infusorigen

biology

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Last updated

June 29, 2026

Quick Summary

The term "infusorigen" refers to a specific biological structure within certain mesozoans. It is a reduced individual that develops inside a rhombogen and is responsible for producing the infusoriform larva.1

The related term "infusorian" describes a diverse group of microscopic organisms, often found in water containing decaying organic matter. This category particularly includes ciliated protozoa. The term "infusorian" originated from the Latin phrase animalcula infusoria, meaning "animalcules found in infusions".2

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mesozoan
…into minute organisms known as infusorigens; these are reduced hermaphroditic individuals that remain in the axial cell of the rhombogen and form sperm and egg cells. Following fertilization within the rhombogen, the zygotes develop into ciliated infusoriform larvae, which escape from the parent rhombogen and from the cephalopod. It is…
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…into minute organisms known as infusorigens; these are reduced hermaphroditic individuals that remain in the axial cell of the rhombogen and form sperm and egg cells. Following fertilization within the rhombogen, the zygotes develop into ciliated infusoriform larvae, which escape from the parent rhombogen and from the cephalopod. It is…
Read More