Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2001-1-25
pubmed:abstractText
This study demonstrates that carbohydrates play an essential role in sperm-egg interactions in birds. Sperm-egg interaction was measured in vitro as the ability of spermatozoa to hydrolyse a small hole in the inner perivitelline layer, the equivalent of the mammalian zona pellucida. Preincubation with Triticum vulgaris lectin (WGA) and succinyl-WGA (S-WGA) at 10 microgram ml(-1) resulted in complete inhibition of sperm-egg interaction, whereas at the same concentration a range of other lectins (Canavalia ensiformis (Con A), Arachis hypogea (PNA), Ulex europaeus II (UEA II), Solanum tuberosum (STA), Tetragonolobus purpureas (LTA) and Pisum sativum (PSA)) were unable to inhibit sperm egg interaction significantly, although fluorescein-labelled derivatives of these lectins were found to stain the inner perivitelline layer. Significant inhibition of sperm-egg interaction was achieved by the addition of N-acetyl-D-glucosamine and fucoidin to the assay mixture; however, D-glucose, D-galactose, D-fucose and L-fucose had no significant effect on sperm-egg interaction. Pretreatment of the inner perivitelline layer with N-glycanase significantly reduced sperm-egg interaction, whereas treatment with O-glycanase had no effect. These results demonstrate that N-linked glycans play an essential role in sperm-egg interaction in chickens.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-4251
pubmed:author
pubmed:issnType
Print
pubmed:volume
120
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
397-403
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:11058456-Acetylglucosamine, pubmed-meshheading:11058456-Amidohydrolases, pubmed-meshheading:11058456-Animals, pubmed-meshheading:11058456-Cells, Cultured, pubmed-meshheading:11058456-Chickens, pubmed-meshheading:11058456-Culture Techniques, pubmed-meshheading:11058456-Female, pubmed-meshheading:11058456-Hexosaminidases, pubmed-meshheading:11058456-Hydrolysis, pubmed-meshheading:11058456-Lectins, pubmed-meshheading:11058456-Male, pubmed-meshheading:11058456-Monosaccharides, pubmed-meshheading:11058456-Peptide-N4-(N-acetyl-beta-glucosaminyl) Asparagine Amidase, pubmed-meshheading:11058456-Polysaccharides, pubmed-meshheading:11058456-Protein Binding, pubmed-meshheading:11058456-Sperm-Ovum Interactions, pubmed-meshheading:11058456-Vitelline Membrane, pubmed-meshheading:11058456-Wheat Germ Agglutinins
pubmed:year
2000
pubmed:articleTitle
Identification of perivitelline N-linked glycans as mediators of sperm-egg interaction in chickens.
pubmed:affiliation
Avian Reproduction Group, School of Science and Engineering, University of Abertay Dundee, Bell Street, Dundee DD1 1HG, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't