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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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2
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Russo A, Winkler JB, Ghirardo A, Monti MM, Pollastri S, Ruocco M, Schnitzler JP, Loreto F. Interaction with the entomopathogenic fungus Beauveria bassiana influences tomato phenome and promotes resistance to Botrytis cinerea infection. FRONTIERS IN PLANT SCIENCE 2023; 14:1309747. [PMID: 38173923 PMCID: PMC10762804 DOI: 10.3389/fpls.2023.1309747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 11/29/2023] [Indexed: 01/05/2024]
Abstract
Plants are central to complex networks of multitrophic interactions. Increasing evidence suggests that beneficial microorganisms (BMs) may be used as plant biostimulants and pest biocontrol agents. We investigated whether tomato (Solanum lycopersicum) plants are thoroughly colonized by the endophytic and entomopathogenic fungus Beauveria bassiana, and how such colonization affects physiological parameters and the phenotype of plants grown under unstressed conditions or exposed to the pathogenic fungus Botrytis cinerea. As a positive control, a strain of the well-known biocontrol agent and growth inducer Trichoderma afroharzianum was used. As multitrophic interactions are often driven by (or have consequences on) volatile organic compounds (VOCs) released by plants constitutively or after induction by abiotic or biotic stresses, VOC emissions were also studied. Both B. bassiana and T. afroharzianum induced a significant but transient (one to two-day-long) reduction of stomatal conductance, which may indicate rapid activation of defensive (rejection) responses, but also limited photosynthesis. At later stages, our results demonstrated a successful and complete plant colonization by B. bassiana, which induced higher photosynthesis and lower respiration rates, improved growth of roots, stems, leaves, earlier flowering, higher number of fruits and yield in tomato plants. Beauveria bassiana also helped tomato plants fight B. cinerea, whose symptoms in leaves were almost entirely relieved with respect to control plants. Less VOCs were emitted when plants were colonized by B. bassiana or infected by B. cinerea, alone or in combination, suggesting no activation of VOC-dependent defensive mechanisms in response to both fungi.
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Affiliation(s)
- Assunta Russo
- University of Naples Federico II, Department of Agricultural Sciences, Portici, Italy
- National Research Council of Italy, Institute for Sustainable Plant Protection (CNR-IPSP), Portici, Italy
| | - Jana Barbro Winkler
- Helmholtz Zentrum München, Research Unit Environmental Simulation, Neuherberg, Germany
| | - Andrea Ghirardo
- Helmholtz Zentrum München, Research Unit Environmental Simulation, Neuherberg, Germany
| | - Maurilia M. Monti
- National Research Council of Italy, Institute for Sustainable Plant Protection (CNR-IPSP), Portici, Italy
| | - Susanna Pollastri
- National Research Council of Italy, Institute for Sustainable Plant Protection (CNR-IPSP), Portici, Italy
| | - Michelina Ruocco
- National Research Council of Italy, Institute for Sustainable Plant Protection (CNR-IPSP), Portici, Italy
| | - Jörg-Peter Schnitzler
- Helmholtz Zentrum München, Research Unit Environmental Simulation, Neuherberg, Germany
| | - Francesco Loreto
- National Research Council of Italy, Institute for Sustainable Plant Protection (CNR-IPSP), Portici, Italy
- Department of Biology, University of Naples Federico II, Naples, Italy
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3
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Proietti S, Falconieri GS, Bertini L, Pascale A, Bizzarri E, Morales-Sanfrutos J, Sabidó E, Ruocco M, Monti MM, Russo A, Dziurka K, Ceci M, Loreto F, Caruso C. Beauveria bassiana rewires molecular mechanisms related to growth and defense in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:4225-4243. [PMID: 37094092 PMCID: PMC10400115 DOI: 10.1093/jxb/erad148] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 04/21/2023] [Indexed: 05/03/2023]
Abstract
Plant roots can exploit beneficial associations with soil-inhabiting microbes, promoting growth and expanding the immune capacity of the host plant. In this work, we aimed to provide new information on changes occurring in tomato interacting with the beneficial fungus Beauveria bassiana. The tomato leaf proteome revealed perturbed molecular pathways during the establishment of the plant-fungus relationship. In the early stages of colonization (5-7 d), proteins related to defense responses to the fungus were down-regulated and proteins related to calcium transport were up-regulated. At later time points (12-19 d after colonization), up-regulation of molecular pathways linked to protein/amino acid turnover and to biosynthesis of energy compounds suggests beneficial interaction enhancing plant growth and development. At the later stage, the profile of leaf hormones and related compounds was also investigated, highlighting up-regulation of those related to plant growth and defense. Finally, B. bassiana colonization was found to improve plant resistance to Botrytis cinerea, impacting plant oxidative damage. Overall, our findings further expand current knowledge on the possible mechanisms underlying the beneficial role of B. bassiana in tomato plants.
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Affiliation(s)
- Silvia Proietti
- Department of Ecological and Biological Sciences, University of Tuscia, largo dell’Università snc, 01100 Viterbo, Italy
| | - Gaia Salvatore Falconieri
- Department of Ecological and Biological Sciences, University of Tuscia, largo dell’Università snc, 01100 Viterbo, Italy
| | - Laura Bertini
- Department of Ecological and Biological Sciences, University of Tuscia, largo dell’Università snc, 01100 Viterbo, Italy
| | - Alberto Pascale
- Plant-Microbe Interactions, Department of Biology, Science for Life, Utrecht University, Padualaan 8, 3584 CH Utrecht, Netherlands
| | - Elisabetta Bizzarri
- Department of Ecological and Biological Sciences, University of Tuscia, largo dell’Università snc, 01100 Viterbo, Italy
| | - Julia Morales-Sanfrutos
- Proteomics Unit, Centre de Regulació Genòmica, Barcelona Institute of Science and Technology (BIST), Carrer Dr. Aiguader 88, 08003 Barcelona, Spain
- Proteomics Unit, Universitat Pompeu Fabra, Carrer Dr Aiguader 88, 08003 Barcelona, Spain
| | - Eduard Sabidó
- Proteomics Unit, Centre de Regulació Genòmica, Barcelona Institute of Science and Technology (BIST), Carrer Dr. Aiguader 88, 08003 Barcelona, Spain
- Proteomics Unit, Universitat Pompeu Fabra, Carrer Dr Aiguader 88, 08003 Barcelona, Spain
| | - Michelina Ruocco
- Institute for Sustainable Plant Protection (IPSP-CNR), Piazzale Enrico Fermi, 1, 80055 Portici (NA), Italy
| | - Maurilia M Monti
- Institute for Sustainable Plant Protection (IPSP-CNR), Piazzale Enrico Fermi, 1, 80055 Portici (NA), Italy
| | - Assunta Russo
- Institute for Sustainable Plant Protection (IPSP-CNR), Piazzale Enrico Fermi, 1, 80055 Portici (NA), Italy
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055 Portici (NA), Italy
| | - Kinga Dziurka
- Department of Biotechnology, The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland
| | - Marcello Ceci
- Department of Ecological and Biological Sciences, University of Tuscia, largo dell’Università snc, 01100 Viterbo, Italy
| | - Francesco Loreto
- Department of Biology, Via Cinthia, University of Naples Federico II, 80126, Naples, Italy
| | - Carla Caruso
- Department of Ecological and Biological Sciences, University of Tuscia, largo dell’Università snc, 01100 Viterbo, Italy
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Woo SL, Hermosa R, Lorito M, Monte E. Trichoderma: a multipurpose, plant-beneficial microorganism for eco-sustainable agriculture. Nat Rev Microbiol 2023; 21:312-326. [PMID: 36414835 DOI: 10.1038/s41579-022-00819-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2022] [Indexed: 11/24/2022]
Abstract
Trichoderma is a cosmopolitan and opportunistic ascomycete fungal genus including species that are of interest to agriculture as direct biological control agents of phytopathogens. Trichoderma utilizes direct antagonism and competition, particularly in the rhizosphere, where it modulates the composition of and interactions with other microorganisms. In its colonization of plants, on the roots or as an endophyte, Trichoderma has evolved the capacity to communicate with the plant and produce numerous multifaceted benefits to its host. The intricacy of this plant-microorganism association has stimulated a marked interest in research on Trichoderma, ranging from its capacity as a plant growth promoter to its ability to prime local and systemic defence responses against biotic and abiotic stresses and to activate transcriptional memory affecting plant responses to future stresses. This Review discusses the ecophysiology and diversity of Trichoderma and the complexity of its relationships in the agroecosystem, highlighting its potential as a direct and indirect biological control agent, biostimulant and biofertilizer, which are useful multipurpose properties for agricultural applications. We also highlight how the present legislative framework might accommodate the demonstrated evidence of Trichoderma proficiency as a plant-beneficial microorganism contributing towards eco-sustainable agriculture.
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Affiliation(s)
- Sheridan L Woo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy.
| | - Rosa Hermosa
- Department of Microbiology and Genetics, Institute for Agribiotechnology Research (CIALE), University of Salamanca, Salamanca, Spain
| | - Matteo Lorito
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Enrique Monte
- Department of Microbiology and Genetics, Institute for Agribiotechnology Research (CIALE), University of Salamanca, Salamanca, Spain
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Hamouzová K, Sen MK, Bharati R, Košnarová P, Chawdhery MRA, Roy A, Soukup J. Calcium signalling in weeds under herbicide stress: An outlook. FRONTIERS IN PLANT SCIENCE 2023; 14:1135845. [PMID: 37035053 PMCID: PMC10080077 DOI: 10.3389/fpls.2023.1135845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
The continuous use of herbicides for controlling weeds has led to the evolution of resistance to all major herbicidal modes of action globally. Every year, new cases of herbicide resistance are reported. Resistance is still in progress in many species, which must be stopped before it becomes a worldwide concern. Several herbicides are known to cause stressful conditions that resemble plant abiotic stresses. Variation in intracellular calcium (Ca2+) concentration is a primary event in a wide range of biological processes in plants, including adaptation to various biotic and abiotic stresses. Ca2+ acts as a secondary messenger, connecting various environmental stimuli to different biological processes, especially during stress rejoindering in plants. Even though many studies involving Ca2+ signalling in plants have been published, there have been no studies on the roles of Ca2+ signalling in herbicide stress response. Hence, this mini-review will highlight the possible sensing and molecular communication via Ca2+ signals in weeds under herbicide stress. It will also discuss some critical points regarding integrating the sensing mechanisms of multiple stress conditions and subsequent molecular communication. These signalling responses must be addressed in the future, enabling researchers to discover new herbicidal targets.
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Affiliation(s)
- Katerina Hamouzová
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Madhab Kumar Sen
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
- Excellent Team for Mitigation (E.T.M.), Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Rohit Bharati
- Department of Crop Sciences and Agroforestry, The Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Pavlína Košnarová
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Md Rafique Ahasan Chawdhery
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Amit Roy
- Excellent Team for Mitigation (E.T.M.), Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Josef Soukup
- Department of Agroecology and Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
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6
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Guzmán-Guzmán P, Kumar A, de los Santos-Villalobos S, Parra-Cota FI, Orozco-Mosqueda MDC, Fadiji AE, Hyder S, Babalola OO, Santoyo G. Trichoderma Species: Our Best Fungal Allies in the Biocontrol of Plant Diseases-A Review. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12030432. [PMID: 36771517 PMCID: PMC9921048 DOI: 10.3390/plants12030432] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/08/2023] [Accepted: 01/13/2023] [Indexed: 06/02/2023]
Abstract
Biocontrol agents (BCA) have been an important tool in agriculture to prevent crop losses due to plant pathogens infections and to increase plant food production globally, diminishing the necessity for chemical pesticides and fertilizers and offering a more sustainable and environmentally friendly option. Fungi from the genus Trichoderma are among the most used and studied microorganisms as BCA due to the variety of biocontrol traits, such as parasitism, antibiosis, secondary metabolites (SM) production, and plant defense system induction. Several Trichoderma species are well-known mycoparasites. However, some of those species can antagonize other organisms such as nematodes and plant pests, making this fungus a very versatile BCA. Trichoderma has been used in agriculture as part of innovative bioformulations, either just Trichoderma species or in combination with other plant-beneficial microbes, such as plant growth-promoting bacteria (PGPB). Here, we review the most recent literature regarding the biocontrol studies about six of the most used Trichoderma species, T. atroviride, T. harzianum, T. asperellum, T. virens, T. longibrachiatum, and T. viride, highlighting their biocontrol traits and the use of these fungal genera in Trichoderma-based formulations to control or prevent plant diseases, and their importance as a substitute for chemical pesticides and fertilizers.
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Affiliation(s)
- Paulina Guzmán-Guzmán
- Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58030, Mexico
| | - Ajay Kumar
- Department of Postharvest Science, ARO, Volcani Center, Bet Dagan 50250, Israel
| | | | - Fannie I. Parra-Cota
- Campo Experimental Norman E. Borlaug, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Ciudad Obregón 85000, Mexico
| | | | - Ayomide Emmanuel Fadiji
- Food Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa
| | - Sajjad Hyder
- Department of Botany, Government College Women University Sialkot, Sialkot 51310, Pakistan
| | - Olubukola Oluranti Babalola
- Food Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa
| | - Gustavo Santoyo
- Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58030, Mexico
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Rogato A, Valkov VT, Chiurazzi M. LjNRT2.3 plays a hierarchical role in the control of high affinity transport system for root nitrate acquisition in Lotus japonicus. FRONTIERS IN PLANT SCIENCE 2022; 13:1042513. [PMID: 36438153 PMCID: PMC9687105 DOI: 10.3389/fpls.2022.1042513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Nitrate is a key mineral nutrient required for plant growth and development. Plants have evolved sophisticated mechanisms to respond to changes of nutritional availability in the surrounding environment and the optimization of root nitrate acquisition under nitrogen starvation is crucial to cope with unfavoured condition of growth. In this study we present a general description of the regulatory transcriptional and spatial profile of expression of the Lotus japonicus nitrate transporter NRT2 family. Furthermore, we report a phenotypic characterization of two independent Ljnrt2.3 knock out mutants indicating the involvement of the LjNRT2.3 gene in the root nitrate acquisition and lateral root elongation pathways occurring in response to N starvation conditions. We also report an epistatic relationship between LjNRT2.3 and LjNRT2.1 suggesting a combined mode of action of these two genes in order to optimize the Lotus response to a prolonged N starvation.
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Kohli SK, Khanna K, Bhardwaj R, Corpas FJ, Ahmad P. Nitric oxide, salicylic acid and oxidative stress: Is it a perfect equilateral triangle? PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 184:56-64. [PMID: 35636332 DOI: 10.1016/j.plaphy.2022.05.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Nitric oxide (NO) is an endogenous free radical involved in the regulation of a wide array of physio-biochemical phenomena in plants. The biological activity of NO directly depend on its cellular concentration which usually changes under stress conditions, it participates in maintaining cellular redox equilibrium and regulating target checkpoints which control switches among development and stress. It is one of the key players in plant signalling and a plethora of evidence supports its crosstalk with other phytohormones. NO and salicylic acid (SA) cooperation is also of great physiological relevance, where NO modulates the immune response by regulating SA linked target proteins i.e., non-expressor of pathogenesis-related genes (NPR-1 and NPR-2) and Group D bZIP (basic leucine zipper domain transcription factor). Many experimental data suggest a functional cooperative role between NO and SA in mitigating the plant oxidative stress which suggests that these relationships could constitute a metabolic "equilateral triangle".
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Affiliation(s)
- Sukhmeen Kaur Kohli
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Kanika Khanna
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - Francisco J Corpas
- Department of Biochemistry, Cell and Molecular Biology, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Parvaiz Ahmad
- Department of Botany, GDC, Pulwama, 192301, Jammu and Kashmir, India.
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9
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Identification and Functional Analysis of a Novel Hydrophobic Protein VdHP1 from Verticillium dahliae. Microbiol Spectr 2022; 10:e0247821. [PMID: 35377232 PMCID: PMC9045179 DOI: 10.1128/spectrum.02478-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Verticillium dahliae could cause destructive vascular wilt disease on hundreds of plant species around the world, including cotton. In this study, we characterized the function of a hydrophobin gene VdHP1 in pathogen development and pathogenicity. Results showed that VdHP1 could induce cell death and activate plant immune responses. The VdHP1 deletion mutants (ΔVdHP1) and the complement mutants (C-ΔVdHP1) were obtained by the homologous recombination method. The VdHP1 deletion mutants exhibited increased hydrophilicity, inhibited microsclerotial formation, and reduced spore smoothness. In addition, the deletion mutants were more sensitive to NaCl, while relatively insensitive to KCl and sorbitol. Mutants also had greater resistance to Congo red, UV radiation, and high temperature, which suggested that ΔVdHP1 strains have stronger resistance to abiotic stress in general. Different carbon source assays showed that the utilization ability of skim milk, cellulose, and starch was greatly enhanced in ΔVdHP1, compared with that of WT and complemented strains. Furthermore, VdHP1 did not affect mycelium penetration on cellophane but contributed to mycelium growth on surface of the living plant cells. The pathogenicity test found that the crude toxin content, colonization, and dispersal of ΔVdHP1 was significantly increased compared with the WT and complementary strains. In addition, cotton seedlings showed more severe wilting symptoms after inoculation with ΔVdHP1 strains. These results suggested that the hydrophobin VdHP1 negatively regulated the virulence of V. dahliae, and played an important role in development, adaptability, and pathogenicity in V. dahliae, which maybe provide a new viewpoint to further understand the molecular mechanisms of pathogen virulence. IMPORTANCE Verticillium dahliae is a soilborne fungal pathogen that causes a destructive vascular disease on a large number of plant hosts, resulting in great threat to agricultural production. In this study, it was illustrated that the hydrophobin VdHP1 could induce cell death and activate plant immune responses. VdHP1 affected the hydrophobicity of V. dahliae, and negatively regulated the strains resistant to stress, and the utilization ability of different carbon sources. In addition, VdHP1 did not affect mycelium penetration on cellophane but contributed to mycelium growth on surface of the living plant cells. The VdHP1 gene negatively regulated the total virulence, colonization, and dispersal of V. dahliae, with enhanced pathogenicity of mutant strains in this gene. These results suggested that the hydrophobin VdHP1 played an importance in development, adaptability, and pathogenicity in V. dahliae, and would provide a new viewpoint to further understand the molecular mechanisms of pathogen virulence.
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Dautt-Castro M, Jijón-Moreno S, Gómez-Hernández N, del Carmen González-López M, Hernández-Hernández EJ, Rosendo-Vargas MM, Rebolledo-Prudencio OG, Casas-Flores S. New Insights on the Duality of Trichoderma as a Phytopathogen Killer and a Plant Protector Based on an Integrated Multi-omics Perspective. Fungal Biol 2022. [DOI: 10.1007/978-3-030-91650-3_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Saravanakumar K, Sathiyaseelan A, Mariadoss AVA, Wang MH. Elicitor Proteins from Trichoderma for Biocontrol Products. Fungal Biol 2022. [DOI: 10.1007/978-3-030-91650-3_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Effects on Capsicum annuum Plants Colonized with Trichoderma atroviride P. Karst Strains Genetically Modified in Taswo1, a Gene Coding for a Protein with Expansin-like Activity. PLANTS 2021; 10:plants10091919. [PMID: 34579451 PMCID: PMC8468806 DOI: 10.3390/plants10091919] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/07/2021] [Accepted: 09/13/2021] [Indexed: 12/01/2022]
Abstract
Here, we analyzed the effects on Capsicum annuum plants of Trichoderma atroviride P. Karst strains altered in the expression of SWOLLENIN (SWO1), a protein with amorphogenic activity on plant cell wall components. Strains of T. atroviride that overexpressed the Taswo1 gene were constructed as well as deletion mutants. A novel, cheap and accurate method for assessing root colonization was developed. Colonization assays showed that the Taswo1 overexpressing strains invaded the host root better than the WT, resulting in a stronger plant growth-promoting effect. The expression of plant defense marker genes for both the systemic acquired resistance and induced systemic resistance pathways was enhanced in plants inoculated with Taswo1 overexpressing strains, while inoculation with deletion mutant strains resulted in a similar level of expression to that observed upon inoculation with the wild-type strain. Response to pathogen infection was also enhanced in the plants inoculated with the Taswo1 overexpressing strains, and surprisingly, an intermediate level of protection was achieved with the mutant strains. Tolerance to abiotic stresses was also higher in plants inoculated with the Taswo1 overexpressing strains but was similar in plants inoculated with the wild-type or the mutant strains. Compatible osmolyte production in drought conditions was studied. This study may contribute to improving Trichoderma biocontrol and biofertilization abilities.
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13
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Quo vadis: signaling molecules and small secreted proteins from mycorrhizal fungi at the early stage of mycorrhiza formation. Symbiosis 2021. [DOI: 10.1007/s13199-021-00793-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Vittozzi Y, Nadzieja M, Rogato A, Radutoiu S, Valkov VT, Chiurazzi M. The Lotus japonicus NPF3.1 Is a Nodule-Induced Gene That Plays a Positive Role in Nodule Functioning. FRONTIERS IN PLANT SCIENCE 2021; 12:688187. [PMID: 34220910 PMCID: PMC8253256 DOI: 10.3389/fpls.2021.688187] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/17/2021] [Indexed: 05/26/2023]
Abstract
Nitrogen-fixing nodules are new organs formed on legume roots as a result of the beneficial interaction with the soil bacteria, rhizobia. Proteins of the nitrate transporter 1/peptide transporter family (NPF) are largely represented in the subcategory of nodule-induced transporters identified in mature nodules. The role of nitrate as a signal/nutrient regulating nodule functioning has been recently highlighted in the literature, and NPFs may play a central role in both the permissive and inhibitory pathways controlling N2-fixation efficiency. In this study, we present the characterization of the Lotus japonicus LjNPF3.1 gene. LjNPF3.1 is upregulated in mature nodules. Promoter studies show transcriptional activation confined to the cortical region of both roots and nodules. Under symbiotic conditions, Ljnpf3.1-knockout mutant's display reduced shoot development and anthocyanin accumulation as a result of nutrient deprivation. Altogether, LjNPF3.1 plays a role in maximizing the beneficial outcome of the root nodule symbiosis.
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Affiliation(s)
- Ylenia Vittozzi
- Institute of Biosciences and Bioresources (IBBR), Italian National Research Council (CNR), Napoli, Italy
| | - Marcin Nadzieja
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Alessandra Rogato
- Institute of Biosciences and Bioresources (IBBR), Italian National Research Council (CNR), Napoli, Italy
| | - Simona Radutoiu
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Vladimir Totev Valkov
- Institute of Biosciences and Bioresources (IBBR), Italian National Research Council (CNR), Napoli, Italy
| | - Maurizio Chiurazzi
- Institute of Biosciences and Bioresources (IBBR), Italian National Research Council (CNR), Napoli, Italy
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15
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Krasitskaya VV, Bashmakova EE, Frank LA. Coelenterazine-Dependent Luciferases as a Powerful Analytical Tool for Research and Biomedical Applications. Int J Mol Sci 2020; 21:E7465. [PMID: 33050422 PMCID: PMC7590018 DOI: 10.3390/ijms21207465] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/05/2020] [Accepted: 10/07/2020] [Indexed: 12/19/2022] Open
Abstract
: The functioning of bioluminescent systems in most of the known marine organisms is based on the oxidation reaction of the same substrate-coelenterazine (CTZ), catalyzed by luciferase. Despite the diversity in structures and the functioning mechanisms, these enzymes can be united into a common group called CTZ-dependent luciferases. Among these, there are two sharply different types of the system organization-Ca2+-regulated photoproteins and luciferases themselves that function in accordance with the classical enzyme-substrate kinetics. Along with deep and comprehensive fundamental research on these systems, approaches and methods of their practical use as highly sensitive reporters in analytics have been developed. The research aiming at the creation of artificial luciferases and synthetic CTZ analogues with new unique properties has led to the development of new experimental analytical methods based on them. The commercial availability of many ready-to-use assay systems based on CTZ-dependent luciferases is also important when choosing them by first-time-users. The development of analytical methods based on these bioluminescent systems is currently booming. The bioluminescent systems under consideration were successfully applied in various biological research areas, which confirms them to be a powerful analytical tool. In this review, we consider the main directions, results, and achievements in research involving these luciferases.
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Affiliation(s)
- Vasilisa V. Krasitskaya
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia; (V.V.K.); (E.E.B.)
| | - Eugenia E. Bashmakova
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia; (V.V.K.); (E.E.B.)
| | - Ludmila A. Frank
- Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia; (V.V.K.); (E.E.B.)
- School of Fundamental Biology and Biotechnology, Siberian Federal University, 660041 Krasnoyarsk, Russia
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16
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Lang EAS, Bitencourt TA, Peres NTA, Lopes L, Silva LG, Cazzaniga RA, Rossi A, Martinez-Rossi NM. The stuA gene controls development, adaptation, stress tolerance, and virulence of the dermatophyte Trichophyton rubrum. Microbiol Res 2020; 241:126592. [PMID: 33002720 DOI: 10.1016/j.micres.2020.126592] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 08/29/2020] [Accepted: 09/11/2020] [Indexed: 12/19/2022]
Abstract
The APSES family, comprising of the transcriptional regulators Asm1p, Phd1p, Sok2p, Efg1p, and StuA, is found exclusively in fungi and has been reported to control several cellular processes in these organisms. However, its function in dermatophytes has not yet been completely understood. Here, we generated two null mutant strains by deleting the stuA gene in the dermatophyte Trichophyton rubrum, the most common clinical isolate obtained from human skin and nail mycoses. The functional characterization of the knocked-out strains revealed the involvement of stuA in germination, morphogenesis of conidia and hyphae, pigmentation, stress responses, and virulence. Although the mutant strains could grow under several nutritional conditions, growth on the keratin medium, human nails, and skin was impaired. The co-culture of stuA mutants with human keratinocytes revealed enhanced development. Moreover, a stuA mutant grown on the keratin substrate showed a marked decrease in the transcript numbers of the hydrophobin encoding gene (hypA), suggesting the involvement of stuA in the molecular mechanisms underlying mechanosensing during the fungi-host interaction. In addition, bioinformatics analyses revealed the potential involvement of StuA in different biological processes such as oxidation-reduction, phosphorylation, proteolysis, transcription/translation regulation, and carbohydrate metabolism. Cumulatively, the present study suggested that StuA is a crosstalk mediator of many pathways and is an integral component of the infection process, implying that it could be a potential target for antifungal therapy.
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Affiliation(s)
- Elza A S Lang
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Tamires A Bitencourt
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Nalu T A Peres
- Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Lucia Lopes
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Larissa G Silva
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rodrigo A Cazzaniga
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Antonio Rossi
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Nilce M Martinez-Rossi
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
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17
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Lombardi N, Salzano AM, Troise AD, Scaloni A, Vitaglione P, Vinale F, Marra R, Caira S, Lorito M, d’Errico G, Lanzuise S, Woo SL. Effect of Trichoderma Bioactive Metabolite Treatments on the Production, Quality, and Protein Profile of Strawberry Fruits. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7246-7258. [PMID: 32426974 PMCID: PMC8154561 DOI: 10.1021/acs.jafc.0c01438] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 05/30/2023]
Abstract
Fungi of the genus Trichoderma produce secondary metabolites having several biological activities that affect plant metabolism. We examined the effect of three Trichoderma bioactive metabolites (BAMs), namely, 6-pentyl-α-pyrone (6PP), harzianic acid (HA), and hydrophobin 1 (HYTLO1), on yield, fruit quality, and protein representation of strawberry plants. In particular, 6PP and HA increased the plant yield and number of fruits, when compared to control, while HYTLO1 promoted the growth of the roots and increased the total soluble solids content up to 19% and the accumulation of ascorbic acid and cyanidin 3-O-glucoside in red ripened fruits. Proteomic analysis showed that BAMs influenced the representation of proteins associated with the protein metabolism, response to stress/external stimuli, vesicle trafficking, carbon/energy, and secondary metabolism. Results suggest that the application of Trichoderma BAMs affects strawberry plant productivity and fruit quality and integrate previous observations on deregulated molecular processes in roots and leaves of Trichoderma-treated plants with original data on fruits.
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Affiliation(s)
- Nadia Lombardi
- Department
of Agricultural Sciences, University of
Naples Federico II, 80055 Portici, Naples, Italy
| | - Anna Maria Salzano
- Proteomics
& Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80131 Naples, Italy
| | - Antonio Dario Troise
- Department
of Agricultural Sciences, University of
Naples Federico II, 80055 Portici, Naples, Italy
- Proteomics
& Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80131 Naples, Italy
| | - Andrea Scaloni
- Proteomics
& Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80131 Naples, Italy
| | - Paola Vitaglione
- Department
of Agricultural Sciences, University of
Naples Federico II, 80055 Portici, Naples, Italy
| | - Francesco Vinale
- Department
of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80138 Naples, Italy
- Institute
for Sustainable Plant Protection, National
Research Council, 80055 Portici, Naples, Italy
| | - Roberta Marra
- Department
of Agricultural Sciences, University of
Naples Federico II, 80055 Portici, Naples, Italy
| | - Simonetta Caira
- Proteomics
& Mass Spectrometry Laboratory, ISPAAM, National Research Council, 80131 Naples, Italy
| | - Matteo Lorito
- Department
of Agricultural Sciences, University of
Naples Federico II, 80055 Portici, Naples, Italy
- Institute
for Sustainable Plant Protection, National
Research Council, 80055 Portici, Naples, Italy
- Task
Force on Microbiome Studies, University of Naples Federico II, 80131 Naples, Italy
| | - Giada d’Errico
- Department
of Agricultural Sciences, University of
Naples Federico II, 80055 Portici, Naples, Italy
| | - Stefania Lanzuise
- Department
of Agricultural Sciences, University of
Naples Federico II, 80055 Portici, Naples, Italy
| | - Sheridan Lois Woo
- Institute
for Sustainable Plant Protection, National
Research Council, 80055 Portici, Naples, Italy
- Task
Force on Microbiome Studies, University of Naples Federico II, 80131 Naples, Italy
- Department
of Pharmacy, University of Naples Federico
II, 80131 Naples, Italy
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18
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Rai KK, Pandey N, Rai SP. Salicylic acid and nitric oxide signaling in plant heat stress. PHYSIOLOGIA PLANTARUM 2020; 168:241-255. [PMID: 30843232 DOI: 10.1111/ppl.12958] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/09/2019] [Accepted: 03/02/2019] [Indexed: 05/28/2023]
Abstract
In agriculture, heat stress (HS) has become one of the eminent abiotic threats to crop growth, productivity and nutritional security because of the continuous increase in global mean temperature. Studies have annotated that the heat stress response (HSR) in plants is highly conserved, involving complex regulatory networks of various signaling and sensor molecules. In this context, the ubiquitous-signaling molecules salicylic acid (SA) and nitric oxide (NO) have diverted the attention of the plant science community because of their putative roles in plant abiotic and biotic stress tolerance. However, their involvement in the transcriptional regulatory networks in plant HS tolerance is still poorly understood. In this review, we have conceptualized current knowledge concerning how SA and NO sense HS in plants and how they trigger the HSR leading to the activation of transcriptional-signaling cascades. Fundamentals of functional components and signaling networks associated with molecular mechanisms involved in SA/NO-mediated HSR in plants have also been discussed. Increasing evidences have suggested the involvement of epigenetic modifications in the development of a 'stress memory', thereby provoking the role of epigenetic mechanisms in the regulation of plant's innate immunity under HS. Thus, we have also explored the recent advancements regarding the biological mechanisms and the underlying significance of epigenetic regulations involved in the activation of HS responsive genes and transcription factors by providing conceptual frameworks for understanding molecular mechanisms behind the 'transcriptional stress memory' as potential memory tools in the regulation of plant HSR.
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Affiliation(s)
- Krishna K Rai
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Neha Pandey
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
- Department of Botany, CMP Degree College, University of Allahabad, Prayagraj, India
| | - Shashi P Rai
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
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19
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Isolation and Characterization of Dominant Fungi from Rhizospheric Soil of Saussurea obvallata (DC.) Edgew. (Brahma Kamal) of the Indian Himalayan Region. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2019. [DOI: 10.22207/jpam.13.3.22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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20
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Ramírez-Valdespino CA, Casas-Flores S, Olmedo-Monfil V. Trichoderma as a Model to Study Effector-Like Molecules. Front Microbiol 2019; 10:1030. [PMID: 31156578 PMCID: PMC6529561 DOI: 10.3389/fmicb.2019.01030] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/24/2019] [Indexed: 11/24/2022] Open
Abstract
Plants are capable of perceiving microorganisms by coordinating processes to establish different forms of plant–microbe relationships. Plant colonization is governed in fungal and bacterial systems by secreted effector molecules, suppressing plant defense responses and modulating plant physiology to promote either virulence or compatibility. Proteins, secondary metabolites, and small RNAs have been described as effector molecules that use different mechanisms to establish the interaction. Effector molecules have been studied in more detail due to their involvement in harmful interactions, leading to a negative impact on agriculture. Recently, research groups have started to study the effectors in symbiotic interactions. Interestingly, most symbiotic effectors are members of the same families present in phytopathogens. Nevertheless, the quantity and ratio of secreted effectors depends on the microorganism and the host, suggesting a complex mechanism of recognition between the plant and their associated microorganisms. Fungi belonging to Trichoderma genus interact with plants by inducing their defense system and promoting plant growth. Research suggests that some of these effects are associated with effector molecules that Trichoderma delivers during the association with the plant. In this review, we will focus on the main findings concerning the effector molecules reported in Trichoderma spp. and their role during the interaction with plants, mainly in the molecular dialogue that takes place between them.
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Affiliation(s)
- Claudia A Ramírez-Valdespino
- División de Ciencias Naturales y Exactas, Departamento de Biología, Universidad de Guanajuato, Guanajuato, Mexico.,Laboratorio de Biohidrometalurgia, Departamento de Medio Ambiente y Energía, Centro de Investigación en Materiales Avanzados, Chihuahua, Mexico
| | - Sergio Casas-Flores
- Laboratorio de Genómica Funcional y Comparativa, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, Mexico
| | - Vianey Olmedo-Monfil
- División de Ciencias Naturales y Exactas, Departamento de Biología, Universidad de Guanajuato, Guanajuato, Mexico
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21
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Ramírez-Valdespino CA, Casas-Flores S, Olmedo-Monfil V. Trichoderma as a Model to Study Effector-Like Molecules. Front Microbiol 2019. [PMID: 31156578 DOI: 10.3389/pmic.2019.01030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023] Open
Abstract
Plants are capable of perceiving microorganisms by coordinating processes to establish different forms of plant-microbe relationships. Plant colonization is governed in fungal and bacterial systems by secreted effector molecules, suppressing plant defense responses and modulating plant physiology to promote either virulence or compatibility. Proteins, secondary metabolites, and small RNAs have been described as effector molecules that use different mechanisms to establish the interaction. Effector molecules have been studied in more detail due to their involvement in harmful interactions, leading to a negative impact on agriculture. Recently, research groups have started to study the effectors in symbiotic interactions. Interestingly, most symbiotic effectors are members of the same families present in phytopathogens. Nevertheless, the quantity and ratio of secreted effectors depends on the microorganism and the host, suggesting a complex mechanism of recognition between the plant and their associated microorganisms. Fungi belonging to Trichoderma genus interact with plants by inducing their defense system and promoting plant growth. Research suggests that some of these effects are associated with effector molecules that Trichoderma delivers during the association with the plant. In this review, we will focus on the main findings concerning the effector molecules reported in Trichoderma spp. and their role during the interaction with plants, mainly in the molecular dialogue that takes place between them.
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Affiliation(s)
- Claudia A Ramírez-Valdespino
- División de Ciencias Naturales y Exactas, Departamento de Biología, Universidad de Guanajuato, Guanajuato, Mexico
- Laboratorio de Biohidrometalurgia, Departamento de Medio Ambiente y Energía, Centro de Investigación en Materiales Avanzados, Chihuahua, Mexico
| | - Sergio Casas-Flores
- Laboratorio de Genómica Funcional y Comparativa, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, Mexico
| | - Vianey Olmedo-Monfil
- División de Ciencias Naturales y Exactas, Departamento de Biología, Universidad de Guanajuato, Guanajuato, Mexico
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