Direct somatic embryogenesis from protoplasts of Citrus mitis Blanco
1Tissue Culture Laboratory, Botany Department, National University of Singapore, Lower Kent Ridge Road, 0511, Singapore, Republic of Singapore.
Plant Cell Reports
|November 19, 2013
Summary
Somatic embryos developed directly from Citrus mitis protoplasts without callus. This method efficiently produced numerous plantlets, offering a new pathway for citrus propagation.
Area of Science:
- Plant biotechnology
- Somatic embryogenesis
- Citrus research
Background:
- Plant regeneration is crucial for crop improvement.
- Efficient methods for citrus propagation are needed.
- Somatic embryogenesis offers a route for clonal propagation.
Purpose of the Study:
- To investigate direct somatic embryogenesis from Citrus mitis protoplasts.
- To establish an efficient protocol for generating citrus plantlets from protoplasts.
Main Methods:
- Isolation of protoplasts from embryogenic suspension cultures of Citrus mitis.
- Culture of protoplasts in a plant growth substance-free medium.
- Induction of somatic embryogenesis and subsequent plantlet development.
Main Results:
- Direct somatic embryo development from protoplasts without a callus phase.
- High yield of somatic embryos (up to 1,800 per 4 ml suspension).
- Successful development of plantlets and rooted plantlets within 3 months.
Conclusions:
- Direct somatic embryogenesis from Citrus mitis protoplasts is feasible.
- This method provides an efficient and rapid propagation technique for citrus.
- The protocol bypasses the callus phase, simplifying the process.
