The zygote developed inside the embryo sac divides mitotically to form the embryo. In monocot embryo only one cotyledon and a primary axis are present. The cotyledon is present at the tip of the axis and the plumule is on its lateral side. Embryo is curved. In dicot embryo has an axis and the two cotyledons are on either side in opposite direction. At the tip of the axis, the apical bud is present and at the base of the axis the root tip is present. The plumule develops into shoot system and radical into root system.
Monocot Embryo vs Dicot EmbryoMonocot Embryo
1. Only one cotyledon attached to the embryonal axis.
2. Plumule is latral.
3. A single cotyledon occupies terminal position.
4. The envelope of plumule is called coleoptile.
5. Coleorrhiza is a protective sheath of radicle.
6. Suspensor comparatively larger.
7. A single cotyledon called scutellum is present.
1. There are two cotyledons attached to an embryonal axis.
2. Plumule occur distally.
3. Cotyledons occur laterally.
4. Coleoptile absent.
5. Coleorrhiza absent.
6. Suspensor large.
7. Scutellum absent.