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单词 true leaf
释义

Definition of true leaf in English:

true leaf

noun
Botany
  • A foliage leaf of a plant, as opposed to a seed leaf or cotyledon.

    〔植〕真叶

    Example sentencesExamples
    • Sectoring events were observed in roots, cotyledons and the first true leaves, but no systematic description of sector frequency, sector size or any other parameter was undertaken.
    • Arabidopsis seedlings grown on media containing 300 mM glucose or sucrose fail to become green or to develop expanded cotyledons or true leaves.
    • The embryo is comprised of the embryonic axis (incorporating the embryonic root and the hypocotyl), a single cotyledon, containing the first true leaves, and the scutellum.
    • Plants overexpressing both R and GL1 produce many trichomes on cotyledon and hypocotyl surfaces and more trichomes on true leaves than plants overexpressing R alone.
    • In the study of leaf growth and flowering time, pre-cultivation ended after 14 d when the plants had two true leaves with petioles.

Definition of true leaf in US English:

true leaf

noun
Botany
  • A foliage leaf of a plant, as opposed to a seed leaf or cotyledon.

    〔植〕真叶

    Example sentencesExamples
    • Sectoring events were observed in roots, cotyledons and the first true leaves, but no systematic description of sector frequency, sector size or any other parameter was undertaken.
    • Arabidopsis seedlings grown on media containing 300 mM glucose or sucrose fail to become green or to develop expanded cotyledons or true leaves.
    • The embryo is comprised of the embryonic axis (incorporating the embryonic root and the hypocotyl), a single cotyledon, containing the first true leaves, and the scutellum.
    • In the study of leaf growth and flowering time, pre-cultivation ended after 14 d when the plants had two true leaves with petioles.
    • Plants overexpressing both R and GL1 produce many trichomes on cotyledon and hypocotyl surfaces and more trichomes on true leaves than plants overexpressing R alone.
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更新时间:2024/12/26 13:49:50