TY - JOUR
T1 - PHOSPHATE STARVATION RESPONSE transcription factors enable arbuscular mycorrhiza symbiosis
AU - Das, Debatosh
AU - Paries, Michael
AU - Hobecker, Karen
AU - Gigl, Michael
AU - Dawid, Corinna
AU - Lam, Hon Ming
AU - Zhang, Jianhua
AU - Chen, Moxian
AU - Gutjahr, Caroline
N1 - Funding Information:
We thank Prof. Mao Chuanzao (Zhejiang University; Zhejiang, China) and Prof. Chengcai Chu (Chinese Academy of Sciences; Beijing, China) for the kind donation of seeds and Philipp Chapman (Gutjahr laboratory) for excellent technical support. The study was mainly funded by research grant 2020M672839 “Phosphate regulation of rice arbuscular mycorrhiza symbiosis” by the China Postdoctoral Science Foundation and a postdoc research grant from CUHK Shenzhen Research Institute to D.D.; by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant No. 759731) ‘to C.G.; by the CRC924 ‘Molecular mechanisms regulating yield and yield stability and plants’ of the German Research Council (DFG) grant to C.G. (project B03) and C.D. (project B12); by the Natural Science Foundation of Jiangsu Province SBK2020042924 grant to M.C.; by the Hong Kong Research Grant Council grant 14177617 to J.Z. and by the Hong Kong Research Grant Council Area of Excellence Scheme grant AoE/M-403/16 grant to H.M.L. and J.Z.
Open Access funding enabled and organized by Projekt DEAL.
Publisher Copyright:
© The Author(s) 2022
PY - 2022/1/25
Y1 - 2022/1/25
N2 - Arbuscular mycorrhiza (AM) is a widespread symbiosis between roots of the majority of land plants and Glomeromycotina fungi. AM is important for ecosystem health and functioning as the fungi critically support plant performance by providing essential mineral nutrients, particularly the poorly accessible phosphate, in exchange for organic carbon. AM fungi colonize the inside of roots and this is promoted at low but inhibited at high plant phosphate status, while the mechanistic basis for this phosphate-dependence remained obscure. Here we demonstrate that a major transcriptional regulator of phosphate starvation responses in rice PHOSPHATE STARVATION RESPONSE 2 (PHR2) regulates AM. Root colonization of phr2 mutants is drastically reduced, and PHR2 is required for root colonization, mycorrhizal phosphate uptake, and yield increase in field soil. PHR2 promotes AM by targeting genes required for pre-contact signaling, root colonization, and AM function. Thus, this important symbiosis is directly wired to the PHR2-controlled plant phosphate starvation response.
AB - Arbuscular mycorrhiza (AM) is a widespread symbiosis between roots of the majority of land plants and Glomeromycotina fungi. AM is important for ecosystem health and functioning as the fungi critically support plant performance by providing essential mineral nutrients, particularly the poorly accessible phosphate, in exchange for organic carbon. AM fungi colonize the inside of roots and this is promoted at low but inhibited at high plant phosphate status, while the mechanistic basis for this phosphate-dependence remained obscure. Here we demonstrate that a major transcriptional regulator of phosphate starvation responses in rice PHOSPHATE STARVATION RESPONSE 2 (PHR2) regulates AM. Root colonization of phr2 mutants is drastically reduced, and PHR2 is required for root colonization, mycorrhizal phosphate uptake, and yield increase in field soil. PHR2 promotes AM by targeting genes required for pre-contact signaling, root colonization, and AM function. Thus, this important symbiosis is directly wired to the PHR2-controlled plant phosphate starvation response.
UR - http://www.scopus.com/inward/record.url?scp=85123702922&partnerID=8YFLogxK
U2 - 10.1038/s41467-022-27976-8
DO - 10.1038/s41467-022-27976-8
M3 - Journal article
C2 - 35078978
AN - SCOPUS:85123702922
SN - 2041-1723
VL - 13
JO - Nature Communications
JF - Nature Communications
M1 - 477
ER -
