Sclerotization in Relation to Plasmodial Senescence in the Acellular Slime Mould Free

Abstract

When subjected to dehydration, plasmodia differentiate into sclerotia which can be maintained for long periods and exhibit no discernible O uptake. While actively growing plasmodia display the phenomenon of senescence, this ageing is delayed in sclerotia by the duration of the sclerotized state. Upon rehydration, plasmodia live the remainder of their characteristic life spans. Hence, the timing mechanism for senescence is conserved during this reversible differentiation pathway.

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1982-07-01
2024-03-28
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References

  1. Clark J., Hakim R. 1980; Ageing of plasmodial heterokaryons in Didymium iridis . Molecular and General Genetics 178:419–422
    [Google Scholar]
  2. Collins O. 1961; Heterothallism and homothallism in two myxomycetes. American Journal of Botany 48:674–683
    [Google Scholar]
  3. Daniel J., Baldwin H. 1964 In Methods in Cell Physiology 1D:9–40
    [Google Scholar]
  4. Dee J. 1975; Slime molds in biological research. Science Progress 62:523–542
    [Google Scholar]
  5. Esser K., Keller W. 1976; Genes inhibiting senescence in the ascomycete Podospora anserina . Molecular and General Genetics 144:107–110
    [Google Scholar]
  6. Jump J. 1954; Studies of sclerotization in Physarum polycephalum . American Journal of Botany 41:561–567
    [Google Scholar]
  7. Lestourgeon W., Nations C., Rusch H. 1973; Temporal synthesis and intranuclear accumulation of the nuclear acidic proteins during periods of chromatin reactivation in Physarum polycephalum . Archives of Biochemistry and Biophysics 159:861–872
    [Google Scholar]
  8. Lott T., Clark J. 1980; Plasmodial senescence in the acellular slime mold Didymium iridis . Experimental Cell Research 128:455–457
    [Google Scholar]
  9. Lovely J., Threlfall R. 1978; Adenylate cyclase and cyclic AMP phosphodiesterase activity during the mitotic cycle of Physarum polycephalum . Biochemical and Biophysical Research Communications 85:579–584
    [Google Scholar]
  10. Mccormick J., Blomquist J., Rusch H. 1970; Isolation and characterization of an extracellular polysaccharide from Physarum polycephalum . Journal of Bacteriology 104:1100–1118
    [Google Scholar]
  11. Mccullough C., Cooke D., Foxon J., Sudberry P., Grant W. 1973; Nuclear DNA content and senescence in Physarum polycephalum . Nature New Biology 245:263–265
    [Google Scholar]
  12. Poulter R. 1969 Senescence in Physarum polycephalum Ph.D. thesis University of Leicester, U.K.:
    [Google Scholar]
  13. Smith J. R., Rubenstein I. 1973; Cytoplasmic inheritance of the timing of ‘senescence’ in Podospora anserina . Journal of General Microbiology 76:297–304
    [Google Scholar]
  14. Sullivan A. 1953; Some aspects of the biochemistry of dormancy in the myxomycete Physarum polycephalum . Physiologia plantarum 6:804–815
    [Google Scholar]
  15. Tudzynski P., Esser K. 1977; Inhibitors of mitochondrial function prevent senescence in the ascomycete Podospora anserina . Molecular and General Genetics 153:111–113
    [Google Scholar]
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