WHAT IS THE DIFFERENCE BETWEEN EPICOTYL, COLEOPTILE, PLUMULE AND SHOOT?

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Solution

The portion of the embryonal axis above the level of cotyledons is called epicotyl. It contains the plumule (shoot tip) which develops into shoot during growh and development of plants.
In the grasses, which are monocotyledons, the plumule is protected by a sheath called coleoptile which is positively phototropic and negatively geotropic.

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In monocot embryo, radicle is enclosed in coleorhiza and plumule is enclosed in coleoptile.

In monocot embryo radicle is enclosed in coleorhiza and plumule is enclosed in coleoptile

Differentiate between:

(a) Hypocotyl and epicotyl;

(b) Coleoptile and coleorrhiza;

(d) Perisperm and pericarp.

The tip of epicotyl is called as plumule. True or false?

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