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Cytofluorimetric evidence for meiosis in gametangial nuclei of Phytophthora drechsleri

Published online by Cambridge University Press:  14 April 2009

A. Martin Mortimer  and
David S. Shaw
A. Martin Mortimer
Affiliation:
School of Plant Biology, University College of North Wales, Bangor, Gwynedd, U.K.
David S. Shaw
Affiliation:
School of Plant Biology, University College of North Wales, Bangor, Gwynedd, U.K.
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Summary

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Relative DNA contents of samples of nuclei from hyphal tips and from gametangia at different stages of development have been obtained by cytofluorimetry. The occurrence of nuclei with 4C, 2C and 1C DNA complements in gametangia and mainly 2C complements in hyphae indicates that meiosis takes place in the gametangia of Phytophthora drechsleri.

Type
Short Papers
Information
Genetics Research , Volume 25 , Issue 2 , April 1975 , pp. 201 - 205
Copyright
Copyright © Cambridge University Press 1975

References

REFERENCES

Barksdale, A. W. (1968). Meiosis in the antheridium of Achlya ambisexualis E. 87. Journal of the Elisha Mitchell Scientific Society 84, 187–194.Google Scholar
Boccas, B. (1972). Contribution à l'étude du cycle chez les Phytophthora. Analyse du mode de transmission d'un caractère génétique quantitatif chez une espèce homothallique, le Phytophthora syringae Kleb. Compte rendu hebdomadaire des Séances de I'Académie des Sciences, Paris 275, 663–666.Google Scholar
Bryant, T. R. & Howard, K. L. (1969). Meiosis in the Oomycetes. 1. A microspectrophoto metrie analysis of DNA in Saprolegnia terrestris. American Journal of Botany 56, 1075–1083.CrossRefGoogle Scholar
Dick, M. W. & Win-Tin, (1973). The development of cytological theory in the Oomycetes. Biological Reviews 48, 133–158.Google Scholar
Elliott, C. G. & MacIntyre, D. (1973). Genetical evidence on the life-history of Phytophthora. Transactions of the British Mycological Society 60, 311–316.CrossRefGoogle Scholar
Galindo, J. A. & Zentmyer, G. A. (1967). Genetical and cytological studies of Phytophthora strains pathogenic to pepper plants. Phytopathology 57, 1300–1304.Google Scholar
Howard, K. L. & Bryant, T. R. (1971). Meiosis in the Oomycetes. II. A microspectrophotometric analysis of DNA in Apodachlya brachynema. Mycologia 63, 58–68.CrossRefGoogle Scholar
Huguenin, N. & Boccas, B. (1970). Cytologic vegetale. Etude de la caryocinèse chez le Phytophthora parasitica Dastur. Compte rendu hebdomadaire des Séances de I'Académie des Sciences, Paris 271, 660–663.Google Scholar
Khaki, I. A. & Shaw, D. S. (1974). The inheritance of drug resistance and compatibility type in Phytophthora drechsleri. Genetical Research 23, 75–86.CrossRefGoogle Scholar
Lasure, L. L. & Griffin, D. H. (1974). Evidence for diploidy in Achlya bisexualis based on inheritance of cycloheximide resistance. Mycologia 66, 391–396.CrossRefGoogle ScholarPubMed
Newcomer, E. H. (1953). A new cytological and histological fixing fluid. Science 118, 161.CrossRefGoogle Scholar
Ruch, F. (1970). An Introduction to Quantitative Cytochemistry (ed. Weid, G. L.), pp. 281–295. New York: Academic Press.Google Scholar
Sansome, E. R. (1961). Meiosis in the oogonium and antheridium of Pythium debaryanum Hesse. Nature, Lond. 191, 827–828.CrossRefGoogle Scholar
Sansome, E. (1963). Meiosis in Pythium debaryanum Hesse and its significance in the life history of the Biflagellatae. Transactions of the British Mycological Society 46, 63–72.CrossRefGoogle Scholar
Sansome, E. (1965). Meiosis in dipliod and polyploid sex organs of Phytophthora and Achlya. Cytologia 30, 103–117.CrossRefGoogle Scholar
Sansome, E. (1966). Meiosis in the sex organs of the Oomyctes. In Chromosomes Today, vol. 1 (ed. by Darlington, C. D. and Lewis, K. R.), pp. 77–83. Edinburgh: Oliver and Boyd.Google Scholar
Sansome, E. R. & Harris, B. J. (1962). Use of camphor-induced polyploidy to determine the place of meiosis in fungi. Nature, Lond. 196, 291–292.CrossRefGoogle Scholar
Sansome, E. & Brasier, C. M. (1973). Diploidy and chromosomal structural hybridity in Phytophthora infestans. Nature, Lond. 241, 344–345.CrossRefGoogle Scholar
Sansome, E. & Sansome, F. W. (1974). Cytology and life-history of Peronospora parasitica on Capsella bursa-pastoris and of Albugo candida on C. bursa-pastoris and on Lunaria annua. Transactions of the British Mycological Society 62, 323–332.CrossRefGoogle Scholar
Savage, E. J., Clayton, C. W., Hunter, J. H., Brenneman, J. A., Laviola, C. & Gallegly, M. E. (1968). Homothallism, heterothallism and interspecific hybridisation in the genus Phytophthora. Phytopathology 58, 1004–1021.Google Scholar
Shaw, D. S. & Khaki, I. A. (1971). Genetical evidence for diploidy in Phytophthora. Genetical Research 17, 165–167.CrossRefGoogle Scholar
Stephenson, L. W., Erwin, D. C. & Leary, J. V. (1974 a). Cytology of somatic and gametangial nuclei in Phytophthora capsici and Phytophthora megasperma var. sojae. Canadian Journal of Botany 52, 2055–2060.CrossRefGoogle Scholar
Stephenson, L. W., Erwin, D. C. & Leary, J. V. (1974 b). Meiotic configurations in the oospore of Phytophthora capsici. Canadian Journal of Botany 52, 2141–2143.CrossRefGoogle Scholar
Tommerup, I. C., Ingram, D. S. & Sargent, J. A. (1974). Oospores of Bremia lactucae. Transactions of the British Mycological Society 62, 145–150.CrossRefGoogle Scholar