F-actin contractile rings in protoplasts of the yeast Schizosaccharomyces - PubMed (original) (raw)
Comparative Study
F-actin contractile rings in protoplasts of the yeast Schizosaccharomyces
J Jochová et al. Cell Biol Int Rep. 1991 Jul.
Abstract
By rhodamine-phalloidin fluorescence, distinct continuous F-actin rings were visualized in 18-20% of the protoplasts of Schizosaccharomyces pombe and S. japonicus var. versatilis, in addition to randomly distributed F-actin dots. Whereas the reversion of ring-lacking protoplasts coincided with the polarization of the dotted F-actin pattern, the ring-containing protoplasts became furrowed as the F-actin rings constricted. The furrowing was more conspicuous in S. japonicus var. versatilis than in S. pombe protoplasts and it was blocked when the reversion was inhibited by Novozyme 234 indicating that the cell wall formation is essential for the F-actin ring constriction.
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