The Mitotic Cycle time of Root Meristem Cells ofHelianthus Annuus

Open Access

1 January 1969

journal article
research article
Published by Firenze University Press in Caryologia

Vol. 22 (4) , 331-337
https://doi.org/10.1080/00087114.1969.10796352

Abstract

The duration of the mitotic cycle of Helianthus annum root meristem cells has been studied with ³H-thymidine pulse labelling (autoradiographic) method. The total cycle estimate was 9 hours and 45 minutes; that of the component phases was as follows: G₁ = 36′, S = 5h 30′, G² = 2h 20′, Mitosis = 49′. The minimum mitotic cycle estimate obtained by means of colchicine was in agreement with the ³HTdR results: at about 9 hours. 1% of tetraploid dividing cells were scored.

Keywords

This publication has 13 references indexed in Scilit:

Interphase sensitivity to the chromosome-breaking effect of 2′-deoxyadenosine: An autoradiographic study
Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, 1967
THE DURATION OF THE G₁ PHASE OF THE MITOTIC CYCLE AND ITS RELATION TO RADIOSENSITIVITY
New Phytologist, 1965
Growth inhibition, mitotic cycle time and cell number in chronically irradiated root meristems of Pisum
Radiation Botany, 1963
A RELATIONSHIP BETWEEN DNA CONTENT, NUCLEAR VOLUME, AND MINIMUM MITOTIC CYCLE TIME
Proceedings of the National Academy of Sciences, 1963
TIMING OF DNA SYNTHESIS IN THE MITOTIC CYCLE IN VITRO
The Journal of cell biology, 1961
Duration of the Nuclear Cycle in Tradescantia paludosa Root Tips as Measured with H 3 -Thymidine
American Journal of Botany, 1960
Studies on the control of mitotic activity
Chromosoma, 1960
Cell population kinetics in the intestinal epithelium of the mouse
Experimental Cell Research, 1959
A New « 5 Minutes—Fixation » in Chromosome Analysis
Caryologia, 1957
Cytologische Untersuchungen an Tumoren
Zeitschrift für Krebsforschung und Klinische Onkologie, 1953