nematodes

简明释义

英[/ˈnɛm.ə.toʊdz/]美[/ˈnɛm.ə.toʊdz/]

n. （无脊椎）线虫，线虫类（nematode 的复数）

英英释义

单词用法

同义词

反义词

例句

1.According to a report in Discover Magazine, Borgonie and his team may next look for nematodes in the sediments beneath ocean floors.

根据《发现杂志》的报道，Borgonie和他的团队下一步将在海底沉积物中寻找线虫。

2.The results felicitously explain that the number of introns distributed in vertebrates, Diptera and nematodes are declining sequentially.

该结果合理地解释了内含子在脊椎动物，线虫及昆虫中数量的分布呈下降趋势。

3.On the 0.05 significance level, between sterile nematodes and the mixture of sterile nematodes plus their accompanying bacteria.

在0.05的显著水平上，无菌线虫和无菌线虫与它们相应的伴生细菌的混合物之间差异显著。

4.Obtaining the pure nematodes from plant sample by using the small sample sieve combining funnel method.

小的分样筛与漏斗法结合从植物样品获得纯净的线虫。

5.Soil nematodes are the most abundant metazoan, which have various types of life-history and feeding habits, and play a key role in soil food web.

线虫作为土壤中数量最丰富的后生动物，其生活史和取食类型多样，在生态系统中发挥着重要作用。

6.Soil nematodes are representative of a large portion of this fauna, since they are abundant and trophically diverse in most soils.

土壤线虫是这类土壤动物的典型代表，因为它们在大多数土壤中分布是丰富的，而且营养类群是多样的。

7.Farmers often use beneficial nematodes to control pest populations in their fields.

农民们常常使用有益的线虫来控制田地中的害虫种群。

8.Research has shown that certain nematodes can help improve soil health.

研究表明，某些线虫可以帮助改善土壤健康。

9.The nematodes in this soil sample are indicators of its biological activity.

这个土壤样本中的线虫是其生物活性的指标。

10.Some species of nematodes are known to cause diseases in plants.

某些种类的线虫被知晓会导致植物疾病。

11.Scientists are studying how nematodes interact with their environments.

科学家正在研究线虫如何与其环境互动。

作文

Nematodes, also known as roundworms, are a diverse group of organisms that play crucial roles in various ecosystems. They belong to the phylum Nematoda and can be found in a variety of environments, from marine and freshwater habitats to soil and even as parasites in plants and animals. The study of nematodes（线虫） is essential for understanding soil health, agricultural productivity, and even human health due to their impact on both crops and livestock. One of the most fascinating aspects of nematodes（线虫） is their sheer diversity. It is estimated that there are over 25,000 described species, with many more yet to be discovered. They vary significantly in size, shape, and habitat preferences. Some nematodes（线虫） are microscopic, measuring only a few millimeters in length, while others can grow up to several meters long. This diversity allows them to occupy a wide range of ecological niches, making them vital contributors to soil ecosystems. In agricultural settings, nematodes（线虫） can have both beneficial and detrimental effects. While some species are harmful plant parasites that can cause significant crop damage, others are beneficial in controlling pest populations and improving soil structure. For instance, certain nematodes（线虫） are used as biological control agents against insect pests, helping to reduce the reliance on chemical pesticides. This dual role highlights the importance of understanding the specific types of nematodes（线虫） present in a given environment to manage them effectively. Moreover, nematodes（线虫） are also important indicators of soil health. Their presence and abundance can provide valuable insights into the condition of the soil ecosystem. Healthy soils typically support a diverse community of nematodes（线虫）, which in turn contributes to nutrient cycling and organic matter decomposition. Conversely, a decline in nematode（线虫） diversity may indicate soil degradation or contamination, prompting further investigation into soil management practices. In addition to their ecological roles, nematodes（线虫） have significant implications for human health. Some species are known to be parasites of humans, causing diseases such as lymphatic filariasis and ascariasis. These parasitic nematodes（线虫） can lead to severe health issues, particularly in tropical regions where sanitation may be poor. Understanding the life cycles and transmission pathways of these nematodes（线虫） is crucial for developing effective public health interventions and treatment strategies. In conclusion, nematodes（线虫） are a fascinating and complex group of organisms that play critical roles in ecosystems and human health. Their diversity, ecological significance, and impact on agriculture make them an important subject of study for scientists and researchers. As we continue to learn more about these tiny creatures, we gain valuable insights into maintaining soil health, managing agricultural pests, and addressing public health challenges associated with parasitic nematodes（线虫）. Therefore, fostering a greater understanding of nematodes（线虫） is essential for promoting sustainable practices in agriculture and ensuring the well-being of human populations around the world.

线虫，也被称为圆虫，是一类多样化的生物，在各种生态系统中扮演着至关重要的角色。它们属于线虫门，能够在多种环境中找到，从海洋和淡水栖息地到土壤，甚至作为植物和动物的寄生虫。研究线虫对于理解土壤健康、农业生产力以及由于其对作物和牲畜的影响而导致的人类健康问题至关重要。 线虫最迷人的方面之一是它们的多样性。估计有超过25,000种已描述的物种，还有许多尚未被发现。它们在大小、形状和栖息地偏好上差异显著。一些线虫是微小的，仅几毫米长，而其他一些可以长达几米。这种多样性使得它们能够占据广泛的生态位，成为土壤生态系统的重要贡献者。 在农业环境中，线虫可以产生有益和有害的效果。尽管某些物种是有害的植物寄生虫，可能造成重大作物损失，但其他一些则在控制害虫种群和改善土壤结构方面具有益处。例如，某些线虫被用作生物防治剂，以对抗昆虫害虫，有助于减少对化学农药的依赖。这种双重角色突显了了解特定类型线虫在特定环境中的存在的重要性，从而有效管理它们。 此外，线虫也是土壤健康的重要指示物。它们的存在和丰度可以提供有关土壤生态系统状况的宝贵见解。健康的土壤通常支持多样化的线虫群落，这反过来又有助于养分循环和有机物分解。相反，线虫多样性的下降可能表明土壤退化或污染，促使进一步调查土壤管理实践。 除了生态角色外，线虫对人类健康也有重要影响。一些物种已知是人类的寄生虫，导致淋巴丝虫病和蛔虫病等疾病。这些寄生线虫可能导致严重的健康问题，特别是在卫生条件较差的热带地区。了解这些线虫的生命周期和传播途径对于制定有效的公共卫生干预措施和治疗策略至关重要。 总之，线虫是一类迷人而复杂的生物，在生态系统和人类健康中扮演着关键角色。它们的多样性、生态重要性以及对农业的影响，使它们成为科学家和研究人员的重要研究对象。随着我们继续了解这些微小生物，我们获得了维护土壤健康、管理农业害虫以及解决与寄生线虫相关的公共卫生挑战的宝贵见解。因此，促进对线虫的更深入理解对于推动农业可持续实践和确保全球人群的福祉至关重要。