ulva

简明释义

英[ˈʌlvə]美[ˈʌlvə]

n. [植] 石莼

英英释义

单词用法

同义词

反义词

例句

1.The extraction technology of the polysaccharide from the green marine algae ulva lactuca l. was optimized with the orthogonal design.

用正交设计法对绿藻石莼多糖成分提取工艺进行研究。

2.A novel lectin gene sequences isolated from Ulva Pertusa L., a kind of the Marine green alga, would play potential use in the breeding of new crop varieties against plant diseases and insect pests.

从海洋绿藻孔石莼中分离到一种凝集素基因序列，为培育抗病虫作物新品种提供了新资源。

3.Any of several green algae of the genus Ulva, having a membranous leaflike, irregularly shaped thallus sometimes used in salads.

一种石莼属的绿色海藻，有膜状叶形的不规则的叶状体，经常用在沙拉中。

4.Ulva pertusa, a kind of marine macroalgae, is a preponderant algae in Chinese sea area.

孔石莼是一种资源量较大的大型绿藻，在我国主要海区均是优势物种。

5.The nutrition composition of Ulva conglobata kjellm was analyzed.

分析蛎菜的一般营养成分。

6.A novel lectin gene sequences isolated from Ulva Pertusa L., a kind of the Marine green alga, would play potential use in the breeding of new crop varieties against plant diseases and insect pests.

从海洋绿藻孔石莼中分离到一种凝集素基因序列，为培育抗病虫作物新品种提供了新资源。

7.As a result, the strong reproductive capacity of floating green tide algae Ulva prolifera might be the main reason of green tide occurrence.

漂浮浒苔强大的繁殖能力是导致其生物量快速增长而引起绿潮爆发的主要原因之一。

8.The coastal waters are rich in seaweed, especially ulva.

沿海水域富含海藻，特别是海带。

9.Scientists are studying the growth patterns of ulva in polluted waters.

科学家正在研究海带在污染水域的生长模式。

10.The green color of ulva indicates its high chlorophyll content.

海带的绿色表明其高叶绿素含量。

11.In many Asian cuisines, ulva is used as a nutritious ingredient.

在许多亚洲菜肴中，海带被用作营养成分。

12.You can find ulva in salads or as a garnish in various dishes.

你可以在沙拉中或作为各种菜肴的装饰找到海带。

作文

The world of marine life is vast and diverse, filled with organisms that play crucial roles in their ecosystems. One such organism is ulva, commonly known as sea lettuce. This green alga thrives in coastal waters and is often found clinging to rocks or floating freely in the ocean. Ulva is not only fascinating from a biological perspective but also holds significant ecological and economic importance. In this essay, I will explore the characteristics of ulva, its role in marine ecosystems, and its potential benefits for human use.Ulva is characterized by its bright green color and leafy appearance, resembling a thin sheet of lettuce. It belongs to the division Chlorophyta and is known for its rapid growth and ability to thrive in various environmental conditions. This adaptability makes ulva an essential component of many coastal habitats. It can grow in both intertidal zones and subtidal areas, often forming dense mats that provide habitat and food for a variety of marine organisms.One of the critical roles of ulva in marine ecosystems is its contribution to primary production. As a photosynthetic organism, ulva converts sunlight into energy, producing oxygen and organic matter that serve as food for herbivores such as snails, crabs, and some fish species. These herbivores, in turn, support higher trophic levels in the food web, including predators like larger fish and seabirds. Thus, ulva plays a vital role in sustaining marine biodiversity.In addition to its ecological significance, ulva has garnered attention for its potential uses in human industries. For centuries, it has been consumed as food in various cultures, particularly in Asian cuisines. Rich in vitamins, minerals, and antioxidants, ulva is considered a superfood by many nutritionists. Its culinary versatility allows it to be used in salads, soups, and even as a natural thickening agent in dishes. Moreover, with the growing interest in sustainable food sources, ulva could become an essential ingredient in future diets as more people seek plant-based options.Beyond its nutritional value, ulva also holds promise in biotechnological applications. Researchers are exploring its potential in biofuel production, as its rapid growth and high carbohydrate content make it an attractive candidate for renewable energy sources. Furthermore, ulva can be used in wastewater treatment processes, where it helps absorb excess nutrients and improve water quality. This dual benefit of environmental remediation and resource recovery positions ulva as a valuable asset in addressing global sustainability challenges.However, the proliferation of ulva can also lead to ecological imbalances. In some regions, excessive nutrient runoff from agricultural practices has caused ulva blooms, leading to hypoxic conditions that threaten marine life. This phenomenon highlights the need for careful management of coastal ecosystems to ensure that ulva populations remain healthy and beneficial.In conclusion, ulva is a remarkable organism that exemplifies the interconnectedness of marine ecosystems. Its contributions to biodiversity, human nutrition, and sustainability make it a subject of great interest for scientists, chefs, and environmentalists alike. As we continue to explore the potential of ulva and other marine organisms, it is essential to balance their benefits with responsible management practices to protect our oceans for future generations.

海洋生物的世界广阔而多样，充满了在生态系统中发挥重要作用的有机体。其中一种有机体是ulva，通常被称为海生莴苣。这种绿色藻类在沿海水域繁盛，常常附着在岩石上或在海洋中自由漂浮。ulva不仅在生物学上引人入胜，而且在生态和经济上也具有重要意义。在这篇文章中，我将探讨ulva的特征、它在海洋生态系统中的作用以及它对人类使用的潜在好处。ulva的特点是其明亮的绿色和叶状外观，类似于薄片生菜。它属于绿藻门，以其快速生长和适应各种环境条件的能力而闻名。这种适应性使得ulva成为许多沿海栖息地的重要组成部分。它可以在潮间带和亚潮区生长，常常形成密集的垫子，为多种海洋生物提供栖息地和食物。ulva在海洋生态系统中的关键角色之一是其对初级生产的贡献。作为一种光合生物，ulva将阳光转化为能量，产生氧气和有机物，这些物质作为食物供草食性动物如蜗牛、螃蟹和某些鱼类食用。这些草食动物又支持食物链中的更高营养级别，包括更大的鱼类和海鸟等捕食者。因此，ulva在维持海洋生物多样性方面发挥着至关重要的作用。除了其生态意义外，ulva还因其在人类产业中的潜在用途而受到关注。几个世纪以来，它在各种文化中被用作食物，尤其是在亚洲美食中。富含维生素、矿物质和抗氧化剂，ulva被许多营养学家视为超级食品。其烹饪多样性使其可以用于沙拉、汤甚至作为菜肴中的天然增稠剂。此外，随着人们对可持续食品来源的兴趣日益增加，ulva可能成为未来饮食中的重要成分，因为越来越多的人寻求植物性选择。除了其营养价值外，ulva在生物技术应用中也具有前景。研究人员正在探索其在生物燃料生产中的潜力，因为其快速生长和高碳水化合物含量使其成为可再生能源的有吸引力的候选者。此外，ulva还可以用于废水处理过程中，帮助吸收过剩的养分并改善水质。这种环境修复和资源回收的双重好处使得ulva成为应对全球可持续发展挑战的重要资产。然而，ulva的过度繁殖也可能导致生态失衡。在某些地区，农业实践造成的过量养分径流导致ulva的暴发，造成缺氧条件，威胁海洋生物。这一现象凸显了需要对沿海生态系统进行仔细管理，以确保ulva种群保持健康和有益。总之，ulva是一种非凡的有机体，体现了海洋生态系统的相互联系。它对生物多样性、人类营养和可持续发展的贡献使其成为科学家、厨师和环保人士关注的主题。当我们继续探索ulva和其他海洋生物的潜力时，平衡其利益与负责任的管理实践以保护我们的海洋是至关重要的，以便为后代留住这些资源。