ectomycorrhizae

简明释义

英[ˌɛktəʊmaɪkəˈraɪziː]美[ˌɛktoʊmaɪˈkaɪrɪˌzi]

外生菌根

英英释义

单词用法

同义词

反义词

例句

1.Recently ectomycorrhizae are paid more attention to in forestry.

外生菌根在营林上的作用越来越为人们所重视。

2.Through indoor inoculation test on seedlings of Picea koraiensis, 6 ectomycorrhizae fungi cultures were obtained from 36 isolaters.

经对红皮云杉室内接种试验获得6个可与红皮云杉共生形成外生菌根的菌株。

3.Through indoor inoculation test on seedlings of Picea koraiensis, 6 ectomycorrhizae fungi cultures were obtained from 36 isolaters.

经对红皮云杉室内接种试验获得6个可与红皮云杉共生形成外生菌根的菌株。

4.Stimulating the formation of the ectomycorrhizae.

刺激了外生菌根的形成。

5.The study focused on the diversity of ectomycorrhizae 外生菌根 in temperate forests.

该研究集中于温带森林中外生菌根的多样性。

6.Research shows that ectomycorrhizae 外生菌根 improve the uptake of water and nutrients in plants.

研究表明，外生菌根改善了植物对水分和养分的吸收。

7.Many forest ecosystems rely on ectomycorrhizae 外生菌根 to establish symbiotic relationships with trees.

许多森林生态系统依赖于外生菌根与树木建立共生关系。

8.The presence of ectomycorrhizae 外生菌根 can significantly enhance tree growth in nutrient-poor soils.

在营养贫乏的土壤中，外生菌根的存在可以显著促进树木生长。

9.Certain species of fungi form ectomycorrhizae 外生菌根 with oak and pine trees.

某些真菌物种与橡树和松树形成了外生菌根。

作文

Ectomycorrhizae play a crucial role in the ecosystem by forming symbiotic relationships with the roots of many trees and plants. These associations are particularly important in forest ecosystems, where they contribute to nutrient exchange and improve plant health. The term ectomycorrhizae refers to a specific type of mycorrhizal association where fungi envelop the root tips of host plants, creating a protective sheath. This relationship benefits both the fungi and the plants involved. The fungi receive carbohydrates produced by the plants through photosynthesis, while the plants gain enhanced access to water and essential nutrients such as nitrogen and phosphorus. The formation of ectomycorrhizae begins when fungal spores land on the roots of a suitable host plant. The fungi then germinate and penetrate the outer layers of the root, forming a network that extends into the surrounding soil. This network increases the surface area for absorption, allowing the plant to take up more water and nutrients than it could on its own. In return, the plant supplies the fungi with sugars, which are vital for their growth and reproduction.Research has shown that trees associated with ectomycorrhizae are often more resilient to environmental stresses, such as drought and soil degradation. The fungi help stabilize the soil structure, reducing erosion and promoting healthier growth conditions. Additionally, this symbiotic relationship can enhance biodiversity within forest ecosystems. As trees thrive, they provide habitat and food sources for various organisms, from insects to larger wildlife.The importance of ectomycorrhizae extends beyond individual plants; they also influence the overall health of forest ecosystems. Healthy forests contribute to carbon sequestration, helping mitigate climate change by absorbing carbon dioxide from the atmosphere. Furthermore, they play a vital role in water regulation, preventing flooding and maintaining water quality in surrounding areas.Despite their significance, ectomycorrhizae face threats from human activities such as deforestation, pollution, and climate change. These factors can disrupt the delicate balance of these symbiotic relationships, leading to declines in plant health and forest biodiversity. Conservation efforts aimed at preserving forest ecosystems must consider the role of ectomycorrhizae in maintaining ecological balance.In conclusion, ectomycorrhizae are essential components of healthy forest ecosystems, facilitating nutrient exchange and enhancing plant resilience. Understanding their role in nature can help us appreciate the intricate relationships that sustain life on Earth. As we continue to study these fascinating organisms, it becomes increasingly clear that protecting our forests is not just about saving trees; it's about preserving the complex web of life that relies on these vital partnerships.

外生菌根在生态系统中发挥着至关重要的作用，它们与许多树木和植物的根部形成共生关系。这些关联在森林生态系统中尤其重要，因为它们有助于营养交换并改善植物健康。术语ectomycorrhizae指的是一种特定类型的菌根关联，其中真菌包裹宿主植物的根尖，形成保护鞘。这种关系使参与的真菌和植物都受益。真菌通过光合作用获得植物产生的碳水化合物，而植物则获得对水和必需营养素（如氮和磷）的增强获取。ectomycorrhizae的形成始于真菌孢子落在适合的宿主植物根部。当真菌发芽并穿透根的外层时，便形成了一个网络，延伸到周围的土壤中。这个网络增加了吸收的表面积，使植物能够比单独生长时吸收更多的水分和养分。作为回报，植物为真菌提供糖分，这对它们的生长和繁殖至关重要。研究表明，与ectomycorrhizae相关的树木通常对环境压力（如干旱和土壤退化）更具韧性。真菌有助于稳定土壤结构，减少侵蚀并促进更健康的生长条件。此外，这种共生关系可以增强森林生态系统内的生物多样性。随着树木的繁荣，它们为各种生物体提供栖息地和食物来源，从昆虫到大型野生动物。ectomycorrhizae的重要性不仅局限于单个植物；它们还影响森林生态系统的整体健康。健康的森林有助于碳封存，通过从大气中吸收二氧化碳来缓解气候变化。此外，它们在水资源调节中发挥着至关重要的作用，防止洪水并维持周围地区的水质。尽管它们具有重要意义，但ectomycorrhizae面临着人类活动（如森林砍伐、污染和气候变化）的威胁。这些因素可能会破坏这些共生关系的微妙平衡，导致植物健康和森林生物多样性的下降。旨在保护森林生态系统的保护努力必须考虑ectomycorrhizae在维持生态平衡中的作用。总之，ectomycorrhizae是健康森林生态系统的重要组成部分，促进营养交换并增强植物韧性。理解它们在自然界中的角色可以帮助我们欣赏维持地球生命的复杂关系。随着我们继续研究这些迷人的生物，有越来越多的证据表明，保护我们的森林不仅仅是为了拯救树木；而是为了保护依赖这些重要伙伴关系的复杂生命网络。