Antagonistic activities of endophytic bacteria isolated from rice roots against the fungus Magnaporthe oryzae, a causal of rice blast disease

Egyptian Journal of Biological Pest Control

Table 5 Characterization of in vitro plant growth-promoting traits of endophytic bacteria isolated from rice root

Bacterial strain	IAA (µg ml⁻¹)	NH₃ (μg/ml)	ACC deaminase	Siderophore	Phosphate solubilizing index
ND01	31.22 ± 1.01	42.34 ± 0.22	–	+	2.34
ND02	13.77 ± 0.85	82.45 ± 0.25	6.32 ± 0.3	+	–
ND03	34.73 ± 0.81	–	–	–	1.56
ND04	21.29 ± 1.31	80.32 ± 1.19	7.65 ± 0.82	+	–
ND05	32.25 ± 1.34	105.82 ± 4.25	–	–	2.25
ND06	43.71 ± 1.37	84.66 ± 0.45	16.15 ± 0.86	+	2.87
ND07	37.43 ± 0.87	73.52 ± 0.67	–	+	1.31
ND08	33.73 ± 1.02	–	13.32 ± 0.54	+	–
ND09	63.78 ± 1.11	112.34 ± 1.23	–	+	1.78
ND10	89.69 ± 1.61	98.87 ± 0.56	19.58 ± 0.34	+	2.67
ND11	51.67 ± 1.57	32.16 ± 1.25	12.47 ± 0.86	–	–
ND12	25.19 ± 0.96	–	–	–	2.34
ND13	13.28 ± 1.36	102.77 ± 0.63	–	+	1.46
ND14	–	17.83 ± 0.47	–	–	–

+ Presence of trait; − absence of trait; The data represent the mean ± standard error (SE) based on three replicates. The ACC deaminase activity was measured spectrophotometrically at 590 nm and expressed as µmol mg⁻¹ protein h⁻¹