Ultrastructure of the chorion and the micropyle of an endemic cyprinid fish, Cyprinion tenuiradius Heckel, ۱۸۴۹ (Teleostei: Cyprinidae) from southern Iran
محل انتشار: مجله علوم شیلات ایران، دوره: 11، شماره: 3
سال انتشار: 1391
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 116
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شناسه ملی سند علمی:
JR_JIFRO-11-3_016
تاریخ نمایه سازی: 22 اسفند 1400
چکیده مقاله:
The scanning electron microscope was used to investigate
the ultrastructures of the egg membrane surface (unfertilized egg) of an
endemic cyprinid fish, Cyprinion tenuiradius Heckel, ۱۸۴۹. The eggs of this species were almost circular in shape, had a smooth surface and one
type II micropyle consisting
of the flat pit and a long canal in
the animal polar region. The
micropyle region was not flat, micropyle was circular or oval in shape and the
micropyle canal was located in its center. Round or oval accessory pores were
also observed in the pit around of the micropylar canal. The surface of zona
radiata was smooth with a uniform distribution of almost round pores with lips.
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