单词	epicotyl
释义	epicotyl /ˌɛpɪˈkɒtɪl / noun Botany The region of an embryo or seedling stem above the cotyledon.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.... 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.
随便看	tarsal tar sand tarse tar-seal tarsi tarsier tarsometatarsal tarsometatarsus tarsus tart tartan tartan tax tartar tartare Tartarean tartar emetic tartare sauce Tartarian tartaric tartaric acid tartar sauce Tartarus Tartary tart card tarte Tatin

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