ID#: 16549
Caption:
This schematic depicts the steps involved in the process known as endodyogeny, one of the methods of reproduction implemented by a number of different parasitic organisms including this Toxoplasma gondii protozoan. This process involves the creation of two new daughter cells inside the original, or mother cell, which ends up being consumed during the process. There is no nuclear conjugation involved in this process.

A – A Toxoplasma gondii parasite

B – The structure of the nucleus begins to change, becoming concentric, sprouting two cone-shaped protuberances, known as conoids

C – The conoids continue developing, forcing the nucleus to undergo division as well

D – The two early daughter cells enlarge within the mother cell

E – The fully-formed daughter cells emerge from the mother cell

F – The daughter cells engulf the mother cell and will divide, becoming to unique T. gondii parasites
High Resolution: Click here for hi-resolution image (6.14 MB)
Content Provider(s): CDC/ Dr. Alexander Sulzer
Creation Date: 1978
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.