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单词 epicotyl
释义

Definition of epicotyl in English:

epicotyl

noun ˌɛpɪˈkɒtɪlˌepəˈkädl
Botany
  • The region of an embryo or seedling stem above the cotyledon.

    〔植〕上胚轴

    Example sentencesExamples
    • These enzymes have also been detected in a wide range of plant organs and tissues undergoing developmental changes such as seeds, cotyledons, elongating epicotyls, and in freshly harvested asparagus spears.
    • In addition, they have four or five scaly leaves with lateral buds on their epicotyl.
    • The number of embryos developing an epicotyl was determined after 9 weeks in germination.
    • However, in coleoptiles, hypocotyls and epicotyls, gravity can be perceived along the whole length of the responding region and there is no such need to postulate any longitudinal transfer of a message.
    • At this stage, both the cotyledons and epicotyls (if visible) were green.

Definition of epicotyl in US English:

epicotyl

nounˌepəˈkädl
Botany
  • The region of an embryo or seedling stem above the cotyledon.

    〔植〕上胚轴

    Example sentencesExamples
    • At this stage, both the cotyledons and epicotyls (if visible) were green.
    • The number of embryos developing an epicotyl was determined after 9 weeks in germination.
    • These enzymes have also been detected in a wide range of plant organs and tissues undergoing developmental changes such as seeds, cotyledons, elongating epicotyls, and in freshly harvested asparagus spears.
    • In addition, they have four or five scaly leaves with lateral buds on their epicotyl.
    • However, in coleoptiles, hypocotyls and epicotyls, gravity can be perceived along the whole length of the responding region and there is no such need to postulate any longitudinal transfer of a message.
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更新时间:2025/2/20 21:34:42