Poly-γ-glutamic acid promoted maize root development by affecting auxin signaling pathway and the abundance and diversity of rhizosphere microbial community

Table 1 Effect of γ-PGA on the contents of IAA and Urease activity of maize rhizosphere soil

Drought	IAA mg/g DW)	Urease activity (μg NH₃-N/g/24 h)
0 mg/L γ-PGA	0.708 ± 0.001	917.677 ± 34.415
50 mg/L γ-PGA	0.828 ± 0.015**	1295.056 ± 74.306**

Values are means ± sd (n ≥ 3 repeats). Significant differences are indicated by asterisks (**, P ≤ 0.01)

ISSN: 1471-2229