Ricardo Amanda Juliana, de Oliveira Patrícia Rosa, Bechara Gervásio Henrique, Mathias Maria Izabel Camargo
Departamento de Biologia, I.B., UNESP, Av. 24 A, no 1515, Cx. Postal 199, CEP 13506-900, Rio Claro-SP, Brazil.
Tissue Cell. 2007 Jun;39(3):203-15. doi: 10.1016/j.tice.2007.03.005. Epub 2007 Jun 4.
The ovary of the tick Amblyomma triste is classified as panoistic, which is characterized by the presence of oogonia without nurse and follicular cells. The present study has demonstrated that the oocytes in all developmental stages (I-IV) are attached to the ovary through a pedicel, a cellular structure that synthesizes and provides carbohydrate, lipids and proteins supplies for the oocytes during the vitellogenesis process. The lipids are deposited during all oocyte stages; they are freely distributed as observed in stages II, III and IV or they form complexes with other elements. The proteins are also deposited in all stages of the oocytes, however, in lower concentration in the stage IV. There is carbohydrate deposition from oocytes in the stage II as well as in stages III and IV. In addition, the present work has demonstrated that the oocyte yolk of A. triste has a glycolipoprotein nature and the elements are deposited in the following sequence: firstly the lipids and proteins, and finally the carbohydrates.
钝缘蜱的卵巢被归类为无滋式卵巢，其特征是存在没有滋养细胞和滤泡细胞的卵原细胞。本研究表明，所有发育阶段（I-IV）的卵母细胞都通过一个柄附着在卵巢上，柄是一种细胞结构，在卵黄发生过程中为卵母细胞合成并提供碳水化合物、脂质和蛋白质供应。脂质在卵母细胞的所有阶段都会沉积；在II、III和IV阶段，它们自由分布，或者与其他元素形成复合物。蛋白质也在卵母细胞的所有阶段沉积，然而，在IV阶段浓度较低。在II阶段以及III和IV阶段的卵母细胞中都有碳水化合物沉积。此外，本研究还表明，钝缘蜱的卵母细胞卵黄具有糖脂蛋白性质，这些成分按以下顺序沉积：首先是脂质和蛋白质，最后是碳水化合物。
