Abstract
Flowering of Chenopodium rubrum seedling plants was obtained in continuous light after application of fractions of a partially purified extract from leaves of flowering Maryland Mammoth tobacco (Nicotiana tabacum). The stage of flowal differentiation was dependent on the age of the Chenopodium plants used for the bioassay. Apices of plants treated with the extract at the age of four or seven days showed an advanced branching of the meristem or the beginning of formation of a terminal flower; treatment with the extract of plants 12 d old resulted in rapid formation of flower buds in all assay plants. Non-treated control plants kept in continuous light remained fully vegetative. The effects of the extract on flowering were associated with pronounced growth effects. Floral differentiation was preceeded by elongation of the shoot apex. Extension of all axial organs occurred, while growth of leaves, including leaf primordia, was inhibited. The pattern of growth after application of the flower-inducing substance(s) did not resemble the effects of the known phytohormones, but showed some similarities to growth changes resulting from photoperiodic induction of flowering.
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References
Chailakhyan, M. Kh. (1958) Hormonale Faktoren des Pflanzenblühens. Biol. Zbl. 77, 641–662
Chailakhyan, M.Kh., Grigoreva, N.J., Lozhnikova, V.N. (1977) The effect of leaf extracts from flowering tobacco plants on flowering of seedlings and plants of Chenopodium rubrum L. (In Russ.). Dokl. Akad. Nauk SSSR 236, 773–776
Chailakhyan, M.Kh., Grigoréva, N.J., Loznnikova, V.N. (1983) A method for extraction and purification of flower hormones from plants of short-day species. (Sov. Patent SU 1038343) (In Russ.) USSR State Committee on Matters of Inventions and Discoveries. Abstr. In Biull. Izobretenii-Otkrytiya i Izobreteniya 32, 87, 30 Aug 83
Hodson, H.E., Hamner, K.C. (1970) Foral inducing extract from Xanthium. Science 167, 384–385
Lincoln, R.G., Cunningham, A., Hamner, K.C. (1964) Evidence for a florigenic acid. Nature 202, 559–561
Lozhnikova, V.N., Krekule, J., Seidlová, F., Bavrina, T.V., Chailakhyan, M.Kh. (1981) Promotive effect of abscisic acid in flowering of Chenopodium rubrum L. as the result of decreasing of apical dominance. Biol. Plant. (Prague) 25, 36–40
Opatrná, J., Ullmann, J., Pavlová, L., Krekule, J. (1980) Changes in organ growth of Chenopodium rubrum due to suboptimal and multiple photoperiodic cycles with and without flowering effect. Biol. Plant. (Prague) 22, 454–464
Seidlová, F. (1985) Growth regulators in changing apical growth at transition to flowering. Biol. Plant. (Prague) 27, 350–359
Seidlová, F., Sádliková, H. (1983) Floral transition as a sequence of growth changes in different components of the shoot apical meristem of Chenopodium rubrum. Biol. Plant. (Prague) 25, 50–62
Ullmann, J., Seidlová, F., Krekule, J., Pavlova, L. (1985a) Chenopodium rubrum as a model plant for testing the flowering effects of PGRs. Biol. Plant. (Prague) 27, 367–372
Ullmann, J., Krekule, J., Pavlová, L., Josefusová, Z., Opatrná, J., Seidlová, F., Součková, D. (1985b) Effect of two- or three-component PGR solution on the flowering of short-day plant Chenopodium rubrum. Biol. Plant. (Prague) 27, 398–401
Zeevaart, J.A.D. (1979) Perception, nature and complexité du signal transmis. In: La physiologie de la floraison (Coll. Int. du Centre National de la Recherche Scientifique N0 285), pp. 59–90. Editions du CNRS, Paris
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Chailakhyan, M.K., Lozhnikova, V., Seidlova, F. et al. Floral and growth responses in Chenopodium rubrum L. to an extract from flowering Nicotiana tabacum L.. Planta 178, 143–146 (1989). https://doi.org/10.1007/BF00393188
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DOI: https://doi.org/10.1007/BF00393188