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