亚洲虎蚊白纹伊蚊(Diptera: Culicidae)卵泡发育前期营养的影响。

IF 2 3区 工程技术 Q2 ANATOMY & MORPHOLOGY
Abeer S Yamany, Rewaida Abdel-Gaber
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引用次数: 0

摘要

登革热对全球公共卫生构成威胁,每年有 25 亿人面临感染风险。由于白纹伊蚊是登革热的主要传播媒介,因此要对其进行密切监测和处理。根除登革热的效率在很大程度上取决于对雌蚊生理年龄的了解。这项研究解决了关于卵生前营养对产卵机制影响的关键昆虫学问题。卵巢发育包括两个不同时期:卵黄发生前期和卵黄发生期。卵黄发生前期摄入的糖分会影响血粉的大小。影响卵黄发生过程的主要参数是糖浓缩后是否存在血食事件。雌蚊摄入蔗糖后,卵泡进入卵黄发生前期的第三阶段。一旦雌蚊摄食蔗糖后的血液,卵巢发育进入卵黄发生期,卵母细胞胞质显示卵黄颗粒像皇冠一样组织成一排或两排,卵母细胞体积增大。血餐前喂 15%蔗糖的雌性,卵黄发生量最大,卵泡大小是只喂水的雌性的 7 倍。日粮中添加 7% 的蔗糖后,受精率提高了 78.7%。卵母细胞内的线粒体增加,这很可能是由于它们从合成卵黄的哺育细胞中转移出来。本研究详细描述了在卵黄发生前期卵巢中检测到的组织学变化以及与卵黄形成相关的组织学变化,表明卵母细胞中卵黄蛋白的沉积与血餐有关,与蔗糖饲喂无关。研究亮点前卵黄发生期的成虫营养对白纹伊蚊成虫的各种生物参数和生理年龄有显著影响。雌蚊在血餐前摄入含 15%蔗糖的食物后,卵黄发生发育、病媒能力和卵泡大小都有明显增长。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of nutrition during previtellogenesis on the follicular development in the Asian Tiger mosquito, Aedes albopictus (Skuse) (Diptera: Culicidae).

Dengue fever poses a global public health threat, with 2.5 billion people at risk of infection each year. Because the Aedes albopictus is the primary vector of dengue, it is closely monitored and handled. The efficiency of Dengue eradication is strongly dependent on understanding a female mosquito's physiological age. This study addresses key entomological issues about the impact of previtellogenic nutrition on egg production mechanisms. Ovarian development included two distinct periods: previtellogenesis and vitellogenesis. Sugar intake during previtellogenesis influences the size of the blood meal. The major parameter influencing the vitellogenesis process is the presence of a hematophagous feeding event following sugar concentration. Upon subjecting female mosquitoes to sucrose, the ovarian follicles entered the third phase of previtellogenesis. Once females feed on blood following sucrose, ovarian development enters the vitellogenesis, and the oocyte cytoplasm reveals that the yolk granules are organized in one or two rows like a crown, increasing oocyte size. Females fed 15% sucrose before a blood meal, have the largest vitellogenic growth, and follicular size, which is seven times greater than those fed water only. Fecundity increased by 78.7% by adding 7% sucrose to the diet. Mitochondria within oocytes increase, most likely due to their transportation from the nurse cells, where the yolk is synthesized. This study describes in detail the histological alterations detected in the ovaries during the previtellogenesis as well as those associated with yolk formation, suggesting that yolk protein deposition in the oocyte is associated with blood meal, independent of sucrose feeding. RESEARCH HIGHLIGHTS: Adult nutrition during previtellogenesis significantly impacts various biological parameters and the physiological age of adults of Aedes albopictus. Female mosquitoes experienced significant growth in vitellogenic development, vectorial capacity, and follicular size after consuming a diet with 15% sucrose before a blood meal.

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来源期刊
Microscopy Research and Technique
Microscopy Research and Technique 医学-解剖学与形态学
CiteScore
5.30
自引率
20.00%
发文量
233
审稿时长
4.7 months
期刊介绍: Microscopy Research and Technique (MRT) publishes articles on all aspects of advanced microscopy original architecture and methodologies with applications in the biological, clinical, chemical, and materials sciences. Original basic and applied research as well as technical papers dealing with the various subsets of microscopy are encouraged. MRT is the right form for those developing new microscopy methods or using the microscope to answer key questions in basic and applied research.
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