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Université de Fribourg

VAPYRIN-like is required for development of the moss Physcomitrella patens

Rathgeb, Ursina ; Chen, Min ; Buron, Flavien ; Feddermann, Nadja ; Schorderet, Martine ; Raisin, Axelle ; Häberli, Gabrielle-Yasymi ; Marc-Martin, Sophie ; Keller, Jean ; Delaux, Pierre-Marc ; Schaefer, Didier G. ; Reinhardt, Didier

In: Development, 2020, vol. 147, no. 11, p. dev184762

The VAPYRIN (VPY) gene in Medicago truncatula and Petunia hybrida is required for arbuscular mycorrhizal (AM) symbiosis. The moss Physcomitrella patens has a close homolog (VPY-like, VPYL), although it does not form AM. Here, we explore the phylogeny of VPY and VPYL in land plants, and study the expression and developmental function of VPYL in P. patens. We show that VPYL is expressed ...

Université de Fribourg

LCO receptors involved in arbuscular mycorrhiza are functional for rhizobia perception in legumes

Girardin, Ariane ; Wang, Tongming ; Ding, Yi ; Keller, Jean ; Buendia, Luis ; Gaston, Mégane ; Ribeyre, Camille ; Gasciolli, Virginie ; Auriac, Marie-Christine ; Vernié, Tatiana ; Bendahmane, Abdelhafid ; Ried, Martina Katharina ; Parniske, Martin ; Morel, Patrice ; Vandenbussche, Michiel ; Schorderet, Martine ; Reinhardt, Didier ; Delaux, Pierre-Marc ; Bono, Jean-Jacques ; Lefebvre, Benoit

In: Current Biology, 2019, vol. 29, no. 24, p. 4249-4259.e5

Bacterial lipo-chitooligosaccharides (LCOs) are key mediators of the nitrogen-fixing root nodule symbiosis (RNS) in legumes. The isolation of LCOs from arbuscular mycorrhizal fungi suggested that LCOs are also signaling molecules in arbuscular mycorrhiza (AM). However, the corresponding plant receptors have remained uncharacterized. Here we show that petunia and tomato mutants in the LysM ...