Accession Number : AD0688870

Title :   MEMBRANE CHANGES IN YEAST CELLS CAUSED BY SULFHYDRYL REAGENTS AND ACCOMPANIED BY A SELECTIVE RELEASE OF SUGAR.

Descriptive Note : Interim rept.,

Corporate Author : ARMY MEDICAL RESEARCH LAB FORT KNOX KY

Personal Author(s) : Spoerl,Edward

Report Date : 19 FEB 1969

Pagination or Media Count : 11

Abstract : An analysis was made of the effects of heat on cells by studying the mechanism involved in sugar retention by yeast, a phenomenon which is increased, along with an enhancement of CO2 production, by exposure of cells to increases in temperature. Iodoacetic acid or N-ethylmaleimide included in cell suspensions induce a complete efflux of sorbose in contrast to a usual two-phase exit and some retention. Pretreatment produces cells capable of uptake and complete exit. Microscopically, cell vacuoles are disrupted before methylene blue penetrates and stains the cells. Vacuoleless cells also allow increased sorbose efflux. (Author)

Descriptors :   (*YEASTS, MEMBRANES(BIOLOGY)), (*CELLS(BIOLOGY), THERMAL PROPERTIES), HEAT, CARBON DIOXIDE, ORGANIC SULFUR COMPOUNDS, CARBOHYDRATES, IODINE COMPOUNDS, ACETIC ACID, NITROGEN HETEROCYCLIC COMPOUNDS

Subject Categories : Anatomy and Physiology
      Microbiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE