Structural and histological observations on the male reproductive system of adult red poplar leaf beetle Chrysomela populi Linnaeus, 1758 (Coleoptera: Chrysomelidae),Microscopy Research and Technique

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Structural and histological observations on the male reproductive system of adult red poplar leaf beetle Chrysomela populi Linnaeus, 1758 (Coleoptera: Chrysomelidae)
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2021-08-24 , DOI: 10.1002/jemt.23916
Nurcan Özyurt Koçakoğlu ₁

Affiliation

This study described the anatomy and histology of the male reproductive system in Chrysomela populi, which is an economically important species belonging to the family Chrysomelidae. Therefore, reproductive biology has been studied to combat this insect. As well as, the characters associated with the reproductive tract have been potential to discuss aspects of the system and to better understand the reproductive dynamics. The male reproductive system of C. populi has a pair of testes, a pair of vas efferentia and deferentia, a pair of seminal vesicles, a pair of accessory glands, an ejaculatory bulb, an ejaculatory duct, and an aedeagus. The testis consists of two flower-shaped lobes. Each testis has 20 sperm tubules (testicular follicles) containing cysts of germ cells at various developmental stages within the light orange peritoneal sheath. Testicular follicles are composed of three different (growth, maturation, and differentiation) zones. In the middle region of each testis joins with the vas efferens. The testis is attached to the seminal vesicle by a small stalk like vas efferens. In the lumen of the vas efferens, seminal vesicle, and vas deferens, sperms form clumps in the form of thin threads. The proximal end of the vas deferens is connected to the common ejaculatory duct. It joins with the ejaculatory bulb. Around the ejaculator bulb, there is a pair of convoluted, flat-surface tubular structure accessory glands. Posterior ejaculatory duct joins with the aedeagus.

中文翻译：

成年红杨叶甲虫 Chrysomela populi Linnaeus，1758（鞘翅目：Chrysomelidae）雄性生殖系统的结构和组织学观察

这项研究描述了Chrysomela populi雄性生殖系统的解剖学和组织学，它是属于 Chrysomelidae 的经济上重要的物种。因此，已经研究了生殖生物学来对抗这种昆虫。此外，与生殖道相关的特征有可能讨论系统的各个方面并更好地了解生殖动态。C. populi的雄性生殖系统有一对睾丸、一对输精管和输精管、一对精囊、一对副腺、一个射精球、一个射精管和一个射精管。睾丸由两个花形裂片组成。每个睾丸有 20 个精管（睾丸滤泡），在浅橙色的腹膜鞘内含有处于不同发育阶段的生殖细胞囊肿。睾丸卵泡由三个不同的（生长、成熟和分化）区域组成。在每个睾丸的中间区域与输精管相连。睾丸通过一根像输精管一样的小茎附着在精囊上。在输精管、精囊和输精管的管腔中，精子形成细线状的团块。输精管的近端与射精总管相连。它与射精球相连。射精球周围有一对回旋的、平面管状结构的附属腺体。后射精管与伊达古汇合。

更新日期：2021-08-24

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