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Release of respiratory control by 2,4-dinitrophenol in different stages of sea urchin development.
TLDR
It is postulated that the partial release of respiratory control results from an increased formation of phosphate acceptors due to the utilization of energy-rich phosphate for syntheses of embryonic components. Expand
The role of mucopolysaccharides in the fertilization of the sea urchin egg.
TLDR
A survey of a number of facts point to the conclusion that the cortical layer of the unfertilized sea urchin egg contains acid mucopolysaccharides which act as enzyme inhibitors. Expand
A graded response to electrical current in the cortex of the sea urchin egg.
TLDR
E eggs contained in glass capillaries were placed on a slide so that the two capillary ends were bathed in pools of sea water and the middle section of the capillary in immersion oil, showing that the effect of electric current was a direct one upon the individual cortical granules rather than through initiation of the fertilization impulse. Expand
The fertilization and development of the sea urchin egg, Arbacia lixula, under the influence of fractions of egg homogenate.
TLDR
The results suggest that a release of substances from the microscopic granules in the egg may play a role for the balance between ventral and dorsal tendencies in the early sea urchin development. Expand
The gelating effect of lower doses of trypsin on sea urchin eggs and its removal by exposure to glutathione.
TLDR
The results indicate that the trypsin pretreatment promotes the activation of proteolytic enzymes present in the eggs, including glutathione, which has a gelating or polymerizing action on certain cytoplasmic components. Expand
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