Sulfur assimilation

Sulfate reduction and assimilation in plants (APS, adenosine 5'-phosphosulfate; Fdred, Fdox, reduced and oxidized ferredoxin; RSH, RSSR, reduced and oxidized glutathione; SQDG, sulfoquinovosyl diacylglycerol)

Sulfur assimilation is the process by which living organisms incorporate sulfur into their biological molecules.[1] In plants, sulfate is absorbed by the roots and then be transported to the chloroplasts by the transipration stream where the sulfur are reduced to sulfide with the help of a series of enzymatic reactions. Furthermore, the reduced sulfur is incorporated into cysteine,[2] an amino acid that is a precursor to many other sulfur-containing compounds. In animals, sulfur assimilation occurs primarily through the diet, as animals cannot produce sulfur-containing compounds directly. Sulfur is incorporated into amino acids such as cysteine and methionine, which are used to build proteins and other important molecules.[2]

  1. ^ Karvansara, Parisa Rahimzadeh; Komenda, Josef; Kopriva, Stanislav (2024), "Sulfur metabolism in cyanobacteria", Cyanobacteria, Elsevier, pp. 117–157, doi:10.1016/b978-0-443-13231-5.00018-0, ISBN 978-0-443-13231-5, retrieved 2024-04-15
  2. ^ a b Vallon, Olivier; Spalding, Martin H. (2009), "Amino Acid Metabolism", The Chlamydomonas Sourcebook, Elsevier, pp. 115–158, doi:10.1016/b978-0-12-370873-1.00012-5, ISBN 978-0-12-370873-1, retrieved 2024-04-15

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