Accession Number : AD0436247


Title :   BIOSYNTHESIS OF MUSTARD OIL GLUCOSIDES. II. THE ADMINISTRATION OF SULPHUR-35 COMPOUNDS TO HORSERADISH LEAVES,


Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA SASKATOON (SASKATCHEWAN) PRAIRIE REGIONAL LAB


Personal Author(s) : Wetter,L R


Report Date : 08 Jul 1963


Pagination or Media Count : 8


Abstract : Sulphur-35 from labelled sulphate, sulphide, thiosulphate and methionine was incorporated into sinigrin isolated from mature horse-radish leaves. Sulphate-S was more readily incorporated than was that from sulphide, thiosulphate or methionine. When inorganic sulphur-35 was supplied, about 80% of the radioactivity of sinigrin was in the bisulphate moiety and 20 per cent in the isothiocyanate. Hoever, with methionine-35S as the tracer the isothiocyanate portion contained 90% of the radioactivity. The data suggest that methionine sulphur is incorporated into sinigrin by a different pathway than are the various forms of inorganic sulphur. (Author)


Descriptors :   *GLYCOSIDES , SULFATES , SULFIDES , THIOSULFATES , METHIONINE , RADIOACTIVITY , SULFUR


Distribution Statement : APPROVED FOR PUBLIC RELEASE