Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Åse Jespersen"'
Publikováno v:
Journal of Molluscan Studies. 81:397-406
A morphological study revealed that the NW American soft-bottom bivalve Nutricola tantilla is dioecious, not a protandric hermaphrodite as previously reported. We base this conclusion on the smaller males having highly specialized, glandular sperm du
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f72723be5da473361d0099acc92e378
https://doi.org/10.1093/mollus/eyv015
https://doi.org/10.1093/mollus/eyv015
Autor:
Åse Jespersen, Kjeld Møllgård, C. Yding Andersen, Melissa C. Lutterodt, P. E. Høyer, A.G. Byskov
Publikováno v:
Molecular Human Reproduction. 16:621-631
The aim of this study was to investigate the spatiotemporal development of autonomic nerve fibers and primordial germ cells (PGCs) along their migratory route from the dorsal mesentery to the gonadal ridges in human embryos using immunohistochemical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7ebfe5c27be970e5cbfc4acec735159
https://doi.org/10.1093/molehr/gaq052
https://doi.org/10.1093/molehr/gaq052
Publikováno v:
Zoologischer Anzeiger - A Journal of Comparative Zoology. 248:57-67
Males and females of the commensal protandric bivalve Pseudopythina subsinuata have paired seminal receptacles, the interior of which contains many slender elongate cells. The testis produces small euspermatozoa and comparatively few and much larger
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c1e778f76c5319213bc60f960dfbfa5
https://doi.org/10.1016/j.jcz.2008.11.001
https://doi.org/10.1016/j.jcz.2008.11.001
Autor:
Jørgen Lützen, Åse Jespersen
Publikováno v:
Acta Zoologica. 90:51-67
The position and structure of paired ‘lateral organs’ in the foot of Arthritica semen and Arthritica bifurca might indicate a chemosensory function. In both species part of the organ is also glandular. In A. semen the glandular epithelium is deta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c57da031a0eec31b2f84305e9ac8691c
https://doi.org/10.1111/j.1463-6395.2008.00332.x
https://doi.org/10.1111/j.1463-6395.2008.00332.x
Autor:
Åse Jespersen, Jørgen Lützen
Publikováno v:
Acta Zoologica. 88:59-63
The sperm cells of Kellia suborbicularis are narrow with a short bullet-shaped acrosome, a 5.0–5.5 µm long and 0.4–0.6 µm broad nucleus, and a short midpiece with a ring of five mitochondria. The disposition of the subacrosomal substance into a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52a03dcd9ee47d33e243d160a0d31248
https://doi.org/10.1111/j.1463-6395.2007.00251.x
https://doi.org/10.1111/j.1463-6395.2007.00251.x
Autor:
Åse Jespersen, Jørgen Lützen
Publikováno v:
Zoomorphology. 125:157-173
Reproduction and/or sperm structure was studied in 18 species belonging to five genera of Galeommatidae from Phuket Island, Andaman Sea, Thailand, and Hong Kong. Incubation of the ova occurs in the inner and outer demibranchs of both gills, and sperm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41b4962bdd69fe2f0e040fe550c5e4dd
https://doi.org/10.1007/s00435-006-0020-2
https://doi.org/10.1007/s00435-006-0020-2
Autor:
Heidi Elisabeth Langhoff, Birgitte M Haugan, Mai‐Britt Elin Rindom Andersen, Åse Jespersen, Anders Galatius
Publikováno v:
Acta Zoologica. 87:77-82
Epiphyseal development was investigated on X-rays of flippers from 158 harbour porpoises from Danish waters. Development followed a proximodistal pattern similar to what is known in other cetacean species. Ossification of epiphyses was rare in the ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ee3623af1397a2af057e3ef2b755c4f
https://doi.org/10.1111/j.1463-6395.2006.00223.x
https://doi.org/10.1111/j.1463-6395.2006.00223.x
Publikováno v:
Rasmussen, T H, Jespersen, Å & Korsgaard, B 2006, ' Gonadal morphogenesis and sex differentiation in intraovarian embryos of the viviparous fish Zoarces viviparus (Teleostei, Perciformes, Zoarcidae): A histological and ultrastructural study ', Journal of Morphology, vol. 267, no. 9, pp. 1032-1047 . https://doi.org/10.1002/jmor.10453
It is essential to know the timing and process of normal gonadal differentiation and development in the specific species being investigated in order to evaluate the effect of exposure to endocrine-disrupting chemicals on these processes. In the prese
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21312aaa55b8059905fa7790754320f5
https://doi.org/10.1002/jmor.10453
https://doi.org/10.1002/jmor.10453
Autor:
Åse Jespersen, Anders Galatius
Publikováno v:
Marine Mammal Science. 21:401-410
Directional asymmetry (DA) of the lengths, diameters, and masses of the scapula, humerus, radius, and ulna were analyzed on a sample of 213 harbor porpoises from Denmark and West Greenland. The levels of DA were consistent across yearlings and older
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72a433543e50d497e206431887ca0a87
https://doi.org/10.1111/j.1748-7692.2005.tb01240.x
https://doi.org/10.1111/j.1748-7692.2005.tb01240.x
Publikováno v:
Zoologischer Anzeiger - A Journal of Comparative Zoology. 243:3-19
Three species of galeommatoidean bivalves live commensally with Brissus latecarinatus (Echinoidea, Spatangoidea) near Phuket Marine Biological Center, Thailand. Scintillona brissae Morton and Scott (family Galeommatidae) and Montacutella echinophila
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce81fe900a28dd121e0fc8ff3eaada2e
https://doi.org/10.1016/j.jcz.2004.04.001
https://doi.org/10.1016/j.jcz.2004.04.001