rhizobium

简明释义

英[raɪˈzəʊbiəm]美[raɪˈzobɪəm]

n. 根瘤菌

复 数 r h i z o b i a

英英释义

单词用法

同义词

反义词

例句

1.It has been shown that the combination of the selections of Rhizobium strains and peanut varieties is of vital importance.

实践证明，选择根瘤菌株与花生品种组合发挥了根瘤菌剂的增产效果。

2.This study will contribute to better discovering and using natural resources of soybean rhizobium and genetic breeding of soybean.

此项研究为大豆根瘤菌剂的田间应用和大豆遗传育种提供了科学依据和实验材料。

3.Effects on mitosis and chromosomal aberrations of tobacco root tip cells were observed by the method of artificially inducing para-nodule treated with 2, 4-d and rhizobium.

通过人工诱导烟草结瘤的方法，观察给予2,4 - D、根瘤菌后，其对烟草根尖细胞有丝分裂和染色体畸变的影响。

4.Nodulation factors are induced when nodulation genes of Rhizobium are expressed.

根瘤菌结瘤基因表达后诱导产生结瘤因子。

5.This paper would explore the mutagenesis of Rhizobium mutants resistant to kasugamycin, and analyse the nodulation and fixation nitrogen character of the mutants.

本文将探讨诱变对根瘤菌抗春雷霉素突变的作用，并对获得的抗性突变株的生物固氮特性进行分析。

6.The effect of multiple inoculation with different mycorrhizal fungi and Rhizobium is better than single microorganism material inoculation at most circumstances.

不同菌根菌的混合接种及菌根菌与根瘤菌的混合接种在多数情况下均比单接种效果好。

7.The infection process of legumes by rhizobium and Bradyrhizobium species consist of several stages.

豆类被根瘤菌和博斯特属菌感染的过程分为几步。

8.However, with the increasing of nitrogen fertilizer, it not only inhibits nitrogen fixation between soybean and rhizobium, but brings disadvantages to ecological environment.

大豆随着氮肥施用量的增加，不仅抑制了大豆—根瘤菌的共生固氮作用，也给生态环境带来了不利的影响。

9.The study focused on the interaction between legumes and rhizobium 根瘤菌 in promoting soil fertility.

这项研究集中于豆科植物与rhizobium 根瘤菌之间的相互作用，以促进土壤肥力。

10.Farmers often inoculate seeds with rhizobium 根瘤菌 to enhance nitrogen fixation.

农民常常用rhizobium 根瘤菌给种子接种，以增强氮的固化能力。

11.Research shows that different strains of rhizobium 根瘤菌 can affect crop yield variably.

研究表明，不同株系的rhizobium 根瘤菌可能会对作物产量产生不同的影响。

12.In organic farming, rhizobium 根瘤菌 is essential for maintaining sustainable agriculture practices.

在有机农业中，rhizobium 根瘤菌对维持可持续农业实践至关重要。

13.The presence of rhizobium 根瘤菌 in the soil can significantly reduce the need for chemical fertilizers.

土壤中存在的rhizobium 根瘤菌可以显著减少对化肥的需求。

作文

In the world of agriculture and ecology, the role of microorganisms is often underestimated. One such microorganism that plays a crucial role in the nitrogen cycle is rhizobium. This genus of bacteria is known for its symbiotic relationship with legumes, which includes plants like peas, beans, and clover. The significance of rhizobium cannot be overstated, as it not only enhances soil fertility but also contributes to sustainable agricultural practices. Rhizobium bacteria are unique because they have the ability to fix atmospheric nitrogen into a form that plants can utilize. In nature, nitrogen is abundant in the air, making up about 78% of the atmosphere. However, most plants cannot use nitrogen in its gaseous form. This is where rhizobium comes into play. When legumes are planted, they release certain compounds into the soil that attract rhizobium bacteria. These bacteria then invade the root hairs of the legume plants, leading to the formation of specialized structures called root nodules. Inside these nodules, rhizobium bacteria convert atmospheric nitrogen into ammonia through a process known as nitrogen fixation. This ammonia is then transformed into amino acids and other essential compounds that are vital for plant growth. As a result, legumes can thrive in nitrogen-poor soils, and in return, they provide a habitat and nutrients for rhizobium. The implications of this relationship extend beyond just the legumes themselves. When legumes are included in crop rotations, they improve the overall health of the soil. After harvesting, the remaining plant material, along with the nodules, decomposes and enriches the soil with nitrogen. This natural fertilization process reduces the need for synthetic fertilizers, which can be harmful to the environment. Therefore, incorporating legumes into farming systems is a sustainable practice that benefits both the farmer and the ecosystem. Moreover, the use of rhizobium in agriculture is not limited to legumes. Scientists are exploring ways to enhance the effectiveness of these bacteria through various methods, including genetic engineering. By understanding the genetic makeup of rhizobium, researchers aim to develop strains that can fix even more nitrogen or can thrive in a wider range of environmental conditions. This research could lead to significant advancements in sustainable agriculture, allowing farmers to reduce their reliance on chemical fertilizers while maintaining high crop yields. In conclusion, the importance of rhizobium in agriculture and ecology is profound. This tiny bacterium has a monumental impact on soil fertility and sustainable farming practices. By fostering the growth of legumes and enhancing nitrogen fixation, rhizobium contributes to healthier soils and more productive crops. As we continue to face challenges related to food security and environmental sustainability, understanding and harnessing the power of rhizobium will be essential for the future of agriculture. Through continued research and innovation, we can unlock the full potential of this remarkable microorganism and promote a more sustainable approach to farming worldwide.

在农业和生态学的世界中，微生物的作用常常被低估。rhizobium就是一种在氮循环中发挥关键作用的微生物。这种细菌属以其与豆科植物（如豌豆、豆类和三叶草）的共生关系而闻名。rhizobium的重要性不容小觑，因为它不仅增强了土壤肥力，还促进了可持续农业实践。 Rhizobium细菌的独特之处在于它们能够将大气中的氮固定为植物可以利用的形式。在自然界中，氮在空气中是丰富的，占据了大气的约78%。然而，大多数植物无法使用气态氮。这正是rhizobium派上用场的时候。当豆类植物生长时，它们会释放某些化合物到土壤中，从而吸引rhizobium细菌。这些细菌随后侵入豆类植物的根毛，形成称为根瘤的特殊结构。 在这些根瘤内部，rhizobium细菌通过一个称为氮固定的过程将大气中的氮转化为氨。这种氨随后被转化为氨基酸和其他对植物生长至关重要的化合物。因此，豆类植物能够在缺氮的土壤中茁壮成长，而作为回报，它们为rhizobium提供了栖息地和营养。 这种关系的影响不仅限于豆类植物本身。当豆类植物被纳入轮作系统时，它们改善了土壤的整体健康。在收获后，剩余的植物材料以及根瘤分解，给土壤提供氮。这种自然施肥过程减少了对合成肥料的需求，而合成肥料可能对环境造成危害。因此，将豆类植物纳入农业系统是一种可持续的做法，既有利于农民，又有利于生态系统。 此外，rhizobium在农业中的应用不仅限于豆类植物。科学家们正在探索通过各种方法增强这些细菌的有效性。通过了解rhizobium的遗传结构，研究人员旨在开发能够固定更多氮或能够在更广泛环境条件下生存的菌株。这项研究可能会在可持续农业方面带来重大进展，使农民能够减少对化肥的依赖，同时保持高产量。 总之，rhizobium在农业和生态学中的重要性深远。这种微小的细菌对土壤肥力和可持续农业实践产生了巨大影响。通过促进豆类植物的生长和增强氮固定能力，rhizobium为土壤健康和作物生产力做出了贡献。随着我们继续面临与粮食安全和环境可持续性相关的挑战，理解和利用rhizobium的力量将对农业的未来至关重要。通过持续的研究和创新，我们可以释放这种非凡微生物的全部潜力，促进全球农业的可持续发展。