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Regeneration in L. variegatus follows a set pattern which was studied by the Russian embryologist Piotr Ivanov. If the regenerating segment originated less than eight segments from the anterior tip, this number of segments are regenerated; if, however, the segment was originally from a more posterior position, only eight segments are regenerated.
His research was on the regeneration of segments in the worm Lumbriculus variegatus for which he received a gold medal in 1901. He then went to the biological research station, Naples to study regeneration in marine annelids.
Lumbriculus; This specimen has two tails, possibly because an injury to the tail caused it to grow a replacement. Scientific classification; Domain:
Examples include the injection of stem cells or progenitor cells obtained through directed differentiation (cell therapies); the induction of regeneration by biologically active molecules administered alone or as a secretion by infused cells (immunomodulation therapy); and transplantation of in vitro grown organs and tissues (tissue engineering).
Species in this genus infect the blackworm (Lumbriculus variegatus).The asexual forms, crescentic or spiral shaped, may be found in virtually any tissue of the host. The multinucleate vermicular meronts are ~35 μm in length and occur in the coelomic cavity and various tissues of the host.
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Epimorphosis is defined as the regeneration of a specific part of an organism in a way that involves extensive cell proliferation of somatic stem cells, [1] dedifferentiation, and reformation, [2] as well as blastema formation. [3]
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