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Structural Features of the Abalone Egg Extracellular Matrix and Its Role in Gamete Interaction During Fertilization by Dr. Nancy M. Mozingo; Victor D. Vacquier; Douglas E. Chandler is a Medicine article available to read on EtoBox.

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## Abstract Abalone eggs are surrounded by a complex extracellular coat that contains three distinct elements: the jelly layer, the vitelline envelope, and the egg surface coat. In this study we used light and electron microscopy to describe these three elements in the red abalone (__Haliotis rufescens__) and ascribe function to each based on their interactions with sperm. The jelly coat is a spongy matrix that lies at the outermost margin of the egg and consists of variably sized fibers. Sperm pass through this layer with their acrosomes intact and then go on to bind to the vitelline envelope. The vitelline envelope is a multilamellar fibrous layer that appears to trigger the acrosome reaction after sperm binding. Next, sperm release lysin from their acrosomal granules, a nonenzymatic protein that dissolves a hole in the vitelline envelope through which the sperm swims. Sperm then contact the egg surface coat, a network of uniformly sized filaments lying directly above the egg plasma membrane. This layer mediates attachment of sperm, via their acrosomal process, to the egg surface. © 1995 Wiley‐Liss, Inc.

Who reads Structural Features of the Abalone Egg Extracellular Matrix and Its Role in Gamete Interaction During Fertilization?

Author

Dr. Nancy M. Mozingo; Victor D. Vacquier; Douglas E. Chandler

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 1040-452X)

Published

1995

Language

EN

Field

Medicine (Life Sciences)