48b	4.44	112.82b	4.66	84.12b	11.95	102.14a	14.50	79.68c	18.53	96.07a	22.43
TL3	G. cerinus	4.30df	100.82 g	4.16	103.57 g	4.27	74.97d	10.65	94.24c	13.38	81.71b	19.00	83.56d	19.43

PA Pikovskaya agar, SI Solubilization index, NBRIP National Botanical Research Institute Phosphate medium. Values are expressed as means of three independent experiments. Means sharing the same letters in the same column do not differ significantly at p ≤ 0.05 by ANOVA Duncan test