Ultrastructure developments during spermiogenesis in Polydora ciliata (Annelida: Spionidae), a parasite of mollusca

doi:10.1007/s11802-014-2309-y

	Ultrastructure developments during spermiogenesis in Polydora ciliata (Annelida: Spionidae), a parasite of mollusca
	Gao Yan1,2 ; Zhang Tao1 ; Zhang Libin 1; Qiu Tianlong1,2 ; Xue Dongxiu1,2 ; Yang Hongsheng1 ; Yang, HS (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
	2014-12-01
发表期刊	JOURNAL OF OCEAN UNIVERSITY OF CHINA
卷号	13 期号:6 页码:1071-1077
文章类型	Article
摘要	Spionid worms of Polydora ciliata inhabit the shells of many commercially important bivalves and cause disease in molluscan aquaculture. Their sperm structure is closely related to their fertilization method. To give an insight into the sperm structure and spermatogenesis, ultrastructure details of the subcellular components of germ cells during spermiogenesis of Polydora ciliata are detected by transmission electron microscopy (TEM). In P. ciliata, during spermiogenesis, chromatin is regularly arranged as dense fibrils and becomes more condensed when the nucleus elongates. Microtubules do not surround the nucleus during its elongation. The Golgi phase is characterized by the formation of proacrosomal granules within the Golgi apparatus. The proacrosomal granules fuse to form a single, spherical acrosomal vesicle that migrates to the anterior pole of the cell. At the time of nuclear condensation, mitochondria become reduced in number but increased in size, causing deep indentation at the base of the nucleus. The mid-piece has a few mitochondria. The cap phase includes the spreading of the acrosomal granule over the surface of the nucleus of the differentiating spermatid. The acrosomal phase of spermiogenesis is typically associated with changes in the shape of the nucleus, acrosome and tail. The relationship of sperm ultrastructure to spermiogenesis in spionidae species was discussed.
关键词	Polydora Ciliata Spermiogenesis Ultrastructure
学科领域	Oceanography
DOI	10.1007/s11802-014-2309-y
收录类别	SCI
语种	英语
WOS记录号	WOS:000344788700025
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/24053
专题	海洋生态与环境科学重点实验室
通讯作者	Yang, HS (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Gao Yan,Zhang Tao,Zhang Libin,et al. Ultrastructure developments during spermiogenesis in Polydora ciliata (Annelida: Spionidae), a parasite of mollusca[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2014,13(6):1071-1077.
APA	Gao Yan.,Zhang Tao.,Zhang Libin.,Qiu Tianlong.,Xue Dongxiu.,...&Yang, HS .(2014).Ultrastructure developments during spermiogenesis in Polydora ciliata (Annelida: Spionidae), a parasite of mollusca.JOURNAL OF OCEAN UNIVERSITY OF CHINA,13(6),1071-1077.
MLA	Gao Yan,et al."Ultrastructure developments during spermiogenesis in Polydora ciliata (Annelida: Spionidae), a parasite of mollusca".JOURNAL OF OCEAN UNIVERSITY OF CHINA 13.6(2014):1071-1077.

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