Document Type : Research paper


Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran


To establish a dynamic and fine suspension culture, four different methods of tomato cell suspension culture were compared. Hypocotyl explants of the tomato cultivar Jina were used for callus induction on Murashige and Skoog (MS) Medium supplemented with three different phytohormone combinations. Then, one gram of each type of calli was transferred to 50 mL of liquid MS medium with four combinations of auxins and cytokinins to produce cell suspensions. The growth rate, judged by cell turbidity, cell fresh weight, and cell viability was evaluated. The best suspension culture was obtained by using friable calli formed on MS medium containing 1 mg L-1 NAA and 0.1 mg L-1 kinetin, transferred to the liquid MS supplemented with 2 mg L-1 NAA, 0.2 mg L-1 2, 4-D and 0.2 mg L-1 zeatin.


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