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Nitrogen Cycling nit - Coggle Diagram

- - - - Ammonification
        
        Ammonium oxidation-Nitrification
        
        Nitrate reduction
        
        3 Pathways:
        
        Assimilatary nitrate reduction (nitrate
        immobilization)
        
        Dissimilatory Nitrate Reduction to Ammonium
        (DNRA)
        
        Denitrification
        
        Converts nitrate (NO3-) to gaseous nitrogen and nitrous oxide (N2O)
        
        Oxidizes ammonium (NH4+) to nitrate (NO3-)
        
        By Nitrifiers
        
        Decomposition process: converts
        organic N into NH3
        
        Neutral environment: ammonium ('+' charged) adheres to negatively charged particles.
        
        Alkaline environments: gaseous
        ammonia enter atm.
        
        Examples:
        
        Example of ammonification 1
        
        Example of ammonification 2:
      - Synthesis of Glutamate (1)
        
        Requires : glutamate dehydrogenase
      - Synthesis of Glutamate (2) and
        Glutamine
        
        Requires : glutamine synthetase (GS) and
        glutamate synthase
    - - alone or in a symbiotic relationship with some plants and animals
    - - Symbiotic N fixation
        
        Association of certain m/o with roots of higher
        plants
        
        Manipulation of symbiotic relationship in
        agronomic practice
        
        N-fixing associations between
        rhizobia and legumes
      - Non-symbiotic fixation
        
        Mutualistic relationship of m/os and plant
        
        Free-living m/os capable of BNF
      - Non-biological Nitrogen Fixation
        
        Haber-Bosch Process
        
        Haber Ammonia Process or Synthetic Ammonia
        Process
        
        Directly synthesize ammonia from H and N