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SUMMARY:Reprogramming plant cells for endosymbiotic infection - Fernanda d
 e Carvalho-Niebel (The Laboratory of Plant-Microbe Interactions\, INRA-CNR
 S\, Toulouse)
DTSTART:20190529T150000Z
DTEND:20190529T160000Z
UID:TALK124921@talks.cam.ac.uk
CONTACT:Nataliia Kuksa
DESCRIPTION:Plants have the ability to overcome nutrient limitations by es
 tablishing beneficial symbiotic associations with soil microbes. In the el
 aborate association between legumes and nitrogen-fixing rhizobia\, the bac
 teria are hosted within specialized root nodules\, where they have the opt
 imal environment for fixing atmospheric dinitrogen for the plant. The succ
 ess of this interaction depends on a compatible molecular dialogue between
  the plant and the rhizobial partner before the bacteria can enter the hos
 t root via newly formed transcellular tubular structures called infection 
 threads (ITs). While IT development initiates from root hair cells\, coord
 inated reprogramming in underlying root cell layers takes place for accomm
 odating the symbiotic bacteria and initiating nodule organogenesis. Althou
 gh remarkable progress has been made on the identification of key plant ge
 nes required for symbiotic signalling\, much remains to be done for the un
 derstanding of how they orchestrate downstream cellular reprogramming and 
 coordinated developmental changes. We have combined molecular\, genetic an
 d live cell imaging approaches to investigate regulatory mechanisms underl
 ying rhizobia infection and its reprogramming in the model Medicago trunca
 tula. Our data demonstrate the importance of intercellular communication a
 nd cell-specific remodelling for paving the way for endosymbiotic root inf
 ection.
LOCATION:Auditorium of Sainsbury Laboratory Cambridge University (Bateman 
 Street)
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