EXPERIMENTAL OBSERVATIONS UPON THE ENDODERMAL GLANDS OF PELMATOHYDRA OLIGACTIS

Open Access

1 May 1929

journal article
research article
Published by University of Chicago Press in The Biological Bulletin

Vol. 56 (5) , 341-346
https://doi.org/10.2307/1537073

Abstract

It appears that the presence of peristomal cells are necessary for the killing and digestion of paramœcia when they are thrown into the cœlenteron that has been previously rinsed out with an alkaline medium. This raises the suggestion that the preliminary (acid) phase of digestion is induced by the secretions of the peristomal gland cells.