福寿螺卵巢发育与卵子发生的组织学研究  

Histological studies on oogenesis and ovarian development of Pomacea canaliculate

作　　者：赵永超[1] 严志会 吴帆[1] 郑宏涛[1] 李海云[1] 章家恩[2] 

机构地区：[1]华南农业大学动物科学学院,广东广州510642 [2]华南农业大学热带亚热带生态研究所,广东广州510642

出　　处：《华南农业大学学报》2016年第3期95-99,共5页Journal of South China Agricultural University

基　　金：国家自然科学基金-广东联合基金(U1131006)

摘　　要：【目的】研究福寿螺Pomacea canaliculate卵巢发育各期的主要典型特征。【方法】采用组织切片和苏木精-伊红(H.E)染色法,对入侵生物福寿螺的卵巢发育过程、卵母细胞发育各期的显微形态进行了观察和研究。【结果】根据福寿螺卵巢发育的组织学特征,将其发育过程分为5个时期:增殖期、生长期、成熟期、排放期和休止期。在卵巢发育过程中,卵母细胞发生一系列形态结构变化,最终发育为成熟的卵子。福寿螺卵子的形成依次经过卵原细胞期、卵黄合成前期、卵黄合成后期和成熟期。【结论】研究探明了福寿螺的卵巢为管状分支型腺体,卵原细胞经历了5个发育时期形成了成熟的卵子,并分析了福寿螺强大生殖力的原因。[ Objective ] The main typical characteristics of each ovary developmental stage of Pomacea canaliculate were studied. [ Method ] Mieromorphology of ovarian developmental process and each stage of oocyte development of invader P. canaliculate were observed using histologic sectioning and hematoxylin- eosin staining methods. [ Result ] The ovarian developmental process of P. canaliculata is divided into five stages including proliferating stage, growing stage, maturing stage, spawning stage and recovering stage, based on different histological characteristics. During ovarian development, ovum forming cells experienced a series of morphological and structural changes, and eventually developed into mature eggs. The formation of P. canaliculata ovum consisted the oogonium stage, early yolk synthesis stage, late yolk synthesis stage and maturation stage. [ Conclusion ] The ovarian of P. canaliculata is a tubular branching gland, the oogonium goes through five development stages to form the mature ovum, and the structural and physiological characteristics of its ovarian development provide a basis for high fertility of P. canaliculata.

关 键 词：福寿螺 卵巢发育 卵子发生 显微结构 

分 类 号：Q955[生物学—动物学]