haustoria

简明释义

英[hɔːˈstɔːrɪə]美[hɔːsˈtɔːrɪə]

n. 吸器

英英释义

单词用法

同义词

反义词

例句

1.The results suggested that the endosperm haustoria played roles in the absorption and transportation of nutrients to endosperm.

结果表明胚乳吸器起营养物质的吸收和转运作用，向胚乳提供养料。

2.The tracheid and sieve tube elements are all differentiated from the procambia in the center of the haustoria, and the former occurs prior to the latter.

吸器中管胞和筛管都是从吸器中央具有原形成层特性的细胞分化的，管胞的分化先于筛管，或同时进行。

3.Early necrosis or post haustorium formation necrosis of haustoria might take place.

吸器可以在发育早期受抑坏死，也可迟滞至吸器体形成之后坏死。

4.The tracheid and sieve tube elements are all differentiated from the procambia in the center of the haustoria, and the former occurs prior to the latter.

吸器中管胞和筛管都是从吸器中央具有原形成层特性的细胞分化的，管胞的分化先于筛管，或同时进行。

5.The effectiveness of haustoria in nutrient uptake is crucial for the survival of many parasitic species.

在许多寄生物种中，haustoria在养分吸收中的有效性对于生存至关重要。

6.The plant's haustoria enable it to absorb nutrients directly from the host plant.

植物的haustoria使它能够直接从寄主植物中吸收养分。

7.In some cases, the presence of haustoria can indicate a healthy interaction between plants.

在某些情况下，haustoria的存在可以表明植物之间健康的相互作用。

8.Some parasitic plants develop haustoria to penetrate the roots of their hosts.

一些寄生植物发展出haustoria以穿透其寄主的根部。

9.Research has shown that haustoria can vary significantly between different species of parasitic plants.

研究表明，不同种类的寄生植物之间的haustoria可能存在显著差异。

作文

In the fascinating world of plant biology, one can encounter a remarkable structure known as haustoria. These specialized organs play a crucial role in the interaction between parasitic plants and their host plants. To understand the significance of haustoria, we must first delve into the realm of parasitism in plants. Parasitic plants, such as dodder and broomrape, have evolved unique adaptations that allow them to thrive at the expense of other plants. The haustoria serve as the interface through which these parasites extract nutrients and water from their hosts. Essentially, they act like tiny root-like structures that penetrate the tissues of the host plant, establishing a connection that facilitates the transfer of resources.The formation of haustoria is a complex process that involves both morphological and physiological changes. When a parasitic plant comes into contact with a suitable host, it initiates the development of haustoria by producing specialized cells that can invade the host's vascular system. This invasion allows the parasite to siphon off essential nutrients such as carbohydrates, amino acids, and minerals, which are vital for its growth and reproduction. Interestingly, the presence of haustoria does not always lead to the immediate death of the host plant. In some cases, the host may continue to survive while the parasite flourishes, creating a delicate balance in the ecosystem.Understanding haustoria is not only important for botanists but also for agricultural practices. Parasitic plants can cause significant damage to crops, leading to reduced yields and economic losses for farmers. By studying the mechanisms of haustoria formation and function, researchers can develop strategies to mitigate the impact of these pests. For instance, identifying specific genes involved in the development of haustoria may lead to the creation of resistant crop varieties or targeted treatments that disrupt the parasite's ability to form these structures.Moreover, the study of haustoria extends beyond agriculture. It offers insights into evolutionary biology and the intricate relationships between plants. The evolution of haustoria showcases how organisms adapt to their environments and exploit available resources. This phenomenon prompts further questions about the co-evolution of hosts and parasites, as both parties continuously adapt to each other's strategies.In conclusion, the term haustoria encompasses a fascinating aspect of plant biology that highlights the complexities of parasitism. These specialized structures enable parasitic plants to extract vital resources from their hosts, leading to intriguing ecological dynamics. As we deepen our understanding of haustoria, we unlock potential solutions for agricultural challenges and gain a greater appreciation for the interconnectedness of life. The study of haustoria not only sheds light on the survival strategies of parasitic plants but also enhances our knowledge of plant interactions within ecosystems, ultimately contributing to the broader field of botany and ecology.

在植物生物学的迷人世界中，我们可以遇到一个被称为haustoria的特殊结构。这些专门的器官在寄生植物与其宿主植物之间的相互作用中发挥着至关重要的作用。要理解haustoria的重要性，我们必须首先深入了解植物中的寄生现象。寄生植物，如藤本植物和金雀花，已经进化出独特的适应性，使它们能够以其他植物为代价而繁荣。haustoria充当了这些寄生虫提取宿主营养和水分的接口。本质上，它们就像微小的根状结构，穿透宿主植物的组织，建立一种促进资源转移的连接。haustoria的形成是一个复杂的过程，涉及形态学和生理学的变化。当寄生植物与合适的宿主接触时，它会通过产生能够侵入宿主维管系统的专门细胞来启动haustoria的发育。这种入侵使寄生植物能够抽取必需的营养物质，如碳水化合物、氨基酸和矿物质，这些对于其生长和繁殖至关重要。有趣的是，haustoria的存在并不总是导致宿主植物的立即死亡。在某些情况下，宿主可能继续存活，而寄生植物则茁壮成长，从而在生态系统中创造出微妙的平衡。理解haustoria不仅对植物学家重要，也对农业实践至关重要。寄生植物可能对农作物造成重大损害，导致农民的产量减少和经济损失。通过研究haustoria的形成和功能机制，研究人员可以制定减轻这些害虫影响的策略。例如，识别参与haustoria发育的特定基因可能导致抗病作物品种的创建或针对性治疗，以破坏寄生植物形成这些结构的能力。此外，haustoria的研究超越了农业，提供了对进化生物学和植物之间复杂关系的洞察。haustoria的演化展示了生物如何适应环境并利用可用资源。这一现象引发了关于宿主和寄生虫的共同进化的进一步思考，因为双方不断适应彼此的策略。总之，术语haustoria涵盖了植物生物学的一个迷人方面，突显了寄生现象的复杂性。这些专门的结构使寄生植物能够从宿主中提取重要资源，导致引人入胜的生态动态。随着我们对haustoria理解的加深，我们解锁了应对农业挑战的潜在解决方案，并对生命的相互联系有了更深的认识。对haustoria的研究不仅揭示了寄生植物的生存策略，还增强了我们对生态系统中植物相互作用的知识，最终为植物学和生态学的更广泛领域做出了贡献。