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Root endophyte differentially regulates plant response to NO3- and NH4+ nutrition by modulating N fluxes at the plant-fungal interface.
Sun, Kai; Lu, Fan; Huang, Peng-Wei; Tang, Meng-Jun; Xu, Fang-Ji; Zhang, Wei; Zhou, Jia-Yu; Zhao, Ping; Jia, Yong; Dai, Chuan-Chao.
Afiliación
  • Sun K; Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China.
  • Lu F; Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China.
  • Huang PW; Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China.
  • Tang MJ; Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China.
  • Xu FJ; Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China.
  • Zhang W; Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China.
  • Zhou JY; Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China.
  • Zhao P; Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China.
  • Jia Y; Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China.
  • Dai CC; Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China.
Plant Cell Environ ; 45(6): 1813-1828, 2022 06.
Article en En | MEDLINE | ID: mdl-35274310
In the soil, plant roots associated with fungi often encounter uneven distribution of nitrate (NO3- )/ammonium (NH4+ ) patches, but the mechanism underlying N form-influenced plant-fungal interactions remains limited. We inoculated Arabidopsis with a root endophyte Phomopsis liquidambaris, and evaluated the effects of P. liquidambaris on plant performance under NO3- or NH4+ nutrition. Under NO3- nutrition, P. liquidambaris inoculation promoted seedling growth, whereas under NH4+ nutrition, P. liquidambaris suppressed seedling growth. Under high NH4+ conditions, fungus-colonized roots displayed increased NH4+ accumulation and NH4+ efflux, similar to the effect of ammonium stress caused by elevated NH4+ levels. Notably, this fungus excluded NH4+ during interactions with host roots, thereby leading to increased NH4+ levels at the plant-fungal interface under high NH4+ conditions. A nitrite reductase-deficient strain that excludes NO3- but absorbs NH4+ , decreased NH4+ levels in Arabidopsis shoots and rescued plant growth and nitrogen metabolism under high NH4+ levels. Transcriptomic analysis highlighted that P. liquidambaris had altered transcriptional responses associated with plant response to inorganic N forms. Our results demonstrate that fungus-regulated NO3- /NH4+ dynamics at the plant-fungal interface alters plant response to NO3- /NH4+ nutrition. This study highlights the essential functions of root endophytes in plant adaptation to soil nitrogen nutrients.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Arabidopsis / Compuestos de Amonio Idioma: En Revista: Plant Cell Environ Asunto de la revista: BOTANICA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
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Imprimir
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PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Arabidopsis / Compuestos de Amonio Idioma: En Revista: Plant Cell Environ Asunto de la revista: BOTANICA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos