BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Auxins function primarily in stem elongation by promoting cell growth. Indole-3-acetic acid (IAA) is the major naturally occurring auxin and one of the major growth factors in plants. They were the first group of plant growth hormones discovered.

Detailed explanation-2: -Gibberellins promote flowering of arabidopsis by activating the LEAFY promoter. Plant Cell.

Detailed explanation-3: -Gibberellins are plant growth regulators that facilitate cell elongation, help the plants to grow taller. They also play major roles in germination, elongation of the stem, fruit ripening and flowering.

Detailed explanation-4: -The plant hormone gibberellin (GA) controls major aspects of plant growth such as germination, elongation growth, flower development, and flowering time. In recent years, a number of studies have revealed less apparent roles for GA in a surprisingly broad set of developmental as well as cell biological processes.

Detailed explanation-5: -Gibberellins have striking growth-promoting effects. They speed the elongation of dwarf varieties to normal sizes and promote flowering, stem and root elongation, and growth of fruit. Such elongation resembles in some respects that caused by IAA, and gibberellin also induces IAA formation.