Mycopathologia

, Volume 67, Issue 1, pp 59–64 | Cite as

Temperature induced atypical morphogenesis of the obligately psychrophilic yeast, Leucosporidium stokesii

  • Scott A. Silver
  • N. A. Sinclair
Article

Abstract

The obligately psychrophilic yeast, Leucosporidium stokesii increased in size, produced irregular wall growth and formed atypical buds when incubated within one to three degrees above 20 °C, the maximum growth temperature. Incubation of cells anaerobically or aerobically in the presence of 2,4-dinitrophenol at the elevated temperatures prevented the development of atypical buds. An investigation of subcellular morphology revealed that the atypical bud was anucleate, did not form a septum between bud and parent cell and produced numerous cytoplasmic vesicles. On shift-down to 15 °C, the optimum growth temperature, nuclear division, migration and septum formation resumed.

Keywords

Migration Elevated Temperature Growth Temperature Optimum Growth Maximum Growth 

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Copyright information

© Kluwer Academic Publishers 1979

Authors and Affiliations

  • Scott A. Silver
    • 1
    • 2
  • N. A. Sinclair
    • 1
    • 2
  1. 1.Medical Biology DivisionOklahoma College of Osteopathic Medicine and SurgeryTulsa
  2. 2.Department of Microbiology, Pharmacy-Microbiology BuildingUniversity of ArizonaTucson

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