primordium

简明释义

英[praɪˈmɔːdɪəm]美[praɪˈmɔrdɪəm]

n. [胚] 原基；[胚] 始基

复 数 p r i m o r d i a

英英释义

单词用法

同义词

反义词

例句

1.Leaf buttress a leaf primordium, appearing as a protuberance on the side of the stem apex, produced by periclinal division of the tunica and corpus, and associated with a procambium.

顶端分生组织上的侧生突起发育成叶的原基，与原形成层有关。

2.Among different growing periods of Ganoderma lucidum, the mycelium, followed by the spores, the fruiting body and the primordium, has the highest content of germanium.

灵芝发育的不同时期原基锗含量最低；子实体的不同部位菌盖中含锗量最低。

3.Here we report the dynamic, autonomous formation of the optic cup (retinal primordium) structure from a three-dimensional culture of mouse embryonic stem cell aggregates.

在本文中我们报告了视杯(视网膜原始细胞)结构在三维培养介质中的动态的、自发性的成形过程，该培养介质是由鼠胚胎干细胞聚集物组成。

4.Early leaf development is artificially divided into three main stages: the initiation of leaf primordium, the establishment of leaf adaxial-abaxial polarity, and the expansion of leaf blade.

早期叶片发育包括三个主要过程：叶原基的起始，叶片腹背性的建立和叶片的延展。

5.The results showed that the differentiation of floral primordium and flower firstly occurred at the axil of the first leaf.

结果显示花原基分化和开花的起始节位是第一真叶节；

6.The following day the streets of Primordium were alive with gossip and speculation: the death of the Senator had started all kinds of rumours.

第二天，普利摩顿的大街小巷里充满了猜忌和议论：议员的死在引发了各种流言。

7.The primordium of the heart can be identified during the early stages of fetal development.

在胎儿发育的早期阶段，可以识别出心脏的原基。

8.The study of embryology often begins with the analysis of the primordium, which is the initial stage of development.

胚胎学的研究通常从分析原基开始，这是发育的初始阶段。

9.Researchers observed the formation of the primordium in zebrafish to better understand vertebrate development.

研究人员观察了斑马鱼中原基的形成，以更好地理解脊椎动物的发育。

10.In the context of organogenesis, the primordium refers to the early structure that will develop into a specific organ.

在器官发生的背景下，原基指的是将发育成特定器官的早期结构。

11.In some species, the primordium of limbs appears as small buds on the sides of the body.

在某些物种中，四肢的原基表现为身体两侧的小芽。

作文

In the study of biology and embryology, the term primordium refers to an early developmental stage or a precursor structure from which a particular organ or tissue develops. Understanding the concept of primordium is crucial for comprehending how complex organisms evolve from simple cellular structures. The primordium serves as a foundation for organogenesis, the process by which organs are formed during development. For instance, in vertebrates, the heart primordium emerges as a cluster of cells that will eventually differentiate into the various components of the heart, such as the atria and ventricles. This intricate process showcases the remarkable ability of stem cells to specialize and form the diverse tissues necessary for life.The significance of the primordium extends beyond mere biological definitions; it also plays a pivotal role in evolutionary biology. By studying the primordium of different species, scientists can trace back the evolutionary pathways that led to the current diversity of life on Earth. For example, the presence of similar primordium structures across different species suggests a common ancestry, supporting the theory of evolution. This comparative approach allows researchers to understand not only how individual organisms develop but also how species adapt and change over time.In addition to its biological implications, the concept of primordium can be metaphorically applied to various fields, such as literature and art. Just as a primordium represents the initial stage of development in biology, a writer's first draft or an artist's preliminary sketch can be seen as a primordium of their final work. These early forms are essential for the creative process, providing a foundation upon which ideas can grow and evolve. For instance, a novelist may begin with a simple premise—the primordium of a story—that undergoes numerous revisions before reaching its final form. Similarly, an artist's rough outline serves as a primordium that guides the subsequent layers of detail and color.Moreover, the idea of primordium resonates in our personal lives. Each individual has a primordium of experiences, memories, and aspirations that shape who they are. Our childhood, education, and relationships act as primordium for our future selves, influencing our decisions and paths in life. Just as in biology, where the primordium must undergo specific changes to develop properly, we too must navigate challenges and transformations to realize our full potential.In conclusion, the term primordium encapsulates the essence of beginnings, whether in the context of biological development, creative expression, or personal growth. Recognizing the importance of primordium allows us to appreciate the complexity of life and the processes that lead to the formation of intricate systems. As we continue to explore the mysteries of development and evolution, the concept of primordium will undoubtedly remain a key element in our understanding of both the natural world and our own journeys.

在生物学和胚胎学的研究中，术语primordium指的是一个早期发育阶段或一个前体结构，从中发展出特定的器官或组织。理解primordium的概念对于理解复杂生物是如何从简单的细胞结构演变而来的至关重要。primordium作为器官发生的基础，器官发生是指在发育过程中形成器官的过程。例如，在脊椎动物中，心脏primordium作为一群细胞出现，最终将分化为心脏的各个组成部分，如心房和心室。这个复杂的过程展示了干细胞专业化并形成生命所需多样组织的非凡能力。primordium的重要性不仅限于生物学定义；它在进化生物学中也发挥着关键作用。通过研究不同物种的primordium结构，科学家可以追溯到导致地球上当前生命多样性的进化路径。例如，不同物种中存在相似的primordium结构表明共同祖先的存在，支持了进化理论。这种比较方法使研究人员能够理解个体生物是如何发育的，以及物种如何随着时间适应和变化。除了生物学的含义，primordium的概念还可以比喻性地应用于文学和艺术等多个领域。正如primordium代表生物学中的初始发展阶段，作家的初稿或艺术家的初步草图也可以被视为其最终作品的primordium。这些早期形式对于创作过程至关重要，为思想的成长和演变提供了基础。例如，一位小说家可能以一个简单的前提开始——一个故事的primordium——在经历无数次修订后才达到最终形式。同样，艺术家的粗略轮廓作为primordium，指导着后续的细节和颜色层次。此外，primordium的概念在我们的个人生活中也有共鸣。每个人都有一个经历、记忆和愿望的primordium，塑造了他们是谁。我们的童年、教育和关系作为我们未来自我的primordium，影响着我们的决定和人生道路。就像在生物学中，primordium必须经历特定的变化才能正确发展一样，我们也必须应对挑战和转变，以实现我们的全部潜力。总之，术语primordium概括了起源的本质，无论是在生物发育、创造性表达还是个人成长的背景下。认识到primordium的重要性使我们能够欣赏生命的复杂性以及导致复杂系统形成的过程。随着我们继续探索发展和进化的奥秘，primordium的概念无疑将继续成为我们理解自然世界和自身旅程的关键元素。