Question:
Which of the following bacterium is generally used in plant genetic engineering?
Which of the following bacterium is generally used in plant genetic engineering?
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Agrobacterium = Natural gene transfer tool in plants (Ti plasmid).
Updated On: May 13, 2026
- Thermus aquaticus
- Pseudomonas syringae
- Agrobacterium tumifaciens
- Escherichia coli
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The Correct Option is C
Solution and Explanation
Concept:
Agrobacterium tumifaciens is widely used in plant genetic engineering because it naturally transfers DNA into plant cells.
Step 1: Understand its role.
• Contains Ti (Tumor-inducing) plasmid
• Transfers a part of DNA (T-DNA) into plant genome
Step 2: Why it is useful.
• Scientists modify Ti plasmid
• Insert desired genes
• Used to create genetically modified plants
Step 3: Analyze other options.
• Thermus aquaticus → Source of Taq polymerase
• Pseudomonas syringae → Plant pathogen
• Escherichia coli → Used in cloning, not plant transformation
Step 4: Final conclusion.
Thus, the correct answer is: \[ \textit{Agrobacterium tumifaciens \]
Step 1: Understand its role.
• Contains Ti (Tumor-inducing) plasmid
• Transfers a part of DNA (T-DNA) into plant genome
Step 2: Why it is useful.
• Scientists modify Ti plasmid
• Insert desired genes
• Used to create genetically modified plants
Step 3: Analyze other options.
• Thermus aquaticus → Source of Taq polymerase
• Pseudomonas syringae → Plant pathogen
• Escherichia coli → Used in cloning, not plant transformation
Step 4: Final conclusion.
Thus, the correct answer is: \[ \textit{Agrobacterium tumifaciens \]
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