caa a22 4500 445840307 CHVBK 20180317145342.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00709-010-0209-6 doi (NATIONALLICENCE)springer-10.1007/s00709-010-0209-6 The F-actin cytoskeleton in syncytia from non-clonal progenitor cells [Elektronische Daten] [Bartosz Płachno, Piotr Świątek, Małgorzata Kozieradzka-Kiszkurno] The actin cytoskeleton of plant syncytia (a multinucleate cell arising through fusion) is poorly known: to date, there have only been reports about F-actin organization in plant syncytia induced by parasitic nematodes. To broaden knowledge regarding this issue, we analyzed F-actin organization in special heterokaryotic Utricularia syncytia, which arise from maternal sporophytic tissues and endosperm haustoria. In contrast to plant syncytia induced by parasitic nematodes, the syncytia of Utricularia have an extensive F-actin network. Abundant F-actin cytoskeleton occurs both in the region where cell walls are digested and the protoplast of nutritive tissue cells fuse with the syncytium and also near a giant amoeboid in the shape nuclei in the central part of the syncytium. An explanation for the presence of an extensive F-actin network and especially F-actin bundles in the syncytia is probably that it is involved in the movement of nuclei and other organelles and also the transport of nutrients in these physiological activity organs which are necessary for the development of embryos in these unique carnivorous plants. We observed that in Utricularia nutritive tissue cells, actin forms a randomly arranged network of F-actin, and later in syncytium, two patterns of F-actin were observed, one characteristic for nutritive cells and second—actin bundles—characteristic for haustoria and suspensors, thus syncytia inherit their F-actin patterns from their progenitors. The Author(s), 2010 Cell fusion nationallicence Endosperm haustoria nationallicence Syncytium nationallicence Embryo nutrition nationallicence Lentibulariaceae nationallicence Płachno Bartosz Department of Plant Cytology and Embryology, Jagiellonian University, 52 Grodzka St., 31-044, Cracow, Poland aut Świątek Piotr Department of Animal Histology and Embryology, University of Silesia, 9 Bankowa St., 40-007, Katowice, Poland aut Kozieradzka-Kiszkurno Małgorzata Department of Plant Cytology and Embryology, University of Gdańsk, Kładki 24 St., 80-822, Gdańsk, Poland aut Protoplasma Springer Vienna 248/3(2011-07-01), 623-629 0033-183X 248:3<623 2011 248 709 https://doi.org/10.1007/s00709-010-0209-6 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00709-010-0209-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Płachno Bartosz Department of Plant Cytology and Embryology, Jagiellonian University, 52 Grodzka St., 31-044, Cracow, Poland aut NATIONALLICENCE 700 1- Świątek Piotr Department of Animal Histology and Embryology, University of Silesia, 9 Bankowa St., 40-007, Katowice, Poland aut NATIONALLICENCE 700 1- Kozieradzka-Kiszkurno Małgorzata Department of Plant Cytology and Embryology, University of Gdańsk, Kładki 24 St., 80-822, Gdańsk, Poland aut NATIONALLICENCE 773 0- Protoplasma Springer Vienna 248/3(2011-07-01), 623-629 0033-183X 248:3<623 2011 248 709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer