Sulfate reduction in Catharanthus roseus (L.)

  title={Sulfate reduction in Catharanthus roseus (L.)},
  author={Henning Urlaub and G. Jankowski},
Cell homogenates from Catharanthus roseus (L.) G. Don. grown S-autotrophically on sulfate in the dark are capable of reducing adenylysulfate (APS) to cysteine. This reduction required a particulate protein fraction from the cell extract and reduced ferredoxin as the electron donor. The protein fraction (MW 700,000±50,000) was found to contain Fd:NADP+ reductase, glutathione reductase and an unspecific dithiol reductase, and APS-sulfotransferase and thiosulfonate reductase activity. Resolution… CONTINUE READING

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