Ultrastructure of the female reproductive organs of the diving beetle Deronectes moestus incospectus (Leprieur, 1876) (Dytiscidae, Hydroporinae) DOI Creative Commons
Romano Dallai, David Mercati, Paulo Henrique Rezende

et al.

Arthropod Structure & Development, Journal Year: 2023, Volume and Issue: 75, P. 101287 - 101287

Published: July 1, 2023

We describe the ultrastructure of female reproductive organs Deronectes moestus (Dytiscidae Hydroporinae). The long spermathecal duct has a simple epithelium lined internally by thin cuticle and externally thick layer muscle cells. wide lumen contains electron-dense material, among which remnants extracellular material are visible. This consists tubular structures assembled around sperm bundles previously described in male deferent ducts. so-called gland, disposed along duct, is structure with epithelial cells an irregular bearing rich system microvilli. Many mitochondria visible apical cytoplasm cells, few spheroidal bodies close to basal nuclei. Since gland suggests it involved fluid uptake from rather than secretory activity, term coined other authors this organ, inappropriate. spermatheca large complex showing duct-forming organ distinctive ultrastructural features those ducts, namely having mitochondrial matrix small crystallized area dots. Because its overall organization, D. can be considered more integrated studied hydroporine species.

Language: Английский

The Insect Spermatozoon DOI
Romano Dallai, David Mercati

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Citations

0
Ultrastructure of the Female Reproductive Organs of the Diving Beetle Deronectes Moestus Incospectus (Leprieur, 1876) (Dytiscidae, Hydroporinae) DOI
Romano Dallai, David Mercati, Paulo Henrique Rezende

et al.

Published: Jan. 1, 2023

We describe the ultrastructure of female reproductive organs Deronectes moestus (Dytiscidae Hydroporinae). The long spermathecal duct has a simple epithelium lined with thin cuticle and surrounded by thick layer muscle fibres. wide lumen contains electron-dense secretory material, among which remnants extracellular material are visible. This consists tubular structures assembled around sperm bundles previously described in male deferent ducts. so-called gland, disposed along duct, is structure epithelial cells an irregular bearing rich system microvilli. Many mitochondria visible apical cytoplasm cells, few spheroidal bodies close to basal nuclei. Since gland suggests it involved fluid uptake from rather than activity, term coined other authors this organ, inappropriate. spermatheca large complex showing duct-forming cells. organ distinctive ultrastructural features those ducts, namely having mitochondrial matrix small crystallized area dots. Because its overall organization, D. can be considered more integrated studied hydroporine species.

Language: Английский

Citations

0
Ultrastructure of the female reproductive organs of the diving beetle Deronectes moestus incospectus (Leprieur, 1876) (Dytiscidae, Hydroporinae) DOI Creative Commons
Romano Dallai, David Mercati, Paulo Henrique Rezende

et al.

Arthropod Structure & Development, Journal Year: 2023, Volume and Issue: 75, P. 101287 - 101287

Published: July 1, 2023

We describe the ultrastructure of female reproductive organs Deronectes moestus (Dytiscidae Hydroporinae). The long spermathecal duct has a simple epithelium lined internally by thin cuticle and externally thick layer muscle cells. wide lumen contains electron-dense material, among which remnants extracellular material are visible. This consists tubular structures assembled around sperm bundles previously described in male deferent ducts. so-called gland, disposed along duct, is structure with epithelial cells an irregular bearing rich system microvilli. Many mitochondria visible apical cytoplasm cells, few spheroidal bodies close to basal nuclei. Since gland suggests it involved fluid uptake from rather than secretory activity, term coined other authors this organ, inappropriate. spermatheca large complex showing duct-forming organ distinctive ultrastructural features those ducts, namely having mitochondrial matrix small crystallized area dots. Because its overall organization, D. can be considered more integrated studied hydroporine species.

Language: Английский

Citations

0