Engagement of the periesophageal ring during Holothuria polii response to erythrocyte injection.

نویسندگان

  • G D'Ancona Lunetta
  • M L Michelucci
چکیده

In Holothuria polii, the periesophageal ring is an important organ supplying spherule cells after stimulation with foreign material. In animals injected with formalinized sheep erythrocytes, in fact, a depletion of spherule cells is observed in the periesophageal ring, whereas in the connective tissue, in the external epithelium and around the antigen-injected site, small, transparent cells can be visualized. It is supposed that the latter are stem cells of spherule cells.

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عنوان ژورنال:
  • European journal of histochemistry : EJH

دوره 46 2  شماره 

صفحات  -

تاریخ انتشار 2002