zona pellucida


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Related to zona pellucida: blastocyst, Granulosa cells

zona

 [zo´nah] (L.)
1. zone.
2. herpes zoster.
zona fascicula´ta the thick middle layer of the adrenal gland.
zona glomerulo´sa the outermost layer of the adrenal cortex.
zona ophthal´mica herpetic infection of the cornea.
zona pellu´cida
1. the transparent, noncellular, secreted layer surrounding an ovum.
Zona pellucida. From Applegate, 2000.
2. area pellucida.
zona radia´ta a zona pellucida exhibiting conspicuous radial striations.
zona reticula´ris the innermost layer of the adrenal cortex.
zona stria´ta a zona pellucida exhibiting conspicuous striations.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

zo·na pel·lu·ci·da

an extracellular coat, rich in glycoprotein, surrounding the oocyte; it contains microvilli of the oocyte and cellular processes of follicular cells and appears homogeneous and translucent under the light microscope.
Synonym(s): pellucid zone
Farlex Partner Medical Dictionary © Farlex 2012

zona pellucida

(zō′nə pə-lo͞o′sĭ-də, pĕl-yo͞o′-)
n.
A thick transparent extracellular coat that surrounds the mammalian ovum and is composed of glycoproteins. Spermatozoa bind to the zona pellucida during fertilization.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

zona pellucida

The glycoprotein-rich membrane surrounding the plasma membrane of an oocyte (egg), which binds spermatozoa and is required to initiate the acrosome reaction.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

zo·na pel·lu·ci·da

(zō'nă pel-lū'sid-ă)
An extracellular coat surrounding the oocyte; it consists of a layer of microvilli of the oocyte, cellular processes of follicular cells, and an intervening substance rich in glycoprotein; it appears homogeneous and translucent under the light microscope.
Synonym(s): pellucid zone.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

zona pellucida

a mucoprotein membrane that surrounds the egg of mammals. It is secreted by the ovarian follicle cells.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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References in periodicals archive ?
In this study, we showed that zona pellucida of vitrified oocytes was electron dense and darker compared to control and vIVM groups.
Assessment of Mouse Oocytes Ultrastructure Following Vitrification Before and After in vitro Maturation/Evaluacion de la Ultraestructura de los Ovocitos de Raton Despues de la Vitrificacion Antes y Despues de la Maduracion in vitro
Immunogenicity and contraceptive potential of a human zona pellucida 3 peptide vaccine.
Molecular adjuvant interleukin-33 enhances the antifertility effect of Lagurus lagurus zona pellucida 3 DNA vaccine administered by the mucosal route
Wassarman, "Zona pellucida domain proteins," Annual Review of Biochemistry, vol.
CUZD1 and anti-CUZD1 antibodies as markers of cancer and inflammatory bowel diseases
Only a few sperm reach the zona pellucida. When a sperm binds, a reaction releases substances allowing the sperm to break through.
As told by the egg: the story of fertilization, from the female point of view
2008), and vitelline envelope proteins containing a zona pellucida domain, which are prominent components of egg coats of vertebrates (Swanson et al.
Identification and expression analysis of sex-specific expression markers of Thai abalone Haliotis asinina, Linneaus, 1758
Biochemical and functional characterization of the human zona pellucida. Reprod BioMed Online 2003; 7 : 641-8.
Binding characteristics of sperm with recombinant human zona pellucida glycoprotein-3 coated beads
At this point of development, thin projections establish between both types of follicular cells and ooplasm, crossing the zona pellucida (Figure 6).
The ovary of the bignose fanskate Sympterygia acuta Garman, 1877 (Chondrichthyes, Rajidae) in the Bahia Blanca estuary, Argentina: morphology and reproductive features/O ovario da bignose fanskate Sympterygia acuta Garman, 1877 (Chondrichthyes, Rajidae) no estuario de Bahia Blanca, Argentina: morfologia e caracteristicas reprodutivas
As the oocyte grows it becomes enveloped by the zona pellucida, a translucent, jelly-like membrane consisting of mucopolysaccharides and proteins.
Chapter 11: Dynamics of ovarian function: folliculogenesis, oogenesis, and ovulation
Localization of tyrosine phosphorylated proteins in human sperm and relation to capacitation and zona pellucida binding.
Expresion y distribucion del receptor de complemento gC1qR en los espermatozoides bovinos
Characterization of equine zona pellucida glycoproteins by polyacrylamide gel electrophoresis and immunological techniques.
Induccion de la reaccion acrosomica en espermatozoides de raton mediante solubilizados de zona pelucida de alpaca (Lama pacos L.)
Partial zona dissection of human oocytes when failure of zona pellucida penetration is anticipated.
A brief historical overview of assisted reproduction
AF130354; http://www.ncbi.nih.gov)] and zona pellucida 2 (zp2, GenBank accession no.
Gene expression changes related to endocrine function and decline in reproduction in fathead minnow (Pimephales promelas) after dietary methylmercury exposure

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