Question

Are gibberellins proteins?

Answer 1

Gibberellins (GAs) are plant hormones that regulate a variety of developmental processes, including stem elongation, germination, dormancy, flowering, flowering, and leaf and fruit senescence.

Complete answer:
GAs are one of the longest known classes of plant hormones. It is thought that the selective breeding (albeit unconscious) of crop strains deficient in GA synthesis was one of the key drivers of the "green revolution" of the 1960s, a revolution that is credited with saving more than a billion lives worldwide.

Gibberellins (GAs) regulate growth and growth in higher plants. A proteomic approach was used to identify GA-regulated proteins during rice leaf sheath elongation. Proteins from the basal region of the leaf sheath in rice seedlings treated with GA(3) were analyzed by two-dimensional fluorescence difference gel electrophoresis.

The levels of abscisic acid-stress-ripening-inducible 5 protein (ASR5), elongation factor-1 beta, translationally controlled tumor protein, fructose-bisphosphate aldolase, and novel protein increased, while the level of RuBisCO subunit binding-protein decreased by GA(3). Of these six proteins, ASR5 was significantly regulated by GA(3) at the protein level but not at the mRNA level in the basal region of leaf sheaths.

Since this protein is regulated not only by abscisic acid but also by GA(3), these results indicate that, in addition to stress in the basal regions of the leaf sheaths, ASR5 may be involved in plant growth. More than 100 gibberellins are isolated and found both in fungi and higher plants. Gibberellic acid is the most widely studied plant growth regulator. They are acidic and play a major role in apical predominance.
-Lateral shoot growth, man.
-Delay the aging of the leaves.
-Producing new leaves.
-Promote bolting in some plant species.

Thus, Gibberellins are proteins.

Note: The first inroads into understanding GAs were developments in the field of plant pathology, with studies on balance or "foolish seedling" disease in rice. The foolish seedling disease causes a strong elongation of the rice stems and leaves and eventually causes them to collapse. In 1926, Japanese scientist Eiichi Kurosawa discovered that stupid seedling disease was caused by the fungus Gibberella fujikuroi.