TY - JOUR
T1 - Epidermal LysM receptor ensures robust symbiotic signalling in Lotus japonicus
AU - Murakami, Eiichi
AU - Cheng, Jeryl
AU - Gysel, Kira
AU - Bozsoki, Zoltan
AU - Kawaharada, Yasuyuki
AU - Hjuler, Christian Toftegaard
AU - Sørensen, Kasper Kildegaard
AU - Tao, Ke
AU - Kelly, Simon
AU - Venice, Francesco
AU - Genre, Andrea
AU - Thygesen, Mikkel Boas
AU - Jong, Noor de
AU - Vinther, Maria
AU - Jensen, Dorthe Bødker
AU - Jensen, Knud Jørgen
AU - Blaise, Michael
AU - Madsen, Lene Heegaard
AU - Andersen, Kasper Røjkjær
AU - Stougaard, Jens
AU - Radutoiu, Simona
N1 - © 2018, Murakami et al.
PY - 2018/6/29
Y1 - 2018/6/29
N2 - Recognition of Nod factors by LysM receptors is crucial for nitrogen-fixing symbiosis in most legumes. The large families of LysM receptors in legumes suggest concerted functions, yet only NFR1 and NFR5 and their closest homologs are known to be required. Here we show that an epidermal LysM receptor (NFRe), ensures robust signalling in L. japonicus. Mutants of Nfre react to Nod factors with increased calcium spiking interval, reduced transcriptional response and fewer nodules in the presence of rhizobia. NFRe has an active kinase capable of phosphorylating NFR5, which in turn, controls NFRe downstream signalling. Our findings provide evidence for a more complex Nod factor signalling mechanism than previously anticipated. The spatio-temporal interplay between Nfre and Nfr1, and their divergent signalling through distinct kinases suggests the presence of an NFRe-mediated idling state keeping the epidermal cells of the expanding root system attuned to rhizobia.
AB - Recognition of Nod factors by LysM receptors is crucial for nitrogen-fixing symbiosis in most legumes. The large families of LysM receptors in legumes suggest concerted functions, yet only NFR1 and NFR5 and their closest homologs are known to be required. Here we show that an epidermal LysM receptor (NFRe), ensures robust signalling in L. japonicus. Mutants of Nfre react to Nod factors with increased calcium spiking interval, reduced transcriptional response and fewer nodules in the presence of rhizobia. NFRe has an active kinase capable of phosphorylating NFR5, which in turn, controls NFRe downstream signalling. Our findings provide evidence for a more complex Nod factor signalling mechanism than previously anticipated. The spatio-temporal interplay between Nfre and Nfr1, and their divergent signalling through distinct kinases suggests the presence of an NFRe-mediated idling state keeping the epidermal cells of the expanding root system attuned to rhizobia.
U2 - 10.7554/eLife.33506
DO - 10.7554/eLife.33506
M3 - Journal article
C2 - 29957177
SN - 2050-084X
VL - 7
JO - eLife
JF - eLife
M1 - e33506
ER -