Identify the Archaebacterium.

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TNUSRB Finger Print SI Official Paper (Held on 23 Dec 2018)
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  1. Acetobactor 
  2. Erwinia 
  3. Treponema
  4. Methanobacterium

Answer (Detailed Solution Below)

Option 4 : Methanobacterium
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Detailed Solution

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The correct answer is Methanobacterium.

 Key Points

  • Methanobacterium is a genus of microbes in the domain Archaea and is known as archaebacteria. They are methanogens, which means they produce methane as a metabolic byproduct.
  • Archaebacteria are known for living in extreme environments, such as hot springs, salt lakes, or in the gut of ruminants where Methanobacterium can be found.
  • They have unique properties that differentiate them from other bacteria, such as distinctive ribosomal RNA sequences and unique membrane lipids.

 Additional Information

  • Acetobacter and Erwinia are types of true bacteria (eubacteria), not archaebacteria.
  • Treponema is also a genus of bacteria, known for causing diseases like syphilis and yaws.

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