. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 176 Reactions used to model planktonic microbitil community. J. J. VALLINO Table 1 Reaction Stoichiometry C-fixation NH4+ uptake NO," uptake Nitrification N2 fixation Photosynthesis Respiration Protein Chlorophyll Lipids Glycogen DNA/RNA 6 CO, + 24 H+ + 24 e~ o C(,H,2O(1 + 6 H;O NH/ + C6H12O6 + SO4-~ + e~ AA + H2O NO,- + 10 H+ + C6H12O6 + SO42- + e~ —• AA + H,O NH4+ + 3 H:O -» NO,- + 10 H+ + 8 e~ '/2 N2 + 4 FT + C6HI2O6 + SO4-~ + e~ -» AA + H2O 2 H,O -> O, + 4
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 176 Reactions used to model planktonic microbitil community. J. J. VALLINO Table 1 Reaction Stoichiometry C-fixation NH4+ uptake NO," uptake Nitrification N2 fixation Photosynthesis Respiration Protein Chlorophyll Lipids Glycogen DNA/RNA 6 CO, + 24 H+ + 24 e~ o C(,H,2O(1 + 6 H;O NH/ + C6H12O6 + SO4-~ + e~ AA + H2O NO,- + 10 H+ + C6H12O6 + SO42- + e~ —• AA + H,O NH4+ + 3 H:O -» NO,- + 10 H+ + 8 e~ '/2 N2 + 4 FT + C6HI2O6 + SO4-~ + e~ -» AA + H2O 2 H,O -> O, + 4 H+ + 4 e" O2 + 4 H+ + 4 e" — 2 H2O AA + (Protein)n O (Protein)n + 1 + H2O 4 AA + C6HI2O6 + Mg-+ + H+ + e" «• Chi + H,O + SO4: 8 C6HnO6 + P043" + 92 FT + 89 e~ O C48Hl)(,O6P + 46 H,O C6H,20~6 + (C6H,,,Os)n»(ChH,,,05)n+, + H20 4 AA + 2 PO4-'- O DNA + CnH12O6 + SO4:" + H2O + H+ + Abbreviations: AA. amino acids (C, ,H7,0, 7NS,,U,4""'+); Chi, chlorophyll (C,,H72O5N4Mg): Protein (C, 5H5 |O,I7NS,,,,,4""'+): DNA (C96H]4OXN4P2). Reactions are either reversible «=» or irreversible (—»). decay of redox potential via a distributed metabolism that forms the cornerstone of our approach. We focus on micro- bial systems because these systems exhibit the greatest degree of metabolic capacity, are responsible for the major- ity of biogeochemistry on earth, display fast dynamics that allows for practical experiments, and are less susceptible to loss of diversity. Thermodynamically Constrained Metabolic Biogeochemical Model A traditional reductionist biogeochemical model would include differential equations for growth of each microbial functional group, equations for Monod-type growth kinet- ics, and numerous conditional statements to direct the use of. Figure 1. Conceptualization of the metabolic biogeochemistry model. Half reactions lead to production of protein (and other building-block c
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
