resact

We have examined the expression of heat shock or stress genes in fish, echinoderm, amphibian, and mammalian embryonic systems. In… Expand

Resact, a peptide of known sequence isolated from the jelly layer of Arbacia punctulata eggs, is a potent chemoattractant for A… Expand

Measurements and observations of five early events of fertilization, singly and in pairs, from single sea urchin eggs have… Expand

The urchin Lytechinus variegatus was cultured through metamorphosis, from eggs and sperm collected from mature forms, in… Expand

Prior to gastrulation, the microtubules in the presumptive primary mesenchyme cells appear to diverge from points (satellites) in… Expand

In an attempt to understand the mechanism of contraction of the filopodia of the secondary mesenchyme cells and thus secondary… Expand

To experimentally test the suggestion made in the preceding paper that the microtubules are involved in cell shape development… Expand

The effects of Colcemid, the deacetyl-N-methyl derivative of colchicine, on the eggs of Arbacia punctulata were investigated… Expand

 

This investigation revealed the presence of two different types of leucocytes in Arbacia: trephocytes and phagocytes. An outline… Expand