Physiological and comparative proteome analyses reveal low-phosphate tolerance and enhanced photosynthesis in a maize mutant owing to reinforced inorganic phosphate recycling

Table 1 Influence of different phosphate treatments on biomass, inorganic phosphorus concentration and phosphorus contents of Qi319 and Qi319-96

Inbred lines	Treatment	Inorganic phosphorus content (μg g^-1 FW)	Biomass (g/three plant)			P contents (mg P g^-1DW)
Inbred lines	Treatment	Inorganic phosphorus content (μg g^-1 FW)	Root	Shoot	total	Root	Shoot	total
Qi319-96	+P	24.29 ± 1.01a	4.36 ± 0.08a	8.70 ± 0.09a	13.06 ± 0.17a	1.71 ± 0.05a	2.56 ± 0.03a	2.27 ± 0.04a
Qi319-96	-P	17.39 ± 0.99c	4.01 ± 0.06b	5.65 ± 0.15b	9.66 ± 0.21b	0.58 ± 0.01b	0.87 ± 0.01b	0.75 ± 0.02b
Qi319	+P	20.22 ± 1.02b	4.47 ± 0.03a	8.84 ± 0.06a	13.31 ± 0.15a	1.61 ± 0.07a	2.48 ± 0.06a	2.19 ± 0.07a
Qi319	-P	11.37 ± 0.86d	3.35 ± 0.03c	5.37 ± 0.09b	8.72 ± 0.07c	0.44 ± 0.01c	0.86 ± 0.02b	0.68 ± 0.02c

Three seedlings per bottle were cultured in phosphorus saturation solution (1000 μM KH₂PO₄) to the three-leaf stage, followed by low phosphate stress solution (5 μM KH₂PO₄) for an additional 25 days to the six–seven-leaf stage. Values represent the means of nine seedlings ± SD. Values with different letters within a row are significantly different (P < 0.05) by multiple comparison analysis

ISSN: 1471-2229