Linked Life Data

18088944

Source:http://linkedlifedata.com/resource/pubmed/id/18088944

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2007-12-19
pubmed:abstractText
The ultrastructure of spermatozoa of four Plecoptera species, Leuctra fusca Linnaeus, Brachyptera risi (Morton), Taeniopteryx stankovitchi Ikonomov, T. kuehtreiberi (Aubert), was investigated by light microscopy, scanning and transmission electron microscopy, and immunofluorescence microscopy. The spermatozoa of all the species have a complex acrosome, are filiform and flagellate, with a '9+9+2' axoneme flanked by two mitochondrial derivatives. However, the structure shows a certain interspecific heterogeneity. L. fusca has a short conical nucleus in the apical position and an axoneme flanked by two accessory bodies. In the sperm of the Taeniopterygidae, the nucleus is a long cylindrical body which lies between the two mitochondrial derivatives flanking the axoneme for most of its length. Our results suggest a close phylogenetic affinity between Plecoptera and the other orders of Polyneoptera, although the proposed sister-group relationship between Plecoptera and Embioptera cannot be confirmed.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Oct
pubmed:issn
1873-5495
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
55-62
pubmed:year
2001
pubmed:articleTitle
Comparative spermatology in Plecoptera (Insecta): an ultrastructural investigation on four species.
pubmed:affiliation
Department of Environmental Sciences, Tuscia University, 01100 Viterbo, Italy.
pubmed:publicationType
Journal Article