Changes in sperm tail of eyprepocnemis plorans (Insecta, orthoptera) as a result of in vitro incubation in spermathecal extract

Andrea Giuffrida, Floriana Rosati

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Sperm modifications induced in vitro by spermathecal extracts from virgin females of the orthopteran Eyprepocnemis plorans were studied. In this species spermatozoa undergo a series of progressive changes in surface and flagellar organization during storage in the spermatheca. Similar modifications were also observed in vitro, although with different timing and quantification. The starting point of flagellar modifications is in the “triskelion-like” units of the fibrous network, a fibrillar system in the space between the axoneme and mitochondrial derivatives. The spermathecal extract induces disorganization of the “triskelions,” causing progressive dismantling of the sperm tail and suggesting that these structures are the key point of connection between the flagellar components. Only spermathecal extract from sexually mature individuals caused such modifications in vitro. Preliminary experiments were performed to identify the components of spermathecal extract responsible for these changes.

Original languageEnglish (US)
Pages (from-to)47-52
Number of pages6
JournalInvertebrate Reproduction and Development
Volume24
Issue number1
DOIs
StatePublished - Sep 1993
Externally publishedYes

Keywords

  • Cytoskeleton
  • Flagellum
  • Microtubules
  • Sperm
  • Spermatheca

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Developmental Biology

Fingerprint Dive into the research topics of 'Changes in sperm tail of eyprepocnemis plorans (Insecta, orthoptera) as a result of in vitro incubation in spermathecal extract'. Together they form a unique fingerprint.

  • Cite this