Arbuscular mycorrhiza: the mother of plant root endosymbioses

This paper provides experimental proof that such calcium signatures are induced by Arbuscular mycorrhiza fungi

Martin Parniske

2008

Scholarcy highlights

  • The genetic overlap between Arbuscular mycorrhiza and the root nodule symbiosis led to the prediction that calcium signatures are an intermediate signal in response to AM fungi
  • This paper provides experimental proof that such calcium signatures are induced by AM fungi
  • Shows that SYMRK is a genetic link between all root endosymbioses
  • Showed that AM functionality of the common symbiosis receptor kinase SYMRK is conserved across angiosperm lineages
  • Up to 20% of plant-fixed carbon is transferred to the fungus
  • The evolution of root-nodule symbiosis was associated with structural polymorphism in the extracellular domain of SYMRK, which could be involved in ligand perception
  • But flexible, linear polymer of actin subunits and component of the cytoskeleton

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