Tag: classification of microbes

Archaebacteria differ from other bacteria in having a different cell wall structure and this feature is responsible for their survival in extreme conditions.

Methanogens belong to archaebacteria. They are strict anaerobes. They are autotrophs which obtain both energy and carbon from decomposition products. They occur in marshy areas where they convert formic acid and carbon dioxide into methane with the help of hydrogen. This capability is commercially exploited in the production of methane and fuel gas inside gobar gas plants, e.g., Methanobacterium, Methanococcus. Some of the methanogens live as symbionts inside rumen of herbivorous animals that chew their cud. These archaebacteria are helpful to the ruminants in fermentation of celullose.

Trypanosoma parasites cause sleeping sickness or African trypanosomiasis or Chagas disease which is found in sub-Saharan Africa.

Nitrogen fixing is seen in heterotrophic bacteria live in the soil and fix significant levels of nitrogen, species like Clostridium, Bacillus, Azotobacter are called nitrogen-fixing bacteria.

Methanogens are microorganisms that produce methane as a metabolic byproduct in hypoxic conditions. They are prokaryotic and belong to the domain of archaea. They are common in wetlands, where they are responsible for marsh gas, and in the digestive tracts of animals such as ruminants and humans, where they are responsible for the methane content of belching in ruminants and flatulence in humans. In marine sediments the biological production of methane, also termed methanogenesis, is generally confined to where sulfates are depleted, below the top layers. Moreover, the methanogenic archaea populations play an indispensable role in anaerobic wastewater treatments. Others are extremophiles, found in environments such as hot springs and submarine hydrothermal vents as well as in the "solid" rock of the Earth's crust, kilometers below the surface.

A facultative anaerobe is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to respiration if oxygen is absent.

Monera is the unicellular organism's having a prokaryotic cellular structure, these are microorganisms that evolve methane gas are prokaryotic and belong to the domain of archaea, methanogenic archaea are found in the digestive tracts of human beings along with ruminants, termites, and humans.