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http://hdl.handle.net/11375/28208
Title: | Role of Betaine in Transmethylation Reactions in the Barley Plant |
Other Titles: | Origin of the Methylenedioxy Groups of the Alkaloid Protopine |
Authors: | Sribney, Michael |
Advisor: | Kirkwood, S |
Department: | Chemistry |
Keywords: | Methylenedioxy Groups, Betaine, Transmethylation, Barley, Alkaloid Protopine |
Publication Date: | Oct-1953 |
Abstract: | The role of the labile methyl groups of betaine in the transmethylation reactions in the barley plants was investigated using carbon-14 methyl labelled betaine. The N-methyl groups of N-methyl tyramine, hordenine and choline were found to arise from betaine. Betaine was also administered to castor bean seedlings and the alkaloid ricinine Isolated. It was found that Its N- and 0- methyl groups did not arise from betaine methyl. The origin of the methylenedioxy and N-methyl groups of the alkaloid protopine was also investigated by the tracer technique. Carbon-14 methyl labelled L- methionine, carbon-14 methyl labelled choline and carbon- 14 labelled sodium formate were fed to Dicentra species and the extent and position of labelling of the protopine molecule determined by degradation |
URI: | http://hdl.handle.net/11375/28208 |
Appears in Collections: | Digitized Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Sribney_Michael_1953Oct_masters.pdf | 2.96 MB | Adobe PDF | View/Open |
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