self sterile

简明释义

自花不稔的

英英释义

例句

1.Gardeners often choose self sterile varieties to encourage cross-pollination.

园丁们常常选择自我不育的品种以促进异花授粉。

2.The apple tree is self sterile, requiring another variety for successful fruit production.

苹果树是自我不育的，需要另一种品种才能成功结果。

3.The plant species is known to be self sterile, meaning it cannot fertilize itself.

这种植物种类被认为是自我不育，意味着它无法自我授粉。

4.In a self sterile system, pollen from one flower cannot fertilize its own ovules.

在自我不育的系统中，一个花的花粉无法使其自身的胚珠受精。

5.Some crops are self sterile to promote genetic diversity among plants.

一些农作物是自我不育的，以促进植物间的遗传多样性。

作文

In the world of biology, the term self sterile refers to a condition in which an organism is unable to fertilize itself. This phenomenon can be observed in various species, particularly in plants and some animals. Understanding self sterile mechanisms is crucial for studying reproduction, genetics, and biodiversity. For instance, many flowering plants have developed self sterile traits as a strategy to promote cross-pollination. This genetic trait ensures that plants cannot produce seeds from their own pollen, thereby encouraging genetic diversity within their populations. The advantages of being self sterile are significant. By requiring pollen from another individual for fertilization, these organisms increase the likelihood of genetic variation, which can enhance adaptability and resilience to environmental changes. In contrast, self-fertilizing species may struggle with reduced genetic diversity, making them more vulnerable to diseases and changing climates. Consider the case of the apple tree. Certain varieties of apple trees are self sterile, meaning they need pollen from a different variety to produce fruit. This characteristic not only affects the tree's reproductive success but also has implications for agricultural practices. Farmers must plant compatible apple varieties in proximity to ensure successful pollination and fruit production. This requirement illustrates how self sterile plants can impact agricultural strategies and crop yields.On the other hand, some species have evolved mechanisms to avoid self sterile conditions. For example, certain plants possess both male and female reproductive structures and can self-pollinate under specific circumstances. However, even these species may still benefit from cross-pollination, demonstrating that the evolutionary pressure to maintain genetic diversity is strong.In conclusion, the concept of self sterile plays a vital role in understanding reproductive strategies among various organisms. It highlights the importance of genetic diversity in maintaining healthy populations and ecosystems. As we continue to study these biological processes, we gain insights into the complexities of life and the intricate relationships that sustain it. Whether in natural environments or agricultural settings, recognizing the implications of self sterile traits can lead to better conservation efforts and more effective farming practices. Embracing this knowledge allows us to appreciate the delicate balance of nature and the importance of biodiversity in our world.

在生物学领域，术语自我不育指的是一种生物无法自我授粉的状态。这种现象可以在各种物种中观察到，尤其是在植物和某些动物中。理解自我不育机制对于研究繁殖、遗传学和生物多样性至关重要。例如，许多开花植物发展了自我不育特征，作为促进异花授粉的策略。这一遗传特征确保植物无法使用自己的花粉产生种子，从而鼓励其种群内的遗传多样性。成为自我不育的优势是显著的。通过要求来自其他个体的花粉进行授粉，这些生物增加了遗传变异的可能性，这可以增强适应性和对环境变化的抵抗力。相比之下，自我授粉的物种可能会因遗传多样性减少而面临困难，使它们更容易受到疾病和气候变化的影响。考虑苹果树的例子。某些品种的苹果树是自我不育的，这意味着它们需要来自不同品种的花粉才能结果。这一特性不仅影响树木的繁殖成功，还对农业实践产生了影响。农民必须将兼容的苹果品种种植在相近的位置，以确保成功授粉和果实生产。这一要求说明了自我不育植物如何影响农业策略和作物产量。另一方面，一些物种已经进化出避免自我不育条件的机制。例如，某些植物同时具备雄性和雌性生殖结构，并在特定情况下能够自我授粉。然而，即使是这些物种也可能仍然受益于异花授粉，表明维持遗传多样性的进化压力是强大的。总之，自我不育的概念在理解各种生物的繁殖策略中起着至关重要的作用。它突显了遗传多样性在维持健康种群和生态系统中的重要性。随着我们继续研究这些生物过程，我们获得了对生命复杂性及其维持精密关系的深入认识。无论是在自然环境还是农业环境中，认识到自我不育特征的影响可以带来更好的保护工作和更有效的农业实践。接受这一知识使我们能够欣赏自然的微妙平衡以及生物多样性在我们世界中的重要性。