•  
  •  
 

Document Type

Research

Abstract

The effects of M.b. and 2-4 D.N.P. on the oxygen uptake of mitotically active and blocked grasshopper embryos have been worked out over wide concentration ranges. For both reagents an increase in stimulating effects occurs with increasing concentrations up to a maximum. For M.b. this maximum stimulation continues over a very wide range of concentrations and little injury for exposures of 1 to 2 hours results. With 2-4 D.N.P. rather marked toxic effects occur after the maximum stimulating doses are increased. The relative efficiency of the two reagents is such that 2-4 D.N.P. exerts greater stimulating effects than M.b. at similar concentrations. No evidence has been obtained to indicate any additive effects of the reagents on the oxygen uptake when applied to the cell. Once maximum stimulation has been produced by either compound further additions of stimulating doses of either reagent do not change the result.

Publication Date

1949

Journal Title

Proceedings of the Iowa Academy of Science

Volume

56

Issue

1

First Page

311

Last Page

321

Copyright

© Copyright 1949 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

Share

COinS
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.