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Unformatted text preview: Temperature, pH, Salinity, O 2 concentration, radiation, Microbial Guilds Link The Nitrogen Cycle to C, H and O Cycles Microbial Guilds Link The Nitrogen Cycle to C, H O 2 H+ Organic C CO 2 H 2 CO 2 H 2 O N2 fixers Azotobacter spp. Cyanobacteria Clostridium spp. , Purple and green Photosynthetic Bacteria Methanogens Symbiotic N 2 fixers (plant symbionts): Rhizobium spp., Frankia spp. Denitrifiers (anaerobic respiration) e.g. Bacillus, Pseudomonas spp. Nitrifiers e.g. Nitrobacter spp. and Nitrosomonas spp Ammonifiers: Many different heterotrophs carry out ammonification...
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This note was uploaded on 02/13/2008 for the course BIO 2900 taught by Professor Ghiorse during the Fall '07 term at Cornell University (Engineering School).
- Fall '07