1
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Han Y, Sun Y, Wang H, Li H, Jiang M, Liu X, Cao Y, Wang W, Yin H, Chen J, Sun J, Zhu QH, Zhu S, Zhao T. Biosynthesis and Signaling of Strigolactones Act Synergistically With That of ABA and JA to Enhance Verticillium dahliae Resistance in Cotton (Gossypium hirsutum L.). PLANT, CELL & ENVIRONMENT 2024. [PMID: 39286958 DOI: 10.1111/pce.15148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 08/22/2024] [Accepted: 08/24/2024] [Indexed: 09/19/2024]
Abstract
Verticillium wilt (VW) caused by the soil-borne fungal pathogen Verticillium dahliae reduces cotton productivity and quality. Numerous studies have explored the genetic and molecular mechanisms regulating VW resistance in cotton, but the role and mechanism of strigolactone (SL) is still elusive. We investigated the function of SL in cotton's immune response to V. dahliae infection by exogenously applying SL analog, blocking or enhancing biosynthesis of endogenous SLs in combination with comparative transcriptome analysis and by exploring cross-talk between SL and other phytohormones. Silencing GhDWARF27 and applying the SL analog GR24 or overexpressing GhDWARF27 decreased and enhanced V. dahliae resistance, respectively. Transcriptome analysis revealed SL-mediated activation of abscisic acid (ABA) and jasmonic acid (JA) biosynthesis and signaling pathways. Enhanced ABA biosynthesis and signaling led to increased activity of antioxidant enzymes and reduced buildup of excess reactive oxygen species. Enhanced JA biosynthesis and signaling facilitated transcription of JA-dependent disease resistance genes. One of the components of the SL signal transduction pathway, GhD53, was found to interact with GhNCED5 and GhLOX2, the key enzymes of ABA and JA biosynthesis, respectively. We revealed the molecular mechanism underlying SL-enabled V. dahliae resistance and provided potential solutions for improving VW resistance in cotton.
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Affiliation(s)
- Yifei Han
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Yue Sun
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Haoqi Wang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Huazu Li
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Meng Jiang
- Institute of Hainan, Zhejiang University, Sanya, China
| | - Xueying Liu
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - Yuefen Cao
- College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou, China
| | - Wanru Wang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Hong Yin
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Jinhong Chen
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- Institute of Hainan, Zhejiang University, Sanya, China
| | - Jie Sun
- Agricultural College, Shihezi University, Shihezi, China
| | - Qian-Hao Zhu
- Agriculture and Food, CSIRO, Canberra, Australian Capital Territory, Australia
| | - Shuijin Zhu
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- Institute of Hainan, Zhejiang University, Sanya, China
| | - Tianlun Zhao
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- Institute of Hainan, Zhejiang University, Sanya, China
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2
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Bala IA, Nicolescu A, Georgescu F, Dumitrascu F, Airinei A, Tigoianu R, Georgescu E, Constantinescu-Aruxandei D, Oancea F, Deleanu C. Synthesis and Biological Properties of Fluorescent Strigolactone Mimics Derived from 1,8-Naphthalimide. Molecules 2024; 29:2283. [PMID: 38792143 PMCID: PMC11124091 DOI: 10.3390/molecules29102283] [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: 03/26/2024] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
Strigolactones (SLs) have potential to be used in sustainable agriculture to mitigate various stresses that plants have to deal with. The natural SLs, as well as the synthetic analogs, are difficult to obtain in sufficient amounts for practical applications. At the same time, fluorescent SLs would be useful for the mechanistic understanding of their effects based on bio-imaging or spectroscopic techniques. In this study, new fluorescent SL mimics containing a substituted 1,8-naphthalimide ring system connected through an ether link to a bioactive furan-2-one moiety were prepared. The structural, spectroscopic, and biological activity of the new SL mimics on phytopathogens were investigated and compared with previously synthetized fluorescent SL mimics. The chemical group at the C-6 position of the naphthalimide ring influences the fluorescence parameters. All SL mimics showed effects similar to GR24 on phytopathogens, indicating their suitability for practical applications. The pattern of the biological activity depended on the fungal species, SL mimic and concentration, and hyphal order. This dependence is probably related to the specificity of each fungal receptor-SL mimic interaction, which will have to be analyzed in-depth. Based on the biological properties and spectroscopic particularities, one SL mimic could be a good candidate for microscopic and spectroscopic investigations.
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Affiliation(s)
- Ioana-Alexandra Bala
- Bioproducts Team, Bioresources Department, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței Nr. 202, Sector 6, 060021 Bucharest, Romania;
- Faculty of Biotechnologies, University of Agronomic Sciences and Veterinary Medicine of Bucharest, Bd. Mărăști Nr. 59, Sector 1, 011464 Bucharest, Romania
| | - Alina Nicolescu
- “Petru Poni” Institute of Macromolecular Chemistry, Romanian Academy, Aleea Grigore Ghica Voda Nr. 41-A, 700487 Iaşi, Romania; (A.N.); (A.A.); (R.T.)
- “Costin D. Nenițescu” Institute of Organic and Supramolecular Chemistry, Romanian Academy, Splaiul Independentei Nr. 202B, Sector 6, 060023 Bucharest, Romania;
| | | | - Florea Dumitrascu
- “Costin D. Nenițescu” Institute of Organic and Supramolecular Chemistry, Romanian Academy, Splaiul Independentei Nr. 202B, Sector 6, 060023 Bucharest, Romania;
| | - Anton Airinei
- “Petru Poni” Institute of Macromolecular Chemistry, Romanian Academy, Aleea Grigore Ghica Voda Nr. 41-A, 700487 Iaşi, Romania; (A.N.); (A.A.); (R.T.)
| | - Radu Tigoianu
- “Petru Poni” Institute of Macromolecular Chemistry, Romanian Academy, Aleea Grigore Ghica Voda Nr. 41-A, 700487 Iaşi, Romania; (A.N.); (A.A.); (R.T.)
| | - Emilian Georgescu
- Research Center Oltchim, St. Uzinei 1, 240050 Ramnicu Valcea, Romania;
| | - Diana Constantinescu-Aruxandei
- Bioproducts Team, Bioresources Department, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței Nr. 202, Sector 6, 060021 Bucharest, Romania;
| | - Florin Oancea
- Bioproducts Team, Bioresources Department, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței Nr. 202, Sector 6, 060021 Bucharest, Romania;
- Faculty of Biotechnologies, University of Agronomic Sciences and Veterinary Medicine of Bucharest, Bd. Mărăști Nr. 59, Sector 1, 011464 Bucharest, Romania
| | - Calin Deleanu
- “Petru Poni” Institute of Macromolecular Chemistry, Romanian Academy, Aleea Grigore Ghica Voda Nr. 41-A, 700487 Iaşi, Romania; (A.N.); (A.A.); (R.T.)
- “Costin D. Nenițescu” Institute of Organic and Supramolecular Chemistry, Romanian Academy, Splaiul Independentei Nr. 202B, Sector 6, 060023 Bucharest, Romania;
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3
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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. Signals and Machinery for Mycorrhizae and Cereal and Oilseed Interactions towards Improved Tolerance to Environmental Stresses. PLANTS (BASEL, SWITZERLAND) 2024; 13:826. [PMID: 38592805 PMCID: PMC10975020 DOI: 10.3390/plants13060826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/04/2024] [Accepted: 03/12/2024] [Indexed: 04/11/2024]
Abstract
In the quest for sustainable agricultural practices, there arises an urgent need for alternative solutions to mineral fertilizers and pesticides, aiming to diminish the environmental footprint of farming. Arbuscular mycorrhizal fungi (AMF) emerge as a promising avenue, bestowing plants with heightened nutrient absorption capabilities while alleviating plant stress. Cereal and oilseed crops benefit from this association in a number of ways, including improved growth fitness, nutrient uptake, and tolerance to environmental stresses. Understanding the molecular mechanisms shaping the impact of AMF on these crops offers encouraging prospects for a more efficient use of these beneficial microorganisms to mitigate climate change-related stressors on plant functioning and productivity. An increased number of studies highlighted the boosting effect of AMF on grain and oil crops' tolerance to (a)biotic stresses while limited ones investigated the molecular aspects orchestrating the different involved mechanisms. This review gives an extensive overview of the different strategies initiated by mycorrhizal cereal and oilseed plants to manage the deleterious effects of environmental stress. We also discuss the molecular drivers and mechanistic concepts to unveil the molecular machinery triggered by AMF to alleviate the tolerance of these crops to stressors.
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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 of Biochemistry, Environment & Agri-Food URAC 36, Department of Biology, Faculty of Science and Techniques—Mohammedia, Hassan II University, 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
- Multidisciplinary Faculty of Nador, Mohammed 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
- AgroBiosciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic (UM6P), Ben Guerir 43150, 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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Vogel D, Hills P, Moore JP. Strigolactones GR-24 and Nijmegen Applications Result in Reduced Susceptibility of Tobacco and Grapevine Plantlets to Botrytis cinerea Infection. PLANTS (BASEL, SWITZERLAND) 2023; 12:3202. [PMID: 37765366 PMCID: PMC10535315 DOI: 10.3390/plants12183202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 09/03/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023]
Abstract
Priming agents are plant defence-inducing compounds which can prompt a state of protection but may also aid in plant growth and interactions with beneficial microbes. The synthetic strigolactones (±)-GR24 and Nijmegen-1 were evaluated as potential priming agents for induced resistance against Botrytis cinerea in tobacco and grapevine plants. The growth and stress response profiles of B. cinerea to strigolactones were also investigated. Soil drench treatment with strigolactones induced resistance in greenhouse-grown tobacco plants and restricted lesion development. The mode of action appeared to function by priming redox-associated compounds to produce an anti-oxidant protective response for limiting the infection. The results obtained in the in vitro assays mirrored that of the greenhouse-grown plants. Exposure of B. cinerea to the strigolactones resulted in increased hyphal branching, with (±)-GR24 stimulating a stronger effect than Nijmegen-1 by affecting colony diameter and radial growth. An oxidative stress response was observed, with B. cinerea exhibiting increased ROS and SOD levels when grown with strigolactones. This study identified the application of strigolactones as potential priming agents to induce disease resistance in both tobacco and grapevine plants. In addition, strigolactones may alter the ROS homeostasis of B. cinerea, resulting in both morphological and physiological changes, thereby reducing virulence.
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Affiliation(s)
- Dominic Vogel
- South African Grape and Wine Research Institute, Department of Viticulture and Oenology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Paul Hills
- Institute for Plant Biotechnology, Department of Genetics, Faculty of AgriSciences, Stellenbosch University, Stellenbosch 7602, South Africa
| | - John P Moore
- South African Grape and Wine Research Institute, Department of Viticulture and Oenology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch 7600, South Africa
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Fiorilli V, Forgia M, de Saint Germain A, D’Arrigo G, Cornu D, Le Bris P, Al‐Babili S, Cardinale F, Prandi C, Spyrakis F, Boyer F, Turina M, Lanfranco L. A structural homologue of the plant receptor D14 mediates responses to strigolactones in the fungal phytopathogen Cryphonectria parasitica. THE NEW PHYTOLOGIST 2022; 234:1003-1017. [PMID: 35119708 PMCID: PMC9306968 DOI: 10.1111/nph.18013] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/26/2022] [Indexed: 05/27/2023]
Abstract
Strigolactones (SLs) are plant hormones and important signalling molecules required to promote arbuscular mycorrhizal (AM) symbiosis. While in plants an α/β-hydrolase, DWARF14 (D14), was shown to act as a receptor that binds and cleaves SLs, the fungal receptor for SLs is unknown. Since AM fungi are currently not genetically tractable, in this study, we used the fungal pathogen Cryphonectria parasitica, for which gene deletion protocols exist, as a model, as we have previously shown that it responds to SLs. By means of computational, biochemical and genetic analyses, we identified a D14 structural homologue, CpD14. Molecular homology modelling and docking support the prediction that CpD14 interacts with and hydrolyses SLs. The recombinant CpD14 protein shows α/β hydrolytic activity in vitro against the SLs synthetic analogue GR24; its enzymatic activity requires an intact Ser/His/Asp catalytic triad. CpD14 expression in the d14-1 loss-of-function Arabidopsis thaliana line did not rescue the plant mutant phenotype. However, gene inactivation by knockout homologous recombination reduced fungal sensitivity to SLs. These results indicate that CpD14 is involved in SLs responses in C. parasitica and strengthen the role of SLs as multifunctional molecules acting in plant-microbe interactions.
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Affiliation(s)
- Valentina Fiorilli
- Dipartimento di Scienze della Vita e Biologia dei SistemiUniversità di TorinoViale P.A. Mattioli 25Torino10125Italy
| | - Marco Forgia
- Istituto per la Protezione Sostenibile delle Piante – CNRStrada delle Cacce 7310135TorinoItaly
| | | | - Giulia D’Arrigo
- Dipartimento di Scienza e Tecnologia del FarmacoUniversità di Torinovia P. Giuria 1110125TorinoItaly
| | - David Cornu
- CEA, CNRSInstitute for Integrative Biology of the Cell (I2BC)Université Paris‐Saclay1 Avenue de la Terrasse91198Gif‐sur‐YvetteFrance
| | - Philippe Le Bris
- INRAE, AgroParisTechInstitut Jean‐Pierre Bourgin (IJPB)Université Paris‐Saclay78000VersaillesFrance
| | - Salim Al‐Babili
- Division of Biological and Environmental Science and EngineeringKing Abdullah University of Science and TechnologyThuwal23955‐6900Saudi Arabia
| | - Francesca Cardinale
- Dipartimento di Scienze Agrarie, Forestali e AlimentariUniversità di TorinoLargo Braccini 210095GrugliascoItaly
| | - Cristina Prandi
- Dipartimento di ChimicaUniversità di Torinovia P. Giuria 710125TorinoItaly
| | - Francesca Spyrakis
- Dipartimento di Scienza e Tecnologia del FarmacoUniversità di Torinovia P. Giuria 1110125TorinoItaly
| | - François‐Didier Boyer
- CNRSInstitut de Chimie des Substances NaturellesUPR 2301Université Paris‐Saclay1 Avenue de la Terrasse91198Gif‐sur‐YvetteFrance
| | - Massimo Turina
- Istituto per la Protezione Sostenibile delle Piante – CNRStrada delle Cacce 7310135TorinoItaly
| | - Luisa Lanfranco
- Dipartimento di Scienze della Vita e Biologia dei SistemiUniversità di TorinoViale P.A. Mattioli 25Torino10125Italy
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6
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Evaluation of the Effect of Strigolactones and Synthetic Analogs on Fungi. Methods Mol Biol 2021. [PMID: 34028680 DOI: 10.1007/978-1-0716-1429-7_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Strigolactones (SLs) are components of root exudates as a consequence of active release from the roots into the soil. Notably, they have been described as stimulants of seed germination in parasitic plants and of the presymbiotic growth in arbuscular mycorrhizal (AM) fungi, which are a crucial component of the plant root beneficial microbiota. SLs have therefore the potential to influence other microbes that proliferate in the soil around the roots and may interact with plants. A direct effect of SL analogs on the in vitro growth of a number of saprotrophic or plant pathogenic fungi was indeed reported.Here we describe a standardized method to evaluate the effect of SLs or their synthetic analogs on AM and filamentous fungi. For AM fungi, we propose a spore germination assay since it is more straightforward than the hyphal branching assay and it does not require deep expertise and skills. For filamentous fungi that can grow in axenic cultures, we describe the assay based on SLs embedded in the solid medium or dissolved in liquid cultures where the fungus is inoculated to evaluate the effect on growth, hyphal branching or conidia germination. These assays are of help to test the activity of natural SLs as well as of newly designed SL analogs for basic and applied research.
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7
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Abedini D, Jaupitre S, Bouwmeester H, Dong L. Metabolic interactions in beneficial microbe recruitment by plants. Curr Opin Biotechnol 2021; 70:241-247. [PMID: 34237663 DOI: 10.1016/j.copbio.2021.06.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 06/14/2021] [Accepted: 06/17/2021] [Indexed: 12/26/2022]
Abstract
During millions of years of evolution, land plants and microorganisms have established elaborate partnerships. Microbes play essential roles in plant fitness and help plants cope with environmental challenges. Vice versa, plants provide the microbes with a niche and food. In the soil, a complex network of interactions mediated by metabolic signals drives the relationship between plants and microbes. Here, we review the roles of metabolic signaling in the plant-microbiome interaction. We discuss how plant-produced small molecules are involved in the recruitment of the microbiome. Also the microbial partners in this relationship use small molecules, such as quorum sensing molecules and volatiles for intra-species and inter-species communication. We give an overview of the regulation of the biosynthesis, secretion and perception of both plant and microbial small molecules and discuss the examples of biotechnological approaches to engineer the plant-microbiome interaction by targeting these metabolic dialogues. Ultimately, an improved understanding of the plant-microbiome interaction and engineering possibilities will pave the way to a more sustainable agriculture.
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Affiliation(s)
- Davar Abedini
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Sébastien Jaupitre
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Harro Bouwmeester
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Lemeng Dong
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
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Chemotropic Assay for Testing Fungal Response to Strigolactones and Strigolactone-Like Compounds. Methods Mol Biol 2021. [PMID: 34028682 DOI: 10.1007/978-1-0716-1429-7_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Current knowledge on the mechanism of strigolactones (SLs) as signaling molecules during specific interactions in the rhizosphere is mainly related to the control of germination of parasitic weed seeds and hyphal branching of arbuscular mycorrhizal fungi. Thus, the role of plant secreted SLs in regulating the growth and development of root-colonizing fungi still remains controversial. Fusarium oxysporum can sense and respond to extracellular signals through oriented germ tube emergence and redirectioning of hyphal growth toward gradients of nutrients, sex pheromones, or plant root exudates. However, chemoattractant activity of SLs against microorganisms living in the soil has not been tested so far. Here we propose a quantitative chemotropic assay to understand if and how soil fungi could sense gradients of SLs and SLs-like sources. In the example case of F. oxysporum, hyphae of fungal representative mutants preferentially grow toward the synthetic SL analog GR24; and this chemotropic response requires conserved elements of the fungal invasive growth mitogen-activated protein kinase (MAPK) cascade.
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Changenet V, Macadré C, Boutet-Mercey S, Magne K, Januario M, Dalmais M, Bendahmane A, Mouille G, Dufresne M. Overexpression of a Cytochrome P450 Monooxygenase Involved in Orobanchol Biosynthesis Increases Susceptibility to Fusarium Head Blight. FRONTIERS IN PLANT SCIENCE 2021; 12:662025. [PMID: 33868356 PMCID: PMC8048717 DOI: 10.3389/fpls.2021.662025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/11/2021] [Indexed: 05/28/2023]
Abstract
Fusarium Head Blight (FHB) is a cereal disease caused primarily by the ascomycete fungus Fusarium graminearum with public health issues due to the production of mycotoxins including deoxynivalenol (DON). Genetic resistance is an efficient protection means and numerous quantitative trait loci have been identified, some of them related to the production of resistance metabolites. In this study, we have functionally characterized the Brachypodium distachyon BdCYP711A29 gene encoding a cytochrome P450 monooxygenase (CYP). We showed that BdCYP711A29 belongs to an oligogenic family of five members. However, following infection by F. graminearum, BdCYP711A29 is the only copy strongly transcriptionally induced in a DON-dependent manner. The BdCYP711A29 protein is homologous to the Arabidopsis thaliana MAX1 and Oryza sativa MAX1-like CYPs representing key components of the strigolactone biosynthesis. We show that BdCYP711A29 is likely involved in orobanchol biosynthesis. Alteration of the BdCYP711A29 sequence or expression alone does not modify plant architecture, most likely because of functional redundancy with the other copies. B. distachyon lines overexpressing BdCYP711A29 exhibit an increased susceptibility to F. graminearum, although no significant changes in defense gene expression were detected. We demonstrate that both orobanchol and exudates of Bd711A29 overexpressing lines stimulate the germination of F. graminearum macroconidia. We therefore hypothesize that orobanchol is a susceptibility factor to FHB.
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Affiliation(s)
- Valentin Changenet
- Université Paris-Saclay, CNRS, INRAE, University of Evry, Institute of Plant Sciences Paris-Saclay, Orsay, France
- Université de Paris, Institute of Plant Sciences Paris-Saclay, Orsay, France
| | - Catherine Macadré
- Université Paris-Saclay, CNRS, INRAE, University of Evry, Institute of Plant Sciences Paris-Saclay, Orsay, France
- Université de Paris, Institute of Plant Sciences Paris-Saclay, Orsay, France
| | - Stéphanie Boutet-Mercey
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, Versailles, France
| | - Kévin Magne
- Université Paris-Saclay, CNRS, INRAE, University of Evry, Institute of Plant Sciences Paris-Saclay, Orsay, France
- Université de Paris, Institute of Plant Sciences Paris-Saclay, Orsay, France
| | - Mélanie Januario
- Université Paris-Saclay, CNRS, INRAE, University of Evry, Institute of Plant Sciences Paris-Saclay, Orsay, France
- Université de Paris, Institute of Plant Sciences Paris-Saclay, Orsay, France
| | - Marion Dalmais
- Université Paris-Saclay, CNRS, INRAE, University of Evry, Institute of Plant Sciences Paris-Saclay, Orsay, France
- Université de Paris, Institute of Plant Sciences Paris-Saclay, Orsay, France
| | - Abdelhafid Bendahmane
- Université Paris-Saclay, CNRS, INRAE, University of Evry, Institute of Plant Sciences Paris-Saclay, Orsay, France
- Université de Paris, Institute of Plant Sciences Paris-Saclay, Orsay, France
| | - Grégory Mouille
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, Versailles, France
| | - Marie Dufresne
- Université Paris-Saclay, CNRS, INRAE, University of Evry, Institute of Plant Sciences Paris-Saclay, Orsay, France
- Université de Paris, Institute of Plant Sciences Paris-Saclay, Orsay, France
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Aliche EB, Screpanti C, De Mesmaeker A, Munnik T, Bouwmeester HJ. Science and application of strigolactones. THE NEW PHYTOLOGIST 2020; 227:1001-1011. [PMID: 32067235 PMCID: PMC7384091 DOI: 10.1111/nph.16489] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/11/2020] [Indexed: 05/16/2023]
Abstract
Strigolactones (SLs) represent a class of plant hormones that regulate developmental processes and play a role in the response of plants to various biotic and abiotic stresses. Both in planta hormonal roles and ex planta signalling effects of SLs are potentially interesting agricultural targets. In this review, we explore various aspects of SL function and highlight distinct areas of agriculture that may benefit from the use of synthetic SL analogues, and we identify possible bottlenecks. Our objective is to identify where the contributions of science and stakeholders are still needed to achieve harnessing the benefits of SLs for a sustainable agriculture of the near future.
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Affiliation(s)
- Ernest B. Aliche
- Plant Hormone BiologySwammerdam Institute for Life SciencesUniversity of AmsterdamScience Park 904Amsterdam1098 XHthe Netherlands
| | - Claudio Screpanti
- Chemical ResearchSyngenta Crop Protection AGSchaffhausenstrasse 101CH‐4332SteinSwitzerland
| | - Alain De Mesmaeker
- Chemical ResearchSyngenta Crop Protection AGSchaffhausenstrasse 101CH‐4332SteinSwitzerland
| | - Teun Munnik
- Plant Cell BiologySwammerdam Institute for Life SciencesUniversity of AmsterdamScience Park 904Amsterdam1098 XHthe Netherlands
| | - Harro J. Bouwmeester
- Plant Hormone BiologySwammerdam Institute for Life SciencesUniversity of AmsterdamScience Park 904Amsterdam1098 XHthe Netherlands
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11
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Mitochondrial Inheritance in Phytopathogenic Fungi-Everything Is Known, or Is It? Int J Mol Sci 2020; 21:ijms21113883. [PMID: 32485941 PMCID: PMC7312866 DOI: 10.3390/ijms21113883] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 05/26/2020] [Accepted: 05/28/2020] [Indexed: 12/19/2022] Open
Abstract
Mitochondria are important organelles in eukaryotes that provide energy for cellular processes. Their function is highly conserved and depends on the expression of nuclear encoded genes and genes encoded in the organellar genome. Mitochondrial DNA replication is independent of the replication control of nuclear DNA and as such, mitochondria may behave as selfish elements, so they need to be controlled, maintained and reliably inherited to progeny. Phytopathogenic fungi meet with special environmental challenges within the plant host that might depend on and influence mitochondrial functions and services. We find that this topic is basically unexplored in the literature, so this review largely depends on work published in other systems. In trying to answer elemental questions on mitochondrial functioning, we aim to introduce the aspect of mitochondrial functions and services to the study of plant-microbe-interactions and stimulate phytopathologists to consider research on this important organelle in their future projects.
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12
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Hyphal branching in filamentous fungi. Dev Biol 2019; 451:35-39. [DOI: 10.1016/j.ydbio.2019.02.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/11/2019] [Accepted: 02/23/2019] [Indexed: 12/21/2022]
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13
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Lanfranco L, Fiorilli V, Venice F, Bonfante P. Strigolactones cross the kingdoms: plants, fungi, and bacteria in the arbuscular mycorrhizal symbiosis. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:2175-2188. [PMID: 29309622 DOI: 10.1093/jxb/erx432] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 11/10/2017] [Indexed: 05/20/2023]
Abstract
Strigolactones (SLs) first evolved as regulators of simple developmental processes in very ancient plant lineages, and then assumed new roles to sustain the increasing biological complexity of land plants. Their versatility is also shown by the fact that during evolution they have been exploited, once released in the rhizosphere, as a communication system towards plant-interacting organisms even belonging to different kingdoms. Here, we reviewed the impact of SLs on soil microbes, paying particular attention to arbuscular mycorrhizal fungi (AMF). SLs induce several responses in AMF, including spore germination, hyphal branching, mitochondrial metabolism, transcriptional reprogramming, and production of chitin oligosaccharides which, in turn, stimulate early symbiotic responses in the host plant. In the specific case study of the AMF Gigaspora margarita, SLs are also perceived, directly or indirectly, by the well-characterized population of endobacteria, with an increase of bacterial divisions and the activation of specific transcriptional responses. The dynamics of SLs during AM root colonization were also surveyed. Although not essential for the establishment of this mutualistic association, SLs act as positive regulators as they are relevant to achieve the full extent of colonization. This possibly occurs through a complex crosstalk with other hormones such as auxin, abscisic acid, and gibberellins.
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Affiliation(s)
- Luisa Lanfranco
- Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy
| | - Valentina Fiorilli
- Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy
| | - Francesco Venice
- Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy
| | - Paola Bonfante
- Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy
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Rozpądek P, Domka AM, Nosek M, Ważny R, Jędrzejczyk RJ, Wiciarz M, Turnau K. The Role of Strigolactone in the Cross-Talk Between Arabidopsis thaliana and the Endophytic Fungus Mucor sp. Front Microbiol 2018; 9:441. [PMID: 29615990 PMCID: PMC5867299 DOI: 10.3389/fmicb.2018.00441] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 02/26/2018] [Indexed: 01/24/2023] Open
Abstract
Over the last years the role of fungal endophytes in plant biology has been extensively studied. A number of species were shown to positively affect plant growth and fitness, thus attempts have been made to utilize these microorganisms in agriculture and phytoremediation. Plant-fungi symbiosis requires multiple metabolic adjustments of both of the interacting organisms. The mechanisms of these adaptations are mostly unknown, however, plant hormones seem to play a central role in this process. The plant hormone strigolactone (SL) was previously shown to activate hyphae branching of mycorrhizal fungi and to negatively affect pathogenic fungi growth. Its role in the plant-endophytic fungi interaction is unknown. The effect of the synthetic SL analog GR24 on the endophytic fungi Mucor sp. growth, respiration, H2O2 production and the activity of antioxidant enzymes was evaluated. We found fungi colony growth rate was decreased in a GR24 concentration dependent manner. Additionally, the fungi accumulated more H2O2 what was accompanied by an altered activity of antioxidant enzymes. Symbiosis with Mucor sp. positively affected Arabidopsis thaliana growth, but SL was necessary for the establishment of the beneficial interaction. A. thaliana biosynthesis mutants max1 and max4, but not the SL signaling mutant max2 did not develop the beneficial phenotype. The negative growth response was correlated with alterations in SA homeostasis and a significant upregulation of genes encoding selected plant defensins. The fungi were also shown to be able to decompose SL in planta and to downregulate the expression of SL biosynthesis genes. Additionally, we have shown that GR24 treatment with a dose of 1 μM activates the production of SA in A. thaliana. The results presented here provide evidence for a role of SL in the plant-endophyte cross-talk during the mutualistic interaction between Arabidopsis thaliana and Mucor sp.
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Affiliation(s)
- Piotr Rozpądek
- Małopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland
| | - Agnieszka M. Domka
- Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
| | - Michał Nosek
- Institute of Biology, Pedagogical University of Kraków, Kraków, Poland
| | - Rafał Ważny
- Małopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland
| | | | - Monika Wiciarz
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Katarzyna Turnau
- Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
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15
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De Cuyper C, Goormachtig S. Strigolactones in the Rhizosphere: Friend or Foe? MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2017; 30:683-690. [PMID: 28598262 DOI: 10.1094/mpmi-02-17-0051-cr] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Strigolactones are well-known endogenous plant hormones that play a major role in planta by influencing different physiological processes. Moreover, ex planta, strigolactones are important signaling molecules in root exudates and function as host detection cues to launch mutualistic interactions with arbuscular mycorrhizal fungi in the rhizosphere. However, parasitic plants belonging to the Orobanchaceae family hijacked this communication system to stimulate their seed germination when in close proximity to the roots of a suitable host. As a result, the secretion of strigolactones by the plant can have both favorable and detrimental outcomes. Here, we discuss these dual positive and negative effects of strigolactones and we provide a detailed overview on the role of these molecules in the complex dialogs between plants and different organisms in the rhizosphere.
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Affiliation(s)
- Carolien De Cuyper
- Department of Plant Biotechnology and Bioinformatics, Ghent University, and Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
| | - Sofie Goormachtig
- Department of Plant Biotechnology and Bioinformatics, Ghent University, and Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
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16
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De Cuyper C, Struk S, Braem L, Gevaert K, De Jaeger G, Goormachtig S. Strigolactones, karrikins and beyond. PLANT, CELL & ENVIRONMENT 2017; 40:1691-1703. [PMID: 28558130 DOI: 10.1111/pce.12996] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 05/24/2017] [Accepted: 05/24/2017] [Indexed: 05/12/2023]
Abstract
The plant hormones strigolactones are synthesized from carotenoids and signal via the α/β hydrolase DWARF 14 (D14) and the F-box protein MORE AXILLARY GROWTH 2 (MAX2). Karrikins, molecules produced upon fire, share MAX2 for signalling, but depend on the D14 paralog KARRIKIN INSENSITIVE 2 (KAI2) for perception with strong evidence that the MAX2-KAI2 protein complex might also recognize so far unknown plant-made karrikin-like molecules. Thus, the phenotypes of the max2 mutants are the complex consequence of a loss of both D14-dependent and KAI2-dependent signalling, hence, the reason why some biological roles, attributed to strigolactones based on max2 phenotypes, could never be observed in d14 or in the strigolactone-deficient max3 and max4 mutants. Moreover, the broadly used synthetic strigolactone analog rac-GR24 has been shown to mimic strigolactone as well as karrikin(-like) signals, providing an extra level of complexity in the distinction of the unique and common roles of both molecules in plant biology. Here, a critical overview is provided of the diverse biological processes regulated by strigolactones and/or karrikins. These two growth regulators are considered beyond their boundaries, and the importance of the yet unknown karrikin-like molecules is discussed as well.
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Affiliation(s)
- Carolien De Cuyper
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| | - Sylwia Struk
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| | - Lukas Braem
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
- Department of Biochemistry, Ghent University, 9000, Ghent, Belgium
- Medical Biotechnology Center, VIB, 9000, Ghent, Belgium
| | - Kris Gevaert
- Department of Biochemistry, Ghent University, 9000, Ghent, Belgium
- Medical Biotechnology Center, VIB, 9000, Ghent, Belgium
| | - Geert De Jaeger
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| | - Sofie Goormachtig
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
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17
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Oancea F, Georgescu E, Matusova R, Georgescu F, Nicolescu A, Raut I, Jecu ML, Vladulescu MC, Vladulescu L, Deleanu C. New Strigolactone Mimics as Exogenous Signals for Rhizosphere Organisms. Molecules 2017; 22:E961. [PMID: 28598371 PMCID: PMC6152683 DOI: 10.3390/molecules22060961] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 06/06/2017] [Accepted: 06/07/2017] [Indexed: 11/16/2022] Open
Abstract
The importance of strigolactones in plant biology prompted us to synthesize simplified strigolactone mimics effective as exogenous signals for rhizosphere organisms. New strigolactone mimics easily derived from simple and available starting materials in significant amounts were prepared and fully characterized. These compounds contain an aromatic or heterocyclic ring, usually present in various bioactive molecules, connected by an ether link to a furan-2-one moiety. The new synthesized strigolactone mimics were confirmed to be active on plant pathogenic fungi and parasitic weed seeds.
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Affiliation(s)
- Florin Oancea
- National Research & Development Institute for Chemistry & Petrochemistry-ICECHIM, Spl. Independentei 202, RO-060021 Bucharest, Romania.
| | - Emilian Georgescu
- Research Center Oltchim, St. Uzinei 1, RO-240050 Ramnicu Valcea, Romania.
| | - Radoslava Matusova
- Plant Science and Biodiversity Center SAS, Institute of Plant Genetics and Biotechnology, PO Box 39A, 95007 Nitra, Slovakia.
| | - Florentina Georgescu
- Research Department Teso Spec S. R. L., Str. Muncii 53, RO-915200 Fundulea, Romania.
| | - Alina Nicolescu
- Centre of Organic Chemistry, Romanian Academy, Spl. Independentei 202B, RO-060023 Bucharest, Romania.
- Institute of Macromolecular Chemistry, Romanian Academy, Aleea Grigore Ghica Voda 41-A, 700487 Iasi, Romania.
| | - Iuliana Raut
- National Research & Development Institute for Chemistry & Petrochemistry-ICECHIM, Spl. Independentei 202, RO-060021 Bucharest, Romania.
| | - Maria-Luiza Jecu
- National Research & Development Institute for Chemistry & Petrochemistry-ICECHIM, Spl. Independentei 202, RO-060021 Bucharest, Romania.
| | | | - Lucian Vladulescu
- Research Department Teso Spec S. R. L., Str. Muncii 53, RO-915200 Fundulea, Romania.
| | - Calin Deleanu
- Centre of Organic Chemistry, Romanian Academy, Spl. Independentei 202B, RO-060023 Bucharest, Romania.
- Institute of Macromolecular Chemistry, Romanian Academy, Aleea Grigore Ghica Voda 41-A, 700487 Iasi, Romania.
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18
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Abstract
Strigolactones are a structurally diverse class of plant hormones that control many aspects of shoot and root growth. Strigolactones are also exuded by plants into the rhizosphere, where they promote symbiotic interactions with arbuscular mycorrhizal fungi and germination of root parasitic plants in the Orobanchaceae family. Therefore, understanding how strigolactones are made, transported, and perceived may lead to agricultural innovations as well as a deeper knowledge of how plants function. Substantial progress has been made in these areas over the past decade. In this review, we focus on the molecular mechanisms, core developmental roles, and evolutionary history of strigolactone signaling. We also propose potential translational applications of strigolactone research to agriculture.
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Affiliation(s)
- Mark T Waters
- School of Molecular Sciences and Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Perth 6009, Australia;
| | - Caroline Gutjahr
- Genetics, Faculty of Biology, LMU Munich, 82152 Martinsried, Germany;
| | - Tom Bennett
- School of Biology, University of Leeds, Leeds LS2 9JT, United Kingdom;
| | - David C Nelson
- Department of Botany and Plant Sciences, University of California, Riverside, California 92521;
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