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词汇 endodermis
释义

Definition of endodermis in English:

endodermis

nounɛndəʊˈdəːmɪs
mass nounBotany
  • An inner layer of cells in the cortex of a root and of some stems, surrounding a vascular bundle.

    〔植〕内皮层

    Example sentencesExamples
    • The chemical composition of cell walls from endodermis and hypodermis was analysed.
    • The endodermis surrounding the vascular cylinder of the corm effectively blocked outward diffusion of the solutes.
    • On analysis of freeze-dried sections of flower stem, these cells were identified as large, elongated cells situated between the phloem of every vascular bundle and the endodermis.
    • There were no visible differences in the development of endodermis between the two varieties and growth conditions.
    • It was shown to be localized to root endodermis and flowers.

Origin

Early 20th century: from endo- 'within' + modern Latin dermis 'skin'.

Definition of endodermis in US English:

endodermis

nounˌendōˈdərməs
Botany
  • An inner layer of cells in the cortex of a root and of some stems, surrounding a vascular bundle.

    〔植〕内皮层

    Example sentencesExamples
    • The chemical composition of cell walls from endodermis and hypodermis was analysed.
    • The endodermis surrounding the vascular cylinder of the corm effectively blocked outward diffusion of the solutes.
    • It was shown to be localized to root endodermis and flowers.
    • On analysis of freeze-dried sections of flower stem, these cells were identified as large, elongated cells situated between the phloem of every vascular bundle and the endodermis.
    • There were no visible differences in the development of endodermis between the two varieties and growth conditions.

Origin

Early 20th century: from endo- ‘within’ + modern Latin dermis ‘skin’.

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