January 2010 - Seminars - maillist.psb.ugent.be

PSB event reminder
by contact＠psb.vib-ugent.be 28 Jan '10

28 Jan '10

Calendar Name: seminars Scheduled for: Thursday, January 28 2010, 11:00 - 12:30 Event text: Dr Lars �stergaard John Innes Centre Norwich UK Details: "Cell fate specification guided by hormonal and genetic interplay during fruit development" ABSTRACT Mobile signals provided by hormones and morphogens are essential to organise multicellular structures. Despite detailed knowledge on the dynamics of specific hormones in specific cellular environments, not much is known about the interactions between hormonal and genetic events that lead to proper organ formation. The Arabidopsis fruit provides an outstanding model system to study organ patterning and cell differentiation with dramatically different cell types located immediately next to each other. Work on Arabidopsis fruit development has been impressively successful in identifying key genetic regulators; however, the data clearly indicate that in order to get an integrated view of fruit patterning, it is necessary to understand the role of hormones in the process. We use Arabidopsis and Brassica fruits as models to study how genetic and hormonal activities interact to form a complex organ. Results will be presented on the importance of both local hormone biosynthesis and distribution, on communication between tissues to coordinate growth and how these processes are controlled. A high-definition map of hormone distribution during fruit development is currently under construction. This map will be used to construct a mathematical model of fruit development, which is likely to provide exciting new insight into how hormones control organ growth and development.

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PSB event reminder
by contact＠psb.vib-ugent.be 26 Jan '10

26 Jan '10

Calendar Name: seminars Scheduled for: Thursday, January 28 2010, 11:00 - 12:30 Event text: Dr Lars �stergaard John Innes Centre Norwich UK Details: "Cell fate specification guided by hormonal and genetic interplay during fruit development" ABSTRACT Mobile signals provided by hormones and morphogens are essential to organise multicellular structures. Despite detailed knowledge on the dynamics of specific hormones in specific cellular environments, not much is known about the interactions between hormonal and genetic events that lead to proper organ formation. The Arabidopsis fruit provides an outstanding model system to study organ patterning and cell differentiation with dramatically different cell types located immediately next to each other. Work on Arabidopsis fruit development has been impressively successful in identifying key genetic regulators; however, the data clearly indicate that in order to get an integrated view of fruit patterning, it is necessary to understand the role of hormones in the process. We use Arabidopsis and Brassica fruits as models to study how genetic and hormonal activities interact to form a complex organ. Results will be presented on the importance of both local hormone biosynthesis and distribution, on communication between tissues to coordinate growth and how these processes are controlled. A high-definition map of hormone distribution during fruit development is currently under construction. This map will be used to construct a mathematical model of fruit development, which is likely to provide exciting new insight into how hormones control organ growth and development.

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PSB event reminder
by contact＠psb.vib-ugent.be 18 Jan '10

18 Jan '10

Calendar Name: seminars Scheduled for: Monday, January 18 2010, 11:00 - 12:30 Event text: Prof Filip Rolland Laboratory of Functional Biology Plant Metabolic Signaling group Institute of Botany and Microbiology, K.U.Leuven BELGIUM Details: "Sensing and signaling plant carbon and energy status" ABSTRACT Plants are constantly challenged by changes in their environment that affect photosynthesis, respiration and carbon allocation and by a changing tissue- and developmental stage-dependent physiology during development. Therefore, they have evolved mechanisms to constantly monitor their metabolic status and adjust their growth accordingly. The KIN10/11 SnRK1 protein kinases, for example, function as conserved �fuel gauges� that trigger extensive metabolic reprogramming upon carbon and energy depletion, in part through a network of bZIP transcription factors. SnRK1 activity is controlled by the micromolar levels of trehalose-6-P (T6P), the metabolic intermediate of trehalose metabolism. While Arabidopsis does not accumulate this disaccharide, its genome encodes a large family of T6P synthase (TPS)-like and T6P phosphatase (TPP) proteins. Yeast functional complementation studies, however, suggest that most of the TPS-like proteins are catalytically inactive and expression studies reveal extensive regulation at the transcriptional level. Therefore, they might function as metabolic sensors of plant carbon status.

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PSB event reminder
by contact＠psb.vib-ugent.be 16 Jan '10

16 Jan '10

Calendar Name: seminars Scheduled for: Monday, January 18 2010, 11:00 - 12:30 Event text: Prof Filip Rolland Laboratory of Functional Biology Plant Metabolic Signaling group Institute of Botany and Microbiology, K.U.Leuven BELGIUM Details: "Sensing and signaling plant carbon and energy status" ABSTRACT Plants are constantly challenged by changes in their environment that affect photosynthesis, respiration and carbon allocation and by a changing tissue- and developmental stage-dependent physiology during development. Therefore, they have evolved mechanisms to constantly monitor their metabolic status and adjust their growth accordingly. The KIN10/11 SnRK1 protein kinases, for example, function as conserved �fuel gauges� that trigger extensive metabolic reprogramming upon carbon and energy depletion, in part through a network of bZIP transcription factors. SnRK1 activity is controlled by the micromolar levels of trehalose-6-P (T6P), the metabolic intermediate of trehalose metabolism. While Arabidopsis does not accumulate this disaccharide, its genome encodes a large family of T6P synthase (TPS)-like and T6P phosphatase (TPP) proteins. Yeast functional complementation studies, however, suggest that most of the TPS-like proteins are catalytically inactive and expression studies reveal extensive regulation at the transcriptional level. Therefore, they might function as metabolic sensors of plant carbon status.

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seminar Dr Lars Ostergaard 28/01
by Nathalie Vanden Hautte 15 Jan '10

15 Jan '10

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> . 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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mini-symposium January 20
by Nathalie Vanden Hautte 05 Jan '10

05 Jan '10

Dear All Please find attached the announcement of a mini-symposium on 'Trends in Communication and Regulation of Green Biotechnology' that will take place on January 20. Kind regards Nathalie ____________________________________________ Nathalie Vanden Hautte 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 nahau(a)psb.vib-ugent.be

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seminar Prof Filip Rolland
by Nathalie Vanden Hautte 04 Jan '10

04 Jan '10

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> . 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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