AbstractsChemistry

Studies on the metabolism of normal and tumor tissues of beet roots.

by A. C. Neish




Institution: McGill University
Department: Department of Chemistry.
Degree: PhD
Year: 1942
Keywords: Chemistry.
Record ID: 1517269
Full text PDF: http://digitool.library.mcgill.ca/thesisfile128329.pdf


Abstract

A. Resulta of analyses of tumors produced on beets by Phytomonas turnefaciens confirm the values of previous workers and show that the tumors utilize sucrose for the synthesis of protoplasm and cell wall material rather than for storage as is the case of the normal tissue. B. The first known studies on the metabolism of living slices of plant tumors have been made. c. Comparison of the metabolism of the tumor anè normal tissue (of the beet root) shows striking differences in the mode and rate of sugar metabolism. Special attention has been paid to the Pasteur Effect which is found ta be markedly different in the two tissues. D. A study has been made on the effect of sodium bisulphite on the respiration and fermentation of beet tissue slices. It is found to completely inhibit respiration, partially inhibit fermentation, and to cause acetaldehyde and glyceraldehyde to aocumulate.