epicotyl

ep·i·cot·yl

E0175500 (ĕp′ĭ-kŏt′l)n. The stem of a seedling or embryo located between the cotyledons and the first true leaves.

[epi- + cotyl(edon).]

epicotyl

(ˌɛpɪˈkɒtɪl) n (Botany) the part of an embryo plant stem above the cotyledons but beneath the terminal bud[C19: from epi- + Greek kotulē; see cotyledon]

ep•i•cot•yl

(ˌɛp ɪˈkɒt l, ˈɛp ɪˌkɒt l)

n. (in a plant embryo) that part of the stem above the cotyledons. [1875–80; epi- + Greek kotýlē cup]

Epicotyl

epicotyl

[‚ep·ə′käd·əl] (botany) The embryonic plant stem above the cotyledons.

Epicotyl

the part of the stem in a plant seedling between the cotyledons and the first true leaves (the first internode). In embryos the epicotyl is a conoid outgrowth consisting of primary formative tissue, or meristem. In plants with aboveground shoot formation the epicotyl and the cotyledons appear above the surface of the soil (for example, in beans and melons). In plants having underground shoot development the cotyledons remain in the soil, and the epicotyl is bent into a loop and then straightened; it carries the bud with the first leaves to the surface, toward the light (for example, in peas, plums, and oaks).

单词	epicotyl
释义	epicotyl ep·i·cot·yl E0175500 (ĕp′ĭ-kŏt′l)n. The stem of a seedling or embryo located between the cotyledons and the first true leaves. [epi- + cotyl(edon).] epicotyl (ˌɛpɪˈkɒtɪl) n (Botany) the part of an embryo plant stem above the cotyledons but beneath the terminal bud[C19: from epi- + Greek kotulē; see cotyledon] ep•i•cot•yl (ˌɛp ɪˈkɒt l, ˈɛp ɪˌkɒt l) n. (in a plant embryo) that part of the stem above the cotyledons. [1875–80; epi- + Greek kotýlē cup] Epicotyl epicotyl [‚ep·ə′käd·əl] (botany) The embryonic plant stem above the cotyledons. Epicotyl the part of the stem in a plant seedling between the cotyledons and the first true leaves (the first internode). In embryos the epicotyl is a conoid outgrowth consisting of primary formative tissue, or meristem. In plants with aboveground shoot formation the epicotyl and the cotyledons appear above the surface of the soil (for example, in beans and melons). In plants having underground shoot development the cotyledons remain in the soil, and the epicotyl is bent into a loop and then straightened; it carries the bud with the first leaves to the surface, toward the light (for example, in peas, plums, and oaks). epicotyl epicotyl the axis (or stem) of the shoot in a young germinating seedling, located above the COTYLEDON. See GERMINATION and Fig. 171 .
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