[Seminars] Seminar Prof Jiri Friml Friday, October 14 POSTPONED

[Delphine Verspeel]

Dear all, 

Unfortunately The seminar of Jiri Friml is postponed due to covid. 

Kind regards, 
Delphine 


Van: "Delphine Verspeel" <delphine.verspeel at psb.vib-ugent.be> 
Aan: "meetings" <meetings at psb.vib-ugent.be> 
Verzonden: Vrijdag 30 september 2022 18:02:02 
Onderwerp: You are invited to attend “Auxin signaling: more than we could ever imagine” ON October 14, 2022 


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'' 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 

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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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