Embryogenic cell lines from somatic embryos of grape (Vitis vinifera L.)

Area of Science:

• Plant Biotechnology
• Plant Cell Culture
• Somatic Embryogenesis

Background:

• Somatic embryogenesis offers a method for mass propagation of grapevines.
• Efficient induction protocols are crucial for Vitis vinifera cv. Koshusanjaku propagation.

Purpose of the Study:

• To investigate somatic embryo formation from grape leaf callus.
• To evaluate the role of synthetic cytokinins in enhancing embryogenesis.

Main Methods:

• Induction of embryogenic callus from Vitis vinifera cv. Koshusanjaku leaf explants.
• Culture on Nitsch and Nitsch medium with 2,4-D and subsequent transfer to hormone-free medium.
• Treatment with synthetic cytokinins (KT-30, TAG) combined with 2,4-D.

Main Results:

• Embryogenic callus maintained high activity for over two years.
• Synthetic cytokinins KT-30 and TAG effectively induced somatic embryogenesis.
• Somatic embryos were produced when callus was treated with cytokinins and 2,4-D.

Conclusions:

• Somatic embryogenesis from grape leaf callus is feasible and can be enhanced by specific cytokinins.
• Established embryogenic callus lines can be maintained for long-term embryo production.
• This method provides a potential route for efficient propagation of Vitis vinifera cv. Koshusanjaku.