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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE