Cytokinins

Cytokinins in the intact plant are the phytohormones that work from the bottom up. Made in the roots (also seeds and fruits), cytokinins travel up the xylem and promote lateral growth. Since auxins travel down from the growing tip and act to suppress lateral growth, these two types of hormones strike a balance. This relationship persists in tissue culture. When the active concentration of the two hormones are balanced, callus formation and growth is favored. When cytokinin predominates, shoots are formed. Although the name “cytokinin” indicates that these molecules promote cell division, in reality cell division requires both hormones. Optimal hormonal conditions for propagation differ from species to species, and also differ with the stage of development. We offer a wide variety of cytokinins. The naturally occurring purine cytokinin Zeatin as well as its metabolic precursor 2iP are listed with several choices of purity and formulations. Synthetic purine cytokinins, such as kinetin and BAP, are potent and economic alternatives. Substituted urea compounds, such as thidiazuron and CPPU do not occur in plants but act as cytokinins in tissue culture and may be optimal for the particular species being studied.

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A5665 Adenine BioReagent, plant cell culture tested, ≥99%
A2545 Adenine hemisulfate salt BioReagent, plant cell culture tested, ≥99%
B3408 6-Benzylaminopurine plant cell culture tested
B5920 6-Benzylaminopurine hydrochloride plant cell culture tested, ≥98%
C2791 N-(2-Chloro-4-pyridyl)-N′-phenylurea applicable for cell culture, BioReagent
D5912 6-(γ,γ-Dimethylallylamino)purine BioReagent, plant cell culture tested, ≥90%
D7674 6-(γ,γ-Dimethylallylamino)purine BioReagent, plant cell culture tested, ≥98.5%
D7660 6-(γ,γ-Dimethylallylamino)purine BioReagent, plant cell culture tested, 1 mg/mL
K0753 Kinetin plant cell culture tested, crystalline
K3378 Kinetin BioReagent, plant cell culture tested, amorphous powder
K3253 Kinetin solution 1 mg/mL, BioReagent, plant cell culture tested
P6186 Thidiazuron plant cell culture tested, BioReagent
Z0164 Zeatin BioReagent, plant cell culture tested, powder
Z0876 trans-Zeatin BioReagent, plant cell culture tested, ≥97%
Z2753 trans-Zeatin hydrochloride plant cell culture tested, ≥97%
Z0537 trans-Zeatin glucoside ~95%
Z3541 trans-Zeatin-riboside BioReagent, plant cell culture tested, ~95%