- Seminars - maillist.psb.ugent.be

PSB event reminder
by contact＠psb.vib-ugent.be 12 Oct '10

12 Oct '10

Calendar Name: seminars Scheduled for: Tuesday, October 12 2010, 11:00 - 12:30 Event text: Prof Corn� Pieterse Plant Microbe Interactions Department of Biology Faculty of Science Utrecht University Utrecht the Netherlands Details: "Plant immunity: it�s the hormones talking, but what do they say?" ABSTRACT Plants live in complex environments in which they intimately interact with a broad range of other organisms. Besides the plethora of deleterious interactions with pathogens and insect herbivores, relationships with beneficial microorganisms are frequent in nature as well, improving plant growth or helping the plant to overcome stress. The evolutionary arms race between plants and their enemies provided plants with a highly sophisticated defense system that, like the animal innate immune system, recognizes non-self molecules or signals from injured cells, and responds by activating an effective immune response against the invader encountered. Recent advances in plant immunity research underpin the pivotal role of cross-communicating hormones in the regulation of the plant�s defense signaling network. Their powerful regulatory potential allows the plant to quickly adapt to its hostile environment and to utilize its resources in a cost-efficient manner. Plant enemies on the other hand, can hijack the plant�s defense signaling network for their own benefit by affecting hormone homeostasis to antagonize the host immune response. Similarly, beneficial microbes actively interfere with hormone-regulated immune responses to avoid being recognized as an alien organism. In nature, plants simultaneously or sequentially interact with multiple beneficial and antagonistic organisms with very different lifestyles. However, knowledge on how the hormone-regulated plant immune signaling network functions during multi-species interactions is still in its infancy. In the past years, various genomics approaches expanded our understanding of the molecular mechanisms by which plants tailor their defense response to pathogen and insect attack. Diverse hormones such as salicylic acid (SA), jasmonic acid (JA) and ethylene (ET) play pivotal roles in the regulation of the defense signaling network. Our research is focused on the molecular interplay between these hormones and how their interactions steer the final outcome of the plant immune response.

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

10 Oct '10

Calendar Name: seminars Scheduled for: Tuesday, October 12 2010, 11:00 - 12:30 Event text: Prof Corn� Pieterse Plant Microbe Interactions Department of Biology Faculty of Science Utrecht University Utrecht the Netherlands Details: "Plant immunity: it�s the hormones talking, but what do they say?" ABSTRACT Plants live in complex environments in which they intimately interact with a broad range of other organisms. Besides the plethora of deleterious interactions with pathogens and insect herbivores, relationships with beneficial microorganisms are frequent in nature as well, improving plant growth or helping the plant to overcome stress. The evolutionary arms race between plants and their enemies provided plants with a highly sophisticated defense system that, like the animal innate immune system, recognizes non-self molecules or signals from injured cells, and responds by activating an effective immune response against the invader encountered. Recent advances in plant immunity research underpin the pivotal role of cross-communicating hormones in the regulation of the plant�s defense signaling network. Their powerful regulatory potential allows the plant to quickly adapt to its hostile environment and to utilize its resources in a cost-efficient manner. Plant enemies on the other hand, can hijack the plant�s defense signaling network for their own benefit by affecting hormone homeostasis to antagonize the host immune response. Similarly, beneficial microbes actively interfere with hormone-regulated immune responses to avoid being recognized as an alien organism. In nature, plants simultaneously or sequentially interact with multiple beneficial and antagonistic organisms with very different lifestyles. However, knowledge on how the hormone-regulated plant immune signaling network functions during multi-species interactions is still in its infancy. In the past years, various genomics approaches expanded our understanding of the molecular mechanisms by which plants tailor their defense response to pathogen and insect attack. Diverse hormones such as salicylic acid (SA), jasmonic acid (JA) and ethylene (ET) play pivotal roles in the regulation of the defense signaling network. Our research is focused on the molecular interplay between these hormones and how their interactions steer the final outcome of the plant immune response.

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FW: meetings Prof Alison Smith
by Nathalie Vanden Hautte 01 Oct '10

01 Oct '10

REMINDER From: Nathalie Vanden Hautte Sent: woensdag 29 september 2010 10:04 To: 'pi(a)psb.vib-ugent.be' Subject: meetings Prof Alison Smith Dear All Enclosed you can find the announcement and abstract of Prof Alison Smith's seminar on Monday, October 25. Please contact me if you would like to have a meeting with Prof Smith. Thank you in advance! 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 Alison Smith 25/10
by Nathalie Vanden Hautte 29 Sep '10

29 Sep '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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seminar Prof Corné Pieterse 12/10
by Nathalie Vanden Hautte 27 Sep '10

27 Sep '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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upcoming seminars October
by Nathalie Vanden Hautte 27 Sep '10

27 Sep '10

Dear All Enclosed you can find our upcoming seminars for October. 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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PSB event reminder
by contact＠psb.vib-ugent.be 21 Sep '10

21 Sep '10

Calendar Name: seminars Scheduled for: Tuesday, September 21 2010, 15:00 - 16:30 Event text: Toshihiro Obata Max-Planck-Institute f�r Molecular Plant Physiology Potsdam-Golm GERMANY Details: "Metabolic response to oxidative stress in Arabidopsis" ABSTRACT Plants must reconfigure their metabolic network under stress conditions to prevent the accumulation of reactive oxygen species (ROS) and to produce indispensable metabolites. We have investigated the response of Arabidopsis roots to menadione-induced oxidative stress by means of metabolite profiling and transcriptome analysis. The results suggested the importance of mitochondrial metabolism in stress response and also highlighted a complex relationship between the levels of transcripts, metabolites, and metabolic flux. We hypothesise the reassembly of enzyme protein complexes as a molecular mechanism of mitochondrial metabolic regulation. A proteomic approach using blue-native/SDS-PAGE revealed that some mitochondrial enzymes associated to or dissociated from a protein complex under oxidative stress. These results suggest the regulation of the TCA cycle, glycolysis, ascorbate and amino acid metabolism under oxidative stress by reassembly of enzyme supercomplexes.

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PSB event reminder
by contact＠psb.vib-ugent.be 21 Sep '10

21 Sep '10

Calendar Name: seminars Scheduled for: Tuesday, September 21 2010, 11:00 - 12:30 Event text: Alisdair R. Fernie Max-Planck Institute f�r Molecular Plant Physiology Potsdam-Golm GERMANY Details: "Metabolomics from fundamental understanding to marker-assisted breeding" ABSTRACT Metabolomics approaches enable the parallel assessment of the levels of a broad range of metabolites and have been documented to have great value in both phenotyping and diagnostic analyses in plants. These tools have recently been turned to evaluation of the natural variance apparent in metabolite composition. Here, I will describe exciting progress made in the identification of the genetic determinants of crop plant chemical composition, focussing on the application of metabolomics strategies and their integration with other high-throughput technologies. The Zamir Solanum pennellii introgression lines will be used as a case study and I will illustrate the value of this approach by demonstrating a few examples whereby we have been able to identify the genetic factors underlying important agronomic and nutritional traits. Whilst work in this area is currently carried out at the level of fundamental science I will conclude with an outlook of my personal perspective of its applied uses.

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PSB event reminder
by contact＠psb.vib-ugent.be 19 Sep '10

19 Sep '10

Calendar Name: seminars Scheduled for: Tuesday, September 21 2010, 15:00 - 16:30 Event text: Toshihiro Obata Max-Planck-Institute f�r Molecular Plant Physiology Potsdam-Golm GERMANY Details: "Metabolic response to oxidative stress in Arabidopsis" ABSTRACT Plants must reconfigure their metabolic network under stress conditions to prevent the accumulation of reactive oxygen species (ROS) and to produce indispensable metabolites. We have investigated the response of Arabidopsis roots to menadione-induced oxidative stress by means of metabolite profiling and transcriptome analysis. The results suggested the importance of mitochondrial metabolism in stress response and also highlighted a complex relationship between the levels of transcripts, metabolites, and metabolic flux. We hypothesise the reassembly of enzyme protein complexes as a molecular mechanism of mitochondrial metabolic regulation. A proteomic approach using blue-native/SDS-PAGE revealed that some mitochondrial enzymes associated to or dissociated from a protein complex under oxidative stress. These results suggest the regulation of the TCA cycle, glycolysis, ascorbate and amino acid metabolism under oxidative stress by reassembly of enzyme supercomplexes.

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PSB event reminder
by contact＠psb.vib-ugent.be 19 Sep '10

19 Sep '10

Calendar Name: seminars Scheduled for: Tuesday, September 21 2010, 11:00 - 12:30 Event text: Alisdair R. Fernie Max-Planck Institute f�r Molecular Plant Physiology Potsdam-Golm GERMANY Details: "Metabolomics from fundamental understanding to marker-assisted breeding" ABSTRACT Metabolomics approaches enable the parallel assessment of the levels of a broad range of metabolites and have been documented to have great value in both phenotyping and diagnostic analyses in plants. These tools have recently been turned to evaluation of the natural variance apparent in metabolite composition. Here, I will describe exciting progress made in the identification of the genetic determinants of crop plant chemical composition, focussing on the application of metabolomics strategies and their integration with other high-throughput technologies. The Zamir Solanum pennellii introgression lines will be used as a case study and I will illustrate the value of this approach by demonstrating a few examples whereby we have been able to identify the genetic factors underlying important agronomic and nutritional traits. Whilst work in this area is currently carried out at the level of fundamental science I will conclude with an outlook of my personal perspective of its applied uses.

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