Table 5.

Nitrogenase activity of Oryza sativa cv. Baldo plants inoculated with the selected N-fixing endophytes.

Strain	Nitrogenase activitya (nmol ethylene plant−1 min−1)
BA3	0.40 ± 0.007
BA11	0.76 ± 0.14
BB27	0.48 ± 0.05
BB35	0.14 ± 0.01
BB39	0.23 ± 0.05
PA5	0.07 ± 0.01
PA6	0.30 ± 0.12
PA12	0.27 ± 0.06
PA13	0.26 ± 0.06
PA15	0.39 ± 0.05
PA20A	0.45 ± 0.09
PA20B	1.18 ± 0.33
PA21	0.30 ± 0.13
PA26	0.17 ± 0.07
PA29	0.39 ± 0.09
PA35	0.31 ± 0.09
PA40	0.57 ± 0.23
PB8	0.53 ± 0.19
PB24	0.60 ± 0.10
PC19	0.20 ± 0.04