achene

简明释义

英[əˈkiːn]美[əˈkin]

n. [植] 瘦果

英英释义

单词用法

同义词

反义词

例句

1.It is therefore suggested that the relatively high level of ABA in the pericarp and testa is the major cause of the achene dormancy.

因此，可以认为现代月季种子休眠的主要原因是果皮和种皮内含有较高水平的ABA。

2.Samara a nut or achene whose pericarp is extended to form a wing for wind dispersal, e. g. Ash (fraxinus excelsior).

翅果：指坚果或瘦果中果皮延伸成翼状，以利于风媒传播的果实类型。如白蜡树的果实(欧洲白蜡树)。

3.It is described here as an achene because it is indehiscent, as opposed to a typical, dehiscent follicle.

它已经把这里描述为一瘦果，因为它不裂，与一典型，开裂的蓇葖果相反。

4.Samara a nut or achene whose pericarp is extended to form a wing for wind dispersal, e. g. ash ( fraxinus excelsior )

翅果：指坚果或瘦果中果皮延伸成翼状，以利于风媒传播的果实类型。如白蜡树的果实（欧洲白蜡树） 。

5.Ovary and achene body pubescent.

子房和瘦果身体短柔毛。

6.It is therefore suggested that the relatively high level of ABA in the pericarp and testa is the major cause of the achene dormancy.

因此，可以认为现代月季种子休眠的主要原因是果皮和种皮内含有较高水平的ABA。

7.The achenes of the buttercup are often overlooked during foraging.

在觅食时，常常忽视了毛茛的瘦果。

8.In botany, an achene is a small, dry, one-seeded fruit that does not open to release its seed.

在植物学中，瘦果是一种小型的、干燥的、单种子的果实，不会打开释放种子。

9.When you bite into a strawberry, you're not eating the true fruit; those tiny bits on the surface are achenes.

当你咬一口草莓时，你并没有吃到真正的果实；表面上的那些小颗粒是瘦果。

10.The achene of the dandelion is designed to be carried by the wind.

蒲公英的瘦果被设计成可以随风飘散。

11.The sunflower's seeds are actually achenes, which are a type of dry fruit.

向日葵的种子实际上是瘦果，一种干果。

作文

In the vast world of botany, understanding plant structures is crucial for both enthusiasts and professionals alike. One fascinating type of fruit that deserves attention is the achene, which is a small, dry, one-seeded fruit that does not open to release its seed. This unique characteristic distinguishes it from other types of fruits, such as berries or drupes. The achene is often found in various plants, particularly in the family Asteraceae, which includes sunflowers and dandelions. The structure of an achene is quite simple yet effective. Each achene typically consists of a single seed attached to the pericarp, or the outer layer of the fruit. This attachment allows the seed to remain protected until conditions are right for germination. For instance, when a dandelion flower matures, it produces numerous achenes that are equipped with a tuft of hair, enabling them to be carried by the wind. This adaptation is vital for the dispersal of the seeds over a wide area, increasing the chances of successful colonization in new environments.Moreover, the achene plays an essential role in the life cycle of many plants. When conditions are favorable, the achene can germinate and develop into a new plant. This process often occurs in spring when the soil warms up and moisture levels are adequate. Understanding how achenes function helps botanists and ecologists appreciate the intricate relationships between plants and their environments. In addition to their biological significance, achenes also have economic importance. Many crops, such as sunflower seeds and strawberries, produce achenes that are harvested for human consumption. The sunflower, for example, is cultivated for its seeds, which are not only a popular snack but also a source of oil. The achene thus serves as a vital component in agriculture and food production, making it essential for sustaining human diets. Furthermore, studying achenes can provide insights into ecological dynamics. The ability of these fruits to disperse seeds effectively influences plant community structures. For instance, areas with abundant wind or animal activity may experience different plant compositions due to the successful dispersal of achenes. This factor can lead to greater biodiversity and resilience within ecosystems, highlighting the importance of achenes in maintaining ecological balance.In conclusion, the achene is more than just a simple fruit; it is a remarkable structure that plays a significant role in plant reproduction, ecology, and agriculture. By understanding achenes, we gain valuable insights into the complexities of plant life and the interconnectedness of ecosystems. Whether you are a student of botany or simply an admirer of nature, appreciating the achene opens a window into the wonders of the plant kingdom, reminding us of the beauty and intricacy of life on Earth.

在植物学的广阔世界中，理解植物结构对于爱好者和专业人士都至关重要。有一种迷人的果实类型值得关注，那就是果实，它是一种小型、干燥、单籽的果实，不会打开以释放其种子。这一独特的特征使其与其他类型的果实，如浆果或核果，区别开来。果实通常在各种植物中发现，尤其是在菊科（Asteraceae）中，包括向日葵和蒲公英。果实的结构相当简单但有效。每个果实通常由一个种子和果皮（即果实的外层）组成。这种附着使种子能够保持保护状态，直到条件适合发芽。例如，当蒲公英花成熟时，它会产生许多带有绒毛的小果实，使它们能够随风传播。这种适应性对种子的广泛分散至关重要，从而增加了在新环境中成功定殖的机会。此外，果实在许多植物的生命周期中发挥着重要作用。当条件适宜时，果实可以发芽并发展成新的植物。这个过程通常发生在春天，当土壤变暖且水分水平充足时。理解果实的功能有助于植物学家和生态学家欣赏植物与其环境之间复杂的关系。除了生物学意义外，果实还有经济重要性。许多作物，如向日葵种子和草莓，生产的果实被收获供人类食用。例如，向日葵是为了其种子而栽培的，这些种子不仅是受欢迎的零食，也是油的来源。因此，果实成为农业和食品生产的重要组成部分，对于维持人类饮食至关重要。此外，研究果实可以提供对生态动态的见解。这些果实有效的种子传播能力影响植物群落结构。例如，风或动物活动丰富的地区可能由于果实的成功传播而经历不同的植物组成。这一因素可能导致更大的生物多样性和生态系统的韧性，突显了果实在维持生态平衡中的重要性。总之，果实不仅仅是一种简单的果实；它是一种非凡的结构，在植物繁殖、生态和农业中发挥着重要作用。通过理解果实，我们获得了对植物生命复杂性的宝贵见解，以及生态系统之间的相互联系。无论您是植物学的学生还是自然的欣赏者，欣赏果实都为我们打开了通往植物王国奇迹的窗口，提醒我们地球上生命的美丽和复杂性。