funicle
简明释义
n. 纤维;脐带;细绳
英英释义
A funicle is a small stalk or filament that connects an ovule to the placenta in a plant's ovary. | 小茎或纤维,连接植物子房中的胚珠与胎座。 |
单词用法
花的细丝 | |
细丝连接 | |
细丝和胚珠 | |
细丝长度 |
同义词
茎 | 这个小柄将种子与胚珠连接起来。 |
反义词
严肃 | 这个情况的严肃性不能被忽视。 | ||
重力 | 他以一种严肃的态度对待这个任务。 |
例句
1.When ovule orientation is orthotropous the chalaza corresponds to the point where the funicle is attached but in anatropous and campylotropous ovules the chalaza is some distance from the funicle .
当胚珠的方向是直生胚珠时,合点和珠柄连成一条直线,当胚珠是倒生胚珠或弯生胚珠时,合点和珠柄之间有一定的距离。
2.When ovule orientation is orthotropous the chalaza corresponds to the point where the funicle is attached but in anatropous and campylotropous ovules the chalaza is some distance from the funicle .
当胚珠的方向是直生胚珠时,合点和珠柄连成一条直线,当胚珠是倒生胚珠或弯生胚珠时,合点和珠柄之间有一定的距离。
3.Botanists often study the funicle to understand seed development processes.
植物学家常常研究funicle以了解种子发育过程。
4.When examining the flower anatomy, one can easily identify the funicle attached to the ovules.
在检查花的解剖结构时,可以很容易地识别出附着在胚珠上的funicle。
5.The funicle is essential for the transfer of nutrients from the parent plant to the developing seed.
对于从母植物向发育中的种子转移营养物质来说,funicle是必不可少的。
6.In botany, the funicle serves as a vital connection between the ovule and the placenta.
在植物学中,funicle作为胚珠与胎座之间的重要连接。
7.The structure of the seed is held together by a small thread-like part known as the funicle.
种子的结构由一个称为funicle的小线状部分连接在一起。
作文
In the realm of botany, many terms are used to describe the intricate structures and functions of plants. One such term is funicle, which refers to a slender stalk that connects the ovule to the placenta in seed plants. Understanding the role of the funicle is essential for comprehending how seeds develop and disperse. The funicle plays a crucial role during fertilization, as it facilitates the transport of nutrients from the parent plant to the developing ovule. Without this connection, the ovule would lack the necessary resources to grow into a viable seed. The significance of the funicle extends beyond mere nutrient transfer; it also influences the positioning of the seeds within the fruit. By anchoring the ovule securely to the placenta, the funicle ensures that the seeds are properly aligned for optimal development and eventual dispersal. This alignment can affect how seeds are distributed in the environment, impacting plant reproduction and survival. Moreover, the structure of the funicle can vary significantly among different plant species. In some plants, the funicle may be short and stout, while in others, it may be long and slender. This variation can be attributed to evolutionary adaptations that optimize seed development and dispersal strategies. For instance, plants that rely on wind for seed dispersal may have longer funicles to ensure that their seeds can be carried away from the parent plant more effectively. In addition to its biological significance, the funicle also highlights the complexity of plant reproductive systems. The study of the funicle and its function provides insights into the evolutionary relationships between different plant species. By examining the variations in funicle structure and function, botanists can infer how certain plants have adapted to their environments over time. Furthermore, understanding the funicle can have practical implications for agriculture and horticulture. Knowledge about how the funicle affects seed development can inform breeding programs aimed at producing more resilient and productive crops. For example, by selecting for traits associated with optimal funicle length and strength, farmers may be able to enhance seed viability and improve yields. In conclusion, the funicle is a vital component of plant reproductive biology that serves multiple functions, from nutrient transport to seed positioning. Its study not only enriches our understanding of plant development but also offers valuable insights for agricultural practices. As we continue to explore the intricacies of plant life, the funicle stands out as a remarkable example of nature's ingenuity and adaptability. Through further research and observation, we can continue to uncover the mysteries surrounding this slender yet significant structure, ultimately enhancing our appreciation for the complexity of the natural world.
在植物学领域,许多术语用于描述植物的复杂结构和功能。其中一个术语是funicle,指的是连接种子植物中胚珠与胎座的细长茎。理解funicle的作用对于理解种子的发育和传播至关重要。funicle在受精过程中发挥着关键作用,因为它促进了营养物质从母植物到发育中的胚珠的运输。如果没有这种连接,胚珠将缺乏成长为可行种子所需的资源。funicle的重要性不仅仅体现在营养转移上;它还影响种子在果实中的定位。通过将胚珠牢固地固定在胎座上,funicle确保种子能够正确对齐,以实现最佳的发育和最终的传播。这种对齐可能会影响种子在环境中的分布,从而影响植物的繁殖和生存。此外,funicle的结构在不同植物物种之间可能显著不同。在某些植物中,funicle可能短而粗,而在其他植物中,它可能长而细。这种变化可以归因于进化适应,优化种子的发育和传播策略。例如,依赖风传播种子的植物可能具有较长的funicle,以确保它们的种子能够更有效地被带离母植物。除了其生物学意义外,funicle还突显了植物繁殖系统的复杂性。研究funicle及其功能提供了有关不同植物物种之间进化关系的见解。通过检查funicle结构和功能的变化,植物学家可以推断出某些植物如何随着时间的推移适应其环境。此外,理解funicle对农业和园艺也具有实际意义。关于funicle如何影响种子发育的知识可以为旨在生产更具韧性和高产作物的育种计划提供信息。例如,通过选择与最佳funicle长度和强度相关的特征,农民可能能够增强种子的生存能力并提高产量。总之,funicle是植物生殖生物学中的一个重要组成部分,具有多种功能,从营养运输到种子定位。它的研究不仅丰富了我们对植物发育的理解,还为农业实践提供了宝贵的见解。随着我们继续探索植物生命的复杂性,funicle作为自然聪明才智和适应性的杰出例子脱颖而出。通过进一步的研究和观察,我们可以继续揭示围绕这一细长而重要结构的奥秘,最终增强我们对自然世界复杂性的欣赏。