ATP结合部位是固氮酶的调节部位；乙炔还原活性部位是固氮酶的催化部位；

ATP binding sites are regulatory sites in the nitrogenase and the acetylene reduction active sites are catalytic sites in the nitrogenase.

钼是豆科作物固氮酶复合体组成的必需元素。

Molybdenum is an essential element consisting of nitrogenase enzyme complex.

固氮酶单、双钼铁钼辅基的制备与N-甲基甲酰胺碱度有关。

Preparation of FeMo cofactors containing single and double Mo was related with basicity of N-methylformamide.

铬还使单株固氮酶活性(乙炔还原法测定)显著降低，用高浓度铬处理者克瘤固氮活性也显著降低。

Chromium treatment significantly decreased nodule Numbers, nodule fresh weight, leghemoglobin content and nitrogenase (acetylene reduction) activity per plant or per gram of nodules.