mesophyll

简明释义

英[/ˈmɛsəˌfɪl/]美[/ˈmɛsəˌfɪl/]

n. [植] 叶肉

英英释义

单词用法

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反义词

例句

1.The mesophyll consists of two layers of palisade parenchyma.

叶肉是由两层栅栏薄壁组织组成。

2.The mesophyll is not differentiated into spongy and palisade tissues, but mesophyll near midrib in tip and middle parts of leaf is often lengthened to appear as palisade-liked tissue.

叶肉没有海绵组织和栅栏组织的分化，但叶尖部和叶中部中脉附近的叶肉细胞常伸长，类似栅栏组织细胞。

3.Additionally, the Numbers of stomata and trichomes on the leaf lower-surface increased, and mesophyll cells were looser arranged and its intercellular space was larger.

叶部表皮的表皮毛和气孔器明显增多、叶肉细胞排列较对照结构疏松且细胞间隙大。

4.The leaf anatomic structure indicated that mesophyll was without the differentiation of palisade and sponge tissue. And the mesophyll cell is large and function as water storage.

叶肉细胞没有栅栏组织与海绵组织之分，细胞比较大，有贮水作用。

5.Expression pattern of trans-activated virion sense promoter was similar to that of complementary sense promoter with the high activity in both mesophyll and vascular of leaf vein.

其表达方式与互补链基因启动子相似，即在叶肉及叶脉维管组织均有较高的活性。

6.Generally speaking, the leaves grown in yellow light had more number of mesophyll cells than those grown in red, white, and green light.

其它光质下单位叶面积细胞数目依次为黄、红、白和绿光下的叶片。

7.The other is a will only the juice for processing and sales mesophyll of aloe vera, flat to heartburn, stomach, duodenum ulcers effective.

而另一种是只将叶肉的汁进行加工销售的扁芦荟，对胃酸过多，胃、十二指肠溃疡等症状有效。

8.The middle layer of laminae is brought about either by submarginal initials of by the first cell of the abaxial layer of mesophyll alone or by both of them .

幼叶中层既可由亚边缘原始细胞或远轴层叶肉的第一个细胞单独产生，也可由它们二者共同产生。

9.The chloroplasts are primarily located in the mesophyll 叶肉细胞 of the leaf.

叶绿体主要位于叶子的mesophyll 叶肉细胞中。

10.Photosynthesis occurs mainly in the palisade mesophyll 叶肉组织 cells.

光合作用主要发生在栅栏mesophyll 叶肉组织细胞中。

11.In many plants, the mesophyll 叶肉 is divided into two layers.

在许多植物中，mesophyll 叶肉分为两层。

12.The efficiency of photosynthesis is influenced by the thickness of the mesophyll 叶肉层.

光合作用的效率受mesophyll 叶肉层厚度的影响。

13.The spongy mesophyll 海绵叶肉 helps in gas exchange within the leaf.

海绵mesophyll 海绵叶肉有助于叶内气体交换。

作文

The process of photosynthesis is fundamental to life on Earth, and it primarily occurs in the leaves of plants. Within these leaves lies a specialized tissue known as mesophyll, which plays a crucial role in the conversion of light energy into chemical energy. The mesophyll (叶肉) is located between the upper and lower epidermis of the leaf and is composed of two main types of cells: palisade mesophyll and spongy mesophyll. The palisade mesophyll consists of tightly packed cells that contain a high concentration of chloroplasts, the organelles responsible for capturing sunlight. This arrangement allows for maximum light absorption, making the palisade layer highly efficient in photosynthesis. In contrast, the spongy mesophyll has a more loosely arranged structure with air spaces that facilitate gas exchange. This design enables carbon dioxide to diffuse into the leaf and oxygen to exit, both of which are vital for the photosynthetic process.The presence of mesophyll (叶肉) is essential for plant health and growth. Without this specialized tissue, plants would struggle to produce the energy they need to survive. The efficiency of photosynthesis in the mesophyll directly affects the overall productivity of the plant. Furthermore, the adaptability of different types of mesophyll in various plant species showcases the incredible diversity of life. For instance, aquatic plants may have a different structure of mesophyll compared to desert plants, reflecting their unique environmental adaptations.In addition to its role in photosynthesis, the mesophyll also contributes to transpiration, the process by which water vapor is released from the plant into the atmosphere. This process is crucial for maintaining the plant's internal temperature and facilitating nutrient transport from the roots to the leaves. The balance between photosynthesis and transpiration is vital for the plant's overall health and ability to thrive in its environment.Moreover, understanding the structure and function of mesophyll (叶肉) can have significant implications for agriculture and horticulture. By enhancing the efficiency of photosynthesis through genetic modifications or selective breeding, scientists aim to create crop varieties that can produce higher yields even in challenging conditions. This research is particularly important in the context of climate change, where fluctuating weather patterns and resource scarcity pose threats to global food security.In conclusion, the mesophyll (叶肉) is a remarkable adaptation that underscores the complexity of plant biology. Its dual role in photosynthesis and transpiration highlights the intricate balance that exists within ecosystems. As we continue to explore the functions of plant tissues like mesophyll, we gain valuable insights that can help us address pressing challenges in agriculture and environmental sustainability. The study of mesophyll not only enhances our understanding of plant life but also reminds us of the interconnectedness of all living organisms on our planet.

光合作用是地球上生命的基础，主要发生在植物的叶子中。在这些叶子中，有一种特殊的组织被称为mesophyll（叶肉），它在将光能转化为化学能的过程中起着至关重要的作用。mesophyll位于叶子的上下表皮之间，由两种主要类型的细胞组成：栅栏叶肉和海绵叶肉。栅栏叶肉由紧密排列的细胞组成，含有高浓度的叶绿体，这些细胞是负责捕捉阳光的细胞器。这种排列方式使得光的吸收达到最大化，使得栅栏层在光合作用中非常高效。相反，海绵叶肉则具有更松散的结构，内部有空气间隙，便于气体交换。这种设计使得二氧化碳能够扩散进叶子，而氧气能够排出，这两者对光合作用至关重要。mesophyll（叶肉）的存在对植物的健康和生长至关重要。如果没有这种特殊的组织，植物将很难产生其生存所需的能量。mesophyll中的光合作用效率直接影响植物的整体生产力。此外，不同植物物种中mesophyll的不同类型的适应性展示了生命的惊人多样性。例如，水生植物的mesophyll结构可能与沙漠植物不同，反映了它们独特的环境适应性。除了在光合作用中的作用外，mesophyll还促进蒸腾作用，即水蒸气从植物释放到大气中的过程。这个过程对于维持植物的内部温度和促进营养物质从根部运输到叶子至关重要。光合作用与蒸腾作用之间的平衡对植物的整体健康和在其环境中茁壮成长至关重要。此外，理解mesophyll（叶肉）的结构和功能对农业和园艺有重要意义。通过基因修饰或选择性育种来提高光合作用的效率，科学家旨在创造出即使在困难条件下也能产生更高产量的作物品种。这项研究在气候变化的背景下尤为重要，因为气候波动和资源稀缺对全球粮食安全构成威胁。总之，mesophyll（叶肉）是一种非凡的适应，突显了植物生物学的复杂性。它在光合作用和蒸腾作用中的双重角色凸显了生态系统中存在的微妙平衡。当我们继续探索植物组织如mesophyll的功能时，我们获得了宝贵的见解，这些见解可以帮助我们应对农业和环境可持续性方面的紧迫挑战。对mesophyll的研究不仅增强了我们对植物生命的理解，还提醒我们地球上所有生物体之间的相互联系。