The Structure of the Spermatozoon of the Japanese Quail, Coturnix coturnix L., var. japonica
The Structure of the Spermatozoon of the Japanese Quail, Coturnix coturnix L., var. japonica
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日本鹌鹑 (Coturnix coturnix L., var.) 精子的结构
DOI：
10.1111/j.1463-6395.1995.tb00981.x
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发表时间：
1995
期刊：
影响因子：
1.2
通讯作者：
D. Woolley
中科院分区：
文献类型：
--
作者：
D. Woolley
日本鸣禽的精子与其他非雀形目鸟类的精子基本一致。然而，值得注意的是，鞭毛非常细长(208μm)，并在广泛的中段携带大约2,500个线粒体。在超微结构上，顶体和顶体-核连接与其他鹰形鸟类的报道完全相同。颈部含有两个中心粒，几乎排列成一条直线；这种不寻常的布局显然也出现在珍珠鸡的精子中。在轴丝的顶端，在中央一对微管的末端之外，有一种结构-顶端颗粒-以前在家禽的精子中被识别。胰酶消化使轴丝柱体分裂，然后二联体螺旋上升。这种反应以前在其他鸟类的精子尾巴中也有报道。
The spermatozoa of the Japanese quail conform, in their general ‘sauropsid’ plan, to that of other non-passerine birds. They are notable, however, in that the flagellum is very elongated (208 μm) and carries approximately 2,500 mitochondria in an extensive midpiece. Ultrastructurally, the acrosome and acrosome-nucleus junction is exactly as reported for other galliform birds. The neck region contains two centrioles arranged almost in-line; this unusual layout apparently occurs also in guinea fowl sperm. At the tip of the axoneme, beyond the termination of the central pair microtubules, is a structure—the tip granule—previously recognized in sperm of the domestic fowl. Trypsin digestion splits the axonemal cylinder, and the doublets then spiralize. This response has been reported before, in the sperm tails of other avian species.