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, pl.


(rōp'trē, -trēs),
Electron-dense club-shaped, tubular or saccular organelles, extending back from the anterior end of sporozoites and other stages of certain sporozoans in the subphylum Apicomplexa.
[G. rhopalon, club]
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Recent advances have highlighted few strain-specific parasite effectors released from the rhoptry into the host cells where they neutralize cell autonomous immunity defences or subvert the host cell transcriptome thereby governing the fate of immune response and disease outcomes.
Juridical Foundation The Chemo-Sero-Therapeutic Research Institute (Kumamoto-shi, Japan) has patented a gene encoding a protein from merozoite of Babesia caballi, a recombinant protein of Babesia caballi, and an antibody capable specifically binding to a 48 kDa protein of rhoptry of Babesia caballi merozoite.
TgSUB1 is a microneme protein, whereas TgSUB2 localizes to rhoptries and associates with rhoptry protein ROP1, a potential substrate.