Question

Match List-I with List-II
{|p{7cm}|p{7cm}|} List-I (Theory proposed/Characteristic) & List-II (Author/Thinker)
(A) Gene for Gene & (I) H.H. Flor
(B) Germ Theory & (II) Anton de Bary
(C) Puccinia path & (III) K.C. Mehta
(D) Elicitor & (IV) Noel T Keen

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (I), (B) - (III), (C) - (II), (D) - (IV)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Hint:

To remember key historical figures in plant pathology:
- Anton de Bary $\rightarrow$ Proved fungi cause disease (Late Blight of Potato).
- H. H. Flor $\rightarrow$ Proposed the Gene-for-Gene hypothesis.
- K. C. Mehta $\rightarrow$ Traced wheat rust epidemiology in India.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
This matching question covers major historical milestones, theories, and concepts in plant pathology, linking them with the scientists who proposed or discovered them.

Step 2: Detailed Explanation:
Let us analyze each pair individually to determine the correct matches:
(A) Gene for Gene:
This genetic concept was proposed by Harold Henry Flor (H.H. Flor) in 1942 based on his studies of the inheritance of resistance in flax to the flax rust fungus (Melampsora lini).
Hence, (A) matches with (I).
(B) Germ Theory:
Anton de Bary, widely regarded as the Father of Modern Mycology and Plant Pathology, experimentally proved that the late blight of potato was caused by a specific pathogen (*Phytophthora infestans*).
This helped establish the Germ Theory of plant diseases, proving that microbes cause disease rather than being spontaneous byproducts of decay.
Hence, (B) matches with (II).
(C) Puccinia path:
Professor Karam Chand Mehta (K.C. Mehta) conducted extensive research on the epidemiology of cereal rusts (*Puccinia* species) in India.
He discovered and traced the annual recurrence and migration pathways ("Puccinia path") of rust spores between the southern hills/Himalayas and the northern plains of India.
Hence, (C) matches with (III).
(D) Elicitor:
The term "Elicitor" was introduced to describe molecules that trigger plant defense responses, with significant contributions from biochemist Noel T. Keen.
He worked on identifying specific pathogen elicitors (encoded by avirulence genes) that trigger host immune responses.
Hence, (D) matches with (IV).

Step 3: Final Answer:
The correct matching sequence is:
(A) - (I), (B) - (II), (C) - (III), (D) - (IV).
This corresponds to Option (1).