THE EFFECT OF ULTRA-VIOLET LIGHT UPON EARLY DEVELOPMENT IN EGGS OF URECHIS CAUPO
Open Access
- 1 June 1937
- journal article
- research article
- Published by University of Chicago Press in The Biological Bulletin
- Vol. 72 (3) , 377-383
- https://doi.org/10.2307/1537696
Abstract
1. When unfertilized eggs of Urechis caupo are exposed to ultraviolet light for different lengths of time, then fertilized, polar body extrusion and first cleavage are suppressed. In addition to the suppression of these stages radiation causes an increase in the reaction rate of the egg which bears a direct relation to the length of exposure. 2. Possible factors in the suppression of these stages in maturation and first cleavage are the alteration or probable injury of the egg cortex and accompanying changes in its chemical and physical properties, and viscosity changes in the egg endoplasm which inhibit internal phenomena.This publication has 1 reference indexed in Scilit:
- THE ORIGIN AND NATURE OF THE FERTILIZATION MEMBRANE IN VARIOUS MARINE OVAThe Biological Bulletin, 1935