sporophyte

简明释义

英[ˈspɒrəfaɪt;ˈspɔː-]美[ˈspɑːrəˌfaɪt]

n. [植] 孢子体；孢子形成体

英英释义

单词用法

同义词

反义词

例句

1.Examples include male and female plants in dioecious species aerial and submerged leaves alternation of gametophyte and sporophyte stages of a life cycle and mesophyll and bundle-sheath chloroplasts.

例如在雌雄异株物种中的雌性植物和雄性植物，气生的和被水浸没的叶片，生活史中的配子体与孢子体的交替，叶肉和维管束鞘叶绿体等。

2.The spore morphology of Pteris is stable, and the difference between species is distinct , but the features of spore and sporophyte are not related.

凤尾蕨属植物孢子的形态稳定，种间差异明显，但孢子形态特征与孢子体的形态特征是不相关的。

3.Sporogonium the sporophyte generation in mosses and liverworts. it develops from the zygote and comprises the foot, seta, and capsule. the sporogonium is parasitic on the gametophyte generation.

孢子体：为苔藓和地钱的孢子体世代具有。由受精卵发育而来，包括基足、柄和孢蒴。孢子体是寄生在配子体上的。

4.The gametophyte and infant sporophyte morphological development of S. grevilleoides represented very different features on different culture substrata.

不同基质上中国蕨配子体和幼孢子体生长发育存在差异，尤其是心形原叶体的形态差别明显；

5.Examples include male and female plants in dioecious species aerial and submerged leaves alternation of gametophyte and sporophyte stages of a life cycle and mesophyll and bundle-sheath chloroplasts.

例如在雌雄异株物种中的雌性植物和雄性植物，气生的和被水浸没的叶片，生活史中的配子体与孢子体的交替，叶肉和维管束鞘叶绿体等。

6.If such gametophytes produce fertile gametes, the resulting sporophyte is then tetraploid, and large polyploid series may subsequently be developed.

如果这种配子体能够产生可育的配子，那么形成的孢子体通常是四倍体，这样就可以得到大量的多倍体。

7.The life cycle of ferns includes a dominant sporophyte 孢子体 stage that produces spores.

蕨类植物的生命周期包括一个以sporophyte 孢子体为主的阶段，产生孢子。

8.In mosses, the sporophyte 孢子体 is usually found attached to the gametophyte.

在苔藓中，sporophyte 孢子体 通常附着在配子体上。

9.During the reproduction process, the sporophyte 孢子体 releases spores into the environment.

在繁殖过程中，sporophyte 孢子体 将孢子释放到环境中。

10.The sporophyte 孢子体 generation is diploid, meaning it has two sets of chromosomes.

sporophyte 孢子体 代是二倍体，意味着它有两套染色体。

11.The structure of the sporophyte 孢子体 can vary greatly among different plant species.

sporophyte 孢子体 的结构在不同植物种类之间可能有很大差异。

作文

In the fascinating world of botany, understanding the life cycle of plants is crucial for appreciating their complexity and diversity. One of the key stages in the plant life cycle is the formation of the sporophyte, which plays a vital role in the reproduction of many plant species. The sporophyte (孢子体) is the diploid phase of the plant life cycle, which means it contains two sets of chromosomes, one from each parent. This stage is responsible for producing spores through a process known as meiosis.The sporophyte develops from the fertilization of gametes, which are produced by the haploid phase of the plant known as the gametophyte. In many plants, especially those in the group of angiosperms or flowering plants, the sporophyte is the dominant and most recognizable form. It typically consists of the stem, leaves, and roots, forming the structure we commonly associate with plants.One interesting aspect of the sporophyte is its ability to adapt to various environmental conditions. For instance, in ferns, the sporophyte can thrive in moist, shaded areas where the gametophyte is also found. However, it is the sporophyte that is more resilient and can survive in a wider range of habitats. This adaptability is crucial for the survival of the species, especially in changing climates.Moreover, the sporophyte phase can vary greatly among different plant groups. In mosses, for example, the sporophyte is often a slender stalk that grows from the gametophyte. It is usually dependent on the gametophyte for nutrition, highlighting a unique relationship between these two phases. In contrast, in flowering plants, the sporophyte is independent and carries out photosynthesis to sustain itself.The significance of the sporophyte extends beyond just its role in reproduction. It also contributes to the genetic diversity of plant populations. By producing numerous spores, the sporophyte ensures that a variety of genetic combinations can emerge, increasing the chances of survival in diverse environments. This genetic variation is essential for the evolution of plant species over time.Additionally, studying the sporophyte can provide valuable insights into plant evolution and ecology. Understanding how different plants have adapted their sporophyte structures and functions can help scientists predict how they might respond to environmental changes. This knowledge is particularly important in the context of climate change, where many plant species are facing unprecedented challenges.In conclusion, the sporophyte (孢子体) is a fundamental aspect of the plant life cycle that deserves greater recognition. Its role in reproduction, adaptation, and genetic diversity underscores the importance of this stage in the broader context of botany. As we continue to explore the intricacies of plant life, the study of the sporophyte will remain a vital area of research, shedding light on the complexities of nature and the resilience of life on Earth.