RRC ID 54512
Author Homoto S, Izawa S.
Title Persistent actin depolarization caused by ethanol induces the formation of multiple small cortical septin rings in yeast.
Journal J Cell Sci
Abstract Short-term exposure to severe ethanol stress has adverse effects on yeast cells. However, limited information is available on the effects of long-term exposure to severe ethanol stress. In this study, we examined the effects of a long-term treatment with a high ethanol concentration [10% (v/v)] on yeast morphology. We found that long-term severe ethanol stress induced the continuous depolarization of the actin cytoskeleton and hypertrophy in yeast cells, accompanied by the aberrant localization of septins, which formed multiple small cortical rings (MSCRs). The formation of MSCRs was also induced by the continuous depolarization of the actin cytoskeleton caused by a treatment with latrunculin-A, an effective inhibitor of actin polymerization. Unlike the formation of conventional septin rings, the formation of MSCRs did not require Cdc42 and its effectors, Gic1, Gic2 and Cla4. These results provide novel insights into the effects of persistent actin depolarization caused by long-term exposure to severe ethanol stress on yeast cytomorphology.
Volume 131(15)
Published 2018-8-3
DOI 10.1242/jcs.217091
PII jcs.217091
PMID 29991513
MeSH Actin Cytoskeleton / drug effects Actin Cytoskeleton / metabolism Actins / metabolism* Cell Polarity / drug effects Cytoskeleton / drug effects Cytoskeleton / metabolism Ethanol / pharmacology* Saccharomyces cerevisiae / drug effects Saccharomyces cerevisiae / metabolism Saccharomyces cerevisiae Proteins / metabolism Septins / metabolism*
IF 4.517
Times Cited 1
Yeast BY25734 BY25840 BY22783 BY24975 BYP6876(pGFP316-CDC11) BYP6867(pGFP316-CDC10) BYP6856(pGFP316-CDC3) BYP6884(pGFP316-CDC12) BYP6903(pGFP316-SHS1)