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Studies of the Biochemical Background to Differences in Glucosinolate Content in Brassica napus L. III. Further Studies to Localize Metabolic Blocks.
- Source :
-
Physiologia Plantarum . 1973, Vol. 29 Issue 1, p28-32. 5p. - Publication Year :
- 1973
-
Abstract
- To localize the metabolic block(s) in the biosynthesis of glucosinolates in the Brassica napus L. cv. Bronowski, 5-methylthiopentanal oxime-1-14C was synthesized and fed to this cultivar and cv. Regina II, which has average levels of glucosinolates. The aldoxime was as efficient as a precursor of 3-butenylglucosinolate in both cultivars, but less efficient as a precursor of 2-hydroxy-3-butenylglucosinolate in Bronowski. These results suggest that there is a block in the biosynthesis of 3-butenylglucosinolate in Bronowski that is situated before the synthesis of the intermediate 5-methylthiopentanal oxime, as well as a block in the hydroxylation step. The silique walls of Bronowski contained increased amounts of total sulphur and inorganic sulphate. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GLUCOSINOLATES
*RUTABAGA
*BIOSYNTHESIS
*SULFUR
*CARBOHYDRATES
*ORGANIC synthesis
Subjects
Details
- Language :
- English
- ISSN :
- 00319317
- Volume :
- 29
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Physiologia Plantarum
- Publication Type :
- Academic Journal
- Accession number :
- 13296824
- Full Text :
- https://doi.org/10.1111/j.1399-3054.1973.tb04805.x