Misoon Park, Cornelia Krause, Matthias Karnahl, Ilka Reichardt, Farid El Kasmi, Ulrike Mayer, York-Dieter Stierhof, Ulrike Hiller, Georg Strompen, Martin Bayer, Marika Kientz, Masa H. Sato, Marc T. Nishimura, Jeffery L. Dangl, Anton A. Sanderfoot, Gerd Jürgens
- Membrane vesicles delivered to the cell-division plane fuse with one another to form the partitioning membrane during plant cytokinesis, starting in the cell center. In Arabidopsis, this requires SNARE complexes involving the cytokinesis-specific Qa-SNARE KNOLLE. However, cytokinesis still occurs in knolle mutant embryos, suggesting contributions from KNOLLE-independent SNARE complexes. Here we show that Qa-SNARE SYP132, having counterparts in lower plants, functionally overlaps with the flowering plant-specific KNOLLE. SYP132 mutation causes cytokinesis defects, knolle syp132 double mutants consist of only one or a few multi-nucleate cells, and SYP132 has the same SNARE partners as KNOLLE. SYP132 and KNOLLE also have non-overlapping functions in secretion and in cellularization of the embryo-nourishing endosperm resulting from double fertilization unique to flowering plants. Evolutionarily ancient non-specialized SNARE complexes originating in algae were thus amended by the appearance of cytokinesis-specific SNARE complexes, meetingMembrane vesicles delivered to the cell-division plane fuse with one another to form the partitioning membrane during plant cytokinesis, starting in the cell center. In Arabidopsis, this requires SNARE complexes involving the cytokinesis-specific Qa-SNARE KNOLLE. However, cytokinesis still occurs in knolle mutant embryos, suggesting contributions from KNOLLE-independent SNARE complexes. Here we show that Qa-SNARE SYP132, having counterparts in lower plants, functionally overlaps with the flowering plant-specific KNOLLE. SYP132 mutation causes cytokinesis defects, knolle syp132 double mutants consist of only one or a few multi-nucleate cells, and SYP132 has the same SNARE partners as KNOLLE. SYP132 and KNOLLE also have non-overlapping functions in secretion and in cellularization of the embryo-nourishing endosperm resulting from double fertilization unique to flowering plants. Evolutionarily ancient non-specialized SNARE complexes originating in algae were thus amended by the appearance of cytokinesis-specific SNARE complexes, meeting the high demand for membrane-fusion capacity during endosperm cellularization in angiosperms.…
MetadatenVerfasserangaben: | Misoon Park, Cornelia KrauseORCiD, Matthias Karnahl, Ilka Reichardt, Farid El Kasmi, Ulrike Mayer, York-Dieter Stierhof, Ulrike Hiller, Georg Strompen, Martin BayerORCiD, Marika Kientz, Masa H. SatoORCiD, Marc T. Nishimura, Jeffery L. Dangl, Anton A. Sanderfoot, Gerd Jürgens |
---|
DOI: | https://doi.org/10.1016/j.devcel.2017.12.027 |
---|
ISSN: | 1534-5807 |
---|
ISSN: | 1878-1551 |
---|
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/29396117 |
---|
Titel des übergeordneten Werks (Englisch): | Developmental cell |
---|
Verlag: | Cell Press |
---|
Verlagsort: | Cambridge |
---|
Publikationstyp: | Wissenschaftlicher Artikel |
---|
Sprache: | Englisch |
---|
Datum der Erstveröffentlichung: | 27.01.2018 |
---|
Erscheinungsjahr: | 2018 |
---|
Datum der Freischaltung: | 19.01.2022 |
---|
Band: | 44 |
---|
Ausgabe: | 4 |
---|
Seitenanzahl: | 16 |
---|
Erste Seite: | 500 |
---|
Letzte Seite: | + |
---|
Fördernde Institution: | Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG) [Ju 179/19-1, SFB 1101] |
---|
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie |
---|
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
---|
Peer Review: | Referiert |
---|
Publikationsweg: | Open Access / Bronze Open-Access |
---|