- Seminars - maillist.psb.ugent.be

You are invited to attend “Drivers of diversity structuration in black poplar (Populus nigra L.): What molecular markers tell us?” ON December 21, 2023
by Delphine Verspeel 20 Dec '23

20 Dec '23

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 ] . '' Drivers of diversity structuration in black poplar (Populus nigra L.): What molecular markers tell us? '' Dr Véronique Jorge UMR BioForA INRAE ONF FRANCE Thursday, December 21, 2023 11:00 Black poplar (Populus nigra L.) is among the tree species having the largest natural distribution in Europe, from West Great Britain to West Asia, and from the foot of the Ural Mountains to the North of Africa. Thus, this species is potentially subjected to a wide variation of climatic conditions. Previous studies on variability of traits in this species showed structure and different distribution patterns depending on the trait, demonstrating potential local adaptation. In the last decade, we have developed molecular tools to study the factors shaping the diversity of the species. Today, these tools allow us to detect patterns of selection along the genome, to identify polymorphism involved in adaptative traits, to model demographic history of the species, and to evaluate how gene flow impact structure of populations. These molecular tools and results constitute the toolbox for breeding and conservation programs of black poplar. Jozef Schell seminar room Technologiepark 71 - 9052 Invited by Prof Yves Van de Peer 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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CANCELLED: Seminar Prof Mihael Hothron on Thursday, December 14
by Delphine Verspeel 12 Dec '23

12 Dec '23

Dear all, Due to illness, Prof Michael Hothorn is not able to visit us this week and give a seminar. We will look for a new date. Our apologies for this inconvenience. Kind regards, Delphine Van: "Delphine Verspeel" <delphine.verspeel(a)psb.vib-ugent.be> Aan: "meetings" <meetings(a)psb.vib-ugent.be> Verzonden: Donderdag 26 oktober 2023 13:59:56 Onderwerp: You are invited to attend “Control of plant phosphate homeostasis by inositol pyrophosphate nutrient messengers” ON December 14, 2023 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 ] . '' Control of plant phosphate homeostasis by inositol pyrophosphate nutrient messengers '' Prof Michael Hothorn Department of Plant Sciences Faculty of Science Science III University of Geneva SWITZERLAND Thursday, December 14, 2023 11:00 Phosphorus forms an essential structural component of membranes and nucleic acids, represents an important signaling molecule and the energy currency of the cell. It is taken up by plants in the form of inorganic phosphate (Pi). How eukaryotic cells ‘measure’ intracellular Pi levels and respond to changes in Pi availability remains to be uncovered at the mechanistic level. We have previously reported that eukaryotic SPX domains are cellular receptors for Pi-rich inositol pyrophosphate (PP-InsP) nutrient messengers. In Pi sufficient growth conditions, PP-InsP levels are high and enable the binding of the nutrient messenger to its SPX receptor. In plants, the activated receptor can in turn bind a family of phosphate starvation responsive transcription factors rendering them unable to bind DNA. Under phosphate starvation PP-InsP levels drop, the receptor – transcription factor complex dissociates and the released transcription factor can activate Pi-starvation responsive gene expression. I will present our current mechanistic understanding of this nutrient signaling pathway as well as a quantitative biochemical, structural and physiological characterization of PP-InsP biosynthesis and catabolism in the model plants Arabidopsis and Marchantia. Jozef Schell seminar room Technologiepark 71 - 9052 Invited by Prof Dirk Inzé and Prof Jenny Russinova 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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You are invited to attend “Cross-kingdom RNA trafficking between plants and fungal pathogens and innovative eco-friendly disease control solutions” ON November 16, 2023
by Delphine Verspeel 29 Nov '23

29 Nov '23

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 ] . '' Cross-kingdom RNA trafficking between plants and fungal pathogens and innovative eco-friendly disease control solutions '' Prof Hailing Jin Department of Microbiology and Plant Pathology Center for Plant Cell Biology Institute for Integrative Genome Biology University of California Riverside USA Thursday, November 16, 2023 11:00 Small RNAs (sRNAs) are short non-coding RNAs that mediate gene silencing in a sequence-specific manner. We discovered that some sRNAs from eukaryotic pathogens, such as Botrytis cinerea, can be transported into host plant cells and suppress host immunity genes for successful infection (Weiberg et al., Science 2013). We further demonstrated that plants can also send sRNAs into pathogens, mainly using extracellular vesicles, mostly exosomes, to silence fungal virulence genes as part of its immune responses (Cai et al., Science 2018). We identified a group of RNA binding proteins that contribute to the selective sRNA loading into extracellular vesicles (He et al., Nature Plants, 2021). Furthermore, we recently demonstrate that B. cinerea also utilizes extracellular vesicles to secrete sRNAs, which are then enter plant cells through clathrin-mediated endocytosis (He et al., Nature Communications, 2023). Thus, extracellular vesicles play an important role in cross-kingdom RNA trafficking between plants and fungal pathogens. In addition, we discovered that environmental RNAi is present in many fungal pathogens, which can take up RNAs from the environment efficiently (Wang et al,, Nature Plants, 2016; Qiao et al., Plant Biotechnology Journal 2021). Applying small RNAs or double-stranded RNAs that target fungal virulence-related genes on plants can effectively inhibit fungal diseases. Innovative pathogen gene-targeting RNA-based antifungal solutions using nanotechnologies represent a new generation of fungicides that are durable and eco-friendly (Qiao et al., Plant Biotechnology Journal, 2023; Niño-Sánchez et al., Journal of Integrative Plant Biology 2023). Jozef Schell seminar room Technologiepark 71 - 9052 Invited by Prof Dirk Inzé and Prof Jenny Russinova 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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Seminar Prof Malcolm Bennett TOMORROW at 11 am in the Schell room
by Delphine Verspeel 25 Oct '23

25 Oct '23

REMINDER Van: "Delphine Verspeel" <delphine.verspeel(a)psb.vib-ugent.be> Aan: "meetings" <meetings(a)psb.vib-ugent.be> Verzonden: Dinsdag 12 september 2023 17:00:02 Onderwerp: You are invited to attend “Uncovering how plant roots use hormones as proxies to sense and respond to soil stresses” ON October 26, 2023 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 ] . '' Uncovering how plant roots use hormones as proxies to sense and respond to soil stresses '' Prof Malcolm Bennett Plant & Crop Sciences University of Nottingham UNITED KINGDOM Thursday, October 26, 2023 11:00 Plants exhibit a remarkable ability to modify their growth and development in response to environmental signals and stresses. This ability is particularly striking during root development where plants have to forage in highly heterogeneous environments. I will describe how plant hormones enable roots to sense and/or respond to environmental signals. Examples include discovering how plants sense availability of moisture in soil by linking intercellular water fluxes with movement of hormones like auxin and ABA, triggering changes in root branching designed to maximise capture of soil resources (Orosa et al, 2018, Science; Mehra et al, 2022, Science). Plant roots also employ volatile signals like ethylene to sense changes in soil physical properties like compaction stress using a novel gas diffusion based mechanism (Pandey et al, 2021, Science). I will conclude by describing how mechanistic insights about hormone-regulated root plasticity is helping design stress resilient crops. Jozef Schell seminar room Technologiepark 71 - 9052 Invited by Prof Dirk Inzé, Prof Tom Beeckman and Prof Bert De Rybel 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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Seminar Dr Yasin Dagdas TOMORROW at 11 am in the Schell room
by Delphine Verspeel 11 Oct '23

11 Oct '23

REMINDER Van: "Delphine Verspeel" <delphine.verspeel(a)psb.vib-ugent.be> Aan: "meetings" <meetings(a)psb.vib-ugent.be> Verzonden: Maandag 4 september 2023 17:24:25 Onderwerp: You are invited to attend “Leveraging evolutionary diversity to discover new autophagy mechanisms in plants and humans” ON October 12, 2023 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 ] . '' Leveraging evolutionary diversity to discover new autophagy mechanisms in plants and humans '' Dr Yasin Dagdas Gregor Mendel Institute Vienna Biocenter AUSTRIA Thursday, October 12, 2023 11:00 Selective autophagy has emerged as a crucial quality control pathway that enables cells to adapt to changing environmental conditions and intrinsic demands. Through the recruitment of damaged and unwanted cellular components into de novo formed double membrane vesicles, known as autophagosomes, and their subsequent degradation in lytic compartments, selective autophagy facilitates cellular reprogramming. The recruitment of specific cargo is mediated by cargo receptors that bridge the cargo with the growing autophagosome. Despite recent advances that underscore the critical role of selective autophagy in stress tolerance, our understanding of the full range of cargo receptors involved in these processes remains incomplete. In this presentation, I will describe our recent findings, where we leveraged evolutionary diversity to discover new cargo receptors in plants. Our comparative studies in plants have led us to identify a cross-kingdom conserved selective autophagy process that maintains endoplasmic reticulum homeostasis in humans. Through this work, we hope to establish autophagy as a template for addressing a fundamental question in evolutionary cell biology: how do cellular innovations arise in different branches of life? 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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You are invited to attend “ATP production in mitochondria through respiration and its use for protein homeostasis in plants” ON October 30, 2023 in ROOM L5 at CMB
by Delphine Verspeel 04 Oct '23

04 Oct '23

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 ] . '' ATP production in mitochondria through respiration and its use for protein homeostasis in plants '' Prof Harvey Millar ARC Centre of Excellence in Plant Energy Biology The University of Western Australia Perth AUSTRALIA Monday, October 30, 2023 15:00 Cellular respiration is a foundational biochemical process linking the oxidative decarboxylation of organic acids to the generation of ATP for use in biosynthesis and cellular maintenance. I will outline recent work we have been conducting to understand the rate of this process. This includes determining the transport routes for primary organic acid substrates that plant mitochondria use to generate ATP and also new insights into the efficiency of ATP generation inside plant mitochondria through the electron transport chain. I will then outline a systematic means using proteomics technology to measure the investment of this ATP through protein synthesis to build the steady-state (but constantly turning over) metabolic machinery of the plant cell. Using progressive labelling approaches with stable isotope we have studied changes in energy use patterns during high light and during periods of darkness in Arabidopsis through varying rates of protein synthesis and protein degradation of specific enzymes and biochemical pathways. I will outline how we are using these insights in research focused on crop plants in the field, the emerging requirements for vertical farming and plant-based protein production, right through to new opportunities for plants as critical systems in provisioning future space exploration. Collectively these approaches aim to return us from the current re-occupation in molecular plant science with amounts of components to consider more fully the rates of processes that drive growth and plant productivity. Le XH, Lee CP, Millar AH (2021) The mitochondrial pyruvate carrier (MPC) complex is one of three pyruvate-supplying pathways that sustain Arabidopsis respiratory metabolism. Plant Cell 33:2776-2793. Le XH, Lee CP, Monachello D, Millar AH (2022) Metabolic evidence for distinct pyruvate pools inside plant mitochondria. Nature Plants 8:694-705 Duncan O, Millar AH. (2022) Day and night isotope labelling reveal metabolic pathway specific regulation of protein synthesis rates in Arabidopsis. Plant J. 109:745-763. Li L, Duncan O, Ganguly DR, Lee CP, Crisp PA, Wijerathna-Yapa A, Salih K, Trösch J, Pogson BJ, Millar AH. (2022) Enzymes degraded under high light maintain proteostasis by transcriptional regulation in Arabidopsis. Proc Natl Acad Sci U S A. 119(20):e2121362119. Room L5 Center for Medical Biotechnology Technologiepark 75 Invited by Prof Dirk Inzé, Prof Frank Van Breusegem, Prof Ive De Smet, Prof Geert De Jaeger and Prof Inge De Clercq 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 VIB-UGent Center for Plant Systems Biology
by Delphine Verspeel 03 Oct '23

03 Oct '23

Dear all, Enclosed you can find an overview of the forthcoming seminars organized by the VIB-UGent Center for Plant Systems Biology. 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 “Mechanisms controlling polar localization and boron-dependent degradation of boric acid/borate transport proteins” ON September 28, 2023
by Delphine Verspeel 27 Sep '23

27 Sep '23

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 ] . '' Mechanisms controlling polar localization and boron-dependent degradation of boric acid/borate transport proteins '' Prof Junpei Takano Laboratory of Plant Nutrition Graduate School of Agriculture Osaka Metropolitan University JAPAN Thursday, September 28, 2023 11:00 Boron (B) deficiency and toxicity are agricultural problems impeding crop production worldwide. Due to relatively high solubility of B as boric acid (B[OH]3), B deficiency often occurs in high rain fall areas, while B toxicity occurs in arid and semi-arid areas. Boron is essential for plant growth and survival due to its function in cross-liking pectin at the rhamnogalacturonan II (RG-II). Under low-B conditions, a boric acid channel NIP5;1 and a borate [B(OH)4–] exporter BOR1 play key roles in B uptake and translocation in Arabidopsis thaliana. In root cells including epidermal and endodermal cells, NIP5;1 and BOR1 are localized to the plasma membrane in polar manners toward the soil- and stele-side, to support directional transport of B toward the root stele. The polar localization of NIP5;1 and BOR1 is mediated not by a static retention mechanism, but by constitutive endocytosis and exocytosis dependent on phosphorylation in N/C-terminal regions. It is likely that different modes of transcytosis are operating for the polar localization toward the soil- and stele-side cell domains. When the B concentration in soil fluctuates, plants have to control activities of these transport proteins. Upon sufficient-B supply, BOR1 undergoes polyubiquitination and is transported from the plasma membrane to the vacuole for degradation, to avoid overaccumulation of B. Our forward genetic screen identified that amino acid residues located in vicinity of the substrate-binding pocket of BOR1 are essential for the vacuolar sorting. BOR1 variants that lack B-transport activity showed a significant reduction of polyubiquitination and subsequent vacuolar sorting. Our study on BOR1 and other studies on yeast amino acid transporters suggest that ubiquitination of these transporters relies on its conformational transition during the transport cycle. We will present our current attempts to prove the transport-coupled ubiquitination model for auto-regulation of transporters. Reference Yoshinari, A.; Hosokawa, T.; Beier, M. P.; Oshima, K.; Ogino, Y.; Hori, C.; Takasuka, T. E.; Fukao, Y.; Fujiwara, T.; Takano, J. Transport-Coupled Ubiquitination of the Borate Transporter BOR1 for Its Boron-Dependent Degradation. Plant Cell 2021, 33 (2), 420–438. https://doi.org/10.1093/PLCELL/KOAA020. Jozef Schell seminar room Technologiepark 71 - 9052 Invited by Prof Dirk Inzé, Prof Daniël Van Damme & Prof Jenny Russinova 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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You are invited to attend “How we can use knowledge on Arabidopsis meristems to understand grass shoot architecture” ON June 21, 2023
by Delphine Verspeel 21 Jun '23

21 Jun '23

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 ] . '' How we can use knowledge on Arabidopsis meristems to understand grass shoot architecture '' Prof Rüdiger Simon Institute of Developmental Genetics Heinrich Heine University Düsseldorf GERMANY Wednesday, June 21, 2023 11:00 Plant growth and development strongly depends on the activities of meristems, which can generate flowers, leaves or new branches. The number, size, position and identity of meristems ultimately determines how many seeds a plant can generate, or the size of its fruits. The last decades have allowed immense progress in our understanding of basic meristem activities, mostly with lab model plants such as Arabidopsis. Grasses like barley are important crop plants, and we are now starting to employ knowledge on meristems to investigate how barley architecture is determined. Jozef Schell seminar room Technologiepark 71 - 9052 Invited by Prof Dirk Inzé, Prof Daniël Van Damme & Prof Jenny Russinova 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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You are invited to attend “Auxin dynamics during developmental programmed cell death events in the Arabidopsis root” ON July 4, 2023
by Delphine Verspeel 06 Jun '23

06 Jun '23

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 dynamics during developmental programmed cell death events in the Arabidopsis root '' Prof Riccardo Di Mambro Department of Biology University of Pisa ITALY Tuesday, July 4, 2023 14:00 M. SHTIN 1,2 , D. SCINTU 1,2 , N. SVOLACCHIA 1,2 , P. COSTANTINO 2 , S. SABATINI 2 , R. DELLO IOIO 2 , RICCARDO DI MAMBRO 1 1 Department of Biology, University of Pisa, Pisa, Italy 2 Department of Biology and Biotechnology “Charles Darwin”, University Sapienza, Rome, Italy Programmed Cell Death (PCD) represents a key process for directing organ development. In Arabidopsis, characteristic PCD events are crucial for the correct development of the lateral root cap, the most external tissue of the root. The lateral root cap translates the environmental stimuli into internal cellular response, thus leading to the regulation of the growth and architecture of the entire organ. In order to ensure tissue proper development and functions, the uppermost cells of this tissue undergoes a characteristic PCD event. Recent evidences hinted on a correlation between the activity of the hormone auxin and PCD events, including those occurring in the lateral root cap. Exploiting a live imaging approach combined with cell type specific gene editing, we show that auxin transport dynamics govern the timing of the uppermost lateral root cap cells PCD occurrence. We thus suggest the existence of a specific molecular circuit that confers positional cues to lateral root cap cells to coordinate cellular turnover and whole organ development. Jozef Schell seminar room Technologiepark 71 - 9052 Invited by Prof Dirk Inzé and Prof Tom Beeckman 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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