laticifer

简明释义

英[ləˈtɪsɪfə(r)]美[ləˈtɪsɪfər]

n. [植] 乳汁细胞；[植] 乳汁管，[植] 乳汁器

英英释义

单词用法

同义词

反义词

例句

1.A network, composed of proteinaceous Marerials, was found in the laticifer wound, and the network, filled with flocculated rub-ber particles, was found to plug the laticifer wound.

发现在切割后乳管伤口有一个由蛋白质物质组成的网，它与絮凝的橡胶粒于将乳管伤口堵塞。

2.The girth, latex yield, laticifer number and wind tolerance of 1981 IRRDB rubber tree germplasm planted in 1987 were observed.

对我国1987年定植保存于大田的81份1981’IRRDB种质进行了茎围、产胶量、乳管数目鉴定和抗风性调查。

3.The results on the mechanisms of laticifer wound plugging after wounding are significant to improvement of latex exploitation and control of laticifer diseases.

这些关于橡胶树乳管伤口封闭机制的研究结果对于采胶技术的改进和乳管病害的防治都有重要意义。

4.When applied to an extending stem, JA led to a significant increase in primary laticifer number, but induced no differentiation of secondary laticifers.

施用茉莉酸对正在伸长的茎中初生乳管分化有明显促进作用，但不能诱导形成次生乳管。

5.The relationship between the effect of exogenous jasmonic acid (JA) on the induction of secondary laticifer differentiation and the distribution of JA in the seedling of Hevea brasiliensis Mull.

中的分布和运输的特点，并分析其与机械伤害和外施茉莉酸对巴西橡胶树次生乳管分化的诱导效应之间的关系。

6.The relationship between the effect of exogenous jasmonic acid (JA) on the induction of secondary laticifer differentiation and the distribution of JA in the seedling of Hevea brasiliensis Mull.

中的分布和运输的特点，并分析其与机械伤害和外施茉莉酸对巴西橡胶树次生乳管分化的诱导效应之间的关系。

7.In the epicormic shoot stem which passed a growth season, the secondary laticifer differentiation of all the extension parts was accelerated by JA application.

在经过生长期的表皮茎上，施用茉莉酸能够促进各个伸长单位茎中次生乳管的分化。

8.By assaying the activities of the cut, chitinase, an important defense protein in the laticifer, was traced after bark wounding.

割胶树皮伤口的变化，并测定了乳管中重要的防卫蛋白质几丁质酶在树皮伤口的积累和消失。

9.The effect of exogenous JA and mechanical wounding on the induction of the secondary laticifer differentiation was limited to treated site where high level of JA was expected.

机械伤害和外施茉莉酸对巴西橡胶树次生乳管分化的诱导效应是局部的，只在受伤和施用茉莉酸部位的树皮中诱导次生乳管的形成。

10.Some plants have multiple types of laticifers, each serving different functions.

一些植物有多种类型的乳管，每种具有不同的功能。

11.In botany, the study of laticifers is essential for understanding how plants produce certain chemicals.

在植物学中，研究乳管对于理解植物如何产生某些化学物质至关重要。

12.Researchers are examining the structure of laticifers in various species for potential medicinal uses.

研究人员正在检查各种物种中乳管的结构，以寻找潜在的药用用途。

13.The presence of laticifers can indicate a plant’s ability to produce natural rubber.

存在乳管可能表明植物能够产生天然橡胶。

14.The rubber tree has specialized structures called laticifers that transport latex.

橡胶树具有称为乳管的专门结构，用于运输乳胶。

作文

In the world of botany, understanding the various structures and functions of plants is crucial for both scientific research and practical applications. One such fascinating structure is the laticifer, which plays a vital role in the production and transportation of latex within certain plants. Latex is a milky fluid that contains various compounds, including rubber, and is found in many species of plants, particularly those in the Euphorbiaceae family. The study of laticifers can provide insights into how plants defend themselves against herbivores and pathogens, as well as how they adapt to their environments.The laticifer system consists of specialized cells that are interconnected to form a network throughout the plant. These cells are capable of producing latex, which serves multiple purposes. For example, when a plant is wounded, the latex can ooze out and create a barrier that protects the plant from further damage and deters pests. This defensive mechanism is particularly important for plants that are vulnerable to herbivory.Moreover, the composition of latex varies significantly among different plant species. Some plants produce latex that is rich in rubber, while others may contain toxic compounds that deter herbivores. This diversity not only highlights the evolutionary adaptations of plants but also presents opportunities for human exploitation. The commercial value of natural rubber derived from laticifers has led to extensive cultivation of rubber trees, primarily in tropical regions. However, this has raised concerns about environmental sustainability and the impact on local ecosystems.In addition to their ecological significance, laticifers have been the subject of numerous studies aimed at understanding their development and function. Researchers have discovered that the formation of laticifers is influenced by various factors, including genetic regulation and environmental conditions. By manipulating these factors, scientists hope to enhance the production of latex in economically important species, thereby improving yields and reducing reliance on synthetic alternatives.The role of laticifers extends beyond just latex production; they are also involved in the transport of other secondary metabolites that contribute to a plant's overall health and resilience. These compounds can have medicinal properties and play a role in plant interactions with other organisms, including beneficial insects and microorganisms. Thus, studying laticifers offers a broader understanding of plant biology and ecology.In conclusion, the laticifer is a remarkable adaptation that showcases the intricate relationships between plants and their environments. As we continue to explore the complexities of plant structures, the importance of laticifers becomes increasingly clear. They not only serve essential functions in plant defense and survival but also hold significant potential for agricultural and industrial applications. Understanding and preserving these unique structures will be vital for future research and sustainable practices in botany and related fields.

在植物学的世界中，理解植物的各种结构和功能对于科学研究和实际应用至关重要。其中一个引人入胜的结构是乳管，它在某些植物中乳胶的生产和运输中发挥着重要作用。乳胶是一种含有多种化合物（包括橡胶）的乳白色液体，广泛存在于许多植物物种中，特别是大戟科植物。对乳管的研究可以深入了解植物如何抵御食草动物和病原体，以及它们如何适应环境。乳管系统由专门的细胞组成，这些细胞相互连接，形成遍布整个植物的网络。这些细胞能够产生乳胶，乳胶具有多重用途。例如，当植物受伤时，乳胶可以渗出并形成屏障，保护植物免受进一步损害并阻止害虫。这种防御机制对于易受食草动物侵害的植物尤为重要。此外，乳胶的成分在不同植物物种之间差异显著。一些植物产生富含橡胶的乳胶，而其他植物可能含有毒性化合物以阻止食草动物。这种多样性不仅突显了植物的进化适应性，还为人类的开发提供了机会。从乳管中提取的天然橡胶的商业价值导致了主要在热带地区对橡胶树的大规模种植。然而，这也引发了对环境可持续性和对当地生态系统影响的担忧。除了生态重要性外，乳管还是众多研究的主题，旨在理解其发育和功能。研究人员发现，乳管的形成受到多种因素的影响，包括基因调控和环境条件。通过操控这些因素，科学家希望提高经济重要物种中乳胶的生产，从而改善产量并减少对合成替代品的依赖。乳管的作用不仅限于乳胶生产；它们还参与输送其他次级代谢物，这些代谢物有助于植物的整体健康和韧性。这些化合物可能具有药用特性，并在植物与其他生物（包括有益昆虫和微生物）的相互作用中发挥作用。因此，研究乳管提供了对植物生物学和生态学的更广泛理解。总之，乳管是一种显著的适应性，展示了植物与其环境之间复杂的关系。随着我们继续探索植物结构的复杂性，乳管的重要性变得愈加明显。它们不仅在植物防御和生存中发挥着基本功能，而且在农业和工业应用中具有重要潜力。理解和保护这些独特的结构对于未来的植物学及相关领域的研究和可持续实践至关重要。