Callus cultures of Pueraria candollei var. mirifica were first established from various parts of explants
with the objective of isoflavones, daidzein and genistein production. The cultures were studied on their
growth and isoflavone production by various combinations of growth regulators, auxins and cytokinins at
25±2ºC. Daidzein and genistein accumulated in the cells were determined. The results revealed that callus of
P. candollei var. mirifica was capable of producing high level of both isoflavones consistently. The culture
temperature played an important role in the growth and isoflavone production. Over twofold of growth and
threefold of isoflavone production were demonstrated at 32±2ºC. The callus established from the stems in
MS medium supplemented with 4.5 μM 2,4-D and 0.46 μM kinetin produced the highest yield of daidzein
(5.12 mg/g, DW) and genistein (2.77 mg/g, DW), which was remarkably higher than the intact plants.