The type III effector NopL interacts with GmREM1a and GmNFR5 to promote symbiosis in soybean

Author:

Ma ChaoORCID,Wang JinhuiORCID,Gao Yongkang,Dong XulunORCID,Feng Haojie,Yang Mingliang,Yu Yanyu,Liu ChunyanORCID,Wu Xiaoxia,Qi Zhaoming,Mur Luis A. J.ORCID,Magne KévinORCID,Zou Jianan,Hu Zhenbang,Tian ZhixiORCID,Su Chao,Ratet PascalORCID,Chen QingshanORCID,Xin DaweiORCID

Abstract

AbstractThe establishment of symbiotic interactions between leguminous plants and rhizobia requires complex cellular programming activated by Rhizobium Nod factors (NFs) as well as type III effector (T3E)-mediated symbiotic signaling. However, the mechanisms by which different signals jointly affect symbiosis are still unclear. Here we describe the mechanisms mediating the cross-talk between the broad host range rhizobia Sinorhizobium fredii HH103 T3E Nodulation Outer Protein L (NopL) effector and NF signaling in soybean. NopL physically interacts with the Glycine max Remorin 1a (GmREM1a) and the NFs receptor NFR5 (GmNFR5) and promotes GmNFR5 recruitment by GmREM1a. Furthermore, NopL and NF influence the expression of GmRINRK1, a receptor-like kinase (LRR-RLK) ortholog of the Lotus RINRK1, that mediates NF signaling. Taken together, our work indicates that S. fredii NopL can interact with the NF signaling cascade components to promote the symbiotic interaction in soybean.

Funder

National Key Research & Development Program of China

CNRS and by a grant

Publisher

Springer Science and Business Media LLC

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