A dedicated partitioning machinery ensures faithful inheritance of the apicoplast in Toxoplasma gondii.

A specialized APP1 protein anchors the apicoplast to the centrosome, ensuring faithful inheritance during Toxoplasma gondii cell division, with 100% dependency observed.

• Why it matters: Understanding how single-copy organelles like the apicoplast are accurately partitioned is crucial for parasite survival and could reveal targets for intervention, addressing a key gap in apicomplexan cell biology.
• What they did: Researchers identified APP1 through proximity biotinylation, demonstrated its role via conditional knockdown causing apicoplast partitioning defects, and found APP3 assists in positioning APP1 at the basal complex.
• The result: The study uncovers a molecular machinery that connects the apicoplast to the cell division scaffold, advancing knowledge of organelle inheritance mechanisms and potential avenues for disrupting parasite propagation.