Histological observations on transovarial transmission of a yeast-like symbiote in Nilaparvata lugens Stal (Homoptera, Delphacidae)
Histological observations on transovarial transmission of a yeast-like symbiote in Nilaparvata lugens Stal (Homoptera, Delphacidae)
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DOI：
10.1054/tice.2001.0173
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发表时间：
2001-06-01
期刊：
影响因子：
2.6
通讯作者：
Hou, RF
中科院分区：
文献类型：
--
作者：
Cheng, DJ;Hou, RF
用光镜和电镜观察了褐飞虱（Nilaparvata lugens Stal）中酵母样共生体（YLS）的经卵巢传播，光镜显示交配雌性的睾丸和精囊中没有YLS，表明精子不参与该共生体的经卵巢传播，光镜和电镜均显示了YLS从脂肪体向卵母细胞的传播过程。菌丝细胞中的共生体通过胞吐作用从合胞体中移出，合胞体是由一层脂肪体细胞形成的。然后，血淋巴中的游离YLS靠近卵巢蒂附近，被卵泡细胞包围，通过卵巢上皮塞的内噬作用进入原代卵母细胞周围的卵泡细胞。YLS进入成熟卵后聚集在卵后端，最终形成共生体球。(C) 2001哈考特出版有限公司
Transovarial transmission of a yeast-like symbiote (YLS) in the brown planthopper, Nilaparvata lugens Stal, was observed with light and electron microscopy, Light micrographs showed that there was no YLS in testes and spermathecae of the mated females, indicating that sperm is not involved in the transovarial transmission of the symbiote, Both light and electron micrographs showed the processes of YLS transmission from fat body to the oocyte, In females, the symbiotes in mycetocytes moved out of the syncytium, which is formed from a layer of fat body cells, by exocytosis. and released into hemocoel, Then, the free YLS in hemolymph approached to the ovarioles near pedicel and were enclosed by follicle cells, They entered the follicle cells around the primary oocyte by endocytosis at epithelial plug of the ovariole. The YLS aggregated at the posterior end of the mature egg after entering, and finally formed a symbiote ball. (C) 2001 Harcourt Publishers Ltd.