A seed is a tiny, embryonic plant, embedded within a protective layer called the seed coat, usually with some stored food. The main parts of a seed are the seed coat, endosperm and embryo.
Let’s learn about Plumules- A part of the seed embryo.
What are Plumules?
Plumule is the part of the seed embryo, which develops into the shoot after the germination of seeds. It is a shoot tip, with a small bud-like or a small portion of the plant embryo. It is also called a baby plant or a new plant arising from the seed embryo.
Plumules give rise to a new plant. After the seed germinates, small new tender leaves start arising from the seed embryo. These occur above the cotyledons and are grown into a plant giving rise to several leaves, branches, flowers and seeds. The plumule is composed of the epicotyl, young leaves and the shoot apical meristem.
Functions of Plumules
- Plumule is the part of the embryo, which helps in the development of the shoot system, consisting of stem, leaves, flowers, fruits and seeds.
- Plumule provides food for the growing embryonic plant through the biological process of photosynthesis.
Also Refer: Photosynthesis
Features of Plumules
- Plumule is a part of the embryonic axis, grows after the radicle.
- Plumule is an embryonic shoot, which is present above the cotyledons.
- It grows towards the sunlight, therefore, it is positively phototropic.
- It is made up of the epicotyl, young leaves and the shoot apical meristem.
- Plumule moves away from the soil, therefore, it is called negative geotropism.
- It grows in an upward direction from the soil and is capable of performing photosynthesis.
- Plumules have different shapes and sizes, which usually vary within the different plant species.
- Plumules develop into a proper shoot, which comprises the stem, leaves, flowers, fruits and seeds.
Also Refer: Differences between radicle and plumule.