1887

Abstract

Summary: One non-xerophilic fungus, , and four xerophilic fungi, and , were grown at six different water activities ( ) on media containing various concentrations of sodium chloride. Each species was sampled as soon as visible growth appeared and up to six times thereafter during various stages of the growth cycle. The fungal mycelium was extracted and assayed for glycerol using a specific enzymic method. At the highest , 0.997, only small amounts of glycerol were present in the fungi. At lower values, glycerol concentrations rose rapidly at first, then declined as the cultures aged. There appeared to be a correlation between the amount of glycerol accumulated, and the complexity of the spore-bearing structures. Glycerol depletion appeared to be related to the formation of spores and their maturation.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-132-2-269
1986-02-01
2024-04-20
Loading full text...

Full text loading...

/deliver/fulltext/micro/132/2/mic-132-2-269.html?itemId=/content/journal/micro/10.1099/00221287-132-2-269&mimeType=html&fmt=ahah

References

  1. Brown A. D. 1978; Compatible solutes and extreme water stress in eukaryotic micro-organisms. Advances in Microbial Physiology 17:181–242
    [Google Scholar]
  2. Curran P. M. T. 1971; Sporulation in some members of the Aspergillus glaucus group in response to osmotic pressure, illumination and temperature. Transactions of the British Mycological Society 57:201–211
    [Google Scholar]
  3. Eggstein M., Kuhlmann E. 1974; Triglycerides and glycerol. Determination after alkaline hydrolysis. Edited by El. U. Bergmeyer. London: Academic Press. In Methods of Enzymatic Analysis, pp. 1825:1831
    [Google Scholar]
  4. Frank M., EIess E. 1941; Studies on salt hsh. VI. Halophilic brown molds of the genus Sporendonema emend. Ciferri et Redaelli. Journal of the Fisheries Research Board of Canada 5:287–292
    [Google Scholar]
  5. Hocking A. D., Norton R. S. 1983; Natural-abundance 1 ’C nuclear magnetic resonance studies on the internal solutes of xerophilic fungi. Journal of General Microbiology 129:2915–2925
    [Google Scholar]
  6. Hocking A. D., Pitt J. I. 1979; Water relations of some Penicillium species at 25 °C. Transactions of the British Mycological Society 73:141–145
    [Google Scholar]
  7. Luard E. J. 1982; Accumulation of intracellular solutes by two filamentous fungi in response to growth at low steady state osmotic potential. Journal of General Microbiology 128:2563–2574
    [Google Scholar]
  8. Luard E. J., Griffin D. M. 1981; Effect of water potential on fungal growth and turgor. Transactions of the British Mycological Society 76:33–40
    [Google Scholar]
  9. Maclean D. J., Scott K. J. 1976; Identification of glucitol (sorbitol) and ribitol in a rust fungus Puccinia graminis f. sp. tritici. . Journal of General Microbiology 97:83–89
    [Google Scholar]
  10. Pitt J. I., Christian J. H. B. 1968; Water relations of xerophilic fungi isolated from prunes. Applied Microbiology 16:1853–1858
    [Google Scholar]
  11. Pitt J. I., Hocking A. D. 1977; Influence of solute and hydrogen ion concentration on the water relations of some xerophilic fungi. Journal of General Microbiology 101:35–40
    [Google Scholar]
  12. Pitt J. I., Hocking A. D. 1985; New species of fungi from Indonesian dried fish. Mycotaxon 22:197–208
    [Google Scholar]
  13. Robinson R. A., Stokes R. H. 1955; Electrolyte Solutions. London: Butterworth.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-132-2-269
Loading
/content/journal/micro/10.1099/00221287-132-2-269
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error