PHOSPHATE STARVATION RESPONSE enables arbuscular mycorrhiza symbiosis
PHOSPHATE STARVATION RESPONSE enables arbuscular mycorrhiza symbiosis
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.
Das Debatosh、Paries Michael、Hobecker Karen、Gigl Michael、Dawid Corinna、Gutjahr Caroline、Chen Moxian、Zhang Jianhua、Lam Hon-Ming
State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University||CUHK Shenzhen Research InstitutePlant Genetics, TUM School of Life Sciences, Technical University of Munich (TUM)Plant Genetics, TUM School of Life Sciences, Technical University of Munich (TUM)Chair of Food Chemistry and Molecular and Sensory Science, TUM School of Life Sciences, Technical University of Munich (TUM)Chair of Food Chemistry and Molecular and Sensory Science, TUM School of Life Sciences, Technical University of Munich (TUM)Plant Genetics, TUM School of Life Sciences, Technical University of Munich (TUM)State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou UniversityCUHK Shenzhen Research Institute||State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong||Department of Biology, Hong Kong Baptist UniversityCUHK Shenzhen Research Institute||State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong
植物学生物科学研究方法、生物科学研究技术农业科学研究
Das Debatosh,Paries Michael,Hobecker Karen,Gigl Michael,Dawid Corinna,Gutjahr Caroline,Chen Moxian,Zhang Jianhua,Lam Hon-Ming.PHOSPHATE STARVATION RESPONSE enables arbuscular mycorrhiza symbiosis[EB/OL].(2025-03-28)[2025-08-03].https://www.biorxiv.org/content/10.1101/2021.11.05.467437.点此复制
评论