phytotoxin

简明释义

英[ˌfaɪtəʊˈtɒksɪn]美[ˌfaɪtəˈtɑːksɪn]

n. [毒物] 植物毒素

英英释义

单词用法

同义词

反义词

例句

1.Those above results indicated that pine wood nematode promoted the production of phytotoxin by bacterium in the host tissue.

该结果说明松材线虫在寄主组织中能促进细菌的产毒。

2.Results also showed that pine wood nematode itself neither produced phytotoxin nor affected the toxicity of extracts from the culture of bacterium after the addition of it.

实验结果表明松材线虫本身不产生毒素，在荧光假单胞菌培养液的无细胞滤液中加入无菌松材线虫未能显著改变其毒性。

3.Phytotoxin, one of the most important factors of fungal disease which is the major plant disease, is paid much attention to.

植物真菌病害是植物的主要病害，毒素作为引发病害的重要因子之一而受到广泛的注意。

4.Results also showed that pine wood nematode itself neither produced phytotoxin nor affected the toxicity of extracts from the culture of bacterium after the addition of it.

实验结果表明松材线虫本身不产生毒素，在荧光假单胞菌培养液的无细胞滤液中加入无菌松材线虫未能显著改变其毒性。

5.Some plants produce phytotoxin to defend themselves against herbivores.

一些植物产生植物毒素以抵御食草动物。

6.Farmers need to be aware of phytotoxin levels in their crops.

农民需要关注他们作物中植物毒素的水平。

7.Researchers are studying the effects of phytotoxin on agricultural pests.

研究人员正在研究植物毒素对农业害虫的影响。

8.Certain fungi release phytotoxin that can harm nearby plants.

某些真菌释放的植物毒素可能会伤害附近的植物。

9.The phytotoxin from this species can cause severe reactions in humans.

这种物种产生的植物毒素可能会导致人类严重反应。

作文

Plants play a crucial role in our ecosystem, providing oxygen, food, and shelter for countless organisms. However, not all plants are harmless; some produce substances known as phytotoxins, which can be detrimental to other living beings. Understanding phytotoxin is essential for both ecological balance and human health. Phytotoxin refers to toxic compounds produced by plants that can cause harm to animals, humans, or other plants. These toxins serve various purposes, including deterring herbivores from consuming the plants, protecting against pathogens, and competing with neighboring plants for resources. One of the most well-known examples of phytotoxins is found in the castor bean plant, which produces ricin, a highly toxic protein. Just a few milligrams of ricin can be lethal to humans if ingested or inhaled. This extreme toxicity makes the castor bean a fascinating case study in the field of plant biology and toxicology. Interestingly, while these phytotoxins can be harmful, they also have potential medicinal applications. For instance, certain compounds derived from plants containing phytotoxins are being researched for their ability to target cancer cells specifically. In nature, phytotoxins also play a significant role in plant competition. Many plants release these toxic substances into the soil, a phenomenon known as allelopathy. This process helps them inhibit the growth of nearby competing plants, ensuring they have access to vital resources such as water and nutrients. For example, the black walnut tree secretes juglone, a type of phytotoxin, which can prevent the germination and growth of many other plant species in its vicinity. While phytotoxins are often associated with negative effects, it is important to recognize their ecological significance. They contribute to the intricate web of interactions within ecosystems, influencing plant community dynamics and animal behavior. Additionally, understanding how these toxins work can lead to advancements in agriculture. By studying phytotoxins, researchers can develop crops that are more resilient to pests and diseases, reducing the need for chemical pesticides. Moreover, the awareness of phytotoxins is crucial for human safety. Many plants that are commonly found in gardens or homes can be toxic if ingested. For instance, the oleander plant is known for its beautiful flowers but contains potent phytotoxins that can be fatal if consumed. Educating the public about these dangers can help prevent accidental poisonings, especially in households with children or pets. In conclusion, phytotoxins are fascinating compounds that highlight the complex relationships between plants and their environment. While they can pose risks to health and safety, they also play vital roles in ecological interactions and have potential applications in medicine and agriculture. By deepening our understanding of phytotoxin, we can appreciate the delicate balance of nature and harness the benefits these compounds may offer to society. As we continue to explore the natural world, it is essential to remain aware of both the dangers and the wonders that plants, through their phytotoxins, can provide.

植物在我们的生态系统中扮演着至关重要的角色，为无数生物提供氧气、食物和栖息地。然而，并非所有植物都是无害的；一些植物产生被称为植物毒素的物质，这些物质可能对其他生物造成伤害。理解植物毒素对生态平衡和人类健康至关重要。植物毒素是指植物产生的有毒化合物，可能对动物、人类或其他植物造成伤害。这些毒素有多种用途，包括阻止草食动物食用植物、保护植物免受病原体侵害，以及与邻近植物争夺资源。 一个众所周知的植物毒素例子是蓖麻豆植物，它产生蓖麻毒素，这是一种高度毒性的蛋白质。仅仅几毫克的蓖麻毒素如果被摄入或吸入就可能致命。这种极端的毒性使得蓖麻豆成为植物生物学和毒理学领域的一个引人入胜的研究案例。有趣的是，尽管这些植物毒素可能有害，但它们也具有潜在的药用应用。例如，某些来源于含有植物毒素的植物的化合物正在研究其针对癌细胞的特定能力。 在自然界中，植物毒素在植物竞争中也发挥着重要作用。许多植物将这些有毒物质释放到土壤中，这一现象被称为自毒性。这一过程帮助它们抑制附近竞争植物的生长，确保它们能够获得水和养分等重要资源。例如，黑胡桃树分泌一种叫做苦味素的植物毒素，可以阻止许多其他植物物种在其附近发芽和生长。 虽然植物毒素通常与负面影响相关，但认识到它们的生态意义也很重要。它们有助于生态系统内复杂相互作用的形成，影响植物群落动态和动物行为。此外，了解这些毒素的工作原理可以促进农业的进步。通过研究植物毒素，研究人员可以开发出对害虫和疾病更具抵抗力的作物，从而减少对化学农药的需求。 此外，意识到植物毒素对人类安全至关重要。许多常见的花园或家居植物如果被摄入可能是有毒的。例如，夹竹桃植物以其美丽的花朵而闻名，但含有强效的植物毒素，如果被食用可能致命。教育公众了解这些危险可以帮助防止意外中毒，尤其是在有儿童或宠物的家庭中。 总之，植物毒素是迷人的化合物，突显了植物与环境之间复杂的关系。虽然它们可能对健康和安全构成风险，但它们在生态相互作用中也发挥着重要作用，并在医学和农业中具有潜在的应用。通过加深对植物毒素的理解，我们可以欣赏自然的微妙平衡，并利用这些化合物可能为社会带来的好处。在我们继续探索自然世界时，保持对植物通过其植物毒素提供的危险和奇迹的意识至关重要。