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Giovannetti M, Genre A. Plant-fungus symbiosis: One receptor to switch on the green light. Curr Biol 2024; 34:R507-R509. [PMID: 38772340 DOI: 10.1016/j.cub.2024.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
Arbuscular mycorrhiza, an ancient symbiosis with soil fungi, support mineral nutrition in most plants. How roots recognize such symbiotic fungi has long been debated. Recent research identifies a Medicago truncatula receptor as a key player in triggering symbiont accommodation responses.
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Affiliation(s)
- Marco Giovannetti
- Department of Life Science and Systems Biology, University of Turin, Turin, Italy.
| | - Andrea Genre
- Department of Life Science and Systems Biology, University of Turin, Turin, Italy.
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2
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Lam AHC, Cooke A, Wright H, Lawson DM, Charpentier M. Evolution of endosymbiosis-mediated nuclear calcium signaling in land plants. Curr Biol 2024; 34:2212-2220.e7. [PMID: 38642549 DOI: 10.1016/j.cub.2024.03.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/22/2024]
Abstract
The ability of fungi to establish mycorrhizal associations with plants and enhance the acquisition of mineral nutrients stands out as a key feature of terrestrial life. Evidence indicates that arbuscular mycorrhizal (AM) association is a trait present in the common ancestor of land plants,1,2,3,4 suggesting that AM symbiosis was an important adaptation for plants in terrestrial environments.5 The activation of nuclear calcium signaling in roots is essential for AM within flowering plants.6 Given that the earliest land plants lacked roots, whether nuclear calcium signals are required for AM in non-flowering plants is unknown. To address this question, we explored the functional conservation of symbiont-induced nuclear calcium signals between the liverwort Marchantia paleacea and the legume Medicago truncatula. In M. paleacea, AM fungi penetrate the rhizoids and form arbuscules in the thalli.7 Here, we demonstrate that AM germinating spore exudate (GSE) activates nuclear calcium signals in the rhizoids of M. paleacea and that this activation is dependent on the nuclear-localized ion channel DOES NOT MAKE INFECTIONS 1 (MpaDMI1). However, unlike flowering plants, MpaDMI1-mediated calcium signaling is only required for the thalli colonization but not for the AM penetration within rhizoids. We further demonstrate that the mechanism of regulation of DMI1 has diverged between M. paleacea and M. truncatula, including a key amino acid residue essential to sustain DMI1 in an inactive state. Our study reveals functional evolution of nuclear calcium signaling between liverworts and flowering plants and opens new avenues of research into the mechanism of endosymbiosis signaling.
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Affiliation(s)
- Anson H C Lam
- John Innes Centre, Cell and Developmental Biology Department, Norwich Research Park, Norwich NR4 7UH, UK
| | - Aisling Cooke
- John Innes Centre, Cell and Developmental Biology Department, Norwich Research Park, Norwich NR4 7UH, UK
| | - Hannah Wright
- John Innes Centre, Cell and Developmental Biology Department, Norwich Research Park, Norwich NR4 7UH, UK
| | - David M Lawson
- John Innes Centre, Biochemistry and Metabolism Department, Norwich Research Park, Norwich NR4 7UH, UK
| | - Myriam Charpentier
- John Innes Centre, Cell and Developmental Biology Department, Norwich Research Park, Norwich NR4 7UH, UK.
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3
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Giovannetti M, Binci F, Navazio L, Genre A. Fungal signals and calcium-mediated transduction pathways along the plant defence-symbiosis continuum. THE NEW PHYTOLOGIST 2024; 242:1404-1407. [PMID: 38659109 DOI: 10.1111/nph.19759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
This article is a Commentary on Giovannetti et al., 241: 1393–1400.
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Affiliation(s)
- Marco Giovannetti
- Department of Life Sciences and Systems Biology, University of Torino, 10125, Torino, Italy
- Department of Biology, University of Padova, 35131, Padova, Italy
| | - Filippo Binci
- Department of Biology, University of Padova, 35131, Padova, Italy
| | - Lorella Navazio
- Department of Biology, University of Padova, 35131, Padova, Italy
| | - Andrea Genre
- Department of Life Sciences and Systems Biology, University of Torino, 10125, Torino, Italy
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4
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Zhang J, Sun J, Chiu CH, Landry D, Li K, Wen J, Mysore KS, Fort S, Lefebvre B, Oldroyd GED, Feng F. A receptor required for chitin perception facilitates arbuscular mycorrhizal associations and distinguishes root symbiosis from immunity. Curr Biol 2024; 34:1705-1717.e6. [PMID: 38574729 PMCID: PMC11037463 DOI: 10.1016/j.cub.2024.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 02/15/2024] [Accepted: 03/12/2024] [Indexed: 04/06/2024]
Abstract
Plants establish symbiotic associations with arbuscular mycorrhizal fungi (AMF) to facilitate nutrient uptake, particularly in nutrient-limited conditions. This partnership is rooted in the plant's ability to recognize fungal signaling molecules, such as chitooligosaccharides (chitin) and lipo-chitooligosaccharides. In the legume Medicago truncatula, chitooligosaccharides trigger both symbiotic and immune responses via the same lysin-motif-receptor-like kinases (LysM-RLKs), notably CERK1 and LYR4. The nature of plant-fungal engagement is opposite according to the outcomes of immunity or symbiosis signaling, and as such, discrimination is necessary, which is challenged by the dual roles of CERK1/LYR4 in both processes. Here, we describe a LysM-RLK, LYK8, that is functionally redundant with CERK1 for mycorrhizal colonization but is not involved in chitooligosaccharides-induced immunity. Genetic mutation of both LYK8 and CERK1 blocks chitooligosaccharides-triggered symbiosis signaling, as well as mycorrhizal colonization, but shows no further impact on immunity signaling triggered by chitooligosaccharides, compared with the mutation of CERK1 alone. LYK8 interacts with CERK1 and forms a receptor complex that appears essential for chitooligosaccharides activation of symbiosis signaling, with the lyk8/cerk1 double mutant recapitulating the impact of mutations in the symbiosis signaling pathway. We conclude that this novel receptor complex allows chitooligosaccharides activation specifically of symbiosis signaling and helps the plant to differentiate between activation of these opposing signaling processes.
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Affiliation(s)
- Jingyi Zhang
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA
| | - Jongho Sun
- Crop Science Centre, Department of Plant Sciences, University of Cambridge, Cambridge CB3 0LE, UK
| | - Chai Hao Chiu
- Crop Science Centre, Department of Plant Sciences, University of Cambridge, Cambridge CB3 0LE, UK
| | - David Landry
- Laboratory of Plant-Microbe-Environment Interactions (LIPME), Université de Toulouse, INRAE, CNRS, Castanet-Tolosan 31326, France
| | - Kangping Li
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA
| | - Jiangqi Wen
- Institute for Agricultural Biosciences, Oklahoma State University, Ardmore, OK 73401, USA; Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Kirankumar S Mysore
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA; Institute for Agricultural Biosciences, Oklahoma State University, Ardmore, OK 73401, USA
| | - Sébastien Fort
- Université de Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France
| | - Benoit Lefebvre
- Laboratory of Plant-Microbe-Environment Interactions (LIPME), Université de Toulouse, INRAE, CNRS, Castanet-Tolosan 31326, France
| | - Giles E D Oldroyd
- Crop Science Centre, Department of Plant Sciences, University of Cambridge, Cambridge CB3 0LE, UK.
| | - Feng Feng
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA.
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5
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Oddi L, Volpe V, Carotenuto G, Politi M, Barni E, Crosino A, Siniscalco C, Genre A. Boosting species evenness, productivity and weed control in a mixed meadow by promoting arbuscular mycorrhizas. FRONTIERS IN PLANT SCIENCE 2024; 15:1303750. [PMID: 38390295 PMCID: PMC10883063 DOI: 10.3389/fpls.2024.1303750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 01/08/2024] [Indexed: 02/24/2024]
Abstract
Lowland meadows represent aboveground and belowground biodiversity reservoirs in intensive agricultural areas, improving water retention and filtration, ensuring forage production, contrasting erosion and contributing to soil fertility and carbon sequestration. Besides such major ecosystem services, the presence of functionally different plant species improves forage quality, nutritional value and productivity, also limiting the establishment of weeds and alien species. Here, we tested the effectiveness of a commercial seed mixture in restoring a lowland mixed meadow in the presence or absence of inoculation with arbuscular mycorrhizal (AM) fungi and biostimulation of symbiosis development with the addition of short chain chito-oligosaccharides (CO). Plant community composition, phenology and productivity were regularly monitored alongside AM colonization in control, inoculated and CO-treated inoculated plots. Our analyses revealed that the CO treatment accelerated symbiosis development significantly increasing root colonization by AM fungi. Moreover, the combination of AM fungal inoculation and CO treatment improved plant species evenness and productivity with more balanced composition in forage species. Altogether, our study presented a successful and scalable strategy for the reintroduction of mixed meadows as valuable sources of forage biomass; demonstrated the positive impact of CO treatment on AM development in an agronomic context, extending previous observations developed under controlled laboratory conditions and leading the way to the application in sustainable agricultural practices.
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Affiliation(s)
- Ludovica Oddi
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Veronica Volpe
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Gennaro Carotenuto
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Mara Politi
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Elena Barni
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Andrea Crosino
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Consolata Siniscalco
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Andrea Genre
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
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6
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Slimani A, Ait-El-Mokhtar M, Ben-Laouane R, Boutasknit A, Anli M, Abouraicha EF, Oufdou K, Meddich A, Baslam M. Molecular and Systems Biology Approaches for Harnessing the Symbiotic Interaction in Mycorrhizal Symbiosis for Grain and Oil Crop Cultivation. Int J Mol Sci 2024; 25:912. [PMID: 38255984 PMCID: PMC10815302 DOI: 10.3390/ijms25020912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/09/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Mycorrhizal symbiosis, the mutually beneficial association between plants and fungi, has gained significant attention in recent years due to its widespread significance in agricultural productivity. Specifically, arbuscular mycorrhizal fungi (AMF) provide a range of benefits to grain and oil crops, including improved nutrient uptake, growth, and resistance to (a)biotic stressors. Harnessing this symbiotic interaction using molecular and systems biology approaches presents promising opportunities for sustainable and economically-viable agricultural practices. Research in this area aims to identify and manipulate specific genes and pathways involved in the symbiotic interaction, leading to improved cereal and oilseed crop yields and nutrient acquisition. This review provides an overview of the research frontier on utilizing molecular and systems biology approaches for harnessing the symbiotic interaction in mycorrhizal symbiosis for grain and oil crop cultivation. Moreover, we address the mechanistic insights and molecular determinants underpinning this exchange. We conclude with an overview of current efforts to harness mycorrhizal diversity to improve cereal and oilseed health through systems biology.
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Affiliation(s)
- Aiman Slimani
- Centre d’Agrobiotechnologie et Bioingénierie, Unité de Recherche Labellisée CNRST (Centre AgroBiotech-URL-CNRST-05), Cadi Ayyad University, Marrakesh 40000, Morocco
- Laboratory of Agro-Food, Biotechnologies and Valorization of Plant Bioresources (AGROBIOVAL), Department of Biology, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
- Laboratory of Microbial Biotechnologies, Agrosciences, and Environment, Department of Biology, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Mohamed Ait-El-Mokhtar
- Laboratory Biochemistry, Environment & Agri-Food URAC 36, Department of Biology, Faculty of Science and Techniques—Mohammedia, Hassan II University of Casablanca, Mohammedia 28800, Morocco
| | - Raja Ben-Laouane
- Laboratory of Environment and Health, Department of Biology, Faculty of Science and Techniques, Errachidia 52000, Morocco
| | - Abderrahim Boutasknit
- Centre d’Agrobiotechnologie et Bioingénierie, Unité de Recherche Labellisée CNRST (Centre AgroBiotech-URL-CNRST-05), Cadi Ayyad University, Marrakesh 40000, Morocco
- Laboratory of Agro-Food, Biotechnologies and Valorization of Plant Bioresources (AGROBIOVAL), Department of Biology, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
- Department of Biology, Multidisciplinary Faculty of Nador, Mohamed First University, Nador 62700, Morocco
| | - Mohamed Anli
- Laboratory of Agro-Food, Biotechnologies and Valorization of Plant Bioresources (AGROBIOVAL), Department of Biology, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
- Department of Life, Earth and Environmental Sciences, University of Comoros, Patsy University Center, Moroni 269, Comoros
| | - El Faiza Abouraicha
- Centre d’Agrobiotechnologie et Bioingénierie, Unité de Recherche Labellisée CNRST (Centre AgroBiotech-URL-CNRST-05), Cadi Ayyad University, Marrakesh 40000, Morocco
- Laboratory of Agro-Food, Biotechnologies and Valorization of Plant Bioresources (AGROBIOVAL), Department of Biology, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
- Higher Institute of Nursing and Health Techniques (ISPITS), Essaouira 44000, Morocco
| | - Khalid Oufdou
- Laboratory of Microbial Biotechnologies, Agrosciences, and Environment, Department of Biology, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Abdelilah Meddich
- Centre d’Agrobiotechnologie et Bioingénierie, Unité de Recherche Labellisée CNRST (Centre AgroBiotech-URL-CNRST-05), Cadi Ayyad University, Marrakesh 40000, Morocco
- Laboratory of Agro-Food, Biotechnologies and Valorization of Plant Bioresources (AGROBIOVAL), Department of Biology, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Marouane Baslam
- Centre d’Agrobiotechnologie et Bioingénierie, Unité de Recherche Labellisée CNRST (Centre AgroBiotech-URL-CNRST-05), Cadi Ayyad University, Marrakesh 40000, Morocco
- Laboratory of Agro-Food, Biotechnologies and Valorization of Plant Bioresources (AGROBIOVAL), Department of Biology, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
- GrowSmart, Seoul 03129, Republic of Korea
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7
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Binci F, Offer E, Crosino A, Sciascia I, Kleine-Vehn J, Genre A, Giovannetti M, Navazio L. Spatially and temporally distinct Ca2+ changes in Lotus japonicus roots orient fungal-triggered signalling pathways towards symbiosis or immunity. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:605-619. [PMID: 37712520 DOI: 10.1093/jxb/erad360] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/13/2023] [Indexed: 09/16/2023]
Abstract
Plants activate an immune or symbiotic response depending on the detection of distinct signals from root-interacting microbes. Both signalling cascades involve Ca2+ as a central mediator of early signal transduction. In this study, we combined aequorin- and cameleon-based methods to dissect the changes in cytosolic and nuclear Ca2+ concentration caused by different chitin-derived fungal elicitors in Lotus japonicus roots. Our quantitative analyses highlighted the dual character of the evoked Ca2+ responses taking advantage of the comparison between different genetic backgrounds: an initial Ca2+ influx, dependent on the LysM receptor CERK6 and independent of the common symbiotic signalling pathway (CSSP), is followed by a second CSSP-dependent and CERK6-independent phase, that corresponds to the well-known perinuclear/nuclear Ca2+ spiking. We show that the expression of immunity marker genes correlates with the amplitude of the first Ca2+ change, depends on elicitor concentration, and is controlled by Ca2+ storage in the vacuole. Our findings provide an insight into the Ca2+-mediated signalling mechanisms discriminating plant immunity- and symbiosis-related pathways in the context of their simultaneous activation by single fungal elicitors.
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Affiliation(s)
- Filippo Binci
- Department of Biology, University of Padova, 35131 Padova, Italy
| | - Elisabetta Offer
- Department of Biology, University of Padova, 35131 Padova, Italy
| | - Andrea Crosino
- Department of Life Sciences and Systems Biology, University of Torino, 10125 Torino, Italy
| | - Ivan Sciascia
- Department of Life Sciences and Systems Biology, University of Torino, 10125 Torino, Italy
| | - Jürgen Kleine-Vehn
- Centre for Integrative Biological Signalling Studies (CIBSS), University of Freiburg, 79104 Freiburg, Germany
- Institute of Biology II, Department of Molecular Plant Physiology (MoPP), University of Freiburg, 79104 Freiburg, Germany
| | - Andrea Genre
- Department of Life Sciences and Systems Biology, University of Torino, 10125 Torino, Italy
| | - Marco Giovannetti
- Department of Biology, University of Padova, 35131 Padova, Italy
- Department of Life Sciences and Systems Biology, University of Torino, 10125 Torino, Italy
| | - Lorella Navazio
- Department of Biology, University of Padova, 35131 Padova, Italy
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8
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Shi L, Zhao Z, Yang L, Ding G, Xing X. Bioactive steroids from seed germination supporting fungus ( Ceratobasidium GS2) of the terrestrial orchid Gymnadenia conopsea. Mycology 2024; 14:371-380. [PMID: 38187881 PMCID: PMC10769133 DOI: 10.1080/21501203.2023.2254893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/30/2023] [Indexed: 01/09/2024] Open
Abstract
Almost all orchids rely on mycorrhizal fungus to support their seed germination. To date, the effect of active components in mycorrhizal fungus on orchid seed germination largely remains unknown. In this study, we aimed to investigate the impact of active components found in mycorrhizal fungus on orchid seed germination. Specifically, we focused on a terrestrial orchid Gymnadenia conopsea and its host-specific seed germination supporting fungus Ceratobasidium GS2. In total, several steroids (1-7) were isolated from this fungus. Notably, compounds 1, 2, 4, and 5 exhibited significant enhancements in protocorm volume. Moreover, compounds 1-6 demonstrated strong promotion of protocorm differentiation. These findings suggest that steroids may play a crucial role in the symbiotic germination of G. conopsea seeds. Future studies should continue to explore the specific mechanisms through which these steroids exert their effects, contributing to our understanding of orchid biology and mycorrhizal interaction.
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Affiliation(s)
- Lixin Shi
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zeyu Zhao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Luna Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Gang Ding
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoke Xing
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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9
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Singh J, Isidra-Arellano MC, Valdés-López O. Harnessing the Potential of Symbiotic Associations of Plants in Phosphate-Deficient Soil for Sustainable Agriculture. PLANT & CELL PHYSIOLOGY 2023; 64:850-857. [PMID: 37300552 DOI: 10.1093/pcp/pcad059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023]
Abstract
Many plants associate with arbuscular mycorrhizal (AM) fungi for nutrient acquisition, and most legumes also associate with nitrogen-fixing rhizobial bacteria for nitrogen acquisition. The association of plants with AM fungi and rhizobia depends on the perception of lipo-chitooligosaccharides (LCOs) produced by these micro-symbionts. Recent studies reveal that cereals can perceive LCOs better in soil deprived of phosphate (Pi) and nitrogen to activate symbiosis signaling and form efficient AM symbiosis. Nevertheless, the Pi deficiency in the soil hinders the symbiotic association of legumes with rhizobia, ultimately reducing nitrogen fixation. Here, we discuss a mechanistic overview of the factors regulating root nodule symbiosis under Pi-deficient conditions and further emphasize the possible ways to overcome this hurdle. Ignoring the low Pi problem not only can compromise the functionality of the nitrogen cycle by nitrogen fixation through legumes but can also put food security at risk globally. This review aims to bring the scientific community's attention toward the detrimental response of legumes toward Pi-deficient soil for the formation of root nodule symbiosis and hence reduced nitrogen fixation. In this review, we have highlighted the recent studies that have advanced our understanding of these critical areas and discussed some future directions. Furthermore, this review highlights the importance of communicating science with farmers and the agriculture community to fully harness the potential of the symbiotic association of plants in nutrient-deficient soil for sustainable agriculture.
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Affiliation(s)
- Jawahar Singh
- Laboratorio de Genómica Funcional de Leguminosas, Facultad de Estudios Superiores Iztacala, Department of Biology, Universidad Nacional Autónoma de México, Tlalnepantla 54090, México
| | - Mariel C Isidra-Arellano
- Royal Botanic Gardens, Kew, Department of Trait Diversity and Function, Richmond, Surrey TW9 3AE, UK
| | - Oswaldo Valdés-López
- Laboratorio de Genómica Funcional de Leguminosas, Facultad de Estudios Superiores Iztacala, Department of Biology, Universidad Nacional Autónoma de México, Tlalnepantla 54090, México
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10
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Yu TY, Gao TY, Li WJ, Cui DL. "Single-pole dual-control" competing mode in plants. FRONTIERS IN PLANT SCIENCE 2023; 14:1149522. [PMID: 37457334 PMCID: PMC10348426 DOI: 10.3389/fpls.2023.1149522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023]
Abstract
Plant development and pattern formation depend on diffusible signals and location cues. These developmental signals and cues activate intracellular downstream components through cell surface receptors that direct cells to adopt specific fates for optimal function and establish biological fitness. There may be a single-pole dual-control competing mode in controlling plant development and microbial infection. In plant development, paracrine signaling molecules compete with autocrine signaling molecules to bind receptors or receptor complexes, turn on antagonistic molecular mechanisms, and precisely regulate developmental processes. In the process of microbial infection, two different signaling molecules, competing receptors or receptor complexes, form their respective signaling complexes, trigger opposite signaling pathways, establish symbiosis or immunity, and achieve biological adaptation. We reviewed several "single-pole dual-control" competing modes, focusing on analyzing the competitive commonality and characterization of "single-pole dual-control" molecular mechanisms. We suggest it might be an economical protective mechanism for plants' sequentially and iteratively programmed developmental events. This mechanism may also be a paradigm for reducing internal friction in the struggle and coexistence with microbes. It provides extraordinary insights into molecular recognition, cell-to-cell communication, and protein-protein interactions. A detailed understanding of the "single-pole dual-control" competing mode will contribute to the discovery of more receptors or antagonistic peptides, and lay the foundation for food, biofuel production, and crop improvement.
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11
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Volpe V, Chialva M, Mazzarella T, Crosino A, Capitanio S, Costamagna L, Kohlen W, Genre A. Long-lasting impact of chitooligosaccharide application on strigolactone biosynthesis and fungal accommodation promotes arbuscular mycorrhiza in Medicago truncatula. THE NEW PHYTOLOGIST 2023; 237:2316-2331. [PMID: 36564991 DOI: 10.1111/nph.18697] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
The establishment of arbuscular mycorrhiza (AM) between plants and Glomeromycotina fungi is preceded by the exchange of chemical signals: fungal released Myc-factors, including chitooligosaccharides (CO) and lipo-chitooligosaccharides (LCO), activate plant symbiotic responses, while root-exuded strigolactones stimulate hyphal branching and boost CO release. Furthermore, fungal signaling reinforcement through CO application was shown to promote AM development in Medicago truncatula, but the cellular and molecular bases of this effect remained unclear. Here, we focused on long-term M. truncatula responses to CO treatment, demonstrating its impact on the transcriptome of both mycorrhizal and nonmycorrhizal roots over several weeks and providing an insight into the mechanistic bases of the CO-dependent promotion of AM colonization. CO treatment caused the long-lasting regulation of strigolactone biosynthesis and fungal accommodation-related genes. This was mirrored by an increase in root didehydro-orobanchol content, and the promotion of accommodation responses to AM fungi in root epidermal cells. Lastly, an advanced downregulation of AM symbiosis marker genes was observed at the latest time point in CO-treated plants, in line with an increased number of senescent arbuscules. Overall, CO treatment triggered molecular, metabolic, and cellular responses underpinning a protracted acceleration of AM development.
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Affiliation(s)
- Veronica Volpe
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Matteo Chialva
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Teresa Mazzarella
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Andrea Crosino
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Serena Capitanio
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Lorenzo Costamagna
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
| | - Wouter Kohlen
- Laboratory of Molecular Biology, Wageningen University & Research, Wageningen, 6708, PB, the Netherlands
| | - Andrea Genre
- Department of Life Sciences and Systems Biology, University of Turin, Viale Mattioli 25, 10125, Torino, Italy
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12
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Lace B, Su C, Invernot Perez D, Rodriguez-Franco M, Vernié T, Batzenschlager M, Egli S, Liu CW, Ott T. RPG acts as a central determinant for infectosome formation and cellular polarization during intracellular rhizobial infections. eLife 2023; 12:80741. [PMID: 36856086 PMCID: PMC9991063 DOI: 10.7554/elife.80741] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
Host-controlled intracellular accommodation of nitrogen-fixing bacteria is essential for the establishment of a functional Root Nodule Symbiosis (RNS). In many host plants, this occurs via transcellular tubular structures (infection threads - ITs) that extend across cell layers via polar tip-growth. Comparative phylogenomic studies have identified RPG (RHIZOBIUM-DIRECTED POLAR GROWTH) among the critical genetic determinants for bacterial infection. In Medicago truncatula, RPG is required for effective IT progression within root hairs but the cellular and molecular function of the encoded protein remains elusive. Here, we show that RPG resides in the protein complex formed by the core endosymbiotic components VAPYRIN (VPY) and LUMPY INFECTION (LIN) required for IT polar growth, co-localizes with both VPY and LIN in IT tip- and perinuclear-associated puncta of M. truncatula root hairs undergoing infection and is necessary for VPY recruitment into these structures. Fluorescence Lifetime Imaging Microscopy (FLIM) of phosphoinositide species during bacterial infection revealed that functional RPG is required to sustain strong membrane polarization at the advancing tip of the IT. In addition, loss of RPG functionality alters the cytoskeleton-mediated connectivity between the IT tip and the nucleus and affects the polar secretion of the cell wall modifying enzyme NODULE PECTATE LYASE (NPL). Our results integrate RPG into a core host machinery required to support symbiont accommodation, suggesting that its occurrence in plant host genomes is essential to co-opt a multimeric protein module committed to endosymbiosis to sustain IT-mediated bacterial infection.
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Affiliation(s)
- Beatrice Lace
- University of Freiburg, Faculty of BiologyFreiburgGermany
| | - Chao Su
- University of Freiburg, Faculty of BiologyFreiburgGermany
| | | | | | - Tatiana Vernié
- LRSV, Université de Toulouse, CNRS, UPS, INP ToulouseCastanet-TolosanFrance
| | | | - Sabrina Egli
- University of Freiburg, Faculty of BiologyFreiburgGermany
| | - Cheng-Wu Liu
- School of Life Sciences, Division of Life Sciences and Medicine, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, University of Science and Technology of ChinaHefeiChina
| | - Thomas Ott
- University of Freiburg, Faculty of BiologyFreiburgGermany
- CIBSS – Centre of Integrative Biological Signalling Studies, University of FreiburgFreiburgGermany
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13
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Mirjani L, Salimi A, Shahbazi M, Hajirezaei MR, Matinizadeh M, Razavi K, Hesamzadeh Hejazi SM. Arbuscular mycorrhizal colonization leads to a change of hormone profile in micropropagated plantlet Satureja khuzistanica Jam. JOURNAL OF PLANT PHYSIOLOGY 2023; 280:153879. [PMID: 36516535 DOI: 10.1016/j.jplph.2022.153879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/08/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Phytohormones are supposed to contribute to the establishment of mutualistic Arbuscular mycorrhiza (AM) symbioses. However, their role in the acclimation of micropropagated plantlet inoculated with AM is still unknown. To address this question, we performed a hormone profiling during the acclimation of Satureja khuzistanica plantlets inoculated with Rhizoglomus fasciculatum. The levels of indoleacetic acid (IAA), methyl indole acetic acid, cis-zeatin, cis zeatin ribose, jasmonate, jasmonoyl isoleucine, salicylic acid, abscisic acid (ABA) were analyzed. Further, the relative gene expression of AOS (Allene oxide synthase) as a key enzyme of jasmonate biosynthesis, in either inoculated or non-inoculated micropropagated plantlets was evaluated during acclimation period. The concentrations of IAA and cis-zeatin increased in the plantlets inoculated by AM whereas the concentration of ABA decreased upon 60 days acclimation in the whole shoot of plantlets of S. khuzistanica. The relative expression of AOS gene resulted in an increase of isoleucine jasmonate, the bioactive form of jasmonate. Based on our results, IAA and cis-zeatin probably contribute to maintaining growth, and AM reduces transition stress by modifying ABA and jasmonate concentrations.
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Affiliation(s)
- Leila Mirjani
- Research Institutes of Forests and Rangelands, Department of Biotechnology, Education and Extension Organization (AREEO), 13185-116, Tehran, Iran; Kharazmi University, Department of Plant Sciences, Faculty of Biological Sciences, 15719-14911, Tehran, Iran.
| | - Azam Salimi
- Kharazmi University, Department of Plant Sciences, Faculty of Biological Sciences, 15719-14911, Tehran, Iran.
| | - Maryam Shahbazi
- Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran; Agricultural Biotechnology Research Institute of Iran (ABRII), Molecular Physiology Department, Education and Extension Organization (AREEO), 3135933151, Karaj, Iran.
| | - Mohammad-Reza Hajirezaei
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Molecular Plant Nutrition, OT Gatersleben, Corrensstrasse 3, Germany.
| | - Mohammad Matinizadeh
- Research Institutes of Forests and Rangelands, Forest Research Department, Education and Extension Organization (AREEO), 13185-116, Tehran, Iran.
| | - Khadijeh Razavi
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Department of Plant Biotechnology, 14155-6343, Tehran, Iran.
| | - Seyed Mohsen Hesamzadeh Hejazi
- Research Institutes of Forests and Rangelands, Department of Biotechnology, Education and Extension Organization (AREEO), 13185-116, Tehran, Iran.
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14
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Xu L, Wang J, Xiao Y, Han Z, Chai J. Structural insight into chitin perception by chitin elicitor receptor kinase 1 of Oryza sativa. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:235-248. [PMID: 35568972 DOI: 10.1111/jipb.13279] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
Plants have developed innate immune systems to fight against pathogenic fungi by monitoring pathogenic signals known as pathogen-associated molecular patterns (PAMP) and have established endo symbiosis with arbuscular mycorrhizal (AM) fungi through recognition of mycorrhizal (Myc) factors. Chitin elicitor receptor kinase 1 of Oryza sativa subsp. Japonica (OsCERK1) plays a bifunctional role in mediating both chitin-triggered immunity and symbiotic relationships with AM fungi. However, it remains unclear whether OsCERK1 can directly recognize chitin molecules. In this study, we show that OsCERK1 binds to the chitin hexamer ((NAG)6 ) and tetramer ((NAG)4 ) directly and determine the crystal structure of the OsCERK1-(NAG)6 complex at 2 Å. The structure shows that one OsCERK1 is associated with one (NAG)6 . Upon recognition, chitin hexamer binds OsCERK1 by interacting with the shallow groove on the surface of LysM2. These structural findings, complemented by mutational analyses, demonstrate that LysM2 is crucial for recognition of both (NAG)6 and (NAG)4 . Altogether, these findings provide structural insights into the ability of OsCERK1 in chitin perception, which will lead to a better understanding of the role of OsCERK1 in mediating both immunity and symbiosis in rice.
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Affiliation(s)
- Li Xu
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Centre for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Jizong Wang
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Centre for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yu Xiao
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Centre for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Zhifu Han
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Centre for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Jijie Chai
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Centre for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
- Max Planck Institute for Plant Breeding Research, Cologne, 50829, Germany
- Institute of Biochemistry, University of Cologne, Cologne, 50674, Germany
- Cluster of Excellence in Plant Sciences (CEPLAS), Düsseldorf, 40225, Germany
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15
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Giraldo JD, Garrido-Miranda KA, Schoebitz M. Chitin and its derivatives: Functional biopolymers for developing bioproducts for sustainable agriculture-A reality? Carbohydr Polym 2023; 299:120196. [PMID: 36876809 DOI: 10.1016/j.carbpol.2022.120196] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/01/2022] [Accepted: 10/03/2022] [Indexed: 11/07/2022]
Abstract
Chitinous materials (chitin and its derivatives) are obtained from renewable sources, mainly shellfish waste, having a great potential for the development of bioproducts as alternatives to synthetic agrochemicals. Recent studies have provided evidence that the use of these biopolymers can help control postharvest diseases, increase the content of nutrients available to plants, and elicit positive metabolic changes that lead to higher plant resistance against pathogens. However, agrochemicals are still widely and intensively used in agriculture. This perspective addresses the gap in knowledge and innovation to make bioproducts based on chitinous materials more competitive in the market. It also provides the readers with background to understand why these products are scarcely used and the aspects that need to be considered to increase their use. Finally, information on the development and commercialization of agricultural bioproducts containing chitin or its derivatives in the Chilean market is also provided.
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Affiliation(s)
- Juan D Giraldo
- Escuela de Ingeniería Ambiental, Instituto de Acuicultura, Universidad Austral de Chile, Sede Puerto Montt, Balneario Pelluco, Los Pinos s/n, Chile.
| | - Karla A Garrido-Miranda
- Center of Waste Management and Bioenergy, Scientific and Technological Bioresource Nucleus, BIOREN-UFRO, Universidad de la Frontera, P.O. Box 54-D, Temuco, Chile; Agriaquaculture Nutritional Genomic Center (CGNA), Temuco 4780000, Chile.
| | - Mauricio Schoebitz
- Departamento de Suelos y Recursos Naturales, Facultad de Agronomía, Campus Concepción, Casilla 160-C, Universidad de Concepción, Chile; Laboratory of Biofilms and Environmental Microbiology, Center of Biotechnology, University of Concepción, Barrio Universitario s/n, Concepción, Chile.
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16
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Cope KR, Prates ET, Miller JI, Demerdash ON, Shah M, Kainer D, Cliff A, Sullivan KA, Cashman M, Lane M, Matthiadis A, Labbé J, Tschaplinski TJ, Jacobson DA, Kalluri UC. Exploring the role of plant lysin motif receptor-like kinases in regulating plant-microbe interactions in the bioenergy crop Populus. Comput Struct Biotechnol J 2022; 21:1122-1139. [PMID: 36789259 PMCID: PMC9900275 DOI: 10.1016/j.csbj.2022.12.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 12/18/2022] [Accepted: 12/30/2022] [Indexed: 01/02/2023] Open
Abstract
For plants, distinguishing between mutualistic and pathogenic microbes is a matter of survival. All microbes contain microbe-associated molecular patterns (MAMPs) that are perceived by plant pattern recognition receptors (PRRs). Lysin motif receptor-like kinases (LysM-RLKs) are PRRs attuned for binding and triggering a response to specific MAMPs, including chitin oligomers (COs) in fungi, lipo-chitooligosaccharides (LCOs), which are produced by mycorrhizal fungi and nitrogen-fixing rhizobial bacteria, and peptidoglycan in bacteria. The identification and characterization of LysM-RLKs in candidate bioenergy crops including Populus are limited compared to other model plant species, thus inhibiting our ability to both understand and engineer microbe-mediated gains in plant productivity. As such, we performed a sequence analysis of LysM-RLKs in the Populus genome and predicted their function based on phylogenetic analysis with known LysM-RLKs. Then, using predictive models, molecular dynamics simulations, and comparative structural analysis with previously characterized CO and LCO plant receptors, we identified probable ligand-binding sites in Populus LysM-RLKs. Using several machine learning models, we predicted remarkably consistent binding affinity rankings of Populus proteins to CO. In addition, we used a modified Random Walk with Restart network-topology based approach to identify a subset of Populus LysM-RLKs that are functionally related and propose a corresponding signal transduction cascade. Our findings provide the first look into the role of LysM-RLKs in Populus-microbe interactions and establish a crucial jumping-off point for future research efforts to understand specificity and redundancy in microbial perception mechanisms.
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Affiliation(s)
- Kevin R. Cope
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Erica T. Prates
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - John I. Miller
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Omar N.A. Demerdash
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Manesh Shah
- Genome Science and Technology, The University of Tennessee–Knoxville, Knoxville, TN 37996, USA
| | - David Kainer
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Ashley Cliff
- The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee Knoxville, Knoxville 37996, USA
| | - Kyle A. Sullivan
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Mikaela Cashman
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Matthew Lane
- The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee Knoxville, Knoxville 37996, USA
| | - Anna Matthiadis
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Jesse Labbé
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | | | - Daniel A. Jacobson
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA,The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee Knoxville, Knoxville 37996, USA
| | - Udaya C. Kalluri
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA,Corresponding author.
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17
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Kawa D, Brady SM. Root cell types as an interface for biotic interactions. TRENDS IN PLANT SCIENCE 2022; 27:1173-1186. [PMID: 35792025 DOI: 10.1016/j.tplants.2022.06.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/04/2022] [Accepted: 06/09/2022] [Indexed: 05/27/2023]
Abstract
Root responses to environmental stresses show a high level of cell type and developmental stage specificity. Interactions with beneficial and pathogenic organisms - including microbes and parasites - elicit a set of transcriptional responses unique to each root cell type, often dependent on their differentiation state. Localized changes to the cell wall and to the integrity of root cell types can serve as a physical barrier for a range of pests. Conversely, certain microorganisms weaken existing barriers within root cell types. Interactions with microorganisms vary between roots of different developmental origins and cellular architectures. Here we provide an overview of the molecular, architectural, and structural properties of root cell types crucial to both maintaining beneficial interactions and protecting from pathogens.
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Affiliation(s)
- Dorota Kawa
- Department of Plant Biology and Genome Center, University of California, Davis, CA 95616, USA.
| | - Siobhan M Brady
- Department of Plant Biology and Genome Center, University of California, Davis, CA 95616, USA.
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18
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Li XR, Sun J, Albinsky D, Zarrabian D, Hull R, Lee T, Jarratt-Barnham E, Chiu CH, Jacobsen A, Soumpourou E, Albanese A, Kohlen W, Luginbuehl LH, Guillotin B, Lawrensen T, Lin H, Murray J, Wallington E, Harwood W, Choi J, Paszkowski U, Oldroyd GED. Nutrient regulation of lipochitooligosaccharide recognition in plants via NSP1 and NSP2. Nat Commun 2022; 13:6421. [PMID: 36307431 PMCID: PMC9616857 DOI: 10.1038/s41467-022-33908-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 10/07/2022] [Indexed: 12/25/2022] Open
Abstract
Many plants associate with arbuscular mycorrhizal fungi for nutrient acquisition, while legumes also associate with nitrogen-fixing rhizobial bacteria. Both associations rely on symbiosis signaling and here we show that cereals can perceive lipochitooligosaccharides (LCOs) for activation of symbiosis signaling, surprisingly including Nod factors produced by nitrogen-fixing bacteria. However, legumes show stringent perception of specifically decorated LCOs, that is absent in cereals. LCO perception in plants is activated by nutrient starvation, through transcriptional regulation of Nodulation Signaling Pathway (NSP)1 and NSP2. These transcription factors induce expression of an LCO receptor and act through the control of strigolactone biosynthesis and the karrikin-like receptor DWARF14-LIKE. We conclude that LCO production and perception is coordinately regulated by nutrient starvation to promote engagement with mycorrhizal fungi. Our work has implications for the use of both mycorrhizal and rhizobial associations for sustainable productivity in cereals.
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Affiliation(s)
- Xin-Ran Li
- grid.5335.00000000121885934Sainsbury Laboratory, University of Cambridge, 47 Bateman Street, Cambridge, CB2 1LR UK
| | - Jongho Sun
- grid.5335.00000000121885934Sainsbury Laboratory, University of Cambridge, 47 Bateman Street, Cambridge, CB2 1LR UK
| | - Doris Albinsky
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Darius Zarrabian
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Raphaella Hull
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Tak Lee
- grid.5335.00000000121885934Sainsbury Laboratory, University of Cambridge, 47 Bateman Street, Cambridge, CB2 1LR UK ,grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Edwin Jarratt-Barnham
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Chai Hao Chiu
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Amy Jacobsen
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Eleni Soumpourou
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Alessio Albanese
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Wouter Kohlen
- grid.4818.50000 0001 0791 5666Laboratory for Molecular Biology, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, the Netherlands
| | - Leonie H. Luginbuehl
- grid.14830.3e0000 0001 2175 7246John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Bruno Guillotin
- grid.503344.50000 0004 0445 6769Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France ,grid.137628.90000 0004 1936 8753Present Address: NYU-Center of Genomic and System Biology, 12 Waverly Place, New York, NY USA
| | - Tom Lawrensen
- grid.14830.3e0000 0001 2175 7246John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Hui Lin
- grid.14830.3e0000 0001 2175 7246John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Jeremy Murray
- grid.14830.3e0000 0001 2175 7246John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Emma Wallington
- grid.17595.3f0000 0004 0383 6532NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Wendy Harwood
- grid.14830.3e0000 0001 2175 7246John Innes Centre, Norwich Research Park, Norwich, NR4 7UH UK
| | - Jeongmin Choi
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Uta Paszkowski
- grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
| | - Giles E. D. Oldroyd
- grid.5335.00000000121885934Sainsbury Laboratory, University of Cambridge, 47 Bateman Street, Cambridge, CB2 1LR UK ,grid.5335.00000000121885934Crop Science Centre, University of Cambridge, 93 Lawrence Weaver Road, Cambridge, CB3 0LE UK
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19
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Irving TB, Chakraborty S, Maia LGS, Knaack S, Conde D, Schmidt HW, Triozzi PM, Simmons CH, Roy S, Kirst M, Ané JM. An LCO-responsive homolog of NODULE INCEPTION positively regulates lateral root formation in Populus sp. PLANT PHYSIOLOGY 2022; 190:1699-1714. [PMID: 35929094 PMCID: PMC9614479 DOI: 10.1093/plphys/kiac356] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
The transcription factor NODULE INCEPTION (NIN) has been studied extensively for its multiple roles in root nodule symbiosis within plants of the nitrogen-fixing clade (NFC) that associate with soil bacteria, such as rhizobia and Frankia. However, NIN homologs are present in plants outside the NFC, suggesting a role in other developmental processes. Here, we show that the biofuel crop Populus sp., which is not part of the NFC, contains eight copies of NIN with diversified protein sequence and expression patterns. Lipo-chitooligosaccharides (LCOs) are produced by rhizobia and a wide range of fungi, including mycorrhizal ones, and act as symbiotic signals that promote lateral root formation. RNAseq analysis of Populus sp. treated with purified LCO showed induction of the PtNIN2 subfamily. Moreover, the expression of PtNIN2b correlated with the formation of lateral roots and was suppressed by cytokinin treatment. Constitutive expression of PtNIN2b overcame the inhibition of lateral root development by cytokinin under high nitrate conditions. Lateral root induction in response to LCOs likely represents an ancestral function of NIN retained and repurposed in nodulating plants, as we demonstrate that the role of NIN in LCO-induced root branching is conserved in both Populus sp. and legumes. We further established a visual marker of LCO perception in Populus sp. roots, the putative sulfotransferase PtSS1 that can be used to study symbiotic interactions with the bacterial and fungal symbionts of Populus sp.
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Affiliation(s)
| | | | - Lucas Gontijo Silva Maia
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706, USA
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - Sara Knaack
- Department of Biostatistics and Medical Informatics, University of Wisconsin, Madison, Wisconsin 53715, USA
| | - Daniel Conde
- School of Forest, Fisheries and Geomatics Sciences, University of Florida, Gainesville, Florida 32611, USA
| | - Henry W Schmidt
- School of Forest, Fisheries and Geomatics Sciences, University of Florida, Gainesville, Florida 32611, USA
| | - Paolo M Triozzi
- School of Forest, Fisheries and Geomatics Sciences, University of Florida, Gainesville, Florida 32611, USA
| | - Carl H Simmons
- Laboratory of Genetics, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - Sushmita Roy
- Department of Biostatistics and Medical Informatics, University of Wisconsin, Madison, Wisconsin 53715, USA
| | - Matias Kirst
- School of Forest, Fisheries and Geomatics Sciences, University of Florida, Gainesville, Florida 32611, USA
- Genetics Institute, University of Florida, Gainesville, Florida 32611, USA
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20
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Huang R, Li Z, Shen X, Choi J, Cao Y. The Perspective of Arbuscular Mycorrhizal Symbiosis in Rice Domestication and Breeding. Int J Mol Sci 2022; 23:ijms232012383. [PMID: 36293238 PMCID: PMC9604486 DOI: 10.3390/ijms232012383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 11/21/2022] Open
Abstract
In nature, symbiosis with arbuscular mycorrhizal (AM) fungi contributes to sustainable acquisition of phosphorus and other elements in over 80% of plant species; improving interactions with AM symbionts may mitigate some of the environmental problems associated with fertilizer application in grain crops such as rice. Recent developments of high-throughput genome sequencing projects of thousands of rice cultivars and the discovery of the molecular mechanisms underlying AM symbiosis suggest that interactions with AM fungi might have been an overlooked critical trait in rice domestication and breeding. In this review, we discuss genetic variation in the ability of rice to form AM symbioses and how this might have affected rice domestication. Finally, we discuss potential applications of AM symbiosis in rice breeding for more sustainable agriculture.
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Affiliation(s)
- Renliang Huang
- National Engineering Research Center of Rice (Nanchang), Key Laboratory of Rice Physiology and Genetics of Jiangxi Province, Rice Research Institute, Jiangxi Academy of Agriculture Science, Nanchang 330200, China
| | - Zheng Li
- State Key Laboratory of Agriculture Microbiology, Hubei Hongshan Laboratory, Huazhong Agriculture University, Wuhan 430000, China
| | - Xianhua Shen
- National Engineering Research Center of Rice (Nanchang), Key Laboratory of Rice Physiology and Genetics of Jiangxi Province, Rice Research Institute, Jiangxi Academy of Agriculture Science, Nanchang 330200, China
| | - Jeongmin Choi
- Crop Science Centre, Department of Plant Sciences, University of Cambridge, Lawrence Weaver Road, Cambridge CB3 0LE, UK
| | - Yangrong Cao
- State Key Laboratory of Agriculture Microbiology, Hubei Hongshan Laboratory, Huazhong Agriculture University, Wuhan 430000, China
- Correspondence:
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21
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Chiu CH, Roszak P, Orvošová M, Paszkowski U. Arbuscular mycorrhizal fungi induce lateral root development in angiosperms via a conserved set of MAMP receptors. Curr Biol 2022; 32:4428-4437.e3. [PMID: 36115339 DOI: 10.1016/j.cub.2022.08.069] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 05/06/2022] [Accepted: 08/23/2022] [Indexed: 10/14/2022]
Abstract
Root systems regulate their branching patterns in response to environmental stimuli. Lateral root development in both monocotyledons and dicotyledons is enhanced in response to inoculation with arbuscular mycorrhizal (AM) fungi, which has been interpreted as a developmental response to specific, symbiosis-activating chitinaceous signals. Here, we report that generic instead of symbiosis-specific, chitin-derived molecules trigger lateral root formation. We demonstrate that this developmental response requires the well-known microbe-associated molecular pattern (MAMP) receptor, ChitinElicitorReceptorKinase 1 (CERK1), in rice, Medicago truncatula, and Lotus japonicus, as well as the non-host of AM fungi, Arabidopsis thaliana, lending further support for a broadly conserved signal transduction mechanism across angiosperms. Using rice mutants impaired in strigolactone biosynthesis and signaling, we show that strigolactone signaling is necessary to regulate this developmental response. Rice CERK1 operates together with either Chitin Elicitor Binding Protein (CEBiP) or Nod Factor Receptor 5 (NFR5) in immunity and symbiosis signaling, respectively; for the lateral root response, however, all three LysM receptors are required. Our work, therefore, reveals an overlooked but a conserved role of LysM receptors integrating MAMP perception with developmental responses in plants, an ability that might influence the interaction between roots and the rhizosphere biota.
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Affiliation(s)
- Chai Hao Chiu
- Crop Science Centre, Department of Plant Sciences, University of Cambridge, 93 Lawrence Weaver Road, Cambridge CB3 0LE, UK.
| | - Pawel Roszak
- Sainsbury Laboratory, University of Cambridge, Bateman Street, Cambridge CB2 1LR, UK
| | - Martina Orvošová
- Crop Science Centre, Department of Plant Sciences, University of Cambridge, 93 Lawrence Weaver Road, Cambridge CB3 0LE, UK
| | - Uta Paszkowski
- Crop Science Centre, Department of Plant Sciences, University of Cambridge, 93 Lawrence Weaver Road, Cambridge CB3 0LE, UK.
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22
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Molecular Regulation of Arbuscular Mycorrhizal Symbiosis. Int J Mol Sci 2022; 23:ijms23115960. [PMID: 35682640 PMCID: PMC9180548 DOI: 10.3390/ijms23115960] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/20/2022] [Accepted: 05/23/2022] [Indexed: 02/07/2023] Open
Abstract
Plant-microorganism interactions at the rhizosphere level have a major impact on plant growth and plant tolerance and/or resistance to biotic and abiotic stresses. Of particular importance for forestry and agricultural systems is the cooperative and mutualistic interaction between plant roots and arbuscular mycorrhizal (AM) fungi from the phylum Glomeromycotina, since about 80% of terrestrial plant species can form AM symbiosis. The interaction is tightly regulated by both partners at the cellular, molecular and genetic levels, and it is highly dependent on environmental and biological variables. Recent studies have shown how fungal signals and their corresponding host plant receptor-mediated signalling regulate AM symbiosis. Host-generated symbiotic responses have been characterized and the molecular mechanisms enabling the regulation of fungal colonization and symbiosis functionality have been investigated. This review summarizes these and other recent relevant findings focusing on the molecular players and the signalling that regulate AM symbiosis. Future progress and knowledge about the underlying mechanisms for AM symbiosis regulation will be useful to facilitate agro-biotechnological procedures to improve AM colonization and/or efficiency.
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23
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Wang D, Dong W, Murray J, Wang E. Innovation and appropriation in mycorrhizal and rhizobial Symbioses. THE PLANT CELL 2022; 34:1573-1599. [PMID: 35157080 PMCID: PMC9048890 DOI: 10.1093/plcell/koac039] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 01/21/2022] [Indexed: 05/20/2023]
Abstract
Most land plants benefit from endosymbiotic interactions with mycorrhizal fungi, including legumes and some nonlegumes that also interact with endosymbiotic nitrogen (N)-fixing bacteria to form nodules. In addition to these helpful interactions, plants are continuously exposed to would-be pathogenic microbes: discriminating between friends and foes is a major determinant of plant survival. Recent breakthroughs have revealed how some key signals from pathogens and symbionts are distinguished. Once this checkpoint has been passed and a compatible symbiont is recognized, the plant coordinates the sequential development of two types of specialized structures in the host. The first serves to mediate infection, and the second, which appears later, serves as sophisticated intracellular nutrient exchange interfaces. The overlap in both the signaling pathways and downstream infection components of these symbioses reflects their evolutionary relatedness and the common requirements of these two interactions. However, the different outputs of the symbioses, phosphate uptake versus N fixation, require fundamentally different components and physical environments and necessitated the recruitment of different master regulators, NODULE INCEPTION-LIKE PROTEINS, and PHOSPHATE STARVATION RESPONSES, for nodulation and mycorrhization, respectively.
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Affiliation(s)
- Dapeng Wang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Wentao Dong
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | | | - Ertao Wang
- Authors for correspondence: (E.W) and (J.M.)
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24
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Guo R, Wu YN, Liu CC, Liu YN, Tian L, Cheng JF, Pan Z, Wang D, Wang B. OsADK1, a novel kinase regulating arbuscular mycorrhizal symbiosis in rice. THE NEW PHYTOLOGIST 2022; 234:256-268. [PMID: 35133010 DOI: 10.1111/nph.17979] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Arbuscular mycorrhizal (AM) symbiosis relies on the formation of arbuscules for efficient nutrient exchange between plants and AM fungi. In this study, we identified a novel kinase gene in rice named OsADK1 (Arbuscule Development Kinase 1) that is required for arbuscule development. By obtaining OsADK1pro::GUS transgenic rice plants and also generating Osadk1 mutants via CRISPR/Cas9 technique, OsADK1 was revealed to be specifically induced in the arbusculated cortical cells and mutations in OsADK1 resulted in an extremely low colonisation rate (c. 3%) of rice roots by AM fungus Rhizophagus irregularis. In the mutant roots, the very few observed arbuscules nearly all arrested at an early 'trunk-forming' phase without forming any branches. Increasing the inoculum strength of AM fungus or cocultivation with a wild-type nurse plant did not result in the rescue of the arbuscule phenotype. Transcriptome sequencing of both nursed and un-nursed Osadk1 mutants then revealed that the mutation of OsADK1 could greatly affect the AM symbiotic programme, including many key transcription factors such as RAM1 and WRI5. OsADK1 therefore represents a new rice kinase that is required for arbuscule branching. Its identification opens a new window to explore the elaborate signal transduction pathway that determines arbuscule development during plant-fungus symbiosis.
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Affiliation(s)
- Rui Guo
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Ya-Nan Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Cheng-Chen Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Ying-Na Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Li Tian
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Jian-Fei Cheng
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Zhiyong Pan
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Dong Wang
- Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA, 01003, USA
| | - Bin Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
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Liu YN, Liu CC, Zhu AQ, Niu KX, Guo R, Tian L, Wu YN, Sun B, Wang B. OsRAM2 Function in Lipid Biosynthesis Is Required for Arbuscular Mycorrhizal Symbiosis in Rice. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2022; 35:187-199. [PMID: 34077267 DOI: 10.1094/mpmi-04-21-0097-r] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Arbuscular mycorrhiza (AM) is a mutualistic symbiosis formed between most land plants and Glomeromycotina fungi. During symbiosis, plants provide organic carbon to fungi in exchange for mineral nutrients. Previous legume studies showed that the required for arbuscular mycorrhization2 (RAM2) gene is necessary for transferring lipids from plants to AM fungi (AMF) and is also likely to play a "signaling" role at the root surface. To further explore RAM2 functions in other plant lineages, in this study, two rice (Oryza sativa) genes, OsRAM2 and OsRAM2L, were identified as orthologs of legume RAM2. Examining their expression patterns during symbiosis revealed that only OsRAM2 was strongly upregulated upon AMF inoculation. CRISPR/Cas9 mutagenesis was then performed to obtain three Osram2 mutant lines (-1, -2, and -3). After inoculation by AMF Rhizophagus irregularis or Funneliformis mosseae, all of the mutant lines showed extremely low colonization rates and the rarely observed arbuscules were all defective, thus supporting a conserved "nutritional" role of RAM2 between monocot and dicot lineages. As for the signaling role, although the hyphopodia numbers formed by both AMF on Osram2 mutants were indeed reduced, their morphology showed no abnormality, with fungal hyphae invading roots successfully. Promoter activities further indicated that OsRAM2 was not expressed in epidermal cells below hyphopodia or outer cortical cells enclosing fungal hyphae but instead expressed exclusively in cortical cells containing arbuscules. Therefore, this suggested an indirect role of RAM2 rather than a direct involvement in determining the symbiosis signals at the root surface.[Formula: see text] The author(s) have dedicated the work to the public domain under the Creative Commons CC0 "No Rights Reserved" license by waiving all of his or her rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law, 2022.
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Affiliation(s)
- Ying-Na Liu
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Cheng-Chen Liu
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - An-Qi Zhu
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Ke-Xin Niu
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Rui Guo
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Li Tian
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Ya-Nan Wu
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Bo Sun
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Bin Wang
- School of Life Sciences, Nanjing University, Nanjing 210023, China
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26
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Kleist TJ, Bortolazzo A, Keyser ZP, Perera AM, Irving TB, Venkateshwaran M, Atanjaoui F, Tang RJ, Maeda J, Cartwright HN, Christianson ML, Lemaux PG, Luan S, Ané JM. Stress-associated developmental reprogramming in moss protonemata by synthetic activation of the common symbiosis pathway. iScience 2022; 25:103754. [PMID: 35146383 PMCID: PMC8819110 DOI: 10.1016/j.isci.2022.103754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 12/22/2021] [Accepted: 01/07/2022] [Indexed: 11/19/2022] Open
Abstract
Symbioses between angiosperms and rhizobia or arbuscular mycorrhizal fungi are controlled through a conserved signaling pathway. Microbe-derived, chitin-based elicitors activate plant cell surface receptors and trigger nuclear calcium oscillations, which are decoded by a calcium/calmodulin-dependent protein kinase (CCaMK) and its target transcription factor interacting protein of DMI3 (IPD3). Genes encoding CCaMK and IPD3 have been lost in multiple non-mycorrhizal plant lineages yet retained among non-mycorrhizal mosses. Here, we demonstrated that the moss Physcomitrium is equipped with a bona fide CCaMK that can functionally complement a Medicago loss-of-function mutant. Conservation of regulatory phosphosites allowed us to generate predicted hyperactive forms of Physcomitrium CCaMK and IPD3. Overexpression of synthetically activated CCaMK or IPD3 in Physcomitrium led to abscisic acid (ABA) accumulation and ectopic development of brood cells, which are asexual propagules that facilitate escape from local abiotic stresses. We therefore propose a functional role for Physcomitrium CCaMK-IPD3 in stress-associated developmental reprogramming.
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Affiliation(s)
- Thomas J. Kleist
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
- Department of Plant Biology, Carnegie Institute for Science, Stanford, CA 94305, USA
- Institute for Molecular Physiology, Department of Biology, Heinrich Heine University, Düsseldorf 40225, Germany
- Corresponding author
| | - Anthony Bortolazzo
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, WI 53706, USA
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Zachary P. Keyser
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Adele M. Perera
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Thomas B. Irving
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | | | - Fatiha Atanjaoui
- Institute for Molecular Physiology, Department of Biology, Heinrich Heine University, Düsseldorf 40225, Germany
| | - Ren-Jie Tang
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Junko Maeda
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Heather N. Cartwright
- Department of Plant Biology, Carnegie Institute for Science, Stanford, CA 94305, USA
| | - Michael L. Christianson
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Peggy G. Lemaux
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Sheng Luan
- Department of Plant & Microbial Biology, University of California-Berkeley, Berkeley, CA 94720, USA
| | - Jean-Michel Ané
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI 53706, USA
- Corresponding author
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27
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Villalobos Solis MI, Engle NL, Spangler MK, Cottaz S, Fort S, Maeda J, Ané JM, Tschaplinski TJ, Labbé JL, Hettich RL, Abraham PE, Rush TA. Expanding the Biological Role of Lipo-Chitooligosaccharides and Chitooligosaccharides in Laccaria bicolor Growth and Development. FRONTIERS IN FUNGAL BIOLOGY 2022; 3:808578. [PMID: 37746234 PMCID: PMC10512320 DOI: 10.3389/ffunb.2022.808578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/10/2022] [Indexed: 09/26/2023]
Abstract
The role of lipo-chitooligosaccharides (LCOs) as signaling molecules that mediate the establishment of symbiotic relationships between fungi and plants is being redefined. New evidence suggests that the production of these molecular signals may be more of a common trait in fungi than what was previously thought. LCOs affect different aspects of growth and development in fungi. For the ectomycorrhizal forming fungi, Laccaria bicolor, the production and effects of LCOs have always been studied with a symbiotic plant partner; however, there is still no scientific evidence describing the effects that these molecules have on this organism. Here, we explored the physiological, molecular, and metabolomic changes in L. bicolor when grown in the presence of exogenous sulfated and non-sulfated LCOs, as well as the chitooligomers, chitotetraose (CO4), and chitooctaose (CO8). Physiological data from 21 days post-induction showed reduced fungal growth in response to CO and LCO treatments compared to solvent controls. The underlying molecular changes were interrogated by proteomics, which revealed substantial alterations to biological processes related to growth and development. Moreover, metabolite data showed that LCOs and COs caused a downregulation of organic acids, sugars, and fatty acids. At the same time, exposure to LCOs resulted in the overproduction of lactic acid in L. bicolor. Altogether, these results suggest that these signals might be fungistatic compounds and contribute to current research efforts investigating the emerging impacts of these molecules on fungal growth and development.
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Affiliation(s)
| | - Nancy L. Engle
- Bioscience Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Margaret K. Spangler
- Bioscience Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
- Graduate School of Genome Science and Technology, University of Tennessee, Knoxville, Knoxville, TN, United States
| | - Sylvain Cottaz
- Université Grenoble Alpes, CNRS, CERMAV, Grenoble, France
| | - Sébastien Fort
- Université Grenoble Alpes, CNRS, CERMAV, Grenoble, France
| | - Junko Maeda
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, United States
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, United States
| | - Jean-Michel Ané
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, United States
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, United States
| | | | - Jesse L. Labbé
- Bioscience Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Robert L. Hettich
- Bioscience Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Paul E. Abraham
- Bioscience Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Tomás A. Rush
- Bioscience Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
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28
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Wu F, Gao Y, Yang W, Sui N, Zhu J. Biological Functions of Strigolactones and Their Crosstalk With Other Phytohormones. FRONTIERS IN PLANT SCIENCE 2022; 13:821563. [PMID: 35283865 PMCID: PMC8908206 DOI: 10.3389/fpls.2022.821563] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/24/2022] [Indexed: 05/10/2023]
Abstract
Phytohormones are small chemicals critical for plant development and adaptation to a changing environment. Strigolactones (SLs), carotenoid-derived small signalling molecules and a class of phytohormones, regulate multiple developmental processes and respond to diverse environmental signals. SLs also coordinate adjustments in the balance of resource distribution by strategic modification of the plant development, allowing plants to adapt to nutrient deficiency. Instead of operating independently, SL interplays with abscisic acid, cytokinin, auxin, ethylene, and some other plant phytohormones, forming elaborate signalling networks. Hormone signalling crosstalk in plant development and environmental response may occur in a fully concerted manner or as a cascade of sequential events. In many cases, the exact underlying mechanism is unclear because of the different effects of phytohormones and the varying backgrounds of their actions. In this review, we systematically summarise the synthesis, signal transduction, and biological functions of SLs and further highlight the significance of crosstalk between SLs and other phytohormones during plant development and resistance to ever-changing environments.
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29
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Khokhani D, Carrera Carriel C, Vayla S, Irving TB, Stonoha-Arther C, Keller NP, Ané JM. Deciphering the Chitin Code in Plant Symbiosis, Defense, and Microbial Networks. Annu Rev Microbiol 2021; 75:583-607. [PMID: 34623896 DOI: 10.1146/annurev-micro-051921-114809] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Chitin is a structural polymer in many eukaryotes. Many organisms can degrade chitin to defend against chitinous pathogens or use chitin oligomers as food. Beneficial microorganisms like nitrogen-fixing symbiotic rhizobia and mycorrhizal fungi produce chitin-based signal molecules called lipo-chitooligosaccharides (LCOs) and short chitin oligomers to initiate a symbiotic relationship with their compatible hosts and exchange nutrients. A recent study revealed that a broad range of fungi produce LCOs and chitooligosaccharides (COs), suggesting that these signaling molecules are not limited to beneficial microbes. The fungal LCOs also affect fungal growth and development, indicating that the roles of LCOs beyond symbiosis and LCO production may predate mycorrhizal symbiosis. This review describes the diverse structures of chitin; their perception by eukaryotes and prokaryotes; and their roles in symbiotic interactions, defense, and microbe-microbe interactions. We also discuss potential strategies of fungi to synthesize LCOs and their roles in fungi with different lifestyles.
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Affiliation(s)
- Devanshi Khokhani
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA; , , , , , .,Current affiliation: Department of Plant Pathology, University of Minnesota, Saint Paul, Minnesota 55108, USA;
| | - Cristobal Carrera Carriel
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA; , , , , ,
| | - Shivangi Vayla
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA; , , , , ,
| | - Thomas B Irving
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA; , , , , ,
| | - Christina Stonoha-Arther
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA; , , , , ,
| | - Nancy P Keller
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA; , , , , , .,Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Jean-Michel Ané
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA; , , , , , .,Department of Agronomy, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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30
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How membrane receptors tread the fine balance between symbiosis and immunity signaling. Proc Natl Acad Sci U S A 2021; 118:2106567118. [PMID: 34083375 PMCID: PMC8214661 DOI: 10.1073/pnas.2106567118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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31
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R. Cope K, B. Irving T, Chakraborty S, Ané JM. Perception of lipo-chitooligosaccharides by the bioenergy crop Populus. PLANT SIGNALING & BEHAVIOR 2021; 16:1903758. [PMID: 33794743 PMCID: PMC8143229 DOI: 10.1080/15592324.2021.1903758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
Populus sp. is a developing feedstock for second-generation biofuel production. To ensure its success as a sustainable biofuel source, it is essential to capitalize on the ability of Populus sp. to associate with beneficial plant-associated microbes (e.g., mycorrhizal fungi) and engineer Populus sp. to associate with non-native symbionts (e.g., rhizobia). Here, we review recent research into the molecular mechanisms that control ectomycorrhizal associations in Populus sp. with particular emphasis on the discovery that ectomycorrhizal fungi produce lipochitooligosaccharides capable of activating the common symbiosis pathway. We also present new evidence that lipo-chitooligosaccharides produced by both ectomycorrhizal fungi and various species of rhizobia that do not associate with Populus sp. can induce nuclear calcium spiking in the roots of Populus sp. Thus, we argue Populus sp. already possesses the molecular machinery necessary for perceiving rhizobia, and the next step in engineering symbiosis with rhizobia should be focused on inducing bacterial accommodation and nodule organogenesis. The gene Nodule INception is central to these processes, and several putative orthologs are present in Populus sp. Manipulating the promoters of these genes to match that of plants in the nitrogen-fixing clade may be sufficient to introduce nodulation in Populus sp.
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Affiliation(s)
- Kevin R. Cope
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin, WI,United States
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin, WI,United States
| | - Thomas B. Irving
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin, WI,United States
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin, WI,United States
| | - Sanhita Chakraborty
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin, WI,United States
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin, WI,United States
| | - Jean-Michel Ané
- Department of Bacteriology, University of Wisconsin, Madison, Wisconsin, WI,United States
- Department of Agronomy, University of Wisconsin, Madison, Wisconsin, WI,United States
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32
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Optimizing Chitin Depolymerization by Lysozyme to Long-Chain Oligosaccharides. Mar Drugs 2021; 19:md19060320. [PMID: 34072871 PMCID: PMC8229320 DOI: 10.3390/md19060320] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 01/17/2023] Open
Abstract
Chitin oligosaccharides (COs) hold high promise as organic fertilizers in the ongoing agro-ecological transition. Short- and long-chain COs can contribute to the establishment of symbiotic associations between plants and microorganisms, facilitating the uptake of soil nutrients by host plants. Long-chain COs trigger plant innate immunity. A fine investigation of these different signaling pathways requires improving the access to high-purity COs. Here, we used the response surface methodology to optimize the production of COs by enzymatic hydrolysis of water-soluble chitin (WSC) with hen egg-white lysozyme. The influence of WSC concentration, its acetylation degree, and the reaction time course were modelled using a Box–Behnken design. Under optimized conditions, water-soluble COs up to the nonasaccharide were formed in 51% yield and purified to homogeneity. This straightforward approach opens new avenues to determine the complex roles of COs in plants.
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33
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Bonhomme M, Bensmihen S, André O, Amblard E, Garcia M, Maillet F, Puech-Pagès V, Gough C, Fort S, Cottaz S, Bécard G, Jacquet C. Distinct genetic basis for root responses to lipo-chitooligosaccharide signal molecules from different microbial origins. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:3821-3834. [PMID: 33675231 DOI: 10.1093/jxb/erab096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/25/2021] [Indexed: 05/12/2023]
Abstract
Lipo-chitooligosaccharides (LCOs) were originally found as symbiotic signals called Nod Factors (Nod-LCOs) controlling the nodulation of legumes by rhizobia. More recently, LCOs were also found in symbiotic fungi and, more surprisingly, very widely in the kingdom Fungi, including in saprophytic and pathogenic fungi. The LCO-V(C18:1, fucosylated/methyl fucosylated), hereafter called Fung-LCOs, are the LCO structures most commonly found in fungi. This raises the question of how legume plants such as Medicago truncatula can discriminate between Nod-LCOs and Fung-LCOs. To address this question, we performed a genome-wide association study on 173 natural accessions of M. truncatula, using a root branching phenotype and a newly developed local score approach. Both Nod-LCOs and Fung-LCOs stimulated root branching in most accessions, but the root responses to these two types of LCO molecules were not correlated. In addition, the heritability of the root response was higher for Nod-LCOs than for Fung-LCOs. We identified 123 loci for Nod-LCO and 71 for Fung-LCO responses, of which only one was common. This suggests that Nod-LCOs and Fung-LCOs both control root branching but use different molecular mechanisms. The tighter genetic constraint of the root response to Fung-LCOs possibly reflects the ancestral origin of the biological activity of these molecules.
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Affiliation(s)
- Maxime Bonhomme
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Sandra Bensmihen
- LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France
| | - Olivier André
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Emilie Amblard
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Magali Garcia
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Fabienne Maillet
- LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France
| | - Virginie Puech-Pagès
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Clare Gough
- LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France
| | - Sébastien Fort
- Université Grenoble Alpes, CNRS, CERMAV, Grenoble, France
| | - Sylvain Cottaz
- Université Grenoble Alpes, CNRS, CERMAV, Grenoble, France
| | - Guillaume Bécard
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Christophe Jacquet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
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Tsiknia M, Tsikou D, Papadopoulou KK, Ehaliotis C. Multi-species relationships in legume roots: From pairwise legume-symbiont interactions to the plant - microbiome - soil continuum. FEMS Microbiol Ecol 2021; 97:5957530. [PMID: 33155054 DOI: 10.1093/femsec/fiaa222] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 11/03/2020] [Indexed: 01/02/2023] Open
Abstract
Mutualistic relationships of legume plants with, either bacteria (like rhizobia) or fungi (like arbuscular mycorrhizal fungi), have been investigated intensively, usually as bi-partite interactions. However, diverse symbiotic interactions take place simultaneously or sequentially under field conditions. Their collective, but not additive, contribution to plant growth and performance remains hard to predict, and appears to be furthermore affected by crop species and genotype, non-symbiotic microbial interactions and environmental variables. The challenge is: (i) to unravel the complex overlapping mechanisms that operate between the microbial symbionts as well as between them, their hosts and the rhizosphere (ii) to understand the dynamics of the respective mechanisms in evolutionary and ecological terms. The target for agriculture, food security and the environment, is to use this insight as a solid basis for developing new integrated technologies, practices and strategies for the efficient use of beneficial microbes in legumes and other plants. We review recent advances in our understanding of the symbiotic interactions in legumes roots brought about with the aid of molecular and bioinformatics tools. We go through single symbiont-host interactions, proceed to tripartite symbiont-host interactions, appraise interactions of symbiotic and associative microbiomes with plants in the root-rhizoplane-soil continuum of habitats and end up by examining attempts to validate community ecology principles in the legume-microbe-soil biosystem.
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Affiliation(s)
- Myrto Tsiknia
- Soils and Soil Chemistry Lab, Department of Natural Resources and Agricultural Engineering, Agricultural University of Athens, Iera Odos 75 st., Athens 11855, Greece
| | - Daniela Tsikou
- Laboratory of Plant and Environmental Biotechnology, Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Kalliope K Papadopoulou
- Laboratory of Plant and Environmental Biotechnology, Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Constantinos Ehaliotis
- Soils and Soil Chemistry Lab, Department of Natural Resources and Agricultural Engineering, Agricultural University of Athens, Iera Odos 75 st., Athens 11855, Greece
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Discriminating symbiosis and immunity signals by receptor competition in rice. Proc Natl Acad Sci U S A 2021; 118:2023738118. [PMID: 33853950 DOI: 10.1073/pnas.2023738118] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Plants encounter various microbes in nature and must respond appropriately to symbiotic or pathogenic ones. In rice, the receptor-like kinase OsCERK1 is involved in recognizing both symbiotic and immune signals. However, how these opposing signals are discerned via OsCERK1 remains unknown. Here, we found that receptor competition enables the discrimination of symbiosis and immunity signals in rice. On the one hand, the symbiotic receptor OsMYR1 and its short-length chitooligosaccharide ligand inhibit complex formation between OsCERK1 and OsCEBiP and suppress OsCERK1 phosphorylating the downstream substrate OsGEF1, which reduces the sensitivity of rice to microbe-associated molecular patterns. Indeed, OsMYR1 overexpression lines are more susceptible to the fungal pathogen Magnaporthe oryzae, whereas Osmyr1 mutants show higher resistance. On the other hand, OsCEBiP can bind OsCERK1 and thus block OsMYR1-OsCERK1 heteromer formation. Consistently, the Oscebip mutant displayed a higher rate of mycorrhizal colonization at early stages of infection. Our results indicate that OsMYR1 and OsCEBiP receptors compete for OsCERK1 to determine the outcome of symbiosis and immunity signals.
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Ghahremani M, MacLean AM. Home sweet home: how mutualistic microbes modify root development to promote symbiosis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2275-2287. [PMID: 33369646 DOI: 10.1093/jxb/eraa607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
Post-embryonic organogenesis has uniquely equipped plants to become developmentally responsive to their environment, affording opportunities to remodel organism growth and architecture to an extent not possible in other higher order eukaryotes. It is this developmental plasticity that makes the field of plant-microbe interactions an exceptionally fascinating venue in which to study symbiosis. This review article describes the various ways in which mutualistic microbes alter the growth, development, and architecture of the roots of their plant hosts. We first summarize general knowledge of root development, and then examine how association of plants with beneficial microbes affects these processes. Working our way inwards from the epidermis to the pericycle, this review dissects the cell biology and molecular mechanisms underlying plant-microbe interactions in a tissue-specific manner. We examine the ways in which microbes gain entry into the root, and modify this specialized organ for symbiont accommodation, with a particular emphasis on the colonization of root cortical cells. We present significant advances in our understanding of root-microbe interactions, and conclude our discussion by identifying questions pertinent to root endosymbiosis that at present remain unresolved.
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Affiliation(s)
- Mina Ghahremani
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, Canada
| | - Allyson M MacLean
- Department of Biology, University of Ottawa, 30 Marie Curie, Ottawa, Canada
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Nasir F, Bahadur A, Lin X, Gao Y, Tian C. Novel insights into host receptors and receptor-mediated signaling that regulate arbuscular mycorrhizal symbiosis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:1546-1557. [PMID: 33252650 DOI: 10.1093/jxb/eraa538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 11/10/2020] [Indexed: 06/12/2023]
Abstract
More than 80% of land plant species benefit from symbiotic partnerships with arbuscular mycorrhizal (AM) fungi, which assist in nutrient acquisition and enhance the ability of host plants to adapt to environmental constraints. Host-generated plasma membrane-residing receptor-like kinases and the intracellular α/β-hydrolase DWARF14-LIKE, a putative karrikin receptor, detect the presence of AM fungi before physical contact between the host and fungus. Detection induces appropriate symbiotic responses, which subsequently enables a favorable environment for AM symbiosis to occur. To prevent hyper-colonization and maintain a mutually beneficial association, the host plant precisely monitors and controls AM colonization by receptor-like kinases, such as SUPER NUMERIC NODULES. Previous studies have elucidated how host plant receptors and receptor-mediated signaling regulate AM symbiosis, but the underlying molecular mechanisms remain poorly understood. The identification of a rice CHITIN ELICITOR RECEPTOR KINASE 1 interaction partner, MYC FACTOR RECEPTOR 1, and new insights into DWARF14-LIKE receptor- and SUPER NUMERIC NODULES receptor-mediated signaling have expanded our understanding of how host plant receptors and their corresponding signals regulate AM symbiosis. This review summarizes these and other recent relevant findings. The identified receptors and/or their signaling components could be manipulated to engineer crops with improved agronomic traits by conferring the ability to precisely control AM colonization.
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Affiliation(s)
- Fahad Nasir
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin Province, China
| | - Ali Bahadur
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Northwest Institute of Eco-environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu Province, China
| | - Xiaolong Lin
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin Province, China
| | - Yingzhi Gao
- Key Laboratory of Vegetation Ecology, Institute of Grassland Science, Northeast Normal University, Changchun, Jilin Province, China
| | - Chunjie Tian
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin Province, China
- Key Laboratory of Straw Biology and Utilization of the Ministry of Education, Jilin Agricultural University, Changchun, Jilin Province, China
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Crosino A, Moscato E, Blangetti M, Carotenuto G, Spina F, Bordignon S, Puech-Pagès V, Anfossi L, Volpe V, Prandi C, Gobetto R, Varese GC, Genre A. Extraction of short chain chitooligosaccharides from fungal biomass and their use as promoters of arbuscular mycorrhizal symbiosis. Sci Rep 2021; 11:3798. [PMID: 33589668 PMCID: PMC7884697 DOI: 10.1038/s41598-021-83299-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/29/2021] [Indexed: 01/30/2023] Open
Abstract
Short chain chitooligosaccharides (COs) are chitin derivative molecules involved in plant-fungus signaling during arbuscular mycorrhizal (AM) interactions. In host plants, COs activate a symbiotic signalling pathway that regulates AM-related gene expression. Furthermore, exogenous CO application was shown to promote AM establishment, with a major interest for agricultural applications of AM fungi as biofertilizers. Currently, the main source of commercial COs is from the shrimp processing industry, but purification costs and environmental concerns limit the convenience of this approach. In an attempt to find a low cost and low impact alternative, this work aimed to isolate, characterize and test the bioactivity of COs from selected strains of phylogenetically distant filamentous fungi: Pleurotus ostreatus, Cunninghamella bertholletiae and Trichoderma viride. Our optimized protocol successfully isolated short chain COs from lyophilized fungal biomass. Fungal COs were more acetylated and displayed a higher biological activity compared to shrimp-derived COs, a feature that-alongside low production costs-opens promising perspectives for the large scale use of COs in agriculture.
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Affiliation(s)
- Andrea Crosino
- Department of Life Science and Systems Biology, University of Turin, 10125, Turin, Italy
| | - Elisa Moscato
- Department of Life Science and Systems Biology, University of Turin, 10125, Turin, Italy
| | - Marco Blangetti
- Department of Chemistry, University of Turin, 10125, Turin, Italy
| | - Gennaro Carotenuto
- Department of Life Science and Systems Biology, University of Turin, 10125, Turin, Italy
| | - Federica Spina
- Department of Life Science and Systems Biology, University of Turin, 10125, Turin, Italy
| | - Simone Bordignon
- Department of Chemistry, University of Turin, 10125, Turin, Italy
| | - Virginie Puech-Pagès
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, 31320, Castanet-Tolosan, France
| | - Laura Anfossi
- Department of Chemistry, University of Turin, 10125, Turin, Italy
| | - Veronica Volpe
- Department of Life Science and Systems Biology, University of Turin, 10125, Turin, Italy
| | - Cristina Prandi
- Department of Chemistry, University of Turin, 10125, Turin, Italy
| | - Roberto Gobetto
- Department of Chemistry, University of Turin, 10125, Turin, Italy
| | | | - Andrea Genre
- Department of Life Science and Systems Biology, University of Turin, 10125, Turin, Italy.
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Wanke A, Malisic M, Wawra S, Zuccaro A. Unraveling the sugar code: the role of microbial extracellular glycans in plant-microbe interactions. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:15-35. [PMID: 32929496 PMCID: PMC7816849 DOI: 10.1093/jxb/eraa414] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/14/2020] [Indexed: 05/14/2023]
Abstract
To defend against microbial invaders but also to establish symbiotic programs, plants need to detect the presence of microbes through the perception of molecular signatures characteristic of a whole class of microbes. Among these molecular signatures, extracellular glycans represent a structurally complex and diverse group of biomolecules that has a pivotal role in the molecular dialog between plants and microbes. Secreted glycans and glycoconjugates such as symbiotic lipochitooligosaccharides or immunosuppressive cyclic β-glucans act as microbial messengers that prepare the ground for host colonization. On the other hand, microbial cell surface glycans are important indicators of microbial presence. They are conserved structures normally exposed and thus accessible for plant hydrolytic enzymes and cell surface receptor proteins. While the immunogenic potential of bacterial cell surface glycoconjugates such as lipopolysaccharides and peptidoglycan has been intensively studied in the past years, perception of cell surface glycans from filamentous microbes such as fungi or oomycetes is still largely unexplored. To date, only few studies have focused on the role of fungal-derived cell surface glycans other than chitin, highlighting a knowledge gap that needs to be addressed. The objective of this review is to give an overview on the biological functions and perception of microbial extracellular glycans, primarily focusing on their recognition and their contribution to plant-microbe interactions.
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Affiliation(s)
- Alan Wanke
- University of Cologne, Cluster of Excellence on Plant Sciences (CEPLAS), Institute for Plant Sciences, Cologne, Germany
- Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Milena Malisic
- University of Cologne, Cluster of Excellence on Plant Sciences (CEPLAS), Institute for Plant Sciences, Cologne, Germany
| | - Stephan Wawra
- University of Cologne, Cluster of Excellence on Plant Sciences (CEPLAS), Institute for Plant Sciences, Cologne, Germany
| | - Alga Zuccaro
- University of Cologne, Cluster of Excellence on Plant Sciences (CEPLAS), Institute for Plant Sciences, Cologne, Germany
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40
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Dreischhoff S, Das IS, Jakobi M, Kasper K, Polle A. Local Responses and Systemic Induced Resistance Mediated by Ectomycorrhizal Fungi. FRONTIERS IN PLANT SCIENCE 2020; 11:590063. [PMID: 33381131 PMCID: PMC7767828 DOI: 10.3389/fpls.2020.590063] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/10/2020] [Indexed: 05/13/2023]
Abstract
Ectomycorrhizal fungi (EMF) grow as saprotrophs in soil and interact with plants, forming mutualistic associations with roots of many economically and ecologically important forest tree genera. EMF ensheath the root tips and produce an extensive extramatrical mycelium for nutrient uptake from the soil. In contrast to other mycorrhizal fungal symbioses, EMF do not invade plant cells but form an interface for nutrient exchange adjacent to the cortex cells. The interaction of roots and EMF affects host stress resistance but uncovering the underlying molecular mechanisms is an emerging topic. Here, we focused on local and systemic effects of EMF modulating defenses against insects or pathogens in aboveground tissues in comparison with arbuscular mycorrhizal induced systemic resistance. Molecular studies indicate a role of chitin in defense activation by EMF in local tissues and an immune response that is induced by yet unknown signals in aboveground tissues. Volatile organic compounds may be involved in long-distance communication between below- and aboveground tissues, in addition to metabolite signals in the xylem or phloem. In leaves of EMF-colonized plants, jasmonate signaling is involved in transcriptional re-wiring, leading to metabolic shifts in the secondary and nitrogen-based defense metabolism but cross talk with salicylate-related signaling is likely. Ectomycorrhizal-induced plant immunity shares commonalities with systemic acquired resistance and induced systemic resistance. We highlight novel developments and provide a guide to future research directions in EMF-induced resistance.
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Affiliation(s)
| | | | | | | | - Andrea Polle
- Forest Botany and Tree Physiology, University of Göttingen, Göttingen, Germany
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41
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Rush TA, Puech-Pagès V, Bascaules A, Jargeat P, Maillet F, Haouy A, Maës AQ, Carriel CC, Khokhani D, Keller-Pearson M, Tannous J, Cope KR, Garcia K, Maeda J, Johnson C, Kleven B, Choudhury QJ, Labbé J, Swift C, O'Malley MA, Bok JW, Cottaz S, Fort S, Poinsot V, Sussman MR, Lefort C, Nett J, Keller NP, Bécard G, Ané JM. Lipo-chitooligosaccharides as regulatory signals of fungal growth and development. Nat Commun 2020; 11:3897. [PMID: 32753587 PMCID: PMC7403392 DOI: 10.1038/s41467-020-17615-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 07/09/2020] [Indexed: 12/18/2022] Open
Abstract
Lipo-chitooligosaccharides (LCOs) are signaling molecules produced by rhizobial bacteria that trigger the nodulation process in legumes, and by some fungi that also establish symbiotic relationships with plants, notably the arbuscular and ecto mycorrhizal fungi. Here, we show that many other fungi also produce LCOs. We tested 59 species representing most fungal phyla, and found that 53 species produce LCOs that can be detected by functional assays and/or by mass spectroscopy. LCO treatment affects spore germination, branching of hyphae, pseudohyphal growth, and transcription in non-symbiotic fungi from the Ascomycete and Basidiomycete phyla. Our findings suggest that LCO production is common among fungi, and LCOs may function as signals regulating fungal growth and development.
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Affiliation(s)
- Tomás Allen Rush
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Bioscience Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Virginie Puech-Pagès
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Adeline Bascaules
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Patricia Jargeat
- Laboratoire Évolution et Diversité Biologique, Université de Toulouse, CNRS, UPS, IRD, Toulouse, France
| | - Fabienne Maillet
- Laboratoire des Interactions Plantes-Microorganismes, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France
| | - Alexandra Haouy
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Arthur QuyManh Maës
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Cristobal Carrera Carriel
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Devanshi Khokhani
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Michelle Keller-Pearson
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Joanna Tannous
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Bioscience Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Kevin R Cope
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA
- South Dakota State University, Brookings, SD, 57007, USA
| | - Kevin Garcia
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA
- North Carolina State University, Raleigh, NC, 27695, USA
| | - Junko Maeda
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Chad Johnson
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Bailey Kleven
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Quanita J Choudhury
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Department of Microbiology, University of Tennessee, Knoxville, TN, 37996, USA
- University of Georgia, Athens, GA, 30602, USA
| | - Jessy Labbé
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Candice Swift
- Department of Chemical Engineering, University of California, Santa Barbara, CA, 93106, USA
| | - Michelle A O'Malley
- Department of Chemical Engineering, University of California, Santa Barbara, CA, 93106, USA
| | - Jin Woo Bok
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Sylvain Cottaz
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Sébastien Fort
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Verena Poinsot
- Laboratoire des Interactions Moléculaires et Réactivités Chimiques et Photochimiques, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Michael R Sussman
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Corinne Lefort
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Jeniel Nett
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Nancy P Keller
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Guillaume Bécard
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France.
| | - Jean-Michel Ané
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, 53706, USA.
- Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA.
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Genre A, Lanfranco L, Perotto S, Bonfante P. Unique and common traits in mycorrhizal symbioses. Nat Rev Microbiol 2020; 18:649-660. [PMID: 32694620 DOI: 10.1038/s41579-020-0402-3] [Citation(s) in RCA: 169] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2020] [Indexed: 12/16/2022]
Abstract
Mycorrhizas are among the most important biological interkingdom interactions, as they involve ~340,000 land plants and ~50,000 taxa of soil fungi. In these mutually beneficial interactions, fungi receive photosynthesis-derived carbon and provide the host plant with mineral nutrients such as phosphorus and nitrogen in exchange. More than 150 years of research on mycorrhizas has raised awareness of their biology, biodiversity and ecological impact. In this Review, we focus on recent phylogenomic, molecular and cell biology studies to present the current state of knowledge of the origin of mycorrhizal fungi and the evolutionary history of their relationship with land plants. As mycorrhizas feature a variety of phenotypes, depending on partner taxonomy, physiology and cellular interactions, we explore similarities and differences between mycorrhizal types. During evolution, mycorrhizal fungi have refined their biotrophic capabilities to take advantage of their hosts as food sources and protective niches, while plants have developed multiple strategies to accommodate diverse fungal symbionts. Intimate associations with pervasive ecological success have originated at the crossroads between these two evolutionary pathways. Our understanding of the biological processes underlying these symbioses, where fungi act as biofertilizers and bioprotectors, provides the tools to design biotechnological applications addressing environmental and agricultural challenges.
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Affiliation(s)
- Andrea Genre
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Luisa Lanfranco
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Silvia Perotto
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Paola Bonfante
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy.
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43
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Fürst-Jansen JMR, de Vries S, de Vries J. Evo-physio: on stress responses and the earliest land plants. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:3254-3269. [PMID: 31922568 PMCID: PMC7289718 DOI: 10.1093/jxb/eraa007] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 01/07/2020] [Indexed: 05/19/2023]
Abstract
Embryophytes (land plants) can be found in almost any habitat on the Earth's surface. All of this ecologically diverse embryophytic flora arose from algae through a singular evolutionary event. Traits that were, by their nature, indispensable for the singular conquest of land by plants were those that are key for overcoming terrestrial stressors. Not surprisingly, the biology of land plant cells is shaped by a core signaling network that connects environmental cues, such as stressors, to the appropriate responses-which, thus, modulate growth and physiology. When did this network emerge? Was it already present when plant terrestrialization was in its infancy? A comparative approach between land plants and their algal relatives, the streptophyte algae, allows us to tackle such questions and resolve parts of the biology of the earliest land plants. Exploring the biology of the earliest land plants might shed light on exactly how they overcame the challenges of terrestrialization. Here, we outline the approaches and rationale underlying comparative analyses towards inferring the genetic toolkit for the stress response that aided the earliest land plants in their conquest of land.
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Affiliation(s)
- Janine M R Fürst-Jansen
- University of Göttingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Göttingen, Germany
| | - Sophie de Vries
- Population Genetics, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Jan de Vries
- University of Göttingen, Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Göttingen, Germany
- University of Göttingen, Göttingen Center for Molecular Biosciences (GZMB), Göttingen, Germany
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44
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Skiada V, Avramidou M, Bonfante P, Genre A, Papadopoulou KK. An endophytic Fusarium-legume association is partially dependent on the common symbiotic signalling pathway. THE NEW PHYTOLOGIST 2020; 226:1429-1444. [PMID: 31997356 DOI: 10.1111/nph.16457] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Legumes interact with a wide range of microbes in their root systems, ranging from beneficial symbionts to pathogens. Symbiotic rhizobia and arbuscular mycorrhizal glomeromycetes trigger a so-called common symbiotic signalling pathway (CSSP), including the induction of nuclear calcium spiking in the root epidermis. By combining gene expression analysis, mutant phenotypic screening and analysis of nuclear calcium elevations, we demonstrate that recognition of an endophytic Fusarium solani strain K (FsK) in model legumes is initiated via perception of chitooligosaccharidic molecules and is, at least partially, CSSP-dependent. FsK induced the expression of Lysin-motif receptors for chitin-based molecules, CSSP members and CSSP-dependent genes in Lotus japonicus. In LysM and CSSP mutant/RNAi lines, root penetration and fungal intraradical progression was either stimulated or limited, whereas FsK exudates triggered CSSP-dependent nuclear calcium spiking, in epidermal cells of Medicago truncatula root organ cultures. Our results corroborate CSSP being involved in the perception of signals from other microbes beyond the restricted group of symbiotic interactions sensu stricto.
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Affiliation(s)
- Vasiliki Skiada
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, Larissa, 41500, Greece
| | - Marianna Avramidou
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, Larissa, 41500, Greece
| | - Paola Bonfante
- Department of Life Sciences and Systems Biology, University of Torino, Torino, 10125, Italy
| | - Andrea Genre
- Department of Life Sciences and Systems Biology, University of Torino, Torino, 10125, Italy
| | - Kalliope K Papadopoulou
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, Larissa, 41500, Greece
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45
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Chiu CH, Paszkowski U. Receptor-Like Kinases Sustain Symbiotic Scrutiny. PLANT PHYSIOLOGY 2020; 182:1597-1612. [PMID: 32054781 PMCID: PMC7140970 DOI: 10.1104/pp.19.01341] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/25/2020] [Indexed: 05/04/2023]
Abstract
Plant receptor-like kinases (RLKs) control the initiation, development, and maintenance of symbioses with beneficial mycorrhizal fungi and nitrogen-fixing bacteria. Carbohydrate perception activates symbiosis signaling via Lysin-motif RLKs and subsequently the common symbiosis signaling pathway. As the receptors activated are often also immune receptors in multiple species, exactly how carbohydrate identities avoid immune activation and drive symbiotic outcome is still not fully understood. This may involve the coincident detection of additional signaling molecules that provide specificity. Because of the metabolic costs of supporting symbionts, the level of symbiosis development is fine-tuned by a range of local and mobile signals that are activated by various RLKs. Beyond early, precontact symbiotic signaling, signal exchanges ensue throughout infection, nutrient exchange, and turnover of symbiosis. Here, we review the latest understanding of plant symbiosis signaling from the perspective of RLK-mediated pathways.
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Affiliation(s)
- Chai Hao Chiu
- Department of Plant Sciences, University of Cambridge, Cambridge CB2 3EA, United Kingdom
| | - Uta Paszkowski
- Department of Plant Sciences, University of Cambridge, Cambridge CB2 3EA, United Kingdom
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46
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Lefebvre B. An opportunity to breed rice for improved benefits from the arbuscular mycorrhizal symbiosis? THE NEW PHYTOLOGIST 2020; 225:1404-1406. [PMID: 31823373 DOI: 10.1111/nph.16333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Benoit Lefebvre
- LIPM, Université de Toulouse, INRA, CNRS, 31326, Castanet-Tolosan, France
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47
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Volpe V, Carotenuto G, Berzero C, Cagnina L, Puech-Pagès V, Genre A. Short chain chito-oligosaccharides promote arbuscular mycorrhizal colonization in Medicago truncatula. Carbohydr Polym 2020; 229:115505. [DOI: 10.1016/j.carbpol.2019.115505] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/25/2019] [Accepted: 10/17/2019] [Indexed: 01/17/2023]
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48
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Huisman R, Geurts R. A Roadmap toward Engineered Nitrogen-Fixing Nodule Symbiosis. PLANT COMMUNICATIONS 2020; 1:100019. [PMID: 33404552 PMCID: PMC7748023 DOI: 10.1016/j.xplc.2019.100019] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/06/2019] [Accepted: 12/27/2019] [Indexed: 05/26/2023]
Abstract
In the late 19th century, it was discovered that legumes can establish a root nodule endosymbiosis with nitrogen-fixing rhizobia. Soon after, the question was raised whether it is possible to transfer this trait to non-leguminous crops. In the past century, an ever-increasing amount of knowledge provided unique insights into the cellular, molecular, and genetic processes controlling this endosymbiosis. In addition, recent phylogenomic studies uncovered several genes that evolved to function specifically to control nodule formation and bacterial infection. However, despite this massive body of knowledge, the long-standing objective to engineer the nitrogen-fixing nodulation trait on non-leguminous crop plants has not been achieved yet. In this review, the unsolved questions and engineering strategies toward nitrogen-fixing nodulation in non-legume plants are discussed and highlighted.
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Affiliation(s)
- Rik Huisman
- Wageningen University, Department of Plant Sciences, Laboratory of Molecular Biology, Droevendaalsesteeg 1, Wageningen 6708PB, The Netherlands
| | - Rene Geurts
- Wageningen University, Department of Plant Sciences, Laboratory of Molecular Biology, Droevendaalsesteeg 1, Wageningen 6708PB, The Netherlands
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49
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Girardin A, Wang T, Ding Y, Keller J, Buendia L, Gaston M, Ribeyre C, Gasciolli V, Auriac MC, Vernié T, Bendahmane A, Ried MK, Parniske M, Morel P, Vandenbussche M, Schorderet M, Reinhardt D, Delaux PM, Bono JJ, Lefebvre B. LCO Receptors Involved in Arbuscular Mycorrhiza Are Functional for Rhizobia Perception in Legumes. Curr Biol 2019; 29:4249-4259.e5. [PMID: 31813608 PMCID: PMC6926482 DOI: 10.1016/j.cub.2019.11.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 08/09/2019] [Accepted: 11/12/2019] [Indexed: 01/10/2023]
Abstract
Bacterial lipo-chitooligosaccharides (LCOs) are key mediators of the nitrogen-fixing root nodule symbiosis (RNS) in legumes. The isolation of LCOs from arbuscular mycorrhizal fungi suggested that LCOs are also signaling molecules in arbuscular mycorrhiza (AM). However, the corresponding plant receptors have remained uncharacterized. Here we show that petunia and tomato mutants in the LysM receptor-like kinases LYK10 are impaired in AM formation. Petunia and tomato LYK10 proteins have a high affinity for LCOs (Kd in the nM range) comparable to that previously reported for a legume LCO receptor essential for the RNS. Interestingly, the tomato and petunia LYK10 promoters, when introduced into a legume, were active in nodules similarly to the promoter of the legume orthologous gene. Moreover, tomato and petunia LYK10 coding sequences restored nodulation in legumes mutated in their orthologs. This combination of genetic and biochemical data clearly pinpoints Solanaceous LYK10 as part of an ancestral LCO perception system involved in AM establishment, which has been directly recruited during evolution of the RNS in legumes.
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Affiliation(s)
- Ariane Girardin
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Tongming Wang
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Yi Ding
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Jean Keller
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | - Luis Buendia
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Mégane Gaston
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Camille Ribeyre
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Virginie Gasciolli
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Marie-Christine Auriac
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France; Institut Fédératif de Recherche 3450, Université de Toulouse, CNRS, UPS, Plateforme Imagerie TRI-Genotoul, 31326 Castanet-Tolosan, France
| | - Tatiana Vernié
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | | | | | - Martin Parniske
- Genetics, Faculty of Biology, University of Munich (LMU), 82152 Martinsried, Germany
| | - Patrice Morel
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, F-69342 Lyon, France
| | - Michiel Vandenbussche
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, F-69342 Lyon, France
| | - Martine Schorderet
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Didier Reinhardt
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Pierre-Marc Delaux
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Auzeville, BP42617, 31326 Castanet-Tolosan, France
| | - Jean-Jacques Bono
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France
| | - Benoit Lefebvre
- LIPM, Université de Toulouse, INRA, CNRS, 31326 Castanet-Tolosan, France.
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50
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Pankievicz VCS, Irving TB, Maia LGS, Ané JM. Are we there yet? The long walk towards the development of efficient symbiotic associations between nitrogen-fixing bacteria and non-leguminous crops. BMC Biol 2019; 17:99. [PMID: 31796086 PMCID: PMC6889567 DOI: 10.1186/s12915-019-0710-0] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 10/18/2019] [Indexed: 01/09/2023] Open
Abstract
Nitrogen is an essential element of life, and nitrogen availability often limits crop yields. Since the Green Revolution, massive amounts of synthetic nitrogen fertilizers have been produced from atmospheric nitrogen and natural gas, threatening the sustainability of global food production and degrading the environment. There is a need for alternative means of bringing nitrogen to crops, and taking greater advantage of biological nitrogen fixation seems a logical option. Legumes are used in most cropping systems around the world because of the nitrogen-fixing symbiosis with rhizobia. However, the world's three major cereal crops-rice, wheat, and maize-do not associate with rhizobia. In this review, we will survey how genetic approaches in rhizobia and their legume hosts allowed tremendous progress in understanding the molecular mechanisms controlling root nodule symbioses, and how this knowledge paves the way for engineering such associations in non-legume crops. We will also discuss challenges in bringing these systems into the field and how they can be surmounted by interdisciplinary collaborations between synthetic biologists, microbiologists, plant biologists, breeders, agronomists, and policymakers.
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Affiliation(s)
| | - Thomas B Irving
- Department of Bacteriology, University of Wisconsin, Madison, WI, USA
| | - Lucas G S Maia
- Department of Bacteriology, University of Wisconsin, Madison, WI, USA
| | - Jean-Michel Ané
- Department of Agronomy, University of Wisconsin, Madison, WI, USA.
- Department of Bacteriology, University of Wisconsin, Madison, WI, USA.
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