lignification

简明释义

英[ˌlɪɡnɪfɪˈkeɪʃən]美[ˌlɪɡnəfɪˈkeɪʃn]

n. 木质化；[植] 木化；[生化] 木质化作用

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例句

1.These genes and polynucleotide sequences are useful regulating the lignification process and plant phenotype.

这些基因和多核苷酸序列适用于调节木质化过程和植物表型。

2.The degree of lignification varies from slight in protoxylem to heavy in sclerenchyma and some xylem vessels, but values of 25-30% lignin and 50% cellulose are average.

不同部位的木质化的程度不同，原生木质部中只有轻微的加厚，而在厚壁组织和一些木质部导管中则进一步加厚，平均含25%-30%的木质素和50%的纤维素。

3.IBA treatment can promote the root elongate growth and the root lignification of M. hupehensis Rehd. 5.

吲哚丁酸能够促进湖北海棠根系导管的分化，使根系的木质化程度增加。

4.The results indicated that along with the formation and lignification of the secondary wall, great changes had taken place in the cell walls.

结果表明，随着细胞次生壁的形成与木质化，细胞壁结构发生较大变化。

5.The present results indicated that POD had participated in the lignification. However, the distribution of POD was not same as the regions of lignin deposition completely.

与木质化过程的比较结果表明，POD参与了细胞壁的木质化过程，但次生壁中木质素的沉积位置并不与POD活性位置一一对应。

6.The experiments, proved that developmental quality of root system of cutting seedling and lignification degree of root system during seedling-laying are key factors to influence survival rate.

本文通过试验证实了扦插根系发育质量与倒苗时根系木质化程度是影响定植苗成活的关键。

7.The secondary growth includes several consecutive processes such as vascular tissue differentiation, secondary cell wall deposition, lignification, PCD and heart wood formation.

次生生长包括维管组织形成、次生细胞壁形成、木质化、PCD以及心材形成等过程。

8.This lignification serves to stiffen and strengthen the cells.

木质化足以使细胞变硬和增强。

9.The process of lignification is crucial for the development of sturdy plant structures.

木质化的过程对坚固植物结构的发展至关重要。

10.During lignification, cellulose in the cell walls is replaced by lignin.

木质化过程中，细胞壁中的纤维素被木质素取代。

11.Researchers study lignification to improve the strength of timber used in construction.

研究人员研究木质化以提高用于建筑的木材强度。

12.In some plants, lignification occurs rapidly in response to environmental stress.

在某些植物中，木质化会迅速发生，以应对环境压力。

13.The study of lignification can reveal how plants adapt to their surroundings.

对木质化的研究可以揭示植物如何适应其环境。

作文

Lignification is a crucial biological process that occurs in plants, involving the deposition of lignin in the cell walls. This process is essential for providing structural support, making plants more resilient against environmental stresses and pathogens. As plants grow, they undergo various stages of development, and during these stages, lignification">lignification plays a pivotal role in transforming soft, flexible tissues into hard, woody structures. This transformation is particularly evident in trees and shrubs, where the accumulation of lignin contributes to their strength and durability. The significance of lignification">lignification extends beyond mere structural integrity. It also enhances water transport within the plant. Lignin is hydrophobic, meaning it repels water, which helps to create a barrier that prevents excessive water loss through evaporation. This is especially important in arid environments where water conservation is vital for survival. Additionally, the presence of lignin in the xylem vessels facilitates the efficient movement of water and nutrients from the roots to the leaves, ensuring that the plant remains healthy and vigorous. Furthermore, lignification">lignification plays a significant role in the ecological interactions between plants and their environment. For instance, the lignified tissues are less palatable to herbivores, which can deter animals from feeding on them. This natural defense mechanism allows plants to thrive in competitive ecosystems, as they can allocate more resources towards growth rather than defense. Moreover, the decomposition of lignified plant materials contributes to soil health and nutrient cycling, as lignin is a complex compound that breaks down slowly, enriching the soil over time. In addition to its ecological importance, lignification">lignification has significant implications for various industries. In forestry, understanding the process of lignification can help in selecting tree species that grow faster and produce higher-quality wood. Similarly, in agriculture, manipulating the lignification process through selective breeding or genetic engineering can lead to crops that are more resistant to pests and diseases, ultimately improving food security. Research into lignification">lignification also opens up new avenues for biotechnological applications. For example, scientists are exploring ways to modify the lignin content in bioenergy crops to enhance their digestibility, making them more suitable for biofuel production. By reducing the lignin content, the biomass can be broken down more easily, leading to higher yields of fermentable sugars. In conclusion, lignification">lignification is not merely a process of cell wall modification; it is a fundamental aspect of plant biology that influences growth, survival, and ecological dynamics. Understanding this process allows us to appreciate the intricate relationships between plants and their environment, as well as the potential applications in agriculture and industry. As we continue to study lignification">lignification, we gain insights that can lead to more sustainable practices in managing our natural resources and enhancing food production. Therefore, the significance of lignification">lignification cannot be overstated, as it serves as a cornerstone for both plant health and human endeavors in agriculture and environmental stewardship.

木质化是植物中发生的一种重要生物过程，涉及木质素在细胞壁中的沉积。这个过程对于提供结构支持至关重要，使植物在环境压力和病原体面前更加坚韧。随着植物的生长，它们经历不同的发展阶段，在这些阶段中，lignification">木质化在将柔软、灵活的组织转变为坚硬、木质结构方面发挥着关键作用。这种转变在树木和灌木中尤为明显，木质素的积累增强了它们的强度和耐久性。 lignification">木质化的重要性不仅仅体现在结构完整性上。它还增强了植物内部的水分运输。木质素是疏水性的，这意味着它能排斥水分，有助于形成一层屏障，防止过多的水分通过蒸发流失。这在干旱环境中尤为重要，因为水分的保存对于生存至关重要。此外，木质素在木质部导管中的存在促进了水分和养分从根部到叶子的有效移动，确保植物保持健康和旺盛。 此外，lignification">木质化在植物与环境之间的生态互动中也发挥着重要作用。例如，木质化的组织对食草动物的可口性较低，这可以阻止动物进食。这种自然防御机制使植物能够在竞争激烈的生态系统中繁荣，因为它们可以将更多资源分配给生长，而不是防御。此外，木质化植物材料的分解有助于土壤健康和养分循环，因为木质素是一种复杂的化合物，分解速度较慢，随着时间的推移丰富土壤。 除了生态重要性外，lignification">木质化对各个行业也具有重要意义。在林业中，理解木质化过程可以帮助选择生长更快、木材质量更高的树种。同样，在农业中，通过选择性育种或基因工程操控木质化过程，可以培育出对害虫和疾病更具抵抗力的作物，从而最终改善粮食安全。 对lignification">木质化的研究还为生物技术应用开辟了新途径。例如，科学家们正在探索通过改变生物能源作物中的木质素含量来提高其可消化性，从而使其更适合用于生物燃料生产。通过降低木质素含量，生物质可以更容易地被分解，从而产生更多可发酵的糖分。 总之，lignification">木质化不仅仅是细胞壁修饰的过程；它是植物生物学的一个基本方面，影响着植物的生长、生存和生态动态。理解这一过程使我们能够欣赏植物与其环境之间的复杂关系，以及在农业和工业中的潜在应用。随着我们继续研究lignification">木质化，我们获得的见解可以导致在管理自然资源和增强粮食生产方面采取更可持续的实践。因此，lignification">木质化的重要性不容小觑，因为它为植物健康和人类在农业及环境管理中的努力奠定了基础。