Abstract
Effect of environmental conditions on formation of Nicotiana tabacum L. megagametophyte was studied. It was established, that unfavorable temperatures can specifically modify the structure of embryo sacs (ES). At low temperature (9/5 °C), ES with a reduced number of cells or with egg-like synergide(s) can be formed; at high variable (40/25 °C) or constant (37 °C) temperatures, ES with excessive numbers of cells or with synergide-like egg cells arise. Total frequencies of the changed ES patterns varied from 8 up to 35 % per plant and depended on the plant genotype and conditions of exposure.
Similar content being viewed by others
References
Chaudhury, A.M., Ming, L., Miller, C., Craig, S., Dennis, E.S., Peacock, W.J.: Fertilization-independent seed development in Arabidopsis thaliana (ovule apomixis).-Proc. nat. Acad. Sci. USA 94: 4223-4228, 1997.
Chebotaru, A.A.: [To a question on experimental embryology of maize].-In: Kovarsky, A.E. (ed.): Genetika, Selektsiya i Semenovodstvo Kukuruzy. [Genetics, Selection and Seed Improving of Maize.] Pp. 169-181. Kartya Moldovenyaske, Kishinev 1965. [In Russ.]
Dharamadhaj, P., Prakash, N.: Development of the anther and ovule in Capsicum.-Aust. J. Bot. 26: 433-439, 1978.
Drews, G.N., Lee, D., Christensen, C.A.: Genetic analysis of female gametophyte development and function.-Plant Cell 1: 5-17, 1998.
Enaleeva, N.: A tobacco mutant with a reduced cell number in embryo sacs. 1. Expression of the mutation in plants of different generations at the mature gametophyte stage.-Sex. Plant Reprod. 10: 300-304, 1997.
Enaleeva, N.Kh., Tyrnov, V.S., Khokhlov, S.S.: [Dissection of the embryo sacs of some angiosperms by means of tissue maceration].-Tsytol. Genet. 6: 439-441, 1972. [In Russ.]
Gupta, R.K., Roy, R.P., Singh, A.P.: Aposporous apomixis: seasonal variation in tetraploid Dichantium annulatum (Forssk.) Stapf.-Port. Acta biol. A11: 253-260, 1969–1970.
Hjelmqvist, H., Grazi, F.: Studies on variation in embryo sac development.-Bot. Notiser 117: 141-166, 1964.
Huyghe, C.: [The haploid-diploid polyembryony in flax (Linum usitatissimum L.)].-Etudes cytol. physiol. agron. 7: 567-573, 1987. [In French.]
Knox, R.B. Apomixis: seasonal and population differences in a grass.-Science 157: 325-326, 1967.
Knox, R.B., Heslop-Harrison, J.: Experimental control of aposporous apomixis in a grass of the Andropogoneae.-Bot. Notis. 116: 127-141, 1963.
Lin, B.Y.: Structural modifications of the female gametophyte associated with the indeterminate gametophyte (ig) mutant in maize.-Can. J. Genet. Cytol. 20: 249-257, 1978.
Lin, B.Y.: Megagametogenetic alterations associated with the indeterminate gametophyte (ig) mutation in maize.-Rev. bras. Biol. 41: 557-563, 1981.
Lobanova, L., Enaleeva, N.: The development of embryo sacs in in vitro ovaries of Nicotiana tabacum L.-Plant Sci. 132: 191-202, 1998.
Nogler, G.A.: Gametophytic apomixis.-In: Jory, B.M. (ed.): Embryology of Angiosperms. Pp. 475-518. Springer-Verlag, Berlin 1984.
Ohad, N., Margossian, L., Hsu, Y.C., Williams, C., Repetti, P., Fischer, R.L.: A mutation that allows endosperm development without fertilization.-Proc. nat. Acad. Sci. USA 93: 5319-5324, 1996.
Poddubnaya-Arnoldy, V.A., Steshina, N.A., Sosnovets, A.G.: [Material to biology of flowering and reproduction of Scorzonera tau-saghyz Lipsh. et Osse].-Bot. Zh. 19: 338-364, 1934. [In Russ.]
Sheridan, W.F., Huang, B.Q.: Nuclear behavior is defective in the maize (Zea mays L.) lethal ovule 2 female gametophyte.-Plant J. 11: 1029-1041, 1997.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Enaleeva, N., Lobanova, L. Structural Modifications of the Female Gametophyte Induced by Temperature in Nicotiana tabacum . Biologia Plantarum 47, 85–90 (2003). https://doi.org/10.1023/A:1027337116408
Issue Date:
DOI: https://doi.org/10.1023/A:1027337116408