Question:
Which of the following is known as T-mycoplasma?
Which of the following is known as T-mycoplasma?
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Associate "T-mycoplasma" with Ureaplasma, which is unique because of its tiny colony size and its urea-hydrolyzing capability.
Updated On: Aug 24, 2026
- Mycoplasma
- Ureaplasma
- Acholeplasma
- L-form
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
The family Mycoplasmataceae contains cell wall deficient, extremely small, self-replicating bacteria that were historically categorized based on colony morphology and physiological properties.
Step 2: Detailed Explanation:
Let us review the historical and modern nomenclature of these organisms:
- T-mycoplasmas (where "T" stands for "tiny") were first isolated from human urethral tract infections. They form exceptionally tiny colonies on agar media compared to standard Mycoplasma species.
- Due to their unique ability to hydrolyze urea (which is absent in true Mycoplasma), they were reclassified under a separate genus, Ureaplasma (e.g., Ureaplasma urealyticum in humans and Ureaplasma diversum in cattle).
- Acholeplasma: Cell wall deficient bacteria belonging to the family Acholeplasmataceae, characterized by their lack of requirement for cholesterol.
- L-form: Artificially induced cell wall deficient variants of normally walled bacteria.
Therefore, Ureaplasma is known as T-mycoplasma.
Step 3: Final Answer
The correct option is (B).
The family Mycoplasmataceae contains cell wall deficient, extremely small, self-replicating bacteria that were historically categorized based on colony morphology and physiological properties.
Step 2: Detailed Explanation:
Let us review the historical and modern nomenclature of these organisms:
- T-mycoplasmas (where "T" stands for "tiny") were first isolated from human urethral tract infections. They form exceptionally tiny colonies on agar media compared to standard Mycoplasma species.
- Due to their unique ability to hydrolyze urea (which is absent in true Mycoplasma), they were reclassified under a separate genus, Ureaplasma (e.g., Ureaplasma urealyticum in humans and Ureaplasma diversum in cattle).
- Acholeplasma: Cell wall deficient bacteria belonging to the family Acholeplasmataceae, characterized by their lack of requirement for cholesterol.
- L-form: Artificially induced cell wall deficient variants of normally walled bacteria.
Therefore, Ureaplasma is known as T-mycoplasma.
Step 3: Final Answer
The correct option is (B).
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