sporoplasm

plural sporoplasms

1. countableuncountablebiologyThe protoplasm of a spore, particularly in the myxospores.

   The posterior half portion of the spore is filled with sporoplasm.

   1917, Rokusaburo Kudo, “Myxobolus toyamai nov. spec., a new myxosporidian parasite in Cyprinus carpio L.”, in The Journal of Parasitology, volume 3, page 167

   2 more examples

   Sporoplasm varying considerably in size and shape, and sometimes filling all the extra-capsular portion of the shell cavity; in this condition presenting no evidence of segmentation.

   1894, R. R. Gurley, The Myxosporidia, Or Psorosperms of Fishes, page 268

   Under appropriate conditions inside a suitable host, the polar tube is discharged through the thin anterior end of the spore, which penetrates the host cell, and is used to inoculate the infective sporoplasm and nucleus (one or two) into the host cell.

   2006, Edward J. Bottone, Atlas of the Clinical Microbiology of Infectious Diseases