Accession Number:
AD0436247
Title:
BIOSYNTHESIS OF MUSTARD OIL GLUCOSIDES. II. THE ADMINISTRATION OF SULPHUR-35 COMPOUNDS TO HORSERADISH LEAVES,
Descriptive Note:
Corporate Author:
NATIONAL RESEARCH COUNCIL OF CANADA SASKATOON (SASKATCHEWAN) PRAIRIE REGIONAL LAB
Personal Author(s):
Report Date:
1963-07-08
Pagination or Media Count:
8.0
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