fertilization membrane

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Noun 1. fertilization membrane - the membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoon

tissue layer, membrane - a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants

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Fertilization was detected between 5 and 10 min after mixing the gametes, with the appearance of the fertilization membrane separating from the yolk mass (Table 1).

EMBRYONIC AND LARVAL DEVELOPMENT OF THE SUBTROPICAL GEODUCK CLAM PANOPEA GLOBOSA (BIVALVIA: HIATELLIDAE)

Fertilization was recognized by the appearance of a thick fertilization membrane (Fig.

Embrionary and larval development of the marine clam Tivela mactroides (Bivalvia: Veneridae) in Zulia State, Venezuela

These cells did not form the compact cap and were instead suspended in the perivitelline fluid, moving inside the fertilization membrane with rotation of the blastula.

An Invertebrate Model of the Developmental Neurotoxicity of Insecticides: Effects of Chlorpyrifos and Dieldrin in Sea Urchin Embryos and Larvae

Slides were soaked overnight in lysis buffer (2.5 mol/1 NaCl; 0.01 mol/1 EDTA; 10% Triton X-100; 1% DMSO), whereas slides containing embryonic genetic material were soaked for 2 wk to facilitate proper lysis of the fertilization membrane. Slides were rinsed in deionized water and soaked in electrophoresis buffer (0.6 mol/1 NaOH; 0.05 mol/1 EDTA) for 10 min to facilitate unwinding of DNA, whereafter electrophoresis was performed at 10 V and 300 mA for 10 min.

Short postspawning recovery time affects DNA integrity and fertilization success of south African abalone (Haliotis midae) oocytes

Release of ovoperoxidase from sea urchin eggs hardens fertilization membrane with tyrosine crosslinks.

Critical role of cortical vesicles in dissecting regulated exocytosis: overview of insights into fundamental molecular mechanisms

Fertilization rate was calculated as the number of fertilized eggs (presence of fertilization membrane) per 100 eggs observed in a microscopic concave glass (expressed as a percentage).

Stocking density and captive sea urchin Paracentrotus lividus (Lamarck, 1816) gamete production and fertilization

The resulting embryos were passed through a Nytex filter (120 [micro]m) to physically remove the fertilization membrane and to dissociate the blastomeres.

Methods for karyotyping and for localization of developmentaly relevant genes on the chromosomes of the purple sea urchin, Strongylocentrotus purpuratus