The respiratory response to heat shock in Neurospora crassa

Donald Habel, Nora Plesofsky-Vif, Robert M Brambl

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10 Scopus citations


A sharp decrease in oxygen uptake occurred in Neurospora crassa cells that were transferred from 30°C to 45°C, and the respiration that resumed later at 45°C was cyanide-insensitive. Energization of mitochondria, measured in vivo with fluorescence microscopy and a carbocyanine dye, also declined sharply in cells at 45°C. Electron microscopy showed no changes in mitochondrial complexity; however, the cytoplasm of heat-shocked cells was deficient in glycogen granules.

Original languageEnglish (US)
Pages (from-to)317-322
Number of pages6
JournalFEMS Microbiology Letters
Issue number3
StatePublished - Jul 1 1991

Bibliographical note

Funding Information:
This research was supported by grants from the National Institute of General Medical Sciences (GM-19398) and the United States Depart- merit of Agriculture Competitive Research Grants Office (88-37264-4045).

Copyright 2018 Elsevier B.V., All rights reserved.


  • Glycogen
  • Heat shock
  • Microscopy
  • Mitochondria
  • Neurospora crassa
  • Respiration


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