| Popis: |
Sulfate assimilation is a pathway used by prokaryotes,fungi and photosynthetic organisms to convert inorganic sulfate to sulfide,which is further incorporated into carbon skeletons of amino acids to form cysteine or homocysteine.Sulfate,the major form of inorganic sulfur utilized by plants,is absorbed and transported by specific sulfate transporters into plastids,especially chloroplasts,where it is reduced and assimilated into cysteine.The metabolic pathway is highly regulated in a demand-driven manner.However,this regulation is not necessarily identical in various biological groups.The molecular mechanisms of sulfate uptake and metabolism regulation in higher plants were reviewed here,the issues and potential research strategies on the molecular mechanisms of sulfate metabolism regulation were preliminarily discussed as well. |
