Somatic embryogenesis and plant regeneration from cell suspension culture of niger (Guizotia abyssinica Cass.) |
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Authors: | Poornananda Madhava Naik Hosakatte Niranjana Murthy |
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Institution: | 1. Department of Botany, Karnatak University, Dharwad, 580 003, India
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Abstract: | Somatic embryogenesis was achieved from cell suspension cultures of niger (Guizotia abyssinica Cass.). Initially, friable embryogenic calluses were induced from cotyledonary leaves of niger on Murashige and Skoog (MS) agar medium containing 5 μM 2,4-Dichlorophenoxyacetic acid (2,4-D) and 0.5 μM kinetin (KIN). Cell suspension cultures were established by using embryogenic calluses in MS liquid medium containing 5 μM 2,4-D and 0.5 μM KIN. Initiation of somatic embryogenesis and development up to globular stage from embryogenic cell clumps occurred in the liquid medium itself. Thereafter embryogenic cell aggregates were transferred to MS agar medium supplemented with 3 μM KIN for embryo differentiation, whereas maturation of somatic embryos occurred in MS agar medium containing 10 μM abscisic acid. |
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