EN
To understand a process as a complex as biological nitrogen fixation investigations are now performed in many different areas: such as genetic improvement of the host plants and microsymbionts, organ differentiation, chemical communication between organisms, etc.Further studies are necessary to understand the regulatory mechanisms and environmental effects. New horizons for nitrogen fixation research include selection, identification and introduction of organisms with novel arragements of genetic information into the environment.The strategy of transferring legume genes involved in providing the nitrogen-fixing capatibility to non leguminous crops still appears to be long way off.