tonoplast

简明释义

英[ˈtoʊnəˌplæst]美[ˈtoʊnəˌplæst]

n. （包围植物细胞液泡的）[植] 液泡膜

英英释义

单词用法

同义词

反义词

例句

1.Results The effect on tonoplast was differently made by MAE and conventional reflux extracting method.

结果微波辅助萃取与传统提取对液泡膜的影响是不同的。

2.Tonoplast the membrane that surrounds the large central vacuole of plant cells.

液泡膜：植物细胞中包围中央大液泡的膜。

3.The tonoplast shows considerable invaginations.

液泡膜显示出相当大的内陷。

4.Results The effect on tonoplast was differently made by MAE and conventional reflux extracting method.

结果微波辅助萃取与传统提取对液泡膜的影响是不同的。

5.The tonoplast vesicle preparation was improved.

优化了液泡膜微囊制备方法。

6.In studies of osmosis, the tonoplast 液泡膜 is essential for understanding how water moves in plant cells.

在渗透研究中，tonoplast 液泡膜 对理解水在植物细胞中的移动至关重要。

7.Damage to the tonoplast 液泡膜 can lead to cell lysis and loss of cell function.

对tonoplast 液泡膜 的损伤可能导致细胞溶解和细胞功能丧失。

8.Researchers are investigating how the tonoplast 液泡膜 regulates nutrient storage in plant cells.

研究人员正在调查 tonoplast 液泡膜 如何调节植物细胞中的营养物质储存。

9.The tonoplast 液泡膜 allows selective transport of ions and molecules into the vacuole.

tonoplast 液泡膜 允许离子和分子选择性地运输到液泡中。

10.The plant cell's tonoplast 液泡膜 plays a crucial role in maintaining turgor pressure.

植物细胞的tonoplast 液泡膜 在维持膨压方面起着至关重要的作用。

作文

The study of plant cells reveals a fascinating structure known as the tonoplast, which is essential for maintaining the integrity and functionality of the vacuole. The tonoplast is a selectively permeable membrane that surrounds the central vacuole in plant cells, playing a crucial role in regulating the movement of ions, nutrients, and water in and out of the vacuole. This membrane is not just a barrier; it is also involved in various metabolic processes that are vital for the cell's health and overall function.One of the primary functions of the tonoplast is to help maintain turgor pressure within the plant cell. Turgor pressure is the pressure exerted by the fluid inside the vacuole against the cell wall. This pressure is essential for keeping the plant upright and maintaining its structure. When a plant absorbs water, it fills the vacuole, and the tonoplast helps retain this water, preventing it from escaping too quickly. This ability to maintain turgor pressure is particularly important in times of drought or when a plant is under stress, as it allows the plant to survive longer without water.Moreover, the tonoplast plays a significant role in storage. The vacuole can store a variety of substances, including sugars, salts, and pigments. These stored materials can be crucial for the plant’s growth and development. For instance, during periods of photosynthesis, excess glucose can be stored in the vacuole, providing an energy reserve that the plant can draw on when needed. The tonoplast thus acts as a gateway, controlling the release of these stored substances into the cytoplasm when the plant requires them.Another important aspect of the tonoplast is its involvement in detoxification. Plant cells often accumulate harmful substances, such as heavy metals or waste products, which can be detrimental to their health. The tonoplast helps sequester these toxic compounds within the vacuole, isolating them from the rest of the cell and preventing potential damage. This function is vital for the survival of plants in contaminated environments, allowing them to thrive even in less-than-ideal conditions.In addition to these functions, recent research has shed light on the role of the tonoplast in signaling pathways. It is believed that the tonoplast can communicate with other cellular organelles, influencing various physiological responses in the plant. For instance, changes in ion concentrations within the vacuole can trigger specific responses, helping the plant adapt to environmental changes.In conclusion, the tonoplast is more than just a simple membrane; it is a multifunctional component of plant cells that plays a critical role in maintaining homeostasis, storing essential substances, detoxifying harmful compounds, and facilitating communication within the cell. Understanding the complexities of the tonoplast not only enhances our knowledge of plant biology but also highlights the intricate processes that allow plants to thrive in diverse environments. As we continue to explore the functions of this remarkable structure, we gain insights that could have implications for agriculture, conservation, and understanding plant resilience in the face of climate change.

植物细胞的研究揭示了一个被称为液泡膜的迷人结构，它对于维持液泡的完整性和功能至关重要。液泡膜是一个选择性渗透的膜，包围着植物细胞中的中央液泡，在调节离子、营养物质和水分的进出方面发挥着关键作用。这个膜不仅仅是一个屏障；它还参与各种代谢过程，这些过程对细胞的健康和整体功能至关重要。液泡膜的主要功能之一是帮助维持植物细胞内的膨压。膨压是液泡内流体对细胞壁施加的压力。这种压力对于保持植物直立和维持其结构至关重要。当植物吸收水分时，液泡充满水，液泡膜帮助保留这些水分，防止其过快流失。在干旱或植物处于压力状态时，维持膨压的能力尤为重要，因为这使植物能够在缺水的情况下存活更长时间。此外，液泡膜在储存中也发挥着重要作用。液泡可以储存多种物质，包括糖、盐和色素。这些储存的材料对植物的生长和发育至关重要。例如，在光合作用期间，多余的葡萄糖可以储存在液泡中，为植物提供能量储备，以便在需要时提取。因此，液泡膜充当一个门控，控制这些储存物质在植物需要时释放到细胞质中。液泡膜的另一个重要方面是它在去毒化中的作用。植物细胞经常积累有害物质，例如重金属或废物，这些物质可能对其健康产生危害。液泡膜帮助将这些有毒化合物隔离在液泡内，防止其对细胞其他部分造成潜在损害。这一功能对于植物在污染环境中的生存至关重要，使它们即使在不理想的条件下也能繁荣生长。除了这些功能，最近的研究还揭示了液泡膜在信号通路中的作用。据信，液泡膜可以与其他细胞器进行通信，影响植物的各种生理反应。例如，液泡内离子浓度的变化可以触发特定反应，帮助植物适应环境变化。总之，液泡膜不仅仅是一个简单的膜；它是植物细胞的一个多功能组成部分，在维持稳态、储存必需物质、去毒有害化合物以及促进细胞内通信方面发挥着关键作用。理解液泡膜的复杂性不仅增强了我们对植物生物学的知识，还突显了使植物能够在多样环境中茁壮成长的复杂过程。当我们继续探索这一非凡结构的功能时，我们获得的见解可能对农业、保护和理解植物在气候变化面前的韧性产生影响。