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词汇 sclerenchyma
释义

Definition of sclerenchyma in English:

sclerenchyma

noun skləˈrɛŋkɪməˌsklɪəˈrɛŋkɪməskləˈrɛŋkəmə
mass nounBotany
  • Strengthening tissue in a plant, formed from cells with thickened, typically lignified, walls.

    〔植〕厚壁组织

    Example sentencesExamples
    • The exodermis and underlying layer of heavily lignified sclerenchyma of Oryza sativa is a constitutive feature.
    • It had larger cells and more sclerenchyma and collenchyma (supporting tissue) in between the vascular bundle and epidermal cells.
    • In Cayenne, development of a solid, lignified disk of sclerenchyma across the receptacle was positively associated with ease of separation in a comparison of an easy pick and a hard pick genotypes.
    • Many of the genera in this large clade contain stone cells, accretions of sclerenchyma that occur in the fleshy part of the berry.
    • In addition, vascular sclerenchyma associated with leaf traces retained fluorescein even after prolonged rinsing.

Derivatives

  • sclerenchymatous

  • adjective ˌsklɪərɛŋˈkɪmətəs
    Botany
    • A conspicuous anatomical feature associated with pepper fruit ripening was the development of a plate of sclerenchymatous tissue in the separation zone.
      Example sentencesExamples
      • At regions around the petioles that overlie major vascular bundles in both species the surface tissues do not separate from the underlying sclerenchymatous cells and no ice masses form there.
      • The inner sheath, termed the sclerenchymatous bundle or mestome sheath, is colourless and contains thickened walls and extensive suberin lamella.
      • Hence, wall preparations used for analyses still contained the walls of rhizodermal, exodermal, and sclerenchymatous cells.
      • The structural reinforcement of the sclerenchymatous tegmen and lignified endotesta also appears to be responsible for the unrolling of the recurved margins during imbibition.

Origin

Mid 19th century: modern Latin, from Greek sklēros 'hard' + enkhuma 'infusion', on the pattern of parenchyma.

Definition of sclerenchyma in US English:

sclerenchyma

nounskləˈreNGkəməskləˈrɛŋkəmə
Botany
  • Strengthening tissue in a plant, formed from cells with thickened, typically lignified, walls.

    〔植〕厚壁组织

    Example sentencesExamples
    • It had larger cells and more sclerenchyma and collenchyma (supporting tissue) in between the vascular bundle and epidermal cells.
    • The exodermis and underlying layer of heavily lignified sclerenchyma of Oryza sativa is a constitutive feature.
    • In addition, vascular sclerenchyma associated with leaf traces retained fluorescein even after prolonged rinsing.
    • Many of the genera in this large clade contain stone cells, accretions of sclerenchyma that occur in the fleshy part of the berry.
    • In Cayenne, development of a solid, lignified disk of sclerenchyma across the receptacle was positively associated with ease of separation in a comparison of an easy pick and a hard pick genotypes.

Origin

Mid 19th century: modern Latin, from Greek sklēros ‘hard’ + enkhuma ‘infusion’, on the pattern of parenchyma.

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