Question

The growth hormone, Gibberellin, was discovered by

• A. Yabuta and Sumiki
• B. Dutrochet and Dolk
• C. Donoho and Walker
• D. Hashimoto and Rappaport

Answer 1

The correct option is A Yabuta and Sumiki

Gibberellin was first discovered in 1935 by Teijiro Yabuta and Sumuki. It was isolated from fungus Gibberella fujikuroi and hence isolate was given gibberellin name. It is a plant growth regulator. It is involved in various processes like stem elongation, germination, dormancy, leaf and fruit senescence, etc.

Thus, the correct answer is option A.