microspores

简明释义

英[ˈmaɪkrəspɔːz]美[ˈmaɪkroʊspɔrz]

n. [植]小孢子（microspore 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Finally, 92.6%-94.8% of microspores could develop into normal and stainable pollen grains.

最终有92.6%—94.8%的小孢子能发育成形态正常、染色能力强的成熟花粉粒。

2.Microspores further develop to form normal pollen.

小孢子进一步发育形成正常的花粉粒。

3.The mutant has small siliques with no seed set. Cytological observation showed that during anther development, the microspores ruptured and no pollen grains formed in the mutant anther locules.

细胞学观察和扫描电镜结果表明，突变体花药发育过程中， 花药中小孢子外壁异常、破裂， 最后没有花粉形成。

4.At the late stage of the sporogenous cells, mother pollen cells and microspores, the vacuoles remarkably increased in quantity or size.

在次生造孢细胞、花粉母细胞和小孢子后期都有液泡数量明显增加或体积增大的过程。

5.The result indicated that the microspores of all types of male sterile maize displayed degradation of nuclear matters, just the time was different.

结果表明，几种不育类型小孢子均表现核物质的降解，只是降解的时期不同。

6.The development processes of anthers and microspores of C-cytoplasmic male-sterile lines and its maintainers in corn were observed and compared by the light and the electron microscope.

利用光学和电子显微镜对玉米C型胞质雄性不育系和保持系的花药与小孢子发育过程进行对比观察。

7.After the meiosis, however, the microspores began to degenerate to become blighted and wrinkled ones, starting from the deforming of their walls and concentration of their protoplasm.

减数分裂后，小孢子开始退化，首先是小孢子壁开始变形，随后原生质浓缩，形成干秕、皱缩的小孢子。

8.The results showed that microspore mother cells and tetrad microspores accumulated numerous lipids but no starches.

结果发现小孢子母细胞和四分体小孢子中积累了一些脂滴，但没有淀粉。

9.Before that, most microspores formed vacuoles. At last there left empty cavities.

败育前，小孢子大量液泡化，最后只剩空腔。

10.In ferns, 微孢子 develop into male gametophytes.

在蕨类植物中，微孢子发育成雄配子体。

11.Scientists are examining the viability of 微孢子 in different environmental conditions.

科学家正在研究不同环境条件下微孢子的生存能力。

12.The study focused on how 微孢子 contribute to genetic diversity.

这项研究关注微孢子如何促进遗传多样性。

13.The plant reproduces by releasing 微孢子 into the air.

这种植物通过释放微孢子到空气中进行繁殖。

14.During the life cycle of mosses, 微孢子 play a crucial role.

在苔藓的生命周期中，微孢子扮演着至关重要的角色。

作文

In the fascinating world of botany, the study of plant reproduction plays a crucial role in understanding how various species thrive and evolve. One of the key components in this process is the formation of microspores, which are essential for the development of male gametophytes in seed plants. These tiny structures are produced through a process called meiosis, where diploid microsporocytes undergo division to yield haploid microspores. This transformation is vital as it sets the stage for fertilization and the continuation of plant life.The significance of microspores extends beyond mere reproduction; they also contribute to genetic diversity within plant populations. When conditions are favorable, these microspores develop into pollen grains, which carry male gametes to female ovules during pollination. This transfer is often facilitated by external agents such as wind, water, or animals, showcasing the intricate relationships between plants and their environment.Moreover, the study of microspores has practical implications in agriculture and horticulture. Understanding how these structures function can lead to advancements in crop production and the development of hybrid plants with desirable traits. For instance, researchers can manipulate the conditions under which microspores develop, thereby enhancing the fertility and viability of pollen grains. This knowledge is particularly important in the context of food security, as it allows for the cultivation of resilient plant varieties that can withstand environmental stresses.In addition to their role in reproduction, microspores also serve as a model for studying cellular processes and evolutionary biology. By examining the characteristics and behaviors of microspores, scientists can gain insights into how plants adapt to their surroundings over time. This research can inform conservation efforts aimed at preserving endangered plant species and maintaining biodiversity in ecosystems.Furthermore, the exploration of microspores is not limited to terrestrial plants. Aquatic plants also produce these structures, which are adapted to their unique environments. The diversity of microspores across different plant species highlights the complexity of reproduction in the plant kingdom and emphasizes the importance of studying these microscopic entities.In conclusion, microspores are more than just small reproductive units; they are fundamental to the survival and evolution of plant species. Their role in genetic diversity, agricultural advancements, and ecological research underscores their significance in both natural and human-modified environments. As we continue to explore the intricacies of plant biology, the understanding of microspores will undoubtedly remain a focal point for future studies. The ongoing research into these tiny yet powerful structures promises to unveil new knowledge that could benefit agriculture, conservation, and our overall understanding of life on Earth.

在植物学的迷人世界中，植物繁殖的研究在理解各种物种如何生存和进化方面起着至关重要的作用。这个过程中一个关键的组成部分是微孢子的形成，它们对于种子植物雄性配子体的发展至关重要。这些微小的结构是通过一种称为减数分裂的过程产生的，其中二倍体的微孢子母细胞经历分裂以产生单倍体的微孢子。这种转变是至关重要的，因为它为受精和植物生命的延续奠定了基础。微孢子的重要性不仅仅体现在繁殖上；它们还为植物种群内的遗传多样性做出贡献。当条件适宜时，这些微孢子发育成花粉粒，携带雄性配子在授粉期间传递给雌性胚珠。这种转移通常由风、水或动物等外部因素促进，展示了植物与环境之间的复杂关系。此外，微孢子的研究在农业和园艺中具有实际意义。了解这些结构的功能可以推动作物生产的进步和具有理想特征的杂交植物的开发。例如，研究人员可以操纵微孢子发展的条件，从而增强花粉粒的生育力和活力。这一知识在粮食安全的背景下尤为重要，因为它允许培养能够抵御环境压力的坚韧植物品种。除了在繁殖中的作用外，微孢子还作为研究细胞过程和进化生物学的模型。通过检查微孢子的特征和行为，科学家可以深入了解植物如何随着时间的推移适应其环境。这项研究可以为保护努力提供信息，旨在保护濒危植物物种并维护生态系统的生物多样性。此外，微孢子的探索不仅限于陆生植物。水生植物也会产生这些结构，这些结构适应于其独特的环境。不同植物物种中微孢子的多样性突显了植物王国中繁殖的复杂性，并强调了研究这些微观实体的重要性。总之，微孢子不仅仅是小型生殖单位；它们是植物物种生存和进化的基础。它们在遗传多样性、农业进步和生态研究中的作用强调了它们在自然和人类改造环境中的重要性。随着我们继续探索植物生物学的复杂性，对微孢子的理解无疑将继续成为未来研究的重点。对这些微小而强大的结构的持续研究承诺揭示新的知识，这可能有利于农业、保护以及我们对地球上生命的整体理解。