September 2022 - Seminars - maillist.psb.ugent.be

You are invited to attend “Auxin signaling: more than we could ever imagine” ON October 14, 2022
by Delphine Verspeel 21 Dec '22

21 Dec '22

You are receiving this e-mail because you subscribed to our seminars announcements and reminders service at [ https://maillist.psb.ugent.be/mailman/listinfo/seminars | https://maillist.psb.ugent.be/mailman/listinfo/seminars ] . '' Auxin signaling: more than we could ever imagine '' Prof Jiri Friml Institute of Science and Technology Austria (ISTA) Klosterneuburg AUSTRIA Friday, October 14, 2022 14:00 The plant hormone auxin is a versatile intercellular signal influencing virtually all aspects of plant life. It has a unique ability to be directionally transported within tissues forming local auxin maxima or gradients that are central to many developmental processes mediated by auxin. One of the key roles of auxin is adaptation of plant growth to gravity, where shoots bend up and roots down. This paradox is based on opposite responses of these organs to the phytohormone auxin, which promotes cell expansion in shoots, while inhibiting it in roots via an unclear signalling pathway and yet unknown downstream cellular mechanism. The well-established canonical auxin signalling involving the TIR1/AFB auxin receptors, Aux/IAA repressors and ARF transcription factors acts in nucleus and mediates gene transcription. However, auxin also triggers cellular responses within seconds or minutes, too fast to rely on transcription. Part of the rapid responses is mediated by the non-transcriptional branch of the TIR1/AFB signalling, but others involve a yet completely unknown mechanism. Here Prof Jiri Friml will present new and surprising insights into the mechanism of auxin signalling including an ultrafast auxin-triggered protein phosphorylation response and previously unsuspected aspects of TIR1/AFB auxin perception and downstream signalling. Keywords : Auxin, Arabidopsis, root gravitropism, TIR1/AFB signalling Acknowledgements : Prof Jiri Friml gratefully acknowledges all present and past members of the Friml group and their excellent collaborators. Jozef Schell seminar room Technologiepark 71 - 9052 Invited by Prof Dirk Inzé and Prof Daniël Van Damme If you do not wish to receive this information anymore, please unsubscribe from future mailings at [ https://maillist.psb.ugent.be/mailman/listinfo/seminars | https://maillist.psb.ugent.be/mailman/listinfo/seminars ] Genome editing, cutting-edge technology for a sustainable agriculture VIB-UGent Center for Plant Systems Biology Ghent University Technologiepark-Zwijnaarde 71 9052 Ghent-Belgium Phone: +32(0)9 331 38 00 [ http://www.psb.vib-ugent.be/ | https://www.psb.ugent.be/ ]

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Upcoming seminars February
by Delphine Verspeel 30 Sep '22

30 Sep '22

Dear All, Enclosed you can find our upcoming seminars for February. Kind regards, Delphine Delphine Verspeel - Administrative assistant Administrative Support VIB-UGent Center for Plant Systems Biology Ghent University Technologiepark-Zwijnaarde 71 - 9052 Ghent - Belgium Tel. +32(0)9 331 38 00 [ http://www.psb.ugent.be/ | www.psb.ugent.be ] Genome editing, cutting-edge technology for a sustainable agriculture

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You are invited to attend “MicroRNAs in plants: biogenesis and roles in plant growth and development” ON September 26, 2022
by Delphine Verspeel 29 Sep '22

29 Sep '22

You are receiving this e-mail because you subscribed to our seminars announcements and reminders service at [ https://maillist.psb.ugent.be/mailman/listinfo/seminars | https://maillist.psb.ugent.be/mailman/listinfo/seminars ] . '' MicroRNAs in plants: biogenesis and roles in plant growth and development '' Prof Javier Palatnik Institute of Molecular and Cellular Biology of Rosario (IBR ) ARGENTINA Monday, September 26, 2022 11:00 MicroRNAs are essential endogenous regulators of gene expression in plants. They are generated from foldback precursors by the microprocessor, whose main component is DICER-LIKE1. The mature miRNAs of ~21 nt length are incorporated into ARGONAUTE complexes, which they then guide to target mRNAs that are subsequently cleaved or translationally arrested. In contrast to their stereotypical animal counterparts, plant microRNA precursors are very heterogeneous in size and shape. We have discovered that plant microRNAs can be generated by several different modes, explaining the variability of precursors that can generate these small RNAs. Many evolutionarily conserved plant microRNAs regulate transcription factors involved in plant development. MicroRNA miR396 regulates GROWTH-REGUALTING FACTORS (GRFs), which are plant-specific transcription factors. The microRNA miR396-GRF module has been implicated in the promotion of organ growth and as a regulator of crop yield. We have been studying the integration of the miR396 regulatory network in the developmental program of the plant. Interestingly, while miR396 regulates cell proliferation in leaves, in the root apical meristem it aids to control and maintain the stem cell population. A general view of the microRNA biogenesis pathway, as well as the roles of the miR396 regulatory network will be presented. Jozef Schell seminar room Technologiepark 71 - 9052 Invited by Prof Dirk Inzé and Prof Lieven De Veylder If you do not wish to receive this information anymore, please unsubscribe from future mailings at [ https://maillist.psb.ugent.be/mailman/listinfo/seminars | https://maillist.psb.ugent.be/mailman/listinfo/seminars ] Genome editing, cutting-edge technology for a sustainable agriculture VIB-UGent Center for Plant Systems Biology Ghent University Technologiepark-Zwijnaarde 71 9052 Ghent-Belgium Phone: +32(0)9 331 38 00 [ http://www.psb.vib-ugent.be/ | https://www.psb.ugent.be/ ]

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