A Transverse Cross-Section of Dithecous Anther
A transverse cut of a dithecous anther reveals two microsporangia in each lobe, totaling four microsporangia. Pollen grains can be found in microsporangia, also known as pollen sacs. The anther resembles a plant’s male reproductive organ. It is divided into two portions, with four divisions inside where pollen is produced. These parts are known as microsporangia. Each microsporangium contains microscopic cells that produce male gametes, which resemble plant sperm. The anther has four layers around these pollen-producing sections:
- Epidermis: It is the outermost layer, similar to the skin of the anther.
- Endothecium: This layer lies just beneath the epidermis.
- Middle layer: It is composed of 2-3 cell layers and often degrades as the anther grows.
- Tapetum: This is the inner most layer that surrounds the pollen-producing cells and helps them expand.
Also Read: What is Microsporogenesis?
Dithecous Anther – Structure, Formation, and Theca
The dithecous anther is a bilobed structure found in flowering plants’ stamens. The dithecous anther consists of four microsporangia, two in each lobe. Upon maturation, the anther undergoes dehiscence, releasing pollen for pollination and fertilization. Dithecous anthers examples include solanum and mustard.
The dithecous anther plays a crucial role in the sexual reproduction and genetic diversity of angiosperms. In this article, we will learn about the structure, function, and formation of the dithecous anther in detail.
Table of Content
- What is Dithecous Anther?
- Dithecous Anther Diagram
- Structure of Dithecous Anther
- A Transverse Cross-Section of Dithecous Anther
- Formation of Theca in Dithecous Anther
- Functions of a Dithecous Anther