The chemical produced by the host plant to protect themselves against fungal infection is:
Correct answer: D. Phytoalexin
- A. Toxin
- B. Hormone
- C. Phytotoxin
- D. Phytoalexin
Explanation
Phytoalexins are antimicrobial compounds synthesized by plants after infection or other stress, helping restrict fungal growth. A toxin is a broad term, whereas phytoalexin specifically describes this induced plant defence chemical.
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