[Seminars] Seminar Dr Thomas Widiez TODAY at 11 am

[Delphine Verspeel]

REMINDER 


Van: "Delphine Verspeel" <delphine.verspeel at psb.vib-ugent.be> 
Aan: "meetings" <meetings at psb.vib-ugent.be> 
Verzonden: Dinsdag 15 maart 2022 13:29:04 
Onderwerp: You are invited to attend “Maize reproduction: Focus on pollen and seed development” ON March 31, 2022 





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''Maize reproduction: Focus on pollen and seed development'' 


Dr Thomas Widiez 

Plant Reproduction and Development 
ENS Lyon 
FRANCE 


Thursday, March 31, 2022 
11:00 










In flowering plants, sexual reproduction is characterized by a unique biological process called double fertilization. It consists of two synchronized fusion events between male and female gametes: two sperm cells (from the same pollen grain) fused separately with the two female gametes: egg cell and central cell. This double fertilization gives rise to two different individuals/tissues: the embryo and the endosperm, which are enclosed by maternal tissues. A coordinated development of these three genetically distinct tissues, organized like a Russian doll, lead to the seed. By using maize and combining OMICs, genetics (mutants and CRISPR/cas9) and cell biology approaches, our work aims to tackle questions on plant reproduction: How is the synchronization of double fertilization ensured? How is the communication between the three seed compartments established to ensure proper seed development? I will illustrate our research focusing on two aspects: (1) On the pollen side, I will present the characterization of a still enigmatic interface: the endo-plasma membrane (endo-PM) that originates from the pollen vegetative cell and wraps the two sperm cells, forming a unique “cell within a cell” structure. (2) On the seed development side, I will present the characterization of a new embryo/endosperm interface: the endosperm adjacent to scutellum (EAS). 

Jozef Schell seminar room 
Technologiepark 71 - 9052 




Invited by Prof Dirk Inzé and Prof Moritz Nowack 

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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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