Biological Classification Question 107
107. The chemical compounds produced by the host plants to protect themselves against fungal infection is
(a) phytotoxin
(b) pathogen
(c) phytoalexins
(d) hormone
Show Answer
Answer : c
Hints & Solutions
(c) Phytoalexins are non-specific antibiotic substances produced by plants in response to infection by a fungus. Phytoalexins are antimicrobial and often antioxidative substances synthesized de novo by plants that accumulate rapidly at areas of pathogen infection. They are broad spectrum inhibitors and are chemically diverse in a particular plant species.
