ISSN:
1573-5117
Keywords:
dedifferentiation
;
redifferentiation
;
degeneration
;
neoblast
;
copulatory apparatus
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Following decapitation of Bdellocephala brunnea Ijima et Kaburaki and subsequent repeated removal of regenerating head-blastemas, the copulatory apparatus degenerated within 40–60 days. The copulatory apparatus disintegrated into cell clusters that further divided into separate neoblast-like cells that, in turn, eventually transformed into ordinary parenchymal cells by 60 days after decapitation. When the head of worms with a degenerate copulatory apparatus was allowed to regenerate by discontinuing excision of the head blastema, a new copulatory apparatus differentiated, ostensibly from the dedifferentiated cells. The neoblast-like cells appear to participate in the redifferentiation of the penis and of other parts of the copulatory apparatus.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00027580
Permalink
