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Comparative analysis of the spatiotemporal distribution of endogenous hormones in the ovaries of wheat and dandelion in the period of ovule activity

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Abstract

New data are reported on the spatiotemporal distribution of free and bound forms of phytohormones (cytokinins, auxins, abscizins) in the ovaries of the amphimictic species Triticum aestivum L. and the apomictic species Taraxacum officinale Web. The data are attributed to four domains of the ovary and three intervals composing the period of ovule activity (from the moment of the ovule at relative rest to the moment of the ovule at the first division). The data were obtained by modifications of the ELISA method. The modifications were elaborated for each phytohormone. Comparative analysis of the data implies that basic events of the reproduction process in the ovary in the period of the ovule activity are under the endogenous hormonal control system. The distributions of free and bound forms of phytohormones in the ovaries of two species show both common regularities, probably characteristic of amphimicts and apomicts, and special features. The latter may be related to the specificity of the reproduction type.

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Authors and Affiliations

  1. Department of Plant Physiology, Moscow State University, Moscow, 119991, Russia

    M. A. Gusakovskaya, A. N. Blintsov & A. F. Lebedeva

Authors
  1. M. A. Gusakovskaya
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  2. A. N. Blintsov
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  3. A. F. Lebedeva
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Correspondence to M. A. Gusakovskaya.

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Original Russian Text © M.A. Gusakovskaya, A.N. Blintsov, A.F. Lebedeva, 2008, published in Vestnik Moskovskogo Universiteta. Biologiya, 2008, No. 3, pp. 12–20.

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Gusakovskaya, M.A., Blintsov, A.N. & Lebedeva, A.F. Comparative analysis of the spatiotemporal distribution of endogenous hormones in the ovaries of wheat and dandelion in the period of ovule activity. Moscow Univ. Biol.Sci. Bull. 63, 99–108 (2008). https://doi.org/10.3103/S0096392508030024

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