Rapid and Effective Electroporation Protocol for Nannochloropsis oceanica

Area of Science:

• Biotechnology
• Molecular Biology
• Algal Research

Background:

• Electroporation enables the introduction of molecules into cells by creating temporary pores in the cell membrane.
• Optimizing electroporation parameters is crucial as they vary significantly between different algal species due to cell wall properties.

Purpose of the Study:

• To establish an optimized electroporation protocol for the genetic transformation of Nannochloropsis oceanica.
• To demonstrate the efficient introduction of a large recombinant DNA construct (~5000 bp) into N. oceanica.

Main Methods:

• Linearized recombinant plasmid DNA containing eGFP (reporter) and Bh-sle (marker) genes was used.
• Electrocompetent N. oceanica cells were subjected to electroporation using specific parameters: 2200 V, 50 μF, and 600 Ω resistance.
• Transformed cells were identified and screened using molecular analysis.

Main Results:

• Successful introduction of recombinant DNA into Nannochloropsis oceanica was achieved.
• The optimized protocol facilitated the generation of transgenic N. oceanica cells.

Conclusions:

• A straightforward and reliable electroporation strategy for Nannochloropsis oceanica genetic engineering has been developed.
• This method is effective for generating transgenic algal strains for research and potential applications.