Analysis of Nature and Action of Organizer | Embryology

In this article we will discuss about the analysis of nature and action of organizer in amphibian eggs. Grey crescent—its Role in Develop­ment: Wilhelm Roux (1888) first described the grey crescent in amphibian egg. The ex­periments of Rund and Spemann have em­phasised the vital role of grey crescent in amphibian development (see Fig. 5.14). If the egg is surgically divided [...]