caa a22 4500 445840773 CHVBK 20180317145343.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s00709-010-0185-x doi (NATIONALLICENCE)springer-10.1007/s00709-010-0185-x Płachno Bartosz Department of Plant Cytology and Embryology, Jagiellonian University, 52 Grodzka st., 31-044, Cracow, Poland aut Female germ unit in Genlisea and Utricularia , with remarks about the evolution of the extra-ovular female gametophyte in members of Lentibulariaceae [Elektronische Daten] [Bartosz Płachno] Lentibulariaceae is the largest family among carnivorous plants which displays not only an unusual morphology and anatomy but also the special evolution of its embryological characteristics. It has previously been reported by authors that Utricularia species lack a filiform apparatus in the synergids. The main purposes of this study were to determine whether a filiform apparatus occurs in the synergids of Utricularia and its sister genus Genlisea, and to compare the female germ unit in these genera. The present studies clearly show that synergids in both genera possess a filiform apparatus; however, it seems that Utricularia quelchii synergids have a simpler structure compared to Genlisea aurea and other typical angiosperms. The synergids are located at the terminal position in the embryo sacs of Pinguicula, Genlisea and were probably also located in that position in common Utricularia ancestor. This ancestral characteristic still occurs in some species from the Bivalvaria subgenus. An embryo sac, which grows out beyond the limit of the integument and has contact with nutritive tissue, appeared independently in different Utricularia lineages and as a consequence of this, the egg apparatus changes position from apical to lateral. The Author(s), 2010 Egg apparatus nationallicence Synergids nationallicence Central cell nationallicence Ovule nationallicence Ultrastructure nationallicence Carnivorous plants nationallicence Lentibulariaceae nationallicence Protoplasma Springer Vienna 248/2(2011-04-01), 391-404 0033-183X 248:2<391 2011 248 709 https://doi.org/10.1007/s00709-010-0185-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00709-010-0185-x text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Płachno Bartosz Department of Plant Cytology and Embryology, Jagiellonian University, 52 Grodzka st., 31-044, Cracow, Poland aut NATIONALLICENCE 773 0- Protoplasma Springer Vienna 248/2(2011-04-01), 391-404 0033-183X 248:2<391 2011 248 709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer