polaroplast

English

Etymology

polar +‎ -o- +‎ -plast

Noun

polaroplast (plural polaroplasts)

  1. An organelle, in microsporidians, that swells with water, and exerts pressure to rupture the polar cap and evert the polar tube through which the sporoplasm escapes to infect the host.
    • 1967 February, Jiri Lom, “Ultrastructural Observations on the Development of the Microsporidian Protozoon Plistophora hyphessobryconis Schaperclaus”, in The Journal of Protozoology, volume 14, number 1, page 141:
      The polaroplast is a laminated structure, originating possibly by transformation of endoplasmic reticulum; the polar cap forms its apical part.
    • 2015 August 6, “Description of the Microsporidian Parasite, Heterosporis sutherlandae n. sp., Infecting Fish in the Great Lakes Region, USA”, in PLOS ONE‎, →DOI:
      The polaroplast consisted of a region of closely and loosely packed series of membranes (Fig 4D and 4E).
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