vitellogenesis

简明释义

英[vɪˌteləʊˈdʒenɪsɪs]美[ˌvaɪtloˈdʒenɪsɪs;ˌvɪtloˈdʒen

n. 卵黄生成作用

英英释义

单词用法

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例句

1.Vitellogenesis is regulated by hormones. There are obvious differences between hard ticks and soft ticks in hormonal effects and sorts.

蜱类卵黄发生受激素调控，激素的作用与作用激素的种类在硬蜱和软蜱中表现出较大差别。

2.Vitellogenesis is regulated by hormones. There are obvious differences between hard ticks and soft ticks in hormonal effects and sorts.

蜱类卵黄发生受激素调控，激素的作用与作用激素的种类在硬蜱和软蜱中表现出较大差别。

3.Vitellogenin is the key factor in vitellogenesis in insects.

卵黄原蛋白是昆虫卵黄发生的关键物质。

4.During the study of fish reproduction, researchers observed that the process of vitellogenesis (卵黄生成) is crucial for the development of healthy eggs.

在鱼类繁殖的研究中，研究人员观察到，vitellogenesis (卵黄生成) 过程对健康卵子的发育至关重要。

5.The scientists focused on how environmental factors influence vitellogenesis (卵黄生成) in amphibians.

科学家们专注于环境因素如何影响两栖动物的vitellogenesis (卵黄生成)。

6.In birds, vitellogenesis (卵黄生成) is regulated by hormonal changes during the breeding season.

在鸟类中，vitellogenesis (卵黄生成) 在繁殖季节由激素变化调节。

7.Researchers are investigating the genetic basis of vitellogenesis (卵黄生成) in various species of reptiles.

研究人员正在调查各种爬行动物物种中vitellogenesis (卵黄生成) 的遗传基础。

8.A deficiency in nutrients can lead to impaired vitellogenesis (卵黄生成) in aquatic animals.

营养不足会导致水生动物的vitellogenesis (卵黄生成) 受损。

作文

In the fascinating world of biology, the processes that govern the development of organisms are intricate and varied. One such process is known as vitellogenesis, which refers to the formation of yolk in the oocytes of female animals. This crucial stage of reproductive development plays a significant role in ensuring the survival and proper growth of embryos. Understanding vitellogenesis not only sheds light on reproductive biology but also has implications for fields such as developmental biology and evolutionary studies. During vitellogenesis, the ovaries of female organisms synthesize and accumulate yolk proteins, which are essential nutrients for the developing embryo. Yolk serves as a source of energy and provides vital substances necessary for cellular development. The process is particularly pronounced in oviparous animals, such as birds and fish, where eggs are laid outside the mother's body. In these species, the amount of yolk produced during vitellogenesis can determine the viability and health of the offspring. The regulation of vitellogenesis is influenced by various hormonal and environmental factors. For instance, in many species, the hormone estrogen plays a pivotal role in stimulating yolk production. Additionally, factors such as food availability and environmental conditions can impact the efficiency of vitellogenesis. This adaptability is crucial for species survival, as it allows females to adjust their reproductive strategies in response to changing circumstances. Research into vitellogenesis has revealed fascinating insights into the evolutionary adaptations of different species. For example, some fish have evolved to produce larger amounts of yolk in response to predation pressures, ensuring that their young have a better chance of survival in a hostile environment. Similarly, studies on amphibians have shown that variations in vitellogenesis can be linked to reproductive strategies and ecological niches, highlighting the interplay between biology and the environment. Moreover, understanding vitellogenesis can have practical applications in aquaculture and conservation efforts. By manipulating the factors that influence yolk production, scientists can enhance breeding programs for endangered species or improve the yield of commercially important fish. This knowledge not only contributes to biodiversity preservation but also supports sustainable practices in food production. In conclusion, vitellogenesis is a vital biological process that underpins reproduction in many animal species. Its significance extends beyond mere egg production; it is a key factor in the survival and development of future generations. As we continue to explore the complexities of reproductive biology, the study of vitellogenesis will undoubtedly remain an important area of research, offering insights into the delicate balance of life and the intricate mechanisms that sustain it.

在生物学的迷人世界中，支配生物体发育的过程复杂多样。其中一个过程被称为卵黄生成，指的是雌性动物卵母细胞中卵黄的形成。这一关键的生殖发育阶段在确保胚胎的生存和正常生长方面发挥着重要作用。理解卵黄生成不仅揭示了生殖生物学的奥秘，还对发育生物学和进化研究等领域有着深远的影响。 在卵黄生成过程中，雌性生物的卵巢合成并积累卵黄蛋白，这些蛋白质是胚胎发育所必需的营养素。卵黄作为能量来源，为细胞发育提供必要的物质。这个过程在卵生动物中尤为明显，例如鸟类和鱼类，它们的卵子是在母体外部产下的。在这些物种中，卵黄生成过程中产生的卵黄数量可以决定后代的生存能力和健康状况。 卵黄生成的调节受到各种激素和环境因素的影响。例如，在许多物种中，激素雌激素在刺激卵黄生产中发挥着关键作用。此外，食物供应和环境条件等因素也会影响卵黄生成的效率。这种适应性对物种的生存至关重要，因为它使雌性能够根据变化的情况调整其生殖策略。 对卵黄生成的研究揭示了不同物种进化适应的迷人见解。例如，一些鱼类在面对捕食压力时进化出产生更多卵黄的能力，以确保其幼崽在恶劣环境中的更好生存机会。同样，对两栖动物的研究表明，卵黄生成的变化可以与生殖策略和生态位相关联，突显了生物学与环境之间的相互作用。 此外，理解卵黄生成还可以在水产养殖和保护工作中发挥实际应用。通过操控影响卵黄生产的因素，科学家可以增强濒危物种的繁殖计划或提高商业重要鱼类的产量。这一知识不仅有助于生物多样性的保护，也支持可持续的食品生产实践。 总之，卵黄生成是支撑许多动物物种生殖的重要生物过程。其重要性超越了单纯的卵子生产；它是未来世代生存和发展的关键因素。随着我们继续探索生殖生物学的复杂性，卵黄生成的研究无疑将继续成为一个重要的研究领域，为生命的微妙平衡和维持生命的复杂机制提供深刻见解。