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The development of female gametophyte and antipodal embryo formation in Sedum fabaria

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Biologia Plantarum

Abstract

In Sedum fabaria, the ovule is anantropus, bitegmic and crassinucellate. The development of the nucellus conforms to the Sedum type. The development of the embryo sac is of the Allium type. The antipodal cells in unfertilized embryo sac occasionally divide and one of them forms four-celled structures resembling embryos and remaining once elongate in the form of haustoria. The entry of the pollen tube is porogamous. After division the primary endosperm nucleus forms two cells: the apical one develops into cellular endosperm according to the Acre type and the basal one acts as the endosperm haustorium of the Sempervivum type. The embryogeny corresponds to the Caryophyllad type.

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Authors and Affiliations

  1. Laboratory of General Botany, Adam Mickiewicz University, Al., 61-713, Poznań, Poland

    M.K. Wojciechowicz & M. Samardakiewicz

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  1. M.K. Wojciechowicz
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  2. M. Samardakiewicz
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Wojciechowicz, M., Samardakiewicz, M. The development of female gametophyte and antipodal embryo formation in Sedum fabaria. Biologia Plantarum 40, 193–202 (1997). https://doi.org/10.1023/A:1001008317890

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