Given below are two statements: Statement I: Momilactone is a phytoalexin found in paddy. Statement II: Rishitin is a phytoalexin found in potato.

Correct option is A

Momilactone is a phytoalexin produced by rice plants in response to pathogen attack. It plays an important role in defense mechanisms by inhibiting growth of invading pathogens. Rishitin is a well-known phytoalexin found in potato, synthesized under disease stress. Thus, both statements regarding phytoalexins are correct.
Information booster: Phytoalexins are antimicrobial compounds synthesized by plants as part of their defense response. Their production is induced by pathogen infection, injury, or stress conditions. Different crops produce specific phytoalexins depending on genetic makeup. Phytoalexins contribute significantly to disease resistance in plants.
Why other options are incorrect: (b) This option is incorrect because both statements are true. (c) This option is incorrect since rishitin is indeed found in potato. (d) This option is incorrect because momilactone is correctly associated with paddy.