cambium

简明释义

英[ˈkæmbɪəm]美[ˈkæmbɪəm]

n. [植] 形成层；新生组织

复 数 c a m b i a 或 c a m b i u m s

英英释义

单词用法

同义词

反义词

例句

1.Results identified that the adventitious root primordia originated from the vascular cambium cells.

结果表明：试管苗不定根的根原基发生于形成层。

2.The influences of several biochemical substance in cambium of grafted trees were investigated to reveal the survival mechanism of grafting.

为了研究大扁杏嫁接部位形成层相关生化物质含量变化对其成活的影响，探讨杏树嫁接成活机理。

3.Wood is the product of cambial activity in trees, and the seasonal activity style of cambium directly influences wood biomass production, structures and properties.

木材（次生木质部）是树木形成层细胞分化的产物，形成层的活动方式不仅影响木材的产量，而且影响木材的结构和性质。

4.A tissue produced inwardly by the cork cambium.

栓内层在内部由软木新生层产生的组织。

5.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。

6.Meanwhile, paraffin-cut section method was used for studying on callus formation, cork cambium and vascular cambium initiation.

同时，运用石蜡切片法研究剥皮后愈伤组织的形成、木栓形成层和维管形成层的发生；

7.In woody plants, tissues outside of the vascular cambium.

木本植物维管形成层外部的组织。

8.The growth of the tree's diameter is largely due to the activity of the cambium.

树木直径的增长主要归因于形成层的活动。

9.In spring, the cambium becomes more active, leading to new wood formation.

在春季，形成层变得更加活跃，导致新木材的形成。

10.The cambium layer is crucial for the secondary growth of plants.

形成层层对植物的次生生长至关重要。

11.When a tree is damaged, the cambium can sometimes regenerate.

当树木受损时，形成层有时可以再生。

12.The cambium produces new phloem and xylem cells each year.

形成层每年产生新的韧皮部和木质部细胞。

作文

The world of plants is a fascinating realm that showcases incredible adaptability and resilience. One of the most remarkable aspects of plant growth lies in the presence of a specialized tissue known as cambium, which plays a crucial role in the development and maintenance of plant structures. The cambium is a layer of meristematic tissue found between the xylem and phloem in vascular plants, responsible for secondary growth, which increases the thickness of stems and roots. This process is essential for woody plants, allowing them to grow taller and stronger over time. Understanding the function of cambium helps us appreciate how trees and shrubs can thrive in diverse environments. As the cambium produces new cells, it contributes to the formation of secondary xylem (wood) and secondary phloem (bark). The xylem transports water and nutrients from the roots to the leaves, while the phloem distributes the products of photosynthesis throughout the plant. This dynamic system ensures that the plant remains healthy and capable of withstanding environmental stresses. Moreover, the activity of the cambium is influenced by various factors, including temperature, moisture, and light availability. During the growing season, when conditions are favorable, the cambium is highly active, leading to significant increases in plant girth. Conversely, during periods of dormancy, such as winter, the activity slows down, resulting in a temporary halt in growth. This cyclical pattern of growth and dormancy is vital for the survival of many plant species, allowing them to conserve resources during unfavorable conditions. The significance of cambium extends beyond individual plants; it also plays a critical role in ecosystems. Trees, with their extensive root systems and towering canopies, provide habitats for countless species and contribute to the overall health of the environment. By understanding the role of cambium, we can better appreciate how trees contribute to carbon sequestration, soil stabilization, and biodiversity. In addition, the study of cambium has practical implications in forestry and horticulture. Knowledge of how this tissue functions allows for improved practices in tree cultivation and management. For instance, understanding the timing of cambium activity can help foresters determine the best times for pruning or harvesting trees, ensuring that these activities do not adversely affect the plant's growth and health. In conclusion, the cambium is a vital component of plant biology, facilitating growth and adaptation in a constantly changing environment. Its role in secondary growth not only supports individual plant health but also contributes to the stability and diversity of ecosystems. By studying the cambium, we gain insights into the intricate relationships between plants and their surroundings, highlighting the importance of preserving our natural world for future generations.

植物的世界是一个迷人的领域，展示了令人难以置信的适应能力和韧性。植物生长中最显著的方面之一在于一种特殊组织的存在，这就是被称为形成层的组织，它在植物结构的发展和维持中起着至关重要的作用。形成层是一种分生组织，位于木质部和韧皮部之间，负责次生生长，从而增加茎和根的厚度。这一过程对于木本植物至关重要，使它们能够随着时间的推移而长得更高、更强。 理解形成层的功能有助于我们欣赏树木和灌木如何在多样化的环境中茁壮成长。当形成层产生新的细胞时，它有助于形成次生木质部（木材）和次生韧皮部（树皮）。木质部将水分和养分从根部运输到叶子，而韧皮部则将光合作用的产物分配到植物的各个部分。这一动态系统确保植物保持健康，能够承受环境压力。 此外，形成层的活动受到温度、湿度和光照等多种因素的影响。在生长季节，当条件良好时，形成层的活动非常活跃，导致植物的直径显著增加。相反，在冬季等休眠期，活动会减缓，导致生长暂时停止。这种生长和休眠的周期模式对于许多植物物种的生存至关重要，使它们能够在不利条件下节约资源。 形成层的重要性不仅限于个体植物；它在生态系统中也发挥着关键作用。树木拥有广泛的根系和高耸的树冠，为无数物种提供栖息地，并有助于环境的整体健康。通过理解形成层的作用，我们可以更好地欣赏树木对碳汇、土壤稳定和生物多样性的贡献。 此外，研究形成层在林业和园艺中具有实际意义。了解这种组织的功能可以改善树木栽培和管理的实践。例如，了解形成层活动的时机可以帮助林务员确定修剪或采伐树木的最佳时机，确保这些活动不会对植物的生长和健康产生不利影响。 总之，形成层是植物生物学的一个重要组成部分，促进了植物在不断变化的环境中的生长和适应。它在次生生长中的作用不仅支持个体植物的健康，还促进了生态系统的稳定和多样性。通过研究形成层，我们获得了对植物与其环境之间复杂关系的深刻见解，突显了保护我们自然世界的重要性，以便为后代留存。