M. Bamdad et al., EPINIGERICIN TOXICITY TOWARDS TETRAHYMENA-PYRIFORMIS GL - CHANGES IN CELL-VOLUME AND INTRACELLULAR PH, Applied microbiology and biotechnology, 44(1-2), 1995, pp. 206-209
A study of the toxicity of epinigericin, an antibiotic ionophor, towar
ds the ciliate Tetrahymena pyriformis showed that this molecule stoppe
d cell division, increased cell volume and led to a more basic intrace
llular pH. The action of epinigericin was probably linked to its funct
ion as an ionophor. The ionic selectivity of this molecule is still no
t known. The raising of the intracellular pH of ciliates by this antib
iotic may be linked to its toxic action and its ion-transport mechanis
m in Tetrahymena.