proplastid

简明释义

英[prəʊˈplæstɪd]美[proʊˈplæstɪd]

n. [植] 前质体，原质体

英英释义

单词用法

同义词

反义词

例句

1.Fine fibrils of proplastid were observed in electronic less dense region.

在电子密度低的区域能观察到前质体的纤维丝。

2.Fine fibrils of proplastid were observed in electronic less dense region.

在电子密度低的区域能观察到前质体的纤维丝。

3.In non-photosynthetic tissues, proplastids 前质体 can develop into amyloplasts for starch storage.

在非光合组织中，proplastids 前质体 可以发育成淀粉体以储存淀粉。

4.During the early stages of development, cells differentiate into proplastids 前质体 before becoming specialized organelles.

在发育的早期阶段，细胞分化为 proplastids 前质体，然后变成特化的细胞器。

5.In plant cells, a proplastid 前质体 is the precursor to chloroplasts.

在植物细胞中，proplastid 前质体 是叶绿体的前体。

6.Researchers are investigating the role of proplastids 前质体 in plant cell differentiation.

研究人员正在调查 proplastids 前质体 在植物细胞分化中的作用。

7.The study showed that proplastids 前质体 can give rise to other plastids under certain conditions.

研究表明，proplastids 前质体 在某些条件下可以生成其他质体。

作文

In the study of plant biology, understanding the various components of plant cells is crucial. One such component is the proplastid, which plays a significant role in the development of plastids within plant cells. Plastids are essential organelles that are involved in various functions, including photosynthesis, storage of products, and the synthesis of important molecules. The proplastid is considered the precursor to these plastids and is especially prominent in the early stages of plant cell development.The proplastid is typically found in meristematic tissues, where cells are actively dividing. These organelles are undifferentiated and possess the potential to develop into different types of plastids, such as chloroplasts, chromoplasts, and amyloplasts. Chloroplasts are vital for photosynthesis, as they contain chlorophyll, which captures light energy. Chromoplasts are responsible for the pigmentation in fruits and flowers, while amyloplasts store starch, an important energy source for plants.The transformation from a proplastid to a fully functional plastid is influenced by various environmental factors, including light, temperature, and the developmental stage of the plant. For instance, when exposed to light, a proplastid can differentiate into a chloroplast, enabling the plant to perform photosynthesis. This process is crucial for the plant's growth and survival, as it allows the conversion of light energy into chemical energy, which sustains the plant's metabolic activities.Moreover, the study of proplastid development is not only important for understanding plant physiology but also has implications for agriculture and biotechnology. By manipulating the conditions that affect proplastid differentiation, scientists can enhance crop yields and improve the nutritional quality of plants. For example, increasing the efficiency of chloroplast formation could lead to more effective photosynthesis, resulting in faster growth rates and higher biomass production.In addition, research on proplastid can provide insights into how plants adapt to changing environments. Understanding how these organelles respond to stress factors, such as drought or extreme temperatures, can help in developing resilient plant varieties that can withstand adverse conditions. This is particularly important in the context of climate change, where many crops face increased challenges due to shifting weather patterns.In conclusion, the proplastid is a fundamental organelle in plant cells that serves as a precursor to various plastids. Its ability to differentiate into specialized plastids underlines its importance in plant development and function. By studying proplastid and the factors influencing its transformation, researchers can gain valuable knowledge that can be applied to improve agricultural practices and enhance food security. The exploration of proplastid not only deepens our understanding of plant biology but also opens up new avenues for innovation in plant science.

在植物生物学的研究中，理解植物细胞的各种组成部分至关重要。其中一个组成部分是前质体（proplastid），它在植物细胞的质体发育中发挥着重要作用。质体是参与多种功能的重要细胞器，包括光合作用、产品储存和重要分子的合成。前质体（proplastid）被认为是这些质体的前体，尤其在植物细胞发育的早期阶段显得尤为突出。前质体（proplastid）通常存在于分生组织中，在这些组织中，细胞正处于活跃分裂状态。这些细胞器是未分化的，具有发展成不同类型质体的潜力，如叶绿体、色素体和淀粉体。叶绿体对光合作用至关重要，因为它们含有叶绿素，能够捕获光能。色素体负责果实和花朵中的色素，而淀粉体则储存淀粉，这是一种重要的植物能量来源。从前质体（proplastid）转变为完全功能的质体受到多种环境因素的影响，包括光照、温度和植物的发育阶段。例如，当暴露于光线下时，前质体（proplastid）可以分化为叶绿体，使植物能够进行光合作用。这个过程对植物的生长和生存至关重要，因为它允许将光能转化为化学能，从而维持植物的代谢活动。此外，研究前质体（proplastid）的发展不仅对理解植物生理学重要，还有助于农业和生物技术的应用。通过操控影响前质体（proplastid）分化的条件，科学家可以提高作物产量并改善植物的营养质量。例如，提高叶绿体形成的效率可以导致更有效的光合作用，从而加快生长速度和提高生物量生产。另外，关于前质体（proplastid）的研究可以提供植物如何适应变化环境的见解。了解这些细胞器如何应对干旱或极端温度等压力因素，可以帮助开发出能够抵御不利条件的耐逆植物品种。这在气候变化背景下尤为重要，因为许多作物面临由于天气模式变化而带来的挑战。总之，前质体（proplastid）是植物细胞中的一个基本细胞器，作为各种质体的前体。它向专门质体的分化能力突显了它在植物发育和功能中的重要性。通过研究前质体（proplastid）及其转化影响因素，研究人员可以获得有价值的知识，这些知识可以应用于改善农业实践和增强粮食安全。对前质体（proplastid）的探索不仅加深了我们对植物生物学的理解，还为植物科学的创新开辟了新的途径。