Plant Growth Regulators - Gibberellins (GA)

Plant Growth Regulators - Gibberellins (GA)


Gibberellins (GAs) are plant hormones that regulate various developmental processes, including stem elongation, germination, dormancy, flowering, flower development, and leaf and fruit senescence. GAs are one of the longest-known classes of plant hormone. All known gibberellins are diterpenoid acids that are synthesized by the terpenoid pathway in plastids and then modified in the endoplasmic reticulum and cytosol until they reach their biologically-active form. All gibberellins are derived via the ent-gibberellane skeleton, but are synthesised via ent-kaurene. The gibberellins are named GA1 through GAn in order of discovery. Gibberellic acid, which was the first gibberellin to be structurally characterized, is GA3.
Gibberellins are involved in the natural process of breaking dormancy and other aspects of germination. Before the photosynthetic apparatus develops sufficiently in the early stages of germination, the stored energy reserves of starch nourish the seedling. Usually in germination, the breakdown of starch to glucose in the endosperm begins shortly after the seed is exposed to water. Gibberellins in the seed embryo are believed to signal starch hydrolysis through inducing the synthesis of the enzyme α-amylase in the aleurone cells.

Cat#
Description
Size
Price Excl. VAT
B2234-1G
 1g 
B2234-5G
 5g 
G500-100G
 100G 
30631008-1
 1g 
30631008-2
 5g 
30631008-3
 25g 
30631008-4
 50g 
452575-100mg
 100mg 
452575-1g
 1g 
G377450-100g
 100g 
G377450-250mg
 250mg 
G377450-500mg
 500mg 
451185-100mg
 100mg 
451185-250mg
 250mg 
451186-100mg
 100mg 
451186-50mg
 50mg 
I818900-100mg
 100mg 
G377530-100mg
 100mg 
G377530-250mg
 250mg 
G377530-500mg
 500mg 
278395-100g
 100g 
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