meristematic

简明释义

英[ˌmerɪstɪˈmætɪk]美[merɪstəˈmætɪk]

adj. 分生组织的

英英释义

单词用法

同义词

反义词

例句

1.The results of GUS staining showed that NPC2 expressed mainly in meristematic zone, elongation zone and vascular tissue of maturation zone of root tip;

GUS染色显示NPC2在根中主要是在根尖分生区和伸长区表达，在成熟区主要是在维管组织中表达；

2.The para-nodule was composed of epidermis cells, cortex cells and meristematic cells.

类根瘤由表皮细胞、皮层细胞和分生细胞组成。

3.The middle region was composed of meristematic tissue whose cells had high proliferative activity (Plate Ib).

中层区是由增殖能力旺盛的分生组织细胞所构成；

4.The vascular cambium extends to form a complete ring of meristematic tissue around the stem, the separate vascular bundles being linked by interfascicular cambium.

维管形成层向两侧延伸直至形成一个茎内的分生组织环，各个维管束被束间形成层联系在一起。

5.Potassium antimonate was employed to ultrastructurally locate calcium ions in seminal root apical meristematic cells of maize seedings subjected to flooding stress.

采用焦锑酸钾沉淀法，对遭受淹水胁迫的玉米幼苗初生根根尖分生细胞内钙离子分布变化情况进行了电镜细胞化学观察。

6.Calyptogen a layer of meristematic cells covering the root apical meristem in some plants (e. g. grasses) that gives rise to and maintains the root cap.

根冠原：在一些植物中覆盖根顶端分生组织的一层具有分生能力的细胞，根冠原可以产生和维持根冠。

7.Cytological observations showed that mesophyll cells were greatly enlarged, undergoing repeated cell divisions, then forming meristematic mass, from which buds were initiated.

细胞学观察表明，培养后叶肉细胞明显增大，细胞分裂形成分生组织，由之形成芽原基。

8.Meristematic nodules are tissues with distinct status during plant in vitro development and thus provide an important regeneration pathway via organogenesis.

分生结节是植物组织离体发育的一种特殊状态，也是一种有价值的植株再生途径。

9.The meristematic 分生组织 region is responsible for the continuous growth of plants.

该分生组织 区域负责植物的持续生长。

10.Researchers are investigating how environmental factors affect meristematic 分生组织 activity in various plant species.

研究人员正在调查环境因素如何影响各种植物物种中的分生组织 活动。

11.The study of plant growth often focuses on the role of meristematic 分生组织 tissues in producing new cells.

植物生长的研究通常关注于分生组织 在产生新细胞中的作用。

12.In botany, meristematic 分生组织 cells are essential for the formation of roots and shoots.

在植物学中，分生组织 细胞对根和芽的形成至关重要。

13.Genetic modifications can enhance the growth rate of meristematic 分生组织 tissues in crops.

基因改良可以增强作物中分生组织 组织的生长速度。

作文

In the world of botany, understanding the structure and function of plants is crucial. One of the most fascinating aspects of plant biology is the concept of growth, which primarily occurs in specific regions known as meristems. These regions are composed of cells that are capable of continuous division, allowing for the growth and development of various plant structures. The term meristematic refers to these undifferentiated cells that can give rise to different types of tissues in plants. This unique ability makes them essential for plant growth, regeneration, and adaptation to their environment.Meristematic tissues can be classified into three main types: apical meristems, lateral meristems, and intercalary meristems. Apical meristems are located at the tips of roots and shoots, facilitating vertical growth. This type of meristematic tissue is responsible for the elongation of the plant, allowing it to reach sunlight and nutrients more effectively. On the other hand, lateral meristems, such as the vascular cambium and cork cambium, contribute to the thickness of the plant by adding layers of new cells. This secondary growth is particularly important for woody plants, enabling them to support greater weight and withstand environmental stresses.Intercalary meristems are found in certain plants, such as grasses, and are located at the base of leaves or internodes. They allow for rapid growth and regrowth after cutting or grazing, showcasing the adaptability of plants in various ecosystems. The presence of meristematic tissues in these regions ensures that the plant can recover quickly, making it resilient against herbivores and environmental changes.The study of meristematic tissues is not only significant for understanding plant biology but also has practical applications in agriculture and horticulture. For instance, plant propagation techniques often rely on the manipulation of meristematic cells to produce clones of desirable plant varieties. By inducing the formation of new shoots or roots from these tissues, horticulturists can efficiently produce large numbers of plants with specific traits, such as disease resistance or improved yield.Moreover, research into meristematic cells has implications for biotechnology. Scientists are exploring ways to harness the regenerative capabilities of these cells to develop new methods for growing plants in challenging environments, such as arid regions or areas with poor soil quality. By understanding how meristematic tissues respond to stress and environmental factors, researchers can potentially engineer plants that are more resilient and sustainable.In conclusion, the concept of meristematic tissues is fundamental to our understanding of plant growth and development. These unique cells play a vital role in the life cycle of plants, enabling them to grow, adapt, and regenerate. As we continue to explore the potential of meristematic tissues in various fields, we gain valuable insights that can lead to advancements in agriculture, horticulture, and environmental sustainability. The study of these remarkable cells not only enhances our knowledge of plant biology but also opens up new possibilities for improving food security and managing natural resources effectively.

在植物学的世界中，理解植物的结构和功能至关重要。植物生物学中一个最迷人的方面是生长的概念，这主要发生在被称为分生组织的特定区域。这些区域由能够持续分裂的细胞组成，允许各种植物结构的生长和发育。术语meristematic指的是这些未分化的细胞，它们能够产生植物中的不同类型组织。这种独特的能力使它们对植物的生长、再生和适应环境至关重要。分生组织可以分为三种主要类型：顶端分生组织、侧生分生组织和间生分生组织。顶端分生组织位于根和茎的顶端，促进垂直生长。这种类型的meristematic组织负责植物的延伸，使其能够更有效地获取阳光和养分。另一方面，侧生分生组织，如维管形成层和皮层形成层，通过添加新细胞层来增加植物的厚度。这种次生生长对于木本植物尤为重要，使它们能够支撑更大的重量并抵御环境压力。间生分生组织存在于某些植物中，如草类，位于叶子或节间的基部。它们允许快速生长和在修剪或放牧后再生，展示了植物在各种生态系统中的适应能力。这些区域中meristematic组织的存在确保了植物能够迅速恢复，使其能够抵御食草动物和环境变化。对meristematic组织的研究不仅对理解植物生物学具有重要意义，而且在农业和园艺中也有实际应用。例如，植物繁殖技术通常依赖于对meristematic细胞的操控，以生产出理想植物品种的克隆。通过诱导这些组织形成新的芽或根，园艺师可以有效地生产大量具有特定特征（如抗病性或提高产量）的植物。此外，对meristematic细胞的研究对生物技术也有影响。科学家们正在探索利用这些细胞的再生能力，开发在困难环境中生长植物的新方法，例如干旱地区或土壤质量差的地区。通过了解meristematic组织如何对压力和环境因素作出反应，研究人员可以潜在地工程出更具韧性和可持续性的植物。总之，meristematic组织的概念是我们理解植物生长和发育的基础。这些独特的细胞在植物的生命周期中发挥着至关重要的作用，使其能够生长、适应和再生。随着我们继续探索meristematic组织在各个领域的潜力，我们获得了宝贵的见解，这可能导致农业、园艺和环境可持续性方面的进步。这些非凡细胞的研究不仅增强了我们对植物生物学的知识，而且为改善粮食安全和有效管理自然资源开辟了新的可能性。