An Overview

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

  1. Plumule is the part of the embryo, which helps in the development of the shoot system, consisting of stem, leaves, flowers, fruits and seeds.
  2. 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.

This article concludes with an introduction to the plumule. To know more about plumules, their structure, functions, other related topics and important questions on seed formation, seed germination and parts of seeds, keep visiting our website at BYJU’S Biology.

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