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Journal of Experimental Biology 17,147-152 (1940)
Published by Company of Biologists 1940

A Note on the Biochemistry of Embryonic Determination in Echinoderms

JOSEPH NEEDHAM 1 and DOROTHY M. NEEDHAM 2

1 Marine Biological Laboratories of Salsbury Cove, Mount Desert Island, Maine
2 Wood's Hole Mass., U.S.A.

Echinoderm embryos, cultivated in dl-glyceraldehyde and iodoacetate, at concentrations within the range of maximal inhibition of carbohydrate breakdown as established on other systems, show no sign of exo-gastrulation or marked vegetalization. How far this affects the hypothesis of the Scandinavian school that the animal pole region in the echinoderm embryo is a centre of carbohydrate breakdown, is discussed in the text.

Submitted on January 27, 1940






© The Company of Biologists Ltd 1940