The nitrogenase activity of the detached stem nodule was measured under different pO2 and the highest was obtained at 60%.
测定不同pO2下离体茎瘤固氮活性以pO2为60%最高;
The results of the nitrogenase activity of water deprived stem nodule under different pO2 and its micrographic observation supported that the oxygen diffusion resistance increased in response to water stress.
测定水分剥夺的茎瘤在不同pO2下的固氮活性和茎瘤组织切片的显微观察,支持水分胁迫可使O2扩散阻力增大这一观点。
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