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单词 ligule
释义

Definition of ligule in English:

ligule

noun ˈlɪɡjuːlˈlɪɡjul
Botany
  • A narrow strap-shaped part of a plant, especially a membranous scale on the inner side of the leaf sheath at its junction with the blade in most grasses and sedges.

    〔植〕舌叶,舌状体,叶舌,舌片

    Example sentencesExamples
    • All experimentation was done using the expanding second true maize leaf blade at a stage before growth of the leaf sheath, which is seen as displacement of the ligule from the leaf base.
    • Ray florets are much larger, with an 8-12 mm long, yellow, three-lobed, strap-shaped ligule surmounting a short corolla tube.
    • Indeed, it has been noted that tyloses appeared to hinder, but not entirely block, the movement of radiolabelled amino acids in the xylem sap at the ligule of senescent leaves of Lolium temulentum.
    • Hopi confers pigmentation to a wide variety of plant tissues, including pericarp, root, mesocotyl, and leaf blade in the seedling, midrib, ligule, leaf blade, and anthers in the mature plant.
    • Stem height was defined as the length between insertion of the first adventitious roots and the top of the spike, and ligule height as the height of the ligule of the corresponding leaf.

Origin

Early 19th century: from Latin ligula 'strap'.

Definition of ligule in US English:

ligule

nounˈlɪɡjulˈliɡyo͞ol
Botany
  • A narrow strap-shaped part of a plant, especially, in most grasses and sedges, a membranous scale on the inner side of the leaf sheath at its junction with the blade.

    〔植〕舌叶,舌状体,叶舌,舌片

    Example sentencesExamples
    • Ray florets are much larger, with an 8-12 mm long, yellow, three-lobed, strap-shaped ligule surmounting a short corolla tube.
    • Indeed, it has been noted that tyloses appeared to hinder, but not entirely block, the movement of radiolabelled amino acids in the xylem sap at the ligule of senescent leaves of Lolium temulentum.
    • Hopi confers pigmentation to a wide variety of plant tissues, including pericarp, root, mesocotyl, and leaf blade in the seedling, midrib, ligule, leaf blade, and anthers in the mature plant.
    • Stem height was defined as the length between insertion of the first adventitious roots and the top of the spike, and ligule height as the height of the ligule of the corresponding leaf.
    • All experimentation was done using the expanding second true maize leaf blade at a stage before growth of the leaf sheath, which is seen as displacement of the ligule from the leaf base.

Origin

Early 19th century: from Latin ligula ‘strap’.

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更新时间:2024/11/10 0:41:04