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dc.contributor.authorErkan, MELİKE BELKIS
dc.contributor.authorAyun, YASEMİN
dc.date.accessioned2021-03-03T11:14:14Z
dc.date.available2021-03-03T11:14:14Z
dc.date.issued2014
dc.identifier.citationErkan M. B. , Ayun Y., "Morphological and histochemical examination of male and female gonads in Homarus gammarus (L. 1758)", CENTRAL EUROPEAN JOURNAL OF BIOLOGY, cilt.9, sa.1, ss.37-48, 2014
dc.identifier.issn1895-104X
dc.identifier.otherav_26c6e22b-050d-44d0-a855-481d75fa759c
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/30927
dc.identifier.urihttps://doi.org/10.2478/s11535-013-0148-7
dc.description.abstractThe reproductive organs of both male and female European lobsters (Homarus gammarus) are H-shaped gonads that lie dorsal to the gut on the large hepatopancreas. The ovary consists of a pair of tubular, parallel lobules with a connecting bridge. The germarium of the ovary containing oogonia is concentrated in the center of the ovarian lobe. As oogonesis proceeds, the oocytes move to the peripheral regions of the ovary. The follicle cells begin to surround the oocytes in the previtellogenic stage, and the mature oocytes are completely surrounded by the follicle cells. Carbohydrates exist in both early and late vitellogenic oocytes that give PAS positive reaction. However, their rising protein content in late vitellogenic oocytes makes them stain with Bromophenol blue. Testes show convoluted lobules with a germinal epithelium and a central collecting duct, and the paired vasa deferentia have three distinct parts. Spermatophores are nonpedunculate and tubular, which extrude as a continuous column and consist of a sperm mass covered with primary and secondary layers. The primary layer stains with Bromophenol Blue and gives a PAS positive reaction. But the secondary layer only weakly stains with Bromophenol Blue. The histochemical results may indicate that the function of the two layers is different.
dc.language.isoeng
dc.subjectYaşam Bilimleri
dc.subjectTemel Bilimler
dc.subjectTemel Tıp Bilimleri
dc.subjectTıbbi Biyoloji
dc.subjectBiyokimya
dc.subjectSağlık Bilimleri
dc.subjectTıp
dc.subjectYaşam Bilimleri (LIFE)
dc.subjectBiyoloji ve Biyokimya
dc.subjectBİYOLOJİ
dc.titleMorphological and histochemical examination of male and female gonads in Homarus gammarus (L. 1758)
dc.typeMakale
dc.relation.journalCENTRAL EUROPEAN JOURNAL OF BIOLOGY
dc.contributor.departmentİstanbul Üniversitesi , Fen Fakültesi , Biyoloji
dc.identifier.volume9
dc.identifier.issue1
dc.identifier.startpage37
dc.identifier.endpage48
dc.contributor.firstauthorID36475


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