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Ledford WC, Silvestri A, Fiorilli V, Roth R, Rubio-Somoza I, Lanfranco L. A journey into the world of small RNAs in the arbuscular mycorrhizal symbiosis. THE NEW PHYTOLOGIST 2024; 242:1534-1544. [PMID: 37985403 DOI: 10.1111/nph.19394] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/15/2023] [Indexed: 11/22/2023]
Abstract
Arbuscular mycorrhizal (AM) symbiosis is a mutualistic interaction between fungi and most land plants that is underpinned by a bidirectional exchange of nutrients. AM development is a tightly regulated process that encompasses molecular communication for reciprocal recognition, fungal accommodation in root tissues and activation of symbiotic function. As such, a complex network of transcriptional regulation and molecular signaling underlies the cellular and metabolic reprogramming of host cells upon AM fungal colonization. In addition to transcription factors, small RNAs (sRNAs) are emerging as important regulators embedded in the gene network that orchestrates AM development. In addition to controlling cell-autonomous processes, plant sRNAs also function as mobile signals capable of moving to different organs and even to different plants or organisms that interact with plants. AM fungi also produce sRNAs; however, their function in the AM symbiosis remains largely unknown. Here, we discuss the contribution of host sRNAs in the development of AM symbiosis by considering their role in the transcriptional reprogramming of AM fungal colonized cells. We also describe the characteristics of AM fungal-derived sRNAs and emerging evidence for the bidirectional transfer of functional sRNAs between the two partners to mutually modulate gene expression and control the symbiosis.
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Affiliation(s)
- William Conrad Ledford
- Department of Life Sciences and Systems Biology, University of Turin, Turin, 10125, Italy
- Molecular Reprogramming and Evolution (MoRE) Lab, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Barcelona, 08193, Spain
| | - Alessandro Silvestri
- Molecular Reprogramming and Evolution (MoRE) Lab, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Barcelona, 08193, Spain
| | - Valentina Fiorilli
- Department of Life Sciences and Systems Biology, University of Turin, Turin, 10125, Italy
| | - Ronelle Roth
- Department of Biology, University of Oxford, Oxford, OX1 3RB, UK
| | - Ignacio Rubio-Somoza
- Molecular Reprogramming and Evolution (MoRE) Lab, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Barcelona, 08193, Spain
- Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, 08001, Spain
| | - Luisa Lanfranco
- Department of Life Sciences and Systems Biology, University of Turin, Turin, 10125, Italy
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Eckardt NA, Axtell MJ, Barta A, Chen X, Gregory BD, Guo H, Manavella PA, Mosher RA, Meyers BC. Focus on RNA biology. THE PLANT CELL 2023; 35:1617-1618. [PMID: 36943779 DOI: 10.1093/plcell/koad082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/13/2023] [Accepted: 03/13/2023] [Indexed: 05/30/2023]
Affiliation(s)
- Nancy A Eckardt
- Senior Features Editor, The Plant Cell, American Society of Plant Biologists, USA
| | - Michael J Axtell
- Reviewing Editor, The Plant Cell, American Society of Plant Biologists, USA
- Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA
| | - Andrea Barta
- Reviewing Editor, The Plant Cell, American Society of Plant Biologists, USA
- Max Perutz Labs, Medical University of Vienna, Vienna Biocenter Campus, 1030 Vienna, Austria
| | - Xuemei Chen
- Senior Editor, The Plant Cell, American Society of Plant Biologists, USA
- Department of Botany and Plant Sciences and Center for Plant Cell Biology, Institute of Integrative Genome Biology, University of California-Riverside, Riverside, CA 92521, USA
| | - Brian D Gregory
- Reviewing Editor, The Plant Cell, American Society of Plant Biologists, USA
- Department of Biology, University of Pennsylvania, School of Arts and Sciences, Philadelphia, PA 19104, USA
| | - Hongwei Guo
- Reviewing Editor, The Plant Cell, American Society of Plant Biologists, USA
- Department of Biology, Institute of Plant and Food Science, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Pablo A Manavella
- Guest Editor, The Plant Cell, American Society of Plant Biologists, USA
- Instituto de Agrobiotecnología del Litoral (CONICET-UNL), Cátedra de Biología Celular y Molecular, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe 3000, Argentina
| | - Rebecca A Mosher
- Guest Editor, The Plant Cell, American Society of Plant Biologists, USA
- The School of Plant Sciences, The University of Arizona, Tucson, AZ 85721, USA
| | - Blake C Meyers
- Editor-in-Chief, The Plant Cell, American Society of Plant Biologists, USA
- Donald Danforth Plant Science Center, St. Louis, MO 63132, USA
- Division of Plant Sciences and Technology, University of Missouri-Columbia, Columbia, MO 65211, USA
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