In this article we will discuss about the reproduction in basillariophyta. This will also help you to draw the structure and diagram of reproduction in bacillariophyta. Diatom cells multiply usually by a peculiar method of cell division. An increase in the volume of the frustule results in a slight separation of the valves which is followed by mitotic division of [...]
In this article we will discuss about:- 1. Features of Bacillariophyta 2. Classification of Bacillariophyta 3. Relationship 4. Phylogeny. Features of Bacillariophyta: The Bacillariophyta, commonly known as the diatoms, are ubiquitous algae of both fresh- and salt-water and of damp places including aerial habitats as, old walls, rocky cliffs, bark of trees, and damp soils. Some are submerged in water [...]
In this article we will discuss about the thallus structure of Navicula with the help of suitable diagrams. Thallus is represented by a iso-bilaterally symmetrical diploid unicells. Structurally, it can be differentiated into two parts - A siliceous cell wall (called frustule) and the protoplast. The cell wall is made of pectic substances which are impregnated with silica (SiO2). Cell [...]