Thallus Structure of Navicula (With Diagram)
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 [...]