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being closer to the apex of the plant, is the first part to emerge after germination - rather, the hypocotyl, the region of the stem between the point of attachment of the cotyledons and the root - forms a hook during hypogeal germination and pushes out of the soil, allowing the more delicate tissues of the plumules and apical meristem to avoid damage from pushing through the soil. The epicotyl will expand and form the point of attachment of the
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An epicotyl is important for the beginning stages of a plant's life. It is the region of a seedling stem above the stalks of the seed leaves of an embryo plant. It grows rapidly, showing hypogeal germination, and extends the stem above the soil surface. A common misconception is that the epicotyl,
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and leaf primordia or "first true leaves". Cotyledons may remain belowground or be pushed up aboveground with the growing stem depending on the plant species in question.
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is what appears to be the base stem under the spent withered cotyledons, and the shoot just above that is the
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Lengthening of the epicotyl is thought to be controlled by the phytochrome photoreceptors.
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The first stem internode above the cotyledonary node of a plant embryo or a seedling
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321:"epicotyl." A Dictionary of Biology. 2004. Encyclopedia.com. 3 Dec. 2015
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plants, the first shoot that emerges from the ground or from the
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103:"Epicotyl"
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