Auxin sensitivity improves production of rosmarinic acid in transformed hairy roots of <em>Lavandula angustifolia</em>

Hairy root culture is a promising approach to improve production of plant secondary metabolites. The genes, which are located in T-DNA root-inducing plasmid, regulate auxin sensitivity hairy roots. Therefore, this study was aimed the growth and rosmarinic acid Lavandula angustifolia Lateral branches roots were transferred ½ MS B5 liquid media. To assess sensitivity, indole-3-acetic (IAA) indole-3-butyric (IBA) with four different concentrations (0, 0.1, 0.5 1 mg/l) also applied. medium two-fold higher than medium. In addition, both auxins found significantly whereas non-transformed stopped growing presence auxins. highest dry weight obtained from supplemented IBA irrespective its concentration. As result, grown produced maximum amount (7.98 mg/g roots). This first report L. provides new insights into