Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-26T06:50:47.668Z Has data issue: false hasContentIssue false
  • English
  • Français

Ultrastructure of Candida Albicans And Saccharomyces Cerevisiae After Treatment With Sch 56301 (An Aureobasidin)

Published online by Cambridge University Press:  02 July 2020

B.J. Dovey-Hartman ,
C. Cramer ,
J. Greene ,
K.J. Shaw ,
R.S. Hare  and
B. DiDomenico
B.J. Dovey-Hartman
Affiliation:
Schering-Plough Research Institute, P.O. Box 32, 144 Route 94, Lafayette, NJ07848
C. Cramer
Affiliation:
Schering-Plough Research Institute, 2015 Galloping Hill Rd., Kenilworth, NJ07033
J. Greene
Affiliation:
Schering-Plough Research Institute, 2015 Galloping Hill Rd., Kenilworth, NJ07033
K.J. Shaw
Affiliation:
Schering-Plough Research Institute, 2015 Galloping Hill Rd., Kenilworth, NJ07033
R.S. Hare
Affiliation:
Schering-Plough Research Institute, 2015 Galloping Hill Rd., Kenilworth, NJ07033
B. DiDomenico
Affiliation:
Schering-Plough Research Institute, 2015 Galloping Hill Rd., Kenilworth, NJ07033
Get access

Extract

Aureobasidins are cyclic depsipeptide natural products that have been shown to be fungicidal against a wide variety of fungi. We have studied the effect of an aureobasidin-like compound, SCH 56301 on the morphology and cytology of yeast cells. For both, Candida albicans and Saccharomyces cerevisiae, the normal cell cycle is disrupted by sub-lethal concentrations of the compound. In Saccharomyces, cells accumulate at the G2/M border of the cell cycle, DNA replication is essentially complete and a short nuclear spindle is visible; however, nuclear migration and spindle elongation do not occur and consequently a small round daughter cell remains attached to the mother cell. Changes in cell wall morphology are visible at old bud scars remaining on mother cells. Under the conditions of preparation of the specimens, there may have been insufficient cross-linking during treatment with SCH 56301 so that intracellular pressure appears to be pushing on a weakened cell wall at these points.

Type
Biological Ultrastructure (Cells, Tissues, Organ Systems)
Information
Microscopy and Microanalysis , Volume 5 , Issue S2: Proceedings: Microscopy & Microanalysis '99, Microscopy Society of America 57th Annual Meeting, Microbeam Analysis Society 33rd Annual Meeting, Portland, Oregon August 1-5, 1999 , August 1999 , pp. 1276 - 1277
Copyright
Copyright © Microscopy Society of America

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Nagiec, M.M. et al., J. of Biological Chemistry 272(1997) 9809.CrossRefGoogle Scholar
2.The authors wish to thank Kristin Becker and Faith Solinger for valuable technical assistance.Google Scholar