Photosynthetic Sulphate Reduction
نویسندگان
چکیده
Plants assimilate inorganic sulphate for the bio synthesis of sulphur containing compounds. The enzymes required for reduction are found pre dominantly in the plastids which provide the necessary energy and the reductants. Sulphate re duction like nitrate or carbon dioxide assimilation is endergonic; for comparison, N 0 3 reduction to ammonia requires +347 kJ mol1 and C 0 2 re duction +478 kJ mol1 (Thauer et al., 1977). About twice as much energy is necessary to assimilate sulphate under aerobic conditions:
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