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“Aerobic bacteria are those that can survive or grow in the presence of oxygen” Examples: Bacillus, Nocardia, Pseudomonas. Classification of aerobic bacteria: There are three types of aerobic bacteria. Obligate aerobes: These bacteria are strictly survived in the presence of oxygen. These bacteria can’t live in ...

“Iron bacteria are those bacteria that can accumulate iron from their environment.” These bacteria deposit iron and store iron as storage granules. These bacteria cause iron to react with oxygen and form rust. They form sticky slime layers that allow them ...

Encapsulated bacteria are those bacteria that contain polysaccharide capsule around their cell wall Examples: Streptococcus pneumonia, Hemophilus influenza Characteristics: This capsule can be found either on gram positive or gram negative bacteria. The capsule is different from the cell wall of bacteria. It is ...

Denitrifying bacteria are those bacteria that can convert the nitrate into free nitrogen. These bacteria consume the soil nitrate and convert into free nitrogen thus decrease the fertility of the soil. Examples of denitrifying bacteria: Pseudomonas aeruginosa, Thiobacillus denitrificans. Habitat: These bacteria are usually ...