aerenchyma

简明释义

英[eəˈreŋkɪmə]美[eˈreŋkɪmə]

n. [植] 通气组织

英英释义

单词用法

同义词

反义词

例句

1.When cortex aerenchyma began to form, flooding was beneficial to its formation, which could enhance the waterlogging tolerance of annual wild soybean.

在开始形成通气组织时淹水则有促进皮层通气组织发育的作用，从而提高其抗涝渍特性。

2.It was concluded that aerenchyma that formed in the root cortex impeded the radial transport of water in the root cylinder and decreased water uptake in water-stressed rice plants fed by nitrate.

这表明施用硝酸盐，当植株遭受水分胁迫后，水稻根皮层形成的通气组织阻止了水分的径向转运，减少了水分吸收。

3.The thickness of phellem, aerenchyma, diameter of vessel holes, and the number of vessels are related to the anti-waterlogging character.

木栓厚度，通气组织，管孔直径和导管数量与抗涝性相关。

4.Soil culture experiment was conducted to study the effect of rice root aerenchyma on root iron plaque by Jiahua 1 this kind of genotype rice.

采用土培试验研究了嘉花1号这种基因型水稻根系通气组织对其根表铁膜形成的影响。

5.Compared with inundatory condition, aerobic condition retarded the formation of aerenchyma of hybrid rice roots and made the cortex sclerenchymatous cells array loosely in conventional japonica root.

与淹水条件相比，旱作条件下杂交稻根通气组织形成较迟，常规粳稻根皮层厚壁细胞排列较疏松。

6.Anatomical observation of aerenchyma helps understand the growth, distribution, and adaptation of wetland plants to different habitats.

对通气组织的解剖观察有助于了解湿地植物的生长、分布及对不同生境的适应。

7.Compared with inundatory condition, aerobic condition retarded the formation of aerenchyma of hybrid rice roots and made the cortex sclerenchymatous cells array loosely in conventional japonica root.

与淹水条件相比，旱作条件下杂交稻根通气组织形成较迟，常规粳稻根皮层厚壁细胞排列较疏松。

8.The crystals exist in parenchyma cells of its petioles. Its petioles have big vessels and much aerenchyma.

叶柄薄壁细胞存在晶体，叶柄的导管管径比较大，有大量的通气组织。

9.The results showed that root aerenchyma tissue increased in water-stressed plants of both cultivars fed by nitrate.

结果表明施用硝酸盐，水分胁迫致使两个水稻品种通气组织增加。

10.The formation of aerenchyma can enhance the adaptability of plants to flooding.

气腔组织的形成可以增强植物对洪水的适应能力。

11.The presence of aerenchyma in aquatic plants allows them to float and access sunlight.

水生植物中存在的气腔组织使它们能够浮起并获取阳光。

12.The structure of aerenchyma facilitates gas exchange in submerged plant species.

在沉水植物种类中，气腔组织的结构促进了气体交换。

13.In rice paddies, aerenchyma plays a critical role in maintaining root health under anaerobic conditions.

在稻田中，气腔组织在厌氧条件下对维持根部健康起着关键作用。

14.Researchers are studying how aerenchyma affects the oxygen levels in wetland ecosystems.

研究人员正在研究气腔组织如何影响湿地生态系统中的氧气水平。

作文

In the vast world of botany, plants exhibit a myriad of adaptations that enable them to thrive in various environments. One such adaptation is the presence of aerenchyma, a specialized tissue found in many aquatic and semi-aquatic plants. This unique type of tissue plays a crucial role in the survival of these plants by providing buoyancy and facilitating gas exchange. Understanding aerenchyma is essential for anyone interested in plant biology, ecology, or environmental science.aerenchyma" target="_blank">Aerenchyma is characterized by its large air-filled spaces, which are formed by the breakdown of cell walls in certain parenchyma cells. This process not only creates a network of air channels but also enhances the plant's ability to float on water surfaces. For instance, species like water lilies and cattails possess aerenchyma that allows them to remain buoyant, ensuring their leaves and flowers can access sunlight for photosynthesis.Moreover, aerenchyma significantly contributes to the plant's respiratory efficiency. In waterlogged soils, where oxygen levels are low, this tissue allows for the diffusion of gases, particularly oxygen, from the aerial parts of the plant to the submerged roots. This adaptation is vital for the survival of wetland plants, as it helps them cope with anaerobic conditions that would otherwise impede their growth.The formation of aerenchyma is often influenced by environmental factors. For example, in response to flooding, some plants can actively develop this tissue to enhance their survival chances. The ability to form aerenchyma is not uniform across all plant species; it varies greatly depending on genetic factors and environmental conditions. Research has shown that certain genotypes of plants exhibit a higher propensity for aerenchyma development, making them more resilient in challenging habitats.In addition to its role in buoyancy and gas exchange, aerenchyma also aids in nutrient transport within the plant. The air-filled spaces facilitate the movement of nutrients and water, ensuring that all parts of the plant receive the necessary resources for growth and development. This is particularly important in wetlands, where nutrient availability can fluctuate significantly.Ecologically, aerenchyma plays a vital role in wetland ecosystems. By supporting plant life in these areas, it contributes to biodiversity and provides habitat for numerous aquatic organisms. Wetlands are known for their rich biodiversity, and the presence of plants with aerenchyma is a key factor in maintaining the health of these ecosystems. Furthermore, the oxygen produced by these plants during photosynthesis supports aquatic life, creating a balanced environment.In conclusion, the study of aerenchyma reveals the incredible adaptability of plants to their environments. This specialized tissue not only enhances buoyancy and gas exchange but also plays a critical role in nutrient transport and ecosystem health. As we continue to explore the complexities of plant biology, understanding adaptations like aerenchyma will be essential for conservation efforts and managing our natural resources effectively. The resilience of plants in the face of environmental challenges highlights the intricate relationships that exist within ecosystems, reminding us of the importance of preserving these vital habitats for future generations.

在植物学的广阔世界中，植物表现出多种适应性，使它们能够在各种环境中茁壮成长。其中一种适应性是存在于许多水生和半水生植物中的aerenchyma，这是一种特殊的组织。这种独特的组织在这些植物的生存中发挥着至关重要的作用，通过提供浮力和促进气体交换来实现。理解aerenchyma对于任何对植物生物学、生态学或环境科学感兴趣的人来说都是必要的。aerenchyma的特点是其大面积的充气空间，这些空间是通过某些薄壁细胞的细胞壁分解形成的。这一过程不仅创建了一个空气通道网络，还增强了植物在水面上漂浮的能力。例如，水百合和香蒲等物种具有aerenchyma，使它们能够保持浮力，确保其叶子和花朵能够获取阳光进行光合作用。此外，aerenchyma显著提高了植物的呼吸效率。在缺氧的水logged土壤中，这种组织允许气体，特别是氧气，从植物的空气部分扩散到淹没的根部。这一适应性对湿地植物的生存至关重要，因为它帮助它们应对厌氧条件，否则会阻碍它们的生长。aerenchyma的形成通常受环境因素的影响。例如，面对洪水时，一些植物能够主动发展这种组织，以增强其生存机会。形成aerenchyma的能力并不是所有植物物种都相同；它在很大程度上取决于遗传因素和环境条件。研究表明，某些植物的基因型表现出更高的aerenchyma发展倾向，使它们在困难栖息地中更加坚韧。除了在浮力和气体交换中的作用外，aerenchyma还帮助植物内部的养分运输。充气的空间促进了养分和水分的移动，确保植物的各个部分获得生长和发展的必要资源。这在湿地中特别重要，因为养分的可用性可能会显著波动。在生态上，aerenchyma在湿地生态系统中发挥着重要作用。通过支持这些地区的植物生命，它促进了生物多样性，并为众多水生生物提供栖息地。湿地以其丰富的生物多样性而闻名，而具有aerenchyma的植物的存在是维持这些生态系统健康的关键因素。此外，这些植物在光合作用过程中产生的氧气支持水生生物，创造了一个平衡的环境。总之，研究aerenchyma揭示了植物在环境中的惊人适应能力。这种特殊的组织不仅增强了浮力和气体交换，还在养分运输和生态系统健康中发挥着关键作用。随着我们继续探索植物生物学的复杂性，理解像aerenchyma这样的适应性将对保护工作和有效管理自然资源至关重要。植物在面对环境挑战时的韧性突显了生态系统内存在的错综复杂的关系，提醒我们保护这些重要栖息地以供后代使用的重要性。