The Effects of Temperature on the Durations of the Different Stages of Cell Division in the Root-tip

Publisher Website
Google Scholar
Abstract
A new technique for determining the durations of the different phases of division is described. It is shown that at 15° C. the mean durations of the several phases in the root-tip of the pea are as follows: interphase 23 hours; prophase 2 hours; metaphase 25 minutes; anaphase 5 minutes; telophase 22 minutes. The effects of different temperatures have been determined, and it is shown that all stages are accelerated by an increase in temperature from 15° to 25° C, the ratios of the durations at the two temperatures being about 2-o or slightly less. It is suggested that since interphase is the longest stage of the division cycle, in terms of growth effects on this stage are the most significant.

This publication has 0 references indexed in Scilit: