IMMUNOLOGY

Detailed explanation-1: -Gibberellins are normal constituents of green plants and are also produced by several microorganisms. Gibberellins were first isolated from the fungus Gibberella fujikuroi, the cause of the foolish seedling disease of rice (Figure 1-37D). The best-known gibberellin is gibberellic acid.

Detailed explanation-2: -Another name is foolish seedling disease.

Detailed explanation-3: -This compound was later shown to be identical to the gibberellin isolated by the Japanese scientist. For this GA3 is also referred to as gibberellic acid. GA3 is the principal component in Gibberella culture.