Like bacteria, the cell of cyanobacteria also consists of a mucilaginous layer called sheath, the cell wall, plasma membrane and cytoplasm. These are shown in Fig. 4.32 and described below: 1. Sheath: Usually the cell of cyanobacteria are covered by a hygroscopic mucilaginous sheath which provides protection to cell from unfavourable conditions and keeps the cells moist (Fig. 4.32). Thickness, [...]
The following points highlight the two main parts of cyanobacterial cell. The parts are: 1. Outer Cellular Covering 2. Cytoplasm. Part # 1. Outer Cellular Covering of Cyanobacterial Cell: It can be differentiated into following parts: A. Slime layer or Mucilaginous sheath: Presence of mucilaginous sheath is the characteristic feature of cyanobacteria. It consists of fibrils reticulately arranged within the [...]
In this article we will discuss about the structure of cyanobacteria. This will also help you to draw the structure and diagram of cyanobacteria. 1. A gelatinous sheath, made up of homogeneous surface, is present in all the Cyanobacteria. It may be thin (e.g., Anacystismontana) or thick and well developed (e.g., Anabaena). The mucilaginous sheath is made up of many [...]