Plantlet Regeneration of Somatic embryos from Leaf Explants of Mentha arvensis(L.) A medicinally important Plant

摘要

The present study was conducted with the aim of evaluating some of the factors that influence induction and plantlet regeneration of somatic embryos in Mentha arvensis (L) var piperascens Holmes (menthol or Japanese mint) since there are no available reports on Somatic embryogenesis and regeneration of plantlet in this medicinally important plant species. Leaves from plants growing under temporary shed were cultured on Murashige and Skoog medium fortified with (0.5- 5.0mg/L) Napthlene acetic acid (NAA)+(0.5 mg/L)Thidizuron(TDZ). High frequency of somatic embryo formation was found at (2.5mg/L) NAA+ (0.5mg/L) TDZ in leaf explants respectively, Secondary somatic embryogenesis was also observed when primary somatic embryos were sub cultured same somatic embryo induction medium well developed cotyledonary stage embryos were germinated on MS medium supplemented with (0.5mg/L) (NAA) + (0.5-5.0mg/L)TDZ maximum 80% of somatic embryos germination and plant let formation was found at (2.5 mg/L) NAA+ (0.5 mg/L) (TDZ). The post translation survival rate of plants was 80% plants and flowers formation were morphological similar to the mother plants.