NITROGEN CYCLE

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  • NITROGEN CYCLE
    • BACTERIA
      • Nitrosomonas
        • Ammonia to Nitrites
      • Decomposers
        • part of ammonification of Nitrogen to Ammonia
      • Nitrobacter
        • Nitrites to Nitrates
      • Cyanobacteria
        • forms a mutualistic relationship with water plants
      • Pseudomonas
        • Nitrates to Nitrogen
      • Rhizobium
        • forms a mutualistic relationship with legumes (peas)
    • CYCLE
      • 1. Nitrogen Fixation (Nitrogen to Ammonia)
        • anaerobic conditions
        • needs ATP
        • Rhizobium & Cyanobacteria
        • makes proteins & amino acids
      • 2. Decomposition of amino acids (Ammonia to Ammonium ion)
        • aerobic conditions
        • proteins are hydrolysed
        • not work in low oxygen levels & pH
        • decomposers are part of ammonification
      • 3. Nitrification (Ammonium ion to Nitrites)
        • aerobic conditions
        • needs ATP
        • nitrosomonas
        • not work in low oxygen levels (water-logged)
      • 4. Nitrification (Nitrites to Nitrates)
        • aerobic conditions
        • needs ATP
        • nitrobacter
        • not work in low oxygen levels (water-logged)
      • 5. Denitrification (Nitrates to Nitrogen)
        • anaerobic conditions
        • pseudomonas
        • works in low oxygenated enivro. (water-logged)
    • Nitrogen Cycle

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