Premium
The fine structure of coelomocytes in the annelid Enchytraeus fragmentosus
Author(s) -
Hess Roberta T.
Publication year - 1970
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1051320307
Subject(s) - biology , coelom , golgi apparatus , phagocyte , microbiology and biotechnology , peritoneal cavity , phagocytosis , anatomy , endoplasmic reticulum
Two types of coelomocytes, the mucocyte and the phagocyte, occur in Enchytraeus fragmentosus. Other free cells observed within the coelomic cavity include chloragogen cells, peritoneal cells and some anucleate granular cells. Three forms of mucocytes occur and are believed to represent developmental stages. The first stage is one in which the mucous droplets are forming in the Golgi region. The second stage is a mature form, and the third stage is one in which the mucous droplets are being released. The phagocytes generally are quite large, and inclusions vary from recognizable portions of chloragogen cells to extremely small, electron‐dense cytosomes. The origin of the coelomocytes could not be determined. Probable functions of coelomocytes are discussed.