juvenile hormone

简明释义

保幼激素

英英释义

例句

1.In bees, juvenile hormone plays a significant role in determining whether a larva becomes a queen or a worker.

在蜜蜂中，幼虫激素在决定幼虫成为女王或工蜂方面起着重要作用。

2.Researchers are studying how juvenile hormone affects the behavior of certain insect species.

研究人员正在研究幼虫激素如何影响某些昆虫物种的行为。

3.The application of synthetic juvenile hormone analogs can help control pest populations.

合成幼虫激素类似物的应用可以帮助控制害虫种群。

4.The role of juvenile hormone in insect development is crucial for regulating growth and metamorphosis.

在昆虫发育中，幼虫激素的作用对于调节生长和变态至关重要。

5.Elevated levels of juvenile hormone can prevent insects from maturing into adults.

升高的幼虫激素水平可以阻止昆虫成熟为成虫。

作文

Juvenile hormone (青少年激素) is a crucial biochemical compound found in many insects and some other arthropods. It plays a significant role in regulating development, growth, reproduction, and other physiological processes. Understanding the function of juvenile hormone is essential for researchers who study insect life cycles and behaviors. This hormone is primarily produced by the corpora allata, a pair of glands located in the insect's head. The presence of juvenile hormone in an insect's body determines whether it will undergo metamorphosis or continue to grow as a larva. When the levels of juvenile hormone are high, the insect remains in its larval stage, allowing it to grow and accumulate energy. This is particularly important for species that require multiple molts before reaching maturity. Conversely, when the levels of juvenile hormone drop, it triggers the process of metamorphosis, leading to the transformation into a pupa and eventually an adult insect. This hormonal regulation is vital for ensuring that insects develop at the appropriate times, aligning their growth with environmental conditions and food availability.In addition to its role in development, juvenile hormone also influences reproductive behaviors in adult insects. For instance, in many species, high levels of this hormone can stimulate the production of eggs, while lower levels may inhibit reproductive functions. This dual role highlights the importance of juvenile hormone not just in the life cycle of insects but also in their ability to adapt to changing environments.Research on juvenile hormone has significant implications for agriculture and pest control. By understanding how this hormone works, scientists can develop targeted strategies to manage pest populations more effectively. For example, disrupting the synthesis or action of juvenile hormone could prevent pests from maturing or reproducing, thereby reducing their numbers without harming beneficial insects. This approach is particularly appealing in an era where chemical pesticides are increasingly scrutinized for their environmental impact.Furthermore, the study of juvenile hormone extends beyond insects. Similar compounds have been found in other organisms, suggesting that the regulatory mechanisms involving hormones are conserved across different species. This opens up exciting avenues for comparative biology, allowing scientists to explore how hormonal regulation affects development and behavior in a broader context.In conclusion, juvenile hormone is a fundamental component of insect physiology, influencing growth, development, and reproduction. Its significance in both ecological and agricultural contexts cannot be overstated. As research continues to uncover the complexities of hormonal regulation in insects, our understanding of juvenile hormone will undoubtedly deepen, providing insights that could lead to innovative solutions for managing insect populations and enhancing our knowledge of biological processes. Ultimately, the study of juvenile hormone exemplifies the intricate relationship between hormones and the life cycles of organisms, emphasizing the need for continued exploration in this fascinating field of science.

青少年激素是许多昆虫和其他节肢动物中发现的重要生化化合物。它在调节发育、成长、繁殖和其他生理过程中发挥着重要作用。理解青少年激素的功能对于研究昆虫生命周期和行为的研究人员至关重要。这种激素主要由位于昆虫头部的一对腺体——颅腺产生。青少年激素在昆虫体内的存在决定了它是否会经历变态或继续作为幼虫生长。当青少年激素水平较高时，昆虫将保持在幼虫阶段，从而允许它继续生长并积累能量。这对需要多次蜕皮才能成熟的物种尤其重要。相反，当青少年激素水平下降时，它会触发变态过程，导致昆虫转变为蛹，最终成为成虫。这种激素调节对于确保昆虫在适当的时间发育至关重要，使它们的生长与环境条件和食物供应相一致。除了在发育中的作用外，青少年激素还影响成虫昆虫的繁殖行为。例如，在许多物种中，高水平的这种激素可以刺激卵子的产生，而较低的水平可能抑制繁殖功能。这种双重作用突显了青少年激素在昆虫生命周期中的重要性，以及它们适应不断变化环境的能力。对青少年激素的研究对农业和害虫控制具有重要意义。通过了解这种激素的工作原理，科学家们可以制定更有效的针对性策略来管理害虫种群。例如，破坏青少年激素的合成或作用可能会阻止害虫成熟或繁殖，从而减少它们的数量，而不会对有益昆虫造成伤害。这种方法在化学农药日益受到环境影响审查的时代尤为吸引人。此外，青少年激素的研究不仅限于昆虫。类似的化合物已在其他生物中发现，这表明涉及激素的调节机制在不同物种之间是保守的。这为比较生物学开辟了令人兴奋的途径，使科学家能够探索激素调节如何影响更广泛的发育和行为。总之，青少年激素是昆虫生理学的基本组成部分，影响着生长、发育和繁殖。它在生态和农业背景下的重要性不容小觑。随着研究继续揭示昆虫激素调节的复杂性，我们对青少年激素的理解无疑将加深，提供可能导致创新解决方案的新见解，以管理昆虫种群并增强我们对生物过程的知识。最终，对青少年激素的研究体现了激素与生物体生命周期之间复杂关系的精妙，强调了在这一迷人科学领域继续探索的必要性。