phototaxis

简明释义

英[ˌfəʊtəʊˈtæksɪs]美[ˌfoʊtoʊˈtæksɪs;ˌfoʊtəˈtæksɪs

n. [生物] 趋光性

英英释义

单词用法

同义词

反义词

例句

1.The Chlamydomonas are of particular interest because they exhibit phototaxis-an ability to orient themselves toward light sources to aid in photosynthesis.

对衣藻的关注是由于它具有趋光性——一种能够跟随光源定位自身以帮助光合作用的能力。

2.Also, the utility model utilizes the mosquito phototaxis and the attractive force of the fan after the fan rotates to bring the mosquitoes into the fan blade to kill.

利用蚊虫向光特性和电扇旋转后的吸引力将蚊虫引进扇叶内杀灭。

3.Gametes showed intensive positive phototaxis, after syngamy, motile zygotes showed negative phototaxis.

其配子具有明显的正趋光性，合子具有负趋光性。

4.Taking advantage of phototaxis of insects, the electric fly-flap can even kill mosquitoes and flies even in day time.

电蚊蝇纱窗利用蚊蝇趋光的 习性，在白天也能杀灭室内的蚊蝇。

5.However, U. arcuata showed positive phototaxis in red, blue and yellow light, which become more sensitive under red light than blue and yellow.

弯弓蚌螨在三种颜色的光下均表现为正趋光性，对于红光的趋光性反应较黄、蓝光更为敏感；

6.Moths are killed by fully utilizing the phototaxis of the moths and the power grid, and the killed moths fall into a pond and are taken as the nutriment for pond life.

本实用新型充分利用蛾虫的趋光性和电网将蛾虫诱杀，诱杀后的蛾虫落入池塘做为池塘生物的养料。

7.Scientists invented a mosquito-repellent device using mosquito's phototaxis.

蚊子的趋光性，专家发明了一种灭蚊器。

8.The background light influences phototaxis of round scad on the horizontal gradient condition, the influence weakens with the increasing light intensity.

背景光对兰圆鲹在水平光梯度内之趋光性有影响。随着光强的提高则影响有减弱趋势。

9.Moths are killed by fully utilizing the phototaxis of the moths and the power grid, and the killed moths fall into a pond and are taken as the nutriment for pond life.

本实用新型充分利用蛾虫的趋光性和电网将蛾虫诱杀，诱杀后的蛾虫落入池塘做为池塘生物的养料。

10.The phototaxis behavior of certain algae helps them optimize light absorption for growth.

某些藻类的光向性行为帮助它们优化光吸收以促进生长。

11.Researchers study phototaxis in microorganisms to understand how they navigate their environments.

研究人员研究微生物的光向性，以了解它们如何在环境中导航。

12.The phototaxis of certain plants allows them to grow towards sunlight for optimal photosynthesis.

某些植物的光向性使它们能够朝向阳光生长，以实现最佳光合作用。

13.Many insects exhibit phototaxis, which is their tendency to move towards light.

许多昆虫表现出光向性，即它们倾向于朝向光移动。

14.In a dark room, the phototaxis of moths can be observed as they flutter towards a lamp.

在黑暗的房间里，可以观察到蛾子的光向性，因为它们朝着灯光扑动。

作文

In the fascinating world of biology, one of the most intriguing phenomena is the behavior of organisms in response to light. This phenomenon is known as phototaxis, which refers to the movement of an organism toward or away from a light source. The term is derived from the Greek words 'photo,' meaning light, and 'taxis,' meaning arrangement or order. Understanding phototaxis is essential for comprehending how various species interact with their environment, particularly in terms of survival and reproduction.Many organisms exhibit phototaxis to enhance their chances of survival. For instance, plants utilize this behavior to maximize their exposure to sunlight, which is critical for photosynthesis. When a plant grows towards a light source, it is displaying positive phototaxis. This adaptive behavior allows the plant to optimize its energy production, ultimately supporting its growth and reproduction.On the other hand, some organisms exhibit negative phototaxis, moving away from light. This behavior can be observed in certain species of insects and marine animals. For example, many nocturnal insects are attracted to artificial light sources at night, but they may also seek refuge in darker areas to avoid predation. Understanding these patterns helps researchers develop better pest control strategies and understand ecological dynamics.The study of phototaxis extends beyond simple observations of movement; it delves into the underlying mechanisms that drive these behaviors. In many cases, organisms possess specialized cells or receptors that detect light intensity and direction. In insects, for example, compound eyes are highly sensitive to changes in light, allowing them to navigate effectively in their environments. Similarly, certain microorganisms, such as algae, have evolved light-sensing proteins that enable them to move toward optimal light conditions for photosynthesis.Research into phototaxis has also revealed fascinating insights into the evolutionary adaptations of various species. For instance, the ability to respond to light can influence mating behaviors, feeding habits, and habitat selection. In aquatic environments, many fish species rely on phototaxis to locate food sources or avoid predators. The interplay between light and behavior highlights the intricate relationships within ecosystems and the importance of light as a resource.Moreover, understanding phototaxis has practical implications for human activities. In agriculture, knowledge of how plants respond to light can inform better farming practices, such as optimizing planting layouts or using artificial lighting to enhance crop yields. In urban planning, awareness of how wildlife interacts with artificial light can lead to more wildlife-friendly designs, reducing the negative impacts of urbanization on natural habitats.In conclusion, the concept of phototaxis is a remarkable example of how organisms adapt to their environments through behavioral responses to light. From plants seeking sunlight for photosynthesis to animals navigating their habitats, phototaxis plays a crucial role in the survival and success of countless species. As we continue to explore the complexities of biological interactions, the study of phototaxis remains a vital area of research, shedding light on the intricate connections between organisms and their environments.

在生物学的迷人世界中，生物体对光的反应行为是最引人入胜的现象之一。这个现象被称为光趋向性，指的是生物体朝向或远离光源的运动。这个术语源自希腊语单词“photo”，意为光，以及“taxis”，意为排列或顺序。理解光趋向性对于理解各种物种如何与其环境互动至关重要，特别是在生存和繁殖方面。许多生物表现出光趋向性以增强其生存机会。例如，植物利用这种行为最大化其对阳光的暴露，这对光合作用至关重要。当植物朝向光源生长时，它表现出积极的光趋向性。这种适应性行为使植物能够优化其能量生产，最终支持其生长和繁殖。另一方面，一些生物表现出负光趋向性，即远离光。这种行为可以在某些昆虫和海洋动物中观察到。例如，许多夜间活动的昆虫在晚上被人工光源吸引，但它们也可能寻求在较暗的区域避难，以避免捕食。理解这些模式有助于研究人员制定更好的害虫控制策略，并理解生态动态。对光趋向性的研究不仅限于简单的运动观察；它深入探讨驱动这些行为的基本机制。在许多情况下，生物体具有专门的细胞或受体来检测光的强度和方向。例如，在昆虫中，复眼对光的变化非常敏感，使它们能够有效地在环境中导航。同样，某些微生物，如藻类，已经进化出光感知蛋白，使它们能够朝向最佳光照条件移动。对光趋向性的研究还揭示了各种物种进化适应的迷人见解。例如，响应光的能力可以影响交配行为、觅食习惯和栖息地选择。在水生环境中，许多鱼类依赖光趋向性来寻找食物来源或避开捕食者。光与行为之间的相互作用突显了生态系统内的复杂关系，以及光作为资源的重要性。此外，理解光趋向性对人类活动具有实际意义。在农业中，了解植物如何对光作出反应可以为更好的农业实践提供信息，例如优化种植布局或使用人工照明来提高作物产量。在城市规划中，意识到野生动物如何与人工光互动可以导致更友好的设计，从而减少城市化对自然栖息地的负面影响。总之，光趋向性的概念是生物体如何通过对光的行为反应适应其环境的一个显著例子。从植物寻求光合作用的阳光到动物在栖息地中导航，光趋向性在无数物种的生存和成功中发挥了至关重要的作用。随着我们继续探索生物相互作用的复杂性，对光趋向性的研究仍然是一个重要的研究领域，揭示了生物体与环境之间的复杂联系。