In this article we will discuss about the ten main orders under which bacteria has been classified. Order I. Pseudomonadales: It includes some photosynthetic, some chemosynthetic and many heterotrophic bacteria with straight, curved or spiral rods usually with polar flagellation. They are gram-negative and reproduce always by fission. The order includes 7 families. Of these […]
Bacteria Classified: 10 Main Orders | Microbiology
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Life History of Bacillus Subtilis | Bacteria
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In this article we will discuss about the life history of bacillus subtilis. It is popularly known as Hay bacillus. It is a common example of a rod-shaped bacterium. A rich culture of the bacterium can easily be prepared in the laboratory. Take hay and chop it into small pieces. Put the chopped bits in […]
Theories on Living Hypothesis of Viruses | Virology
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The following points highlight the two main theories on living hypothesis of viruses. The theories are: 1. Organism Theory 2. Molecular Theory. Theory # 1. Organism Theory: The supporters of the living hypothesis argue that growth and reproduction are chief distinctive characteristics of living things (organisms). Viruses possess both. They grow, reproduce and undergo mutations […]
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