Document Detail


Distribution of neoblasts and mitoses during the asexual reproduction of the planarian Dugesia tigrina (Girard).
MedLine Citation:
PMID:  1129635     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The neoblast distribution in the prepharyngeal portion of the body remains unchanged during the asexual reproduction of planaria. During the first few days after fission, the number of neoblasts decreases in the portion of the body immediately adjoining the site of daughter zooid detachment and considerably increases in the regenerative bud. Starting with the fourth day after division, there is an increase in the number of neoblasts in the region of future fission, which can be regarded as one preparatory mechanism for the next fission. The mitosis distribution pattern is just the reverse: the regions of the body with the highest neoblast density are characterized by a low mitotic index or no dividing cells at all. The neoblast and mitosis distributions in the daughter zooid during its asexual reproduction cycle duplicate those observed in the maternal zooid.
Authors:
E B Krichinskaya; M G Martynova
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Soviet journal of developmental biology     Volume:  5     ISSN:  0049-173X     ISO Abbreviation:  Sov J Dev Biol     Publication Date:  1975 Jul 
Date Detail:
Created Date:  1975-07-14     Completed Date:  1975-07-14     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0315573     Medline TA:  Sov J Dev Biol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  309-14     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Count
Mitosis
Planarians / cytology,  physiology*
Reproduction*
Reproduction, Asexual*
Time Factors
Turbellaria / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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