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Cytology of germination of spores of homosporous ferns

Published online by Cambridge University Press:  05 December 2011

V. Raghavan
V. Raghavan
Affiliation:
Department of Botany, The Ohio State University, Columbus 43210, Ohio, U.S.A.
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Synopsis

Certain aspects of the cytology of germination of spores of Anemia phyllitidis and Pteris vittata, with particular reference to the role of nucleic acid synthesis, are reviewed. As studied by autoradiography of 3H-thymidine or 3H-uridine incorporation, spore germination resulting in the formation of the rhizoid and protonemal cell is accompanied by the synthesis of DNA and RNA. Experiments using inhibitors of RNA synthesis on gibberellic acid-induced germination of spores of A. phyllitidis have indicated that dry spores contain conserved mRNA and that gibberellic acid-induced polyadenylation of mRNA occurs during the early phase of germination of spores. Recent demonstrations of the presence of polyadenylated mRNA in dry spores of A. phyllitidis suggest specific roles for both functional, conserved mRNA containing polyadenylic acid, as well as for gibberellic acid-induced polyadenylation of mRNA during the early phase of spore germination.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 86: The Biology of Pteridophytes , 1985 , pp. 5 - 11
Copyright
Copyright © Royal Society of Edinburgh 1985

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References

Bassel, A. R. 1985. Asymmetric cell division and differentiation; fern spore germination as a model. II. Ultrastructural studies. Proc. Roy. Soc. Edinb. 86B, 227–230.Google Scholar
DeMaggio, A. E. and Stetler, D. A. 1985. Mobilisation of storage reserves during fern spore germination. Proc. Roy. Soc. Edinb. 86B, 195–202.Google Scholar
Fechner, A. and Schraudolf, H. 1982. Isolation and characterization of poly(adenylic acid)-containing ribonucleic acid from dry spores of Anemia phyllitidis L. Sw. Z. PflPhysiol. 108, 108–419.Google Scholar
Fisher, R. W. and Miller, J. H. 1978. Growth regulation by ethylene in fern gametophytes. V. Ethylene and the early events of spore germination. Am. J. Bot. 65, 65–334.Google Scholar
Gemmrich, A. R. 1979. Lipid synthesis in imbibed spores of the fern Anemia phyllitidis L. Sw. Z. PflPhysiol. 91, 91–317.Google Scholar
Huckaby, C. S. and Raghavan, V. 1981. The spore-germination pattern of Thelypteroid ferns. Am. J. Bot. 68, 68–517.Google Scholar
Miller, J. H. 1985. Asymmetric cell division and differentiation; fern spore germination as a model. I. Physiological aspects. Proc. Roy. Soc. Edinb. 86B, 213–226.Google Scholar
Raghavan, V. 1976. Gibberellic acid-induced germination of spores of Anemia phyllitidis. Nucleic acid and protein synthesis during germination. Am. J. Bot. 63, 63–960.Google Scholar
Raghavan, V. 1977a. Gibberellic acid-induced germination of spores of Anemia phyllitidis: autoradiographic study of the timing and regulation of nucleic acid and protein synthesis in relation to cell morphogenesis, J. Cell Sci. 23, 23–85.Google Scholar
Raghavan, V. 1977b. Cell morphogenesis and macromolecule synthesis during phytochrome-controlled germination of spores of the fern, Pteris vittata. J. Exp. Bot. 28, 28–439.CrossRefGoogle Scholar
Raghavan, V. 1981a. A transient accumulation of poly(A)-containing RNA in the tapetum of Hyoscyamus niger during microsporogenesis. Devl. Biol. 81, 81–342.Google Scholar
Raghavan, V. 1981b. Distribution of poly (A)-containing RNA during normal pollen development and during induced pollen embryogenesis in Hyoscyamus niger. J. Cell Biol. 89, 89–593.Google Scholar
Rutter, M. R. and Raghavan, V. 1978. DNA synthesis and cell division during spore germination in Lygodium japonicum. Ann, Bot. 42, 42–957.Google Scholar
Towill, L. R. 1985. Mobilisation of carbohydrates during germination of spores of Onoclea sensibilis L. Proc. Roy. Soc. Edinb. 86B, 203–212.Google Scholar
Wada, M. 1985. Photoresponses in cell cycle regulation, Proc. Roy. Soc. Edinb. 86B, 231–235.Google Scholar