In this article we will discuss about the metabolism of nitrogen fixation. Nitrogenase enzyme, which is chiefly associated with fixing of nitrogen, is inactivated by oxygen. This inactivation may be reversible or irreversible, the latter clearly being a more serious problem. How it arose is an open question? One suggestion is that oxygen sensitivity results from evolution of nitrogenase in [...]
In this article we will discuss about the nitrogen fixation mechanisms in microorganisms. 1. Nitrogenase Types, Structure and Function: The biological conversion of atmospheric nitrogen to ammonia taken place with the help of an enzyme called Nitrogenase. This enzyme is anaerobic in nature and when it comes in contact with oxygen or air, it becomes inert. The proteinaceous enzyme is [...]
The following points highlight the top three processes of nitrogen fixation in plants. The processes are: 1. Atmospheric Nitrogen Fixation 2. Biological Nitrogen Fixation 3. Industrial Nitrogen Fixation. Process # 1. Atmospheric Nitrogen Fixation: The enormous energy of lightning breaks nitrogen molecules and enables them to combine with the oxygen in the air forming nitrogen oxides. These dissolve in water [...]