1887

Abstract

SUMMARY: Observations on have confirmed that bursting of hyphal apices is brought about by an excessive water potential gradient across the hyphal membrane. Low concentrations of the non-metabolizable sugars 3--methyl-glucose and -sorbose are much more effective than metabolizable sugars in producing bursting. However, at high concentrations they have a protective effect by reducing the water potential gradient. These observations allow a reinterpretation of sugar transport kinetic data which suggested that the glucose transport system in filamentous fungi can exist in two states dependent on the repressive effect of glucose.

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1976-09-01
2022-01-21
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References

  1. Allaway A. E., Jennings D. H. 1970a; The influence of cations on glucose uptake by the fungus Dendryphiella salina. New Phytologist 69:567–579
    [Google Scholar]
  2. Allaway A. E., Jennings D. H. 1970b; The influence of cations on glucose transport and metabolism by and the loss of sugar alcohols from the fungus Dendryphiella salina. New Phytologist 69:581–593
    [Google Scholar]
  3. Bartnicki-Garcia S. 1973; Fundamental aspects of hyphal morphogenesis. Symposia of the Society for General Microbiology 23:245–268
    [Google Scholar]
  4. Bartnicki-Garcia S., Lippman E. 1972; The bursting tendency of hyphal tips of fungi: presumptive evidence for a delicate balance between wall synthesis and wall lysis in apical growth. Journal of General Microbiology 73:487–500
    [Google Scholar]
  5. Holligan P. M., Jennings D. H. 1972a; Carbohydrate metabolism in the fungus Dendryphiellasalina. I.Changes in the levels of soluble carbohydrates during growth. New Phytologist 71:569–582
    [Google Scholar]
  6. Holligan P. M., Jennings D. H. 1972b; Carbohydrate metabolism in the fungus Dendryphiella salina. II.The influence of different carbon and nitrogen sources on the accumulation of mannitol and arabitol. New Phytologist 71:583–594
    [Google Scholar]
  7. Jennings D. H., Austin S. 1973; The stimulatory effect of the non-metabolized sugar 3-O-methyl glucose on the conversion of mannitol and arabitol to polysaccharide and other insoluble compounds in the fungus Dendryphiella salina. Journal of General Microbiology 75:287–294
    [Google Scholar]
  8. Macdermott J.C.B., Jennings D. H. 1976; The relationship between the uptake of glucose and 3-O-methylglucose and soluble carbohydrate and polysaccharide in the fungus Dendryphiella salina. Journal of General Microbiology (in the Press)
    [Google Scholar]
  9. Neville M. M., Suskind S. R., Roseman S. 1971; A derepressible active transport system for glucose in Neurosporacrassa. Journal of Biological Chemistry 246:1294–1301
    [Google Scholar]
  10. Rizvi S.R.H., Robertson N. F. 1965; Apical disintegration of hyphae of Neurospora crassa as a response to l-sorbose. Transactions of the British Mycological Society 48:469–477
    [Google Scholar]
  11. Scarborough G. A. 1970a; Sugar transport in Neurospora crassa. Journal of Biological Chemistry 245:1694–1698
    [Google Scholar]
  12. Scarborough G. A. 1970b; Sugar transport inNeurosporacrassa. II. A second glucose transport system. Journal of Biological Chemistry 245:3985–3987
    [Google Scholar]
  13. Schneider R. P., Wiley R. P. 1971a; Kinetic characteristics of the two glucose transport systems inNeurospora. Journal of Bacteriology 106:479–486
    [Google Scholar]
  14. Schneider R. P., Wiley R. P. 1971b; Regulation of sugar transport inNeurospora crassa. Journal of Bacteriology 106:487–492
    [Google Scholar]
  15. Schulte T. H., Scarborough G. A. 1975; Characterization of the glucose transport system inNeurospora crassa s1. Journal of Bacteriology 122:1076–1080
    [Google Scholar]
  16. Slayman C. W., Tatum E. L. 1964; Potassium transport inNeurospora. I. Intracellular sodium and potassium concentrations and cationreauirements for growth. Biochimica et biophysica acta 88:578–592
    [Google Scholar]
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