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单词 collenchyma
释义

Definition of collenchyma in English:

collenchyma

noun kəˈlɛŋkɪməkəˈleNGkəmə
mass nounBotany
  • Tissue strengthened by the thickening of cell walls, as in young shoots.

    Example sentencesExamples
    • In microscope sections note that vascular bundles are reinforced by a bundle of cortical collenchyma that form the characteristic stem ridges in Equisetum.
    • In addition, the xylem - because of its lignification, is a stiffer material compared to the living tissues: phloem, collenchyma and parenchyma.
    • Young axes have higher values of structural Young's modulus than do older stages and this is reflected by the presence of fibre tissues, primary phloem fibres and collenchyma placed near the periphery of young axes.
    • Heat-tolerant fescue PI297901 had larger cells and more sclerenchyma and collenchyma (supporting tissue) in between the vascular bundle and epidermal cells compared with PI283316.
    • The lignified secondary walls could be recognized by a bluish glare (unlignified birefrigent walls, e.g. collenchyma, showed a reddish glare).

Origin

Mid 19th century: from Greek kolla 'glue' + enkhuma 'infusion'.

 
 

Definition of collenchyma in US English:

collenchyma

nounkəˈleNGkəmə
Botany
  • Tissue strengthened by the thickening of cell walls, as in young shoots.

    Example sentencesExamples
    • Young axes have higher values of structural Young's modulus than do older stages and this is reflected by the presence of fibre tissues, primary phloem fibres and collenchyma placed near the periphery of young axes.
    • In microscope sections note that vascular bundles are reinforced by a bundle of cortical collenchyma that form the characteristic stem ridges in Equisetum.
    • The lignified secondary walls could be recognized by a bluish glare (unlignified birefrigent walls, e.g. collenchyma, showed a reddish glare).
    • Heat-tolerant fescue PI297901 had larger cells and more sclerenchyma and collenchyma (supporting tissue) in between the vascular bundle and epidermal cells compared with PI283316.
    • In addition, the xylem - because of its lignification, is a stiffer material compared to the living tissues: phloem, collenchyma and parenchyma.

Origin

Mid 19th century: from Greek kolla ‘glue’ + enkhuma ‘infusion’.

 
 
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更新时间:2024/9/21 8:09:31