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SUMMARY:Identification of a suppressor of arbuscular mycorrhizal fungal sy
 mbiosis in rice - Jeongmin Choi\, Paszkowski Lab
DTSTART:20171123T130000Z
DTEND:20171123T133000Z
UID:TALK82661@talks.cam.ac.uk
CONTACT:Pallavi Singh
DESCRIPTION:Arbuscular mycorrhizal (AM) colonization is the most common fo
 rm of plant symbiosis on earth\, with over 80% of terrestrial plants and a
 pproximate 200 species of fungi participating in this relationship. In soi
 l\, the fungal spores germinate and colonize host roots to form tree-like 
 structures called arbuscules in the inner cortical cells where the fungi p
 rovide plants with essential minerals.  In exchange\, plants provide fungi
  with carbon produced during photosynthesis. Until recently the host compo
 nents that recognize the AM fungi were unknown. Interestingly\, we identif
 ied that the receptor complex previously described to detect the smoke der
 ived germination promoting compound\, karrikin\, is also involved in the p
 erception of the fungus. The plant receptor\, Dwarf 14-Like (D14L)\, belon
 gs to an alpha beta fold hydrolase family and d14l mutants completely lose
  susceptibility to AM fungi. In karrikin perception\, Suppressor of MAX2 1
 (SMAX1) acts as a negative regulator. We found indeed SMAX1 also functions
  as a negative regulator of fungal perception acting downstream of D14L re
 ceptor complex. In conclusion\, we have identified SMAX1 as a negative reg
 ulator of AM symbiosis\, which will help unravel the molecular details of 
 this widespread symbiotic relationship. 
LOCATION:Department of Plant Sciences\, Large Lecture Theatre
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