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词汇 plasmodesma
释义

Definition of plasmodesma in English:

plasmodesma

nounPlural plasmodesmata ˌplazmə(ʊ)ˈdɛzməˌplazməˈdesmə
Botany
  • A narrow thread of cytoplasm that passes through the cell walls of adjacent plant cells and allows communication between them.

    〔植〕胞间连丝

    Example sentencesExamples
    • It may traverse the root either through the cytoplasm of cells linked by plasmodesmata (the symplast) or through the spaces between cells (the apoplast).
    • The unstained region around the periphery of most cells was almost certainly an artefact of plasmolysis, indicated by occasional contact points between plasmalemma and cell wall plasmodesmata.
    • The symplastic path is mediated by plasmodesmata which bridge the cell walls between adjacent cells so that a cytoplasmic continuum is formed.
    • Plant learning increases vasculature and increased communication between cells through plasmodesmata.
    • Hence, stromules may possibly be considered as organellar analogues of plasmodesmata, the cytoplasmic connections that join plant cells in many tissues.

Origin

Early 20th century: from German Plasmodesma, from late Latin plasma 'mould, formation' + Greek desma 'bond, fetter'.

Definition of plasmodesma in US English:

plasmodesma

nounˌplazməˈdesmə
Botany
  • A narrow thread of cytoplasm that passes through the cell walls of adjacent plant cells and allows communication between them.

    〔植〕胞间连丝

    Example sentencesExamples
    • Hence, stromules may possibly be considered as organellar analogues of plasmodesmata, the cytoplasmic connections that join plant cells in many tissues.
    • It may traverse the root either through the cytoplasm of cells linked by plasmodesmata (the symplast) or through the spaces between cells (the apoplast).
    • Plant learning increases vasculature and increased communication between cells through plasmodesmata.
    • The unstained region around the periphery of most cells was almost certainly an artefact of plasmolysis, indicated by occasional contact points between plasmalemma and cell wall plasmodesmata.
    • The symplastic path is mediated by plasmodesmata which bridge the cell walls between adjacent cells so that a cytoplasmic continuum is formed.

Origin

Early 20th century: from German Plasmodesma, from late Latin plasma ‘mold, formation’ + Greek desma ‘bond, fetter’.

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