Fig. 5.

Representative characteristics of selected microorganisms. A) Electron micrograph of negatively stained E. coli bacteria showing curvy flagella and numerous short hair-like structures, B) Niemeyer virus (NYMV) observed by TEM, C) Schematic representation of algae photosynthesis, producing oxygen and fixing carbon dioxide. Algae have a wide variety of shapes and sizes, from oval cells to long multicellular thalli, and D) SEM image of filamentous B. cinerea fungus. Adapted with permission from Refs. [32,144,149,150].