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dc.contributor.authorÇek-Yalnız, Şehriban
dc.contributor.authorYılmaz, Erdal
dc.date.accessioned12.07.201910:50:10
dc.date.accessioned2019-07-12T22:05:55Z
dc.date.available12.07.201910:50:10
dc.date.available2019-07-12T22:05:55Z
dc.date.issued2019
dc.identifier.citationCek-Yalnız, S., Yilmaz, E. (2019). Atresia and apoptosis in pre- and postovulatory follicles of sharptooth catfish (clarias gariepinus, Burchell, 1822). Pakistan Journal of Zoology 51(1), 85-95. doi: 10.17582/journal.pjz/2019.51.1.85.95en_US
dc.identifier.issn0030-9923
dc.identifier.urihttps://doi.org/10.17582/journal.pjz/2019.51.1.85.95
dc.identifier.urihttps://hdl.handle.net/20.500.12508/584
dc.descriptionWOS: 000456630500010en_US
dc.descriptionScience Citation Index Expandeden_US
dc.description.abstractOvarian follicular atresia and postovulatory regression in mammals is mediated by apoptosis, which is a natural occurring cause of cellular death. However, its function in fish is largely unknown. In order to discuss the possible role of apoptosis in fish ovarian follicular atresia and postovulatory regression, the pre and postovulatory follicles (POF) of the freshwater teleost, Clarias gariepinus were observed by light microscopy. The germinal vesicle and the cytoplasmic organelles of the oocyte were disintegrated. The theca of atretic mature oocytes was hypertrophied and persisted to form the interstitial cells, whereas the granulosa cells were regressed and disappeared. Erythrocytes and leukocytes were also detected at the advance stage of atresia. Apoptosis in the granulosa cells were clearly detected. The chromatin condensation against the nuclear envelope, cell shrinkage, surface blebbing and generation of apoptotic bodies by cell fragmentation were evidence of apoptosis. In pre and postovulatory follicles, karyorhexis and the budding phenomena were clearly detected. Karyorhexis and budding phenomena were also the sing of apoptosis. Atresia was also clearly detected in pre and postovulatory follicles. The detection of karyorhexis, characteristic of apoptotic cells may provide a better understanding in atresia mechanism. It seems that apoptosis has a major role in the elimination of POF and atretic oocytes in the ovaries of C. gariepinus.en_US
dc.description.sponsorshipUniversity of Mustafa Kemal, Turkeyen_US
dc.description.sponsorshipThe study was financed by the University of Mustafa Kemal, Turkey.en_US
dc.language.isoengen_US
dc.publisherUniversity of Punjab (new Campus)en_US
dc.relation.isversionof10.17582/journal.pjz/2019.51.1.85.95en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAtresiaen_US
dc.subjectApoptosisen_US
dc.subjectClarias Gariepinusen_US
dc.subjectHistologyen_US
dc.subject.classificationCatfishes | Embryonic Development | Yolk sacen_US
dc.subject.classificationZoologyen_US
dc.subject.otherapoptosisen_US
dc.subject.othercellen_US
dc.subject.othercell organelleen_US
dc.subject.othercytoplasmen_US
dc.subject.otherdetection methoden_US
dc.subject.otherfreshwater environmenten_US
dc.subject.otherhistologyen_US
dc.subject.otherteleosten_US
dc.subject.otherclarias gariepinusen_US
dc.subject.othermammaliaen_US
dc.subject.otherteleosteien_US
dc.subject.otherovarian follicular atresiaen_US
dc.subject.otherteleost fishen_US
dc.subject.otherautophagyen_US
dc.subject.othergrowthen_US
dc.subject.otherregressionen_US
dc.subject.otheroogenesisen_US
dc.subject.otheroocyteen_US
dc.titleAtresia and apoptosis in pre- and postovulatory follicles of sharptooth catfish (clarias gariepinus, Burchell, 1822)en_US
dc.typearticleen_US
dc.relation.journalPakistan Journal of Zoologyen_US
dc.contributor.departmentDeniz Bilimleri ve Teknolojisi Fakültesien_US
dc.identifier.volume51en_US
dc.identifier.issue1en_US
dc.identifier.startpage85en_US
dc.identifier.endpage95en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.contributor.isteauthorÇek-Yalnız, Şehriban
dc.relation.indexWeb of Science (ESCI) - Scopusen_US


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