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Related Experiment Videos

Protoplasts from Acetabularia: isolation and fusion.

M Primke, S Berger, H G Schweiger

    Cytobiologie
    |April 1, 1978
    PubMed
    Summary

    Researchers achieved over 90% fusion efficiency in Acetabularia cliftonii protoplasts, a key step for studying these haploid cells. Cells from the same cyst showed higher fusion rates, indicating mating type compatibility influences the process.

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    Area of Science:

    • * Cell Biology
    • * Algology
    • * Reproductive Biology

    Background:

    • * Acetabularia cliftonii are single-celled green algae, often used as model organisms.
    • * Haploid cells are crucial for understanding genetic processes and reproduction.
    • * Protoplast isolation and fusion are vital techniques in plant cell biology.

    Purpose of the Study:

    • * To investigate efficient methods for isolating and fusing Acetabularia cliftonii protoplasts.
    • * To determine the efficiency and conditions favoring protoplast fusion.
    • * To explore the influence of cell origin (cyst) on fusion propensity.

    Main Methods:

    • * Isolation of protoplasts from Acetabularia cliftonii using enzymatic digestion (papain or proteinase K).
    • * Induction of protoplast fusion through mechanical manipulation.
    • * Observation and quantification of fusion efficiency at room temperature.

    Main Results:

    • * Successful isolation of viable Acetabularia cliftonii protoplasts containing a nucleus.
    • * Achieved over 90% fusion efficiency within 30 minutes at room temperature via mechanical fusion.
    • * Demonstrated significantly higher fusion propensity between haploid cells from the same cyst compared to those from different cysts.

    Conclusions:

    • * Mechanical fusion is a highly efficient method for Acetabularia cliftonii protoplast fusion.
    • * Cellular origin and likely mating type compatibility significantly influence protoplast fusion rates.
    • * This technique provides a robust system for genetic studies and somatic hybridization in Acetabularia.

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