Sporogenous Tissue
Sporogenous tissue are specialized plant tissue responsible for the formation of spores through the process of sporogenesis. They are located in the center of a microsporangium and are thick, elongated, and spindle shaped with pointed tips. It has a narrow lumen with simple rounded pits and a lignified secondary wall. It is distributed in the cortex, pericycle, xylem, and phloem.
Sporogenous tissues are diploid in nature and undergo meiosis to form microspore tetrads. Each sporogenous cell is also known as a pollen mother cell or microspore mother cell and produces pollen grains. They get nourishment from the tapetum, a layer of nutritive cells found within the sporangium. The pollen grain produced by sporogenous tissue can eventually give rise to gametophytes or directly develop into new individuals, contributing to the plant’s reproductive cycle.
Also Read: Vascular Tissue : Xylem and Phloem
Overview of Microsporangia – Structure, Function and Diagram
Microsporangia are microscopic sac-like structures that produce microspores in flowering plants through microsporogenesis. Within the microsporangia, diploid cells undergo meiosis, resulting in the formation of haploid microspores. These microspores develop into male gametophytes also known as pollen grains, which are essential for the pollination and fertilization of the plant.
In seed-producing plants, microsporangia are the key contributors to the male reproductive cycle and ensure the continuation of the species. In this article, we will discuss microsporangia, its structure, and its functions in detail.
Table of Content
- What are Microsporangia?
- Diagram of Microsporangia
- Structure of Microsporangia
- What is Microsporogenesis?
- Formation of Microsporangia
- Sporogenous Tissue
- Pollen Grain
- Function of Microsporangia
- Difference Between Microsporangia and Megasporangia