STUDIES ON THE EFFECT OF CARBON DIOXIDE ON X-RAY INDUCED CHROMOSOME ABERRATIONS IN TRADESCANTIA, I. DURATION OF THE PRETREATMENT EFFECT
- 1 November 1960
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 46 (11), 1501-1506
- https://doi.org/10.1073/pnas.46.11.1501
Abstract
Thepretreatment of Tradescantia inflorescences with one atmosphere of CO2 plus one of air is effective in increasing the number of chromosome aberrations induced by X-ray by about 1.6 times. Separating the CO2 pretreatment and radiation by increasing periods in air has shown that the CO2 effect persists for about 20 minutes. After this period the aberration frequency returns to control levels. Following the CO2 treatment the oxygen uptake rate of the tissues is greatly increased. There is reason to believe that changes in nucleoplasmic viscosity and oxidative metabolism may alter the frequency of chromosome aberrations induced by radiation.This publication has 9 references indexed in Scilit:
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