The nra was not directly correlated with nitrogenase activity .
硝酸还原酶活性和根瘤固氮活性之间没有直接关系。
Soil drought reduced moisture content and nitrogenase activity of nodules .
土壤干旱降低田菁根瘤的含水量和固氮活性。
Effects of molybdenum on nitrogenase activity of nitrogen-fixing bacteria in sugarcane .
钼对甘蔗体内固氮菌的固氮酶活性的影响。
Table 2 growth and nitrogenase activity of transformation colonies in a medium without .
表2转化藻落在羌氮培养基及空气中的生长和固氮蔺活力。
Because no photosynthesis is taking place , the bacterium uses up its cellular oxygen so that the nitrogenase enzyme is effectively in a largely oxygen-free environment .
