- Seminars - maillist.psb.ugent.be

Seminar Dr Jose Gutierrez-Marcos
by Delphine Verspeel 13 Jan '12

13 Jan '12

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. If you do not wish to receive this information anymore, please unsubscribe from future mailings at <https://maillist.psb.ugent.be/mailman/options/seminars> https://maillist.psb.ugent.be/mailman/options/seminars. cid:946540515@15122008-0D1C PSB cid:946540515@15122008-0D23 VIB - Department of Plant Systems Biology Technologiepark 927 B - 9052 Gent/Zwijnaarde Phone: +32 9 33 13 800 Fax: +32 9 33 13 809 Http://www.psb.vib-ugent.be

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Seminar Dr Eva Benkova 26/1
by Delphine Verspeel 13 Jan '12

13 Jan '12

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. If you do not wish to receive this information anymore, please unsubscribe from future mailings at <https://maillist.psb.ugent.be/mailman/options/seminars> https://maillist.psb.ugent.be/mailman/options/seminars. cid:946540515@15122008-0D1C PSB cid:946540515@15122008-0D23 VIB - Department of Plant Systems Biology Technologiepark 927 B - 9052 Gent/Zwijnaarde Phone: +32 9 33 13 800 Fax: +32 9 33 13 809 Http://www.psb.vib-ugent.be

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Upcoming seminars January 2012
by Delphine Verspeel 22 Dec '11

22 Dec '11

Dear All, Enclosed you can find our upcoming seminars for January. Kind regards, Delphine ____________________________________________ Delphine Verspeel Administrative Assistant VIB, Department of Plant Systems Biology Ghent University Technologiepark 927 9052 Gent Belgium Phone: +32/9/33.13.800 Fax: +32/33.13.809 Http://www.psb.ugent.be despe(a)psb.vib-ugent.be <mailto:nahau@psb.vib-ugent.be>

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PSB event reminder
by contact＠psb.vib-ugent.be 05 Dec '11

05 Dec '11

Calendar Name: seminars Scheduled for: Monday, December 5 2011, 11:00 - 12:30 Event text: Dr Moritz Nowack VIB, Dept. of Plant Systems Biology Ghent University Gent BELGIUM Details: "For neither can live while the other survives: Cell death during plant reproductive development" ABSTRACT Programmed cell death (PCD) comprises a variety of actively controlled, genetically encoded self-destruct mechanisms of the cell. While many forms of PCD have been recognized and meticulously dissected in animals, to date only little is known about the molecular control of PCD processes in plants. Nevertheless, plant PCD is an essential component of a plant�s reaction to its biotic and abiotic environment, and a central theme during plant development. Plant reproduction in particular involves many instances of developmentally controlled PCD, and tight spatial and temporal control of PCD in reproductive tissues is crucial for successful fertilization and seed set. We are investigating a selection of cell death events in /Arabidopsis thaliana/ to create knowledge about the molecular mechanisms that control the initiation and execution, as well as the prevention of cell death during plant reproductive development. Candidate PCD events include abortion of unfertilized ovules, central endosperm cell death during mid-seed development, and aleurone cell death during seed germination. To analyze these small, inaccessible, and intricately connected tissues, we developed and adapted several forward and reverse genetics strategies, making the Arabidopsis reproductive tissues accessible for cutting-edge �omics approaches. First results on candidate modulators as well as on the development of ovule and seed specific genetics, cell biological and genomics tools will be presented.

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PSB event reminder
by contact＠psb.vib-ugent.be 03 Dec '11

03 Dec '11

Calendar Name: seminars Scheduled for: Monday, December 5 2011, 11:00 - 12:30 Event text: Dr Moritz Nowack VIB, Dept. of Plant Systems Biology Ghent University Gent BELGIUM Details: "For neither can live while the other survives: Cell death during plant reproductive development" ABSTRACT Programmed cell death (PCD) comprises a variety of actively controlled, genetically encoded self-destruct mechanisms of the cell. While many forms of PCD have been recognized and meticulously dissected in animals, to date only little is known about the molecular control of PCD processes in plants. Nevertheless, plant PCD is an essential component of a plant�s reaction to its biotic and abiotic environment, and a central theme during plant development. Plant reproduction in particular involves many instances of developmentally controlled PCD, and tight spatial and temporal control of PCD in reproductive tissues is crucial for successful fertilization and seed set. We are investigating a selection of cell death events in /Arabidopsis thaliana/ to create knowledge about the molecular mechanisms that control the initiation and execution, as well as the prevention of cell death during plant reproductive development. Candidate PCD events include abortion of unfertilized ovules, central endosperm cell death during mid-seed development, and aleurone cell death during seed germination. To analyze these small, inaccessible, and intricately connected tissues, we developed and adapted several forward and reverse genetics strategies, making the Arabidopsis reproductive tissues accessible for cutting-edge �omics approaches. First results on candidate modulators as well as on the development of ovule and seed specific genetics, cell biological and genomics tools will be presented.

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PSB event reminder
by contact＠psb.vib-ugent.be 01 Dec '11

01 Dec '11

Calendar Name: seminars Scheduled for: Thursday, December 1 2011, 11:00 - 12:30 Event text: Assistant Prof Henrik J�nsson Computational Biology and Biological Physics Lund University SWEDEN & Sainsbury Laboratory University of Cambridge UNITED KINGDOM Details: �Computational Morphodynamics models of the shoot apical meristem� ABSTRACT The shoot apical meristem (SAM) is a stem cell niche acting as a main regulator of above-ground plant development. The maintenance of stem cells in the SAM, and the initiation of organs at the periphery are dependent on genetic regulation, hormone signaling, and mechanical anisotropies resulting in a complex dynamical system regulating organized differentiation and growth. Mathematical modeling has proven to be a useful tool to understand SAM development at a systems level, and the use of live microscopy has increased our knowledge of details in the protein dynamics associated with SAM development. The emerging field of Computational Morphodynamics aims at increasing the understanding of developmental systems by combining computational models whith microscopy data that provides four dimensional experimental templates for optimizing the models, and then predictions of the models are to be verified in experiments, in an iterative loop between experiments and computation. In this talk I will discuss models for stem cell regulation and primordia formation in the SAM. I will give examples of models where hormone signaling and transport are combined with mechanical models for generating phyllotactic patterns as well as models for stem cell regulation focusing on the CLAVATA WUSCHEL feedback. I will further discuss how we use model optimization to fit the models to templates where expression regions are marked in spatial regions relating to confocal images, and how this is used to make model predictions for the molecular networks.

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Seminar Dr Moritz Nowack 5/12
by Delphine Verspeel 29 Nov '11

29 Nov '11

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. If you do not wish to receive this information anymore, please unsubscribe from future mailings at <https://maillist.psb.ugent.be/mailman/options/seminars> https://maillist.psb.ugent.be/mailman/options/seminars. cid:946540515@15122008-0D1C PSB cid:946540515@15122008-0D23 VIB - Department of Plant Systems Biology Technologiepark 927 B - 9052 Gent/Zwijnaarde Phone: +32 9 33 13 800 Fax: +32 9 33 13 809 Http://www.psb.vib-ugent.be

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PSB event reminder
by contact＠psb.vib-ugent.be 29 Nov '11

29 Nov '11

Calendar Name: seminars Scheduled for: Thursday, December 1 2011, 11:00 - 12:30 Event text: Assistant Prof Henrik J�nsson Computational Biology and Biological Physics Lund University SWEDEN & Sainsbury Laboratory University of Cambridge UNITED KINGDOM Details: �Computational Morphodynamics models of the shoot apical meristem� ABSTRACT The shoot apical meristem (SAM) is a stem cell niche acting as a main regulator of above-ground plant development. The maintenance of stem cells in the SAM, and the initiation of organs at the periphery are dependent on genetic regulation, hormone signaling, and mechanical anisotropies resulting in a complex dynamical system regulating organized differentiation and growth. Mathematical modeling has proven to be a useful tool to understand SAM development at a systems level, and the use of live microscopy has increased our knowledge of details in the protein dynamics associated with SAM development. The emerging field of Computational Morphodynamics aims at increasing the understanding of developmental systems by combining computational models whith microscopy data that provides four dimensional experimental templates for optimizing the models, and then predictions of the models are to be verified in experiments, in an iterative loop between experiments and computation. In this talk I will discuss models for stem cell regulation and primordia formation in the SAM. I will give examples of models where hormone signaling and transport are combined with mechanical models for generating phyllotactic patterns as well as models for stem cell regulation focusing on the CLAVATA WUSCHEL feedback. I will further discuss how we use model optimization to fit the models to templates where expression regions are marked in spatial regions relating to confocal images, and how this is used to make model predictions for the molecular networks.

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PSB event reminder
by contact＠psb.vib-ugent.be 28 Nov '11

28 Nov '11

Calendar Name: seminars Scheduled for: Monday, November 28 2011, 11:00 - 12:30 Event text: Prof Natasha Raikhel Center for Plant Cell Biology & the Institute for Integrative Genome Biology Department of Botany and Plant Sciences University of California Riverside USA Details: �Chemical Biology:Towards a Systems View of the Endomembrane system� ABSTRACT Although it is known that proteins are delivered to and recycled from the plasma membrane (PM) via endosomes, the nature of the compartments and pathways responsible for cargo and vesicle sorting and cellular signaling is poorly understood. Such highly dynamic processes are not easily approached genetically. To define and dissect specific recycling pathways, rapid-acting chemical affecters of proteins involved in vesicle trafficking, especially through endosomes, would be invaluable. Thus, we identified chemicals affecting essential steps in PM/endosome trafficking by utilizing the intensely localized PM transport at the tips of germinating tobacco pollen tubes. We screened diverse chemical libraries for those that interfered with pollen germination and tip growth. We found that many also had effects in Arabidopsis roots for which there are several well-characterized marker proteins that cycle to and from the plasma membrane. Recent results from our screens will be discussed.

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PSB event reminder
by contact＠psb.vib-ugent.be 26 Nov '11

26 Nov '11

Calendar Name: seminars Scheduled for: Monday, November 28 2011, 11:00 - 12:30 Event text: Prof Natasha Raikhel Center for Plant Cell Biology & the Institute for Integrative Genome Biology Department of Botany and Plant Sciences University of California Riverside USA Details: �Chemical Biology:Towards a Systems View of the Endomembrane system� ABSTRACT Although it is known that proteins are delivered to and recycled from the plasma membrane (PM) via endosomes, the nature of the compartments and pathways responsible for cargo and vesicle sorting and cellular signaling is poorly understood. Such highly dynamic processes are not easily approached genetically. To define and dissect specific recycling pathways, rapid-acting chemical affecters of proteins involved in vesicle trafficking, especially through endosomes, would be invaluable. Thus, we identified chemicals affecting essential steps in PM/endosome trafficking by utilizing the intensely localized PM transport at the tips of germinating tobacco pollen tubes. We screened diverse chemical libraries for those that interfered with pollen germination and tip growth. We found that many also had effects in Arabidopsis roots for which there are several well-characterized marker proteins that cycle to and from the plasma membrane. Recent results from our screens will be discussed.

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