Nuclear Behaviour and Spindle-pole Bodies During Ascosporogenesis in Free

Abstract

SUMMARY: The behaviour of nuclei and spindle-pole bodies in Korf & O’Donnell, a homothallic Discomycete, was investigated by light microscopy from ontogeny of the crozier up to ascosporogenesis. All nuclear divisions appeared to be intranuclear. Plaque-shaped spindle-pole bodies were discernible during the synchronous mitotic division in the crozier, the reductional division in the ascus and the mitotic division preceding sporogenesis. The intranuclear reductional division was of the ‘Neurospora type’ with no time interval between karyogamy and the onset of meiosis. This type of meiosis is further characterized by the presence of highly contracted homologues at synapsis and the absence of leptotene. A comparison of the behaviour of spindle-pole bodies in this species with other members of the Euascomycetidae is presented.

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1974-04-01
2024-03-29
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References

  1. Aist J. R., Williams P. H. 1972; Ultrastructure and time course of mitosis in the fungus Fusarium oxysporum . Journal of Cell Biology 55:368–389
    [Google Scholar]
  2. Beckett A., Crawford R. M. 1970; Nuclear behaviour and ascospore delimitation in Xylosphaera polymorpha . Journal of General Microbiology 63:269–280
    [Google Scholar]
  3. Beckett A., Wilson I. M. 1968; Ascus cytology of Podospora anserina . Journal of General Microbiology 53:81–87
    [Google Scholar]
  4. Bowers B., Korn E. D. 1968; The fine structure of Acanthamoeba castellanii. I. The trophozoite. Journal of Cell Biology 39:95–111
    [Google Scholar]
  5. Carr A.J.H., Olive L. S. 1958; Genetics of Sordaria fimicola II. Cytology. American Journal of Botany 45:142–150
    [Google Scholar]
  6. Carroll G. C. 1969; A study of the fine structure of ascosporogenesis in Saccobolus kerverni . Archiv für Mikrobiologie 66:321–339
    [Google Scholar]
  7. Doguet G. 1960; Contribution à l’étude du noyau du Sordaria fimicola . Revue de cytologie et de biologie végétales 22:109–127
    [Google Scholar]
  8. Girbardt M. 1968; Ultrastructure and dynamics of the moving nucleus. Symposium of the Society for Experimental Biology 22:249–259
    [Google Scholar]
  9. Girbardt M. 1971; Ultrastructure of the fungal nucleus. II. The kinetochore equivalent (KCE). Journal of Cell Science 2:453–473
    [Google Scholar]
  10. Heslot H. 1958; Contribution à l’étude cytogénétique et génétique des Sordariacées. Revue de cytologie et de biologie végétales 19:supplement 21–209
    [Google Scholar]
  11. Hollande A., Cachon J., Cachon M. 1969; La dinomitosis atractophorienne à fuseau endonucléaire chez les Radiolaires Thalassophysidae . Comptes rendus hebdomadaire des séances de l’Académie des sciences D269:179–182
    [Google Scholar]
  12. Hung C. Y., Wells K. 1971; Light and electron microscopic studies of crozier development in Pyronema domesticum . Journal of General Microbiology 66:15–27
    [Google Scholar]
  13. Laane M. 1970a; Nuclear behaviour during meiosis and ascus formation in Penicillium striatum . Hereditas 65:133–158
    [Google Scholar]
  14. Laane M. 1970b; The vegetative ultrastructure in Penicillium . Årbok for Universitetet i Bergen 4:1–16
    [Google Scholar]
  15. Lu B. C. 1967; The course of meiosis and centriole behaviour during the ascus development of the asco-mycete Gelasinospora calospora . Chromosoma 22:210–226
    [Google Scholar]
  16. Lu B. C., Raju N. B. 1970; Meiosis in Coprinus. II. Chromosome pairing and the lampbrush diplotene stage of meiotic prophase. Chromosoma 29:305–316
    [Google Scholar]
  17. Manton I, Kowallik K., von Stosch H. A. 1969; Observations on the fine structure and development of the spindle at mitosis in a marine centric diatom (Lithodesmium undulatum). II. The early meiotic stages in male gametogenesis. Journal of Cell Science 5:271–298
    [Google Scholar]
  18. McCully K. E., Robinow C. F. 1972a; Meiosis in heterobasidiomycetous yeasts. I. Leucosporidium scottii (Candida scottii). Journal of Cell Science 10:857–881
    [Google Scholar]
  19. McCully K. E., Robinow C. F. 1972b; Meiosis in heterobasidiomycetous yeasts. II. Rhodosporidium sp. (Rhodotorula glutinis) and Aessosporon salmonicolor (Sporobolomyces salmonicolor). Journal of Cell Science 11:1–31
    [Google Scholar]
  20. McLaughlin D. J. 1971; Centrosomes and microtubules during meiosis in the mushroom Boletus rubinellus . Journal of Cell Biology 50:737–745
    [Google Scholar]
  21. Olive L. S. 1962; Chromosome numbers: fungi. In Growth Including Reproduction and Morphological Development pp. 33–44 Altman P. L., Dittmer D. S. Edited by Washington, D.C: Federation of American Societies for Experimental Biology;
    [Google Scholar]
  22. Olive L. S. 1965; Nuclear behaviour during meiosis. In The Fungi: AnAdvancedTreatise 1 pp. 143–161 Ainsworth G. C., Sussman A. S. Edited by New York: Academic Press;
    [Google Scholar]
  23. Pickett-Heaps J. D. 1969; The evolution of the mitotic apparatus: an attempt at comparative ultrastructural cytology in dividing plant cells. Cytobios 1:257–280
    [Google Scholar]
  24. Pickett-Heaps J. D. 1970; The behaviour of the nucleolus during mitosis in plants. Cytobios 6:69–78
    [Google Scholar]
  25. Raju N. B., Lu B. C. 1970; Meiosis in Coprinus. III. Timing of meiotic events in C. lagopus (sensu Buller). Canadian Journal of Botany 48:2183–2186
    [Google Scholar]
  26. Raju N. B., Lu B. C. 1973; Meiosis in Coprinus. IV. Morphology and behaviour of spindle pole bodies. Journal of Cell Science 12:131–141
    [Google Scholar]
  27. Reeves F. 1967; The fine structure of ascospore formation in Pyronema domesticum . Mycologia 59:1018–1033
    [Google Scholar]
  28. Schrantz J. P. 1970; Étude cytologique, en microscopie optique et électronique, de quelques Ascomycètes. I. Le noyau. Revue de cytologie et de biologie végétales 33:1–100
    [Google Scholar]
  29. Singleton J. R. 1953; Chromosome morphology and the chromosome cycle in the ascus of Neurospora crassa . American Journal of Botany 40:124–144
    [Google Scholar]
  30. Tilney L. G. 1971; Origin and continuity of microtubules. In Origin and Continuity of Cell Organelles 2 pp. 222–260 Reinert J., Ursprung H. Edited by New York: Springer-Verlag;
    [Google Scholar]
  31. Wells K. 1970; Light and electron microscopic studies of Ascobolus stercorarius. I. Nuclear divisions in the ascus. Mycologia 62:761–790
    [Google Scholar]
  32. Wells K. 1971; Basidial development in Sebacina sublilacina (Tremellales). First International Mycological Congress, Exeter 16:101
    [Google Scholar]
  33. Westergaard M., von Wettstein D. 1970; The nucleolar cycle in an ascomycete. Comptes rendus des travaux du Laboratoire Carlsberg 37:195–237
    [Google Scholar]
  34. Zickler D. 1967; Analysis de la méiose du champignon Discomycete Ascobolus immersus Pers. Compte rendu hebdomadaire des séances de l’Académie des sciences D265:198–201
    [Google Scholar]
  35. Zickler D. 1970; Division spindle and centrosomal plaques during mitosis and meiosis in some Ascomycetes. Chromosoma 30:287–304
    [Google Scholar]
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