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单词 stomatal
释义

stomatal /'stəʊmət(ə)l/

英汉-汉英词典
adj. 有气孔的;气孔的
词组 | 习惯用语
stomatal apparatus 气孔器
英语例句库
  1. Stomatal, dispersed shrinkage, shrinkage cavity, sonim and slag inclusion belong to this kind of defect.
    属于这种类型的缺陷有气孔、缩松、缩孔、夹砂、夹渣等。
  2. The distribution of stomatal apparatus and ceraceous ornamentation of the white squama-shaped leaf of Chamaecyparis pisfera spach were special.
    日本花柏白色鳞形叶的气孔分布和蜡质纹饰都有一定的特殊性。
  3. Abstract: Using Improved serape-making method,the studies were made on the stomatal density of flag leaves of rice.
    摘 要: 用改良刮制法研究了水稻剑叶的气孔密度。
  4. Antitranspirant A chemical that reduces transpiration. Antitranspirants may work by depositing a waterproof film over the stomata or by inducing stomatal closure.
    可以减少蒸腾作用的化学物质。抗蒸腾剂可以通过沉积气孔上的防水膜或诱导气孔关闭起作用
  5. A large amount of research results showed that plants show isohydric behavior when the plant hydraulic and chemical signals cooperate to promote the stomatal regulation of leaf water potential.
    当植物水力信号和化学信号共同作用促进气孔对叶水势的调节时,植物对叶水势的调节表现为等水行为。

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英语百科

Stoma

Stoma in a tomato leaf shown via colorized scanning electron microscope image
A stoma in cross section
The underside of a leaf. In this species (Tradescantia zebrina) the stomata appear green (due to chlorophyll) while the epidermal cells appear red due to additional pigmentation.
Electron micrograph of a stoma from a Brassica chinensis (Bok Choy) leaf

In botany, a stoma (plural "stomata"), also called a stomate (plural "stomates") (from Greek στόμα, "mouth"), is a pore, found in the epidermis of leaves, stems, and other organs, that is used to control gas exchange.

The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. The term is also used collectively to refer to an entire stomatal complex, both the pore itself and its accompanying guard cells. Air enters the plant through these openings, and contains carbon dioxide and oxygen, which are used in photosynthesis and respiration, respectively. Oxygen produced as a by-product of photosynthesis diffuses out to the atmosphere through these same openings. Also, water vapor is released into the atmosphere through these pores in a process called transpiration.

近义、反义、联想词
近义词
adj.
stoma, stomate, pore

联想词
photosynthesis光合作用;respiration呼吸;basal基础的;apical顶上的, 顶点的;leaf叶子;germination萌芽,发生;salinity盐度;fluxes流动;
英英词典
stomatal adj.
  1. relating to or of the nature of or having a mouth or mouthlike opening

  2. synonymous: stomatous
  3. relating to or constituting plant stomata
    • stomatal openings

    synonymous: stomatous
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更新时间:2025/6/20 18:28:25