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Lu H, Zhou P, Li F, Wang Y, Gu J, Wang Y, Sun S, Zhang M, Wang X. Trichoderma guizhouense NJAU4742 augments morphophysiological responses, nutrient availability and photosynthetic efficacy of ornamental Ilex verticillata. TREE PHYSIOLOGY 2024; 44:tpae033. [PMID: 38501890 DOI: 10.1093/treephys/tpae033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/02/2024] [Indexed: 03/20/2024]
Abstract
Winterberry holly (Ilex verticillata [L.] A. Gray), a deciduous shrub producing glossy bright red berries, is a valuable ornamental and medicinal plant with good market prospects. However, the growth and development of I. verticillata are significantly affected by various stresses, and environmentally hazardous agrochemicals are often used to mitigate them. Trichoderma spp., ubiquitous soil-borne eco-friendly plant growth-promoting fungi, are potent biostimulants and biofertilizers and viable alternatives to agrochemicals for healthy and sustainable agriculture. In this study, the temporal efficacy of different dosages of the filamentous fungus Trichoderma guizhouense NJAU4742 in promoting morphophysiological responses of I. verticillata and the physicochemical properties and enzymatic activities of the substrate were investigated. Different concentrations of the strain T. guizhouense NJAU4742 spore suspension (C [0%], T1 [5%, v/m], T2 [10%, v/m] and T3 [15%, v/m]) were injected in the substrate contained in a pot in which 1-year-old I. verticillata was planted for temporal treatment (15, 45 and 75 days) under open-air conditions. The beneficial effects of T2 and/or T3 treatment for a long duration (75 days) were evident on the different root, aerial and photosynthetic traits; total contents of nitrogen (N), phosphorus (P) and potassium (K) in different tissues and the physicochemical properties of the substrate and its enzymatic activities (urease and invertase). Overall, the study revealed the potency of strain T. guizhouense NJAU4742 as a sustainable solution to improve the growth and development and ornamental value of I. verticillata.
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Affiliation(s)
- Huixin Lu
- Department of Landscape Architecture, College of Horticulture, Nanjing Agricultural University, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, No. 1 Weigang, Xuanwu District, Nanjing 210095, China
- Department of Plant Nutrition and Fertilizer, College of Resources and Environmental Sciences, Nanjing Agricultural University, No. 1 Weigang, Xuanwu District, Nanjing 210095, China
| | - Peng Zhou
- Jiangsu Academy of Forestry, 109 Danyang Road, Dongshanqiao, Jiangning District, Nanjing 211153, China
| | - Fei Li
- Jiangsu Academy of Forestry, 109 Danyang Road, Dongshanqiao, Jiangning District, Nanjing 211153, China
| | - Yanjie Wang
- Department of Landscape Architecture, College of Horticulture, Nanjing Agricultural University, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, No. 1 Weigang, Xuanwu District, Nanjing 210095, China
| | - Jiaying Gu
- Department of Landscape Architecture, College of Horticulture, Nanjing Agricultural University, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, No. 1 Weigang, Xuanwu District, Nanjing 210095, China
| | - Ying Wang
- Department of Landscape Architecture, College of Horticulture, Nanjing Agricultural University, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, No. 1 Weigang, Xuanwu District, Nanjing 210095, China
| | - Shubin Sun
- Department of Plant Nutrition and Fertilizer, College of Resources and Environmental Sciences, Nanjing Agricultural University, No. 1 Weigang, Xuanwu District, Nanjing 210095, China
| | - Min Zhang
- Jiangsu Academy of Forestry, 109 Danyang Road, Dongshanqiao, Jiangning District, Nanjing 211153, China
| | - Xiaowen Wang
- Department of Landscape Architecture, College of Horticulture, Nanjing Agricultural University, Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, No. 1 Weigang, Xuanwu District, Nanjing 210095, China
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Guo Z, Zhang J, Liu Z, Li Y, Li M, Meng Q, Yang Z, Luo Y, Zhang Q, Yan M. Trichoderma harzianum prevents red kidney bean root rot by increasing plant antioxidant enzyme activity and regulating the rhizosphere microbial community. Front Microbiol 2024; 15:1348680. [PMID: 38572240 PMCID: PMC10987954 DOI: 10.3389/fmicb.2024.1348680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 02/27/2024] [Indexed: 04/05/2024] Open
Abstract
Root rot is one of the main reasons for yield losses of red kidney bean (Phaseolus vulgaris) production. Pre-inoculation with Trichoderma harzianum can effectively lower the incidence of red kidney bean root rot. In this study, four treatments including CK (control), Fu13 (Fusarium oxysporum), T891 (T. harzianum) and T891 + Fu13 (T. harzianum + F. oxysporum) were arranged in a pot experiment to investigate how T891 affected the incidence and severity of root rot, plant growth, and changes of defense enzyme activity in red kidney bean plants. Community composition and diversity of the rhizosphere microbiota was evaluated through high-throughput sequencing, and co-occurrence network was analyzed. The results showed that when compared to the Fu13 treatment, pre-inoculation with T891 reduced the incidence and severity of red kidney bean root rot by 40.62 and 68.03% (p < 0.05), increased the root length, shoot length, total dry biomass by 48.63, 97.72, 122.17%. Upregulated activity of super-oxide dismutase (SOD), peroxidase (POD), catalase (CAT) by 7.32, 38.48, 98.31% (p < 0.05), and reduced malondialdehyde (MDA) by 23.70% (p < 0.05), respectively. Microbiological analyses also showed that F. oxysporum reduced alpha diversity resulting in alteration the composition of the rhizosphere microbial community in red kidney bean. T891 significantly reduced abundance of F. oxysporum, allowing the enrichment of potentially beneficial bacteria Porphyrobacter (ASV 46), Lysobacter (ASV 85), Microbacteriaceae (ASV 105), and Gemmatimonas (ASV 107), resulting in a more stable structure of the microbial network. The results of random forest analysis further revealed that ASV 46 (Porphyrobacter) was the primary influencing factor for the incidence of root rot after inoculation with T891, while ASV 85 (Lysobacter) was the primary influencing factor for the biomass of red kidney bean. In conclusion, T. harzianum promotes the growth of red kidney bean and inhibits root rot by improving plant antioxidant enzyme activity and regulating the rhizosphere microbial community.
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Affiliation(s)
- Zhifen Guo
- College of Resources and Environment, Shanxi Agricultural University, Taiyuan, China
| | - Jiaxing Zhang
- Key Laboratory for Soil Environment and Nutrient Resources, Taiyuan, Shanxi, China
- Institute of Eco-Environment and Industrial Technology, Shanxi Agricultural University, Taiyuan, China
| | - Zhibin Liu
- College of Resources and Environment, Shanxi Agricultural University, Taiyuan, China
| | - Yu Li
- College of Resources and Environment, Shanxi Agricultural University, Taiyuan, China
| | - Meng Li
- College of Resources and Environment, Shanxi Agricultural University, Taiyuan, China
| | - Qiuxia Meng
- Key Laboratory for Soil Environment and Nutrient Resources, Taiyuan, Shanxi, China
- Institute of Eco-Environment and Industrial Technology, Shanxi Agricultural University, Taiyuan, China
| | - Zhiping Yang
- Key Laboratory for Soil Environment and Nutrient Resources, Taiyuan, Shanxi, China
- Institute of Eco-Environment and Industrial Technology, Shanxi Agricultural University, Taiyuan, China
| | - Yuan Luo
- Institute of Eco-Environment and Industrial Technology, Shanxi Agricultural University, Taiyuan, China
| | - Qiang Zhang
- Shanxi Agricultural University, Taiyuan, China
| | - Min Yan
- Key Laboratory for Soil Environment and Nutrient Resources, Taiyuan, Shanxi, China
- Institute of Eco-Environment and Industrial Technology, Shanxi Agricultural University, Taiyuan, China
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Jam E, Khomari S, Ebadi A, Goli-Kalanpa E, Ghavidel A. Influences of peanut hull-derived biochar, Trichoderma harzianum and supplemental phosphorus on hairy vetch growth in Pb- and Zn-contaminated soil. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:9411-9432. [PMID: 37246205 DOI: 10.1007/s10653-023-01606-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 05/03/2023] [Indexed: 05/30/2023]
Abstract
In the present study, in order to improve the growth performance of hairy vetch (Vicia villosa Roth., Local landrace from Ardabil, Iran) seedlings grown in the soil contaminated with heavy metals Pb and Zn, our attention was directed toward the application of biochar, inoculation with conidial suspension of Trichoderma harzianum Rifai-T22 and management of phosphorus (P) nutrition. Heavy metal toxicity reduced leaf greenness, membrane stability index, maximum quantum yield of PSΙΙ (Fv/Fm), P concentration and uptake in plant tissues and root and shoot biomass, but increased Pb and Zn concentration and uptake in root and leaf, H2O2 and malondialdehyde content and CAT and POX activity in the leaves. The application of biochar, inoculation with Trichoderma fungus and P supplementation increased the shoot P content, which might contribute to the alleviation of P insufficiency and a subsequent elevation in P transfer to aboveground biomass, and eliminated the toxicity of heavy metal on hairy vetch plants, which was revealed in reducing oxidative stress and enhancing plant growth performance. The biochar considerably increased Zn immobilization, while being able to slightly stabilize Pb. Co-application of Trichoderma and 22 mg P/kg soil (22P) increased the concentration and uptake of Zn in the roots and decreased the translocation of this element to the shoots, especially when biochar was not amended. Although the biochar and P inputs could compensate the negative Trichoderma effects, the results suggested that biochar application in combination with fungal inoculation and 22-P supplementation could not only increase hairy vetch growth performance but also decline heavy metal uptake to ensure the production of a forage crop in soils polluted with heavy metals based on the nutritional standards of livestock.
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Affiliation(s)
- Elham Jam
- Department of Plant Production and Genetics Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Saeid Khomari
- Department of Plant Production and Genetics Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran.
| | - Ali Ebadi
- Department of Plant Production and Genetics Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Esmaiel Goli-Kalanpa
- Department of Soil Science Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Akbar Ghavidel
- Department of Soil Science Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
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Feng Q, Cao S, Liao S, Wassie M, Sun X, Chen L, Xie Y. Fusarium equiseti-inoculation altered rhizosphere soil microbial community, potentially driving perennial ryegrass growth and salt tolerance. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 871:162153. [PMID: 36764552 DOI: 10.1016/j.scitotenv.2023.162153] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/04/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Fusarium equiseti is an effective plant growth-promoting fungi that induce systemic disease resistance in plants. However, the role of F. equiseti in regulating salt stress response and the underlying mechanisms remain largely unknown. Here, we investigated the effect of F. equiseti Z7 strain on the growth and salt stress response in perennial ryegrass. Additionally, the role of Z7 in regulating the abundance, composition, and structure of native microbial communities in the rhizosphere soil was determined. We observed that Z7 could produce indole-3-acetic acid (IAA) and siderophores. Hence, Z7 inoculation further enhanced plant growth and salt tolerance in perennial ryegrass. Inoculating Z7 increased K+ and decreased Na+ in plant tissues. Z7 inoculation also enhanced soil quality by reducing soluble salt and increasing available phosphorus. Moreover, inoculating Z7 altered the compositions of bacterial and fungal communities in the rhizosphere soil. For instance, beneficial bacterial genera, such as Flavobacterium, Enterobacter, Agrobacterium, and Burkholderiales were dominantly enriched in Z7-inoculated soil. Interestingly, the relative abundance of these genera showed significantly positive correlations with the fresh weight of perennial ryegrass. Our results demonstrate that Z7 could remarkably promote plant growth and salt tolerance by regulating ion homeostasis in plant tissues and microbial communities in the rhizosphere soil. This study provides a scientific foundation for applying microbes to improve plant growth under extreme salt stress conditions.
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Affiliation(s)
- Qijia Feng
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, China; School of Life Science, University of Chinese Academy of Sciences, Beijing, China.
| | - Shilong Cao
- Department of Pratacultural Sciences, College of Agronomy, Hunan Agricultural University, Changsha 410128, China
| | - Shujie Liao
- Department of Pratacultural Sciences, College of Agronomy, Hunan Agricultural University, Changsha 410128, China
| | - Misganaw Wassie
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, China; School of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoyan Sun
- Jiangxi Engineering and Technology Research Center for Ecological Remediation of Heavy Metal Pollution, Institute of Microbe, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Liang Chen
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, China.
| | - Yan Xie
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan 430074, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Wuhan 430074, China.
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Domiciliation of Trichoderma asperellum Suppresses Globiosporangium ultimum and Promotes Pea Growth, Ultrastructure, and Metabolic Features. Microorganisms 2023; 11:microorganisms11010198. [PMID: 36677490 PMCID: PMC9866897 DOI: 10.3390/microorganisms11010198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/29/2022] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
The beneficial microorganisms represent a new and hopeful solution for a sustainable environment and development. In this investigation, Trichoderma asperellum ZNW, isolated from seeds, was domiciliated within the pea plant for improving growth, disease management, and enhancement of productivity. Globisporangium ultimum NZW was isolated from deformed pea seeds, representing the first record of the pathogen caused by pea damping-off. Both fungi were molecularly identified. T. asperellum ZNW produced several lytic enzymes and bioactive metabolites as detected by GC-MC. The SEM illustrated the mycoparasitic behavior of T. asperellum ZNW on G. ultimum NZW mycelia. In the pot experiment, T. asperellum domiciliated the root and grew as an endophytic fungus, leading to root vessel lignification. Under soil infection, T. asperellum reduced damping-off, by enhancing peroxidase, polyphenol, total phenols, and photosynthetic pigments content. The vegetative growth, yield, and soil dehydrogenase activity were improved, with an enhancement in the numerical diversity of the microbial rhizosphere. This work may enable more understanding of the plant-fungal interaction, yet, working on domiciliation is recommended as a new approach to plant protection and growth promotion under various ecological setups.
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Funneliformis mosseae Inoculation Enhances Cucurbita pepo L. Plant Growth and Fruit Yield by Reshaping Rhizosphere Microbial Community Structure. DIVERSITY 2022. [DOI: 10.3390/d14110932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Arbuscular mycorrhizal fungi (AMF) are essential components of the soil microbiome that can facilitate plant growth and enhance abiotic and biotic stress resistance. However, the mechanisms via which AMF inoculation influences Cucurbita pepo L. plant growth and fruit yield remain unclear. Here, we conducted pot experiments to investigate bacterial and fungal community structure in the rhizosphere of C. pepo plants inoculated with Funneliformis mosseae (Nicoll. & Gerd.) Gerd. & Trappe based on 16S ribosomal RNA and internal transcribed spacer gene sequencing. The α-diversity of bacteria increased significantly following F. mosseae inoculation, whereas the α-diversity of fungi exhibited an opposite trend (p < 0.01). The relative abundances of major bacterial phyla, Actinobacteria, Acidobacteria, and Chloroflexi, together with the fungal phylum Ascomycota, were all higher in inoculated samples than in uninoculated controls. F. mosseae inoculation led to remarkable enrichment of potentially beneficial taxa (e.g., Streptomyces, Sphingomonas, Lysobacter, and Trichoderma), in stark contrast to depletion of fungal pathogens (e.g., Botryotrichum, Acremonium, Fusarium, and Plectosphaerella). Pathways related to amino acid metabolism and antibiotic biosynthesis were upregulated by F. mosseae inoculation, whereas pathways involved in infectious diseases were downregulated. The results suggest that F. mosseae inoculation reshapes the rhizosphere microbiome, thereby augmenting C. pepo plant growth and fruit yield.
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Zhang Y, Xiao J, Yang K, Wang Y, Tian Y, Liang Z. Transcriptomic and metabonomic insights into the biocontrol mechanism of Trichoderma asperellum M45a against watermelon Fusarium wilt. PLoS One 2022; 17:e0272702. [PMID: 35947630 PMCID: PMC9365129 DOI: 10.1371/journal.pone.0272702] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/26/2022] [Indexed: 11/18/2022] Open
Abstract
Watermelon (Citrullus lanatus) is one of the most popular fruit crops. However, Fusarium wilt (FW) is a serious soil-borne disease caused by Fusarium oxysporum f. sp. niveum (FON) that severely limits the development of the watermelon industry. Trichoderma spp. is an important plant anti-pathogen biocontrol agent. The results of our previous study indicated that Trichoderma asperellum M45a (T. asperellum M45a) could control FW by enhancing the relative abundance of plant growth-promoting rhizobacteria (PGPR) in the rhizosphere of watermelon. However, there are few studies on its mechanism in the pathogen resistance of watermelon. Therefore, transcriptome sequencing of T. asperellum M45a-treated watermelon roots combined with metabolome sequencing of the rhizosphere soil was performed with greenhouse pot experiments. The results demonstrated that T. asperellum M45a could stably colonize roots and significantly increase the resistance-related enzymatic activities (e.g., lignin, cinnamic acid, peroxidase and peroxidase) of watermelon. Moreover, the expression of defense-related genes such as MYB and PAL in watermelon roots significantly improved with the inoculation of T. asperellum M45a. In addition, KEGG pathway analysis showed that a large number of differentially expressed genes were significantly enriched in phenylpropane metabolic pathways, which may be related to lignin and cinnamic acid synthesis, thus further inducing the immune response to resist FON. Furthermore, metabolic analysis indicated that four differential metabolic pathways were enriched in M45a-treated soil, including six upregulated compounds and one down-regulated compound. Among them, galactinol and urea were significantly positively correlated with Trichoderma. Hence, this study provides insight into the biocontrol mechanism of T. asperellum M45a to resist soil-borne diseases, which can guide its industrial application.
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Affiliation(s)
- Yi Zhang
- Hunan Rice Research Institute, Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Changsha, Hunan, China
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
| | - Jiling Xiao
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
- Institute of Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Ke Yang
- Institute of Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Yuqin Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
| | - Yun Tian
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
- * E-mail: (YT); (ZL)
| | - Zhihuai Liang
- Institute of Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
- * E-mail: (YT); (ZL)
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The Effects of Plant Health Status on the Community Structure and Metabolic Pathways of Rhizosphere Microbial Communities Associated with Solanum lycopersicum. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8050404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Powdery mildew disease caused by Oidium neolycopersici is one of the major diseases affecting tomato production in South Africa. Interestingly, limited studies exist on how this disease affects the community structure microbial communities associated with tomato plants employing shotgun metagenomics. In this study, we assess how the health status of a tomato plant affects the diversity of the rhizosphere microbial community. We collected soil samples from the rhizosphere of healthy (HR) and diseased (DR; powdery mildew infected) tomatoes, alongside bulk soil (BR), extracted DNA, and did sequencing using shotgun metagenomics. Our results demonstrated that the rhizosphere microbiome alongside some specific functions were abundant in HR followed by DR and bulk soil (BR) in the order HR > DR > BR. We found eighteen (18) bacterial phyla abundant in HR, including Actinobacteria, Acidobacteria, Aquificae, Bacteroidetes, etc. The dominant fungal phyla include; Ascomycota and Basidiomycota, while the prominent archaeal phyla are Thaumarchaeota, Crenarchaeota, and Euryarchaeota. Three (3) bacteria phyla dominated the DR samples; Bacteroidetes, Gemmatimonadetes, and Thermotoga. Our result also employed the SEED subsystem and revealed that the metabolic pathways involved were abundant in HR. The α-diversity demonstrates that there is no significant difference among the rhizosphere microbiomes across the sites, while β-diversity demonstrated a significant difference.
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Cruz-Magalhães V, Nieto-Jacobo MF, Rostás M, Echaide-Aquino JF, Naranjo UE, Stewart A, Loguercio LL, Mendoza-Mendoza A. Histidine kinase two-component response regulators Ssk1, Skn7 and Rim15 differentially control growth, developmental and volatile organic compounds emissions as stress responses in Trichoderma atroviride. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 3:100139. [PMID: 35909598 PMCID: PMC9325911 DOI: 10.1016/j.crmicr.2022.100139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 05/02/2022] [Accepted: 05/16/2022] [Indexed: 12/02/2022] Open
Abstract
Ssk1 may function as a hub-like RR in T. atroviride, as growth, and differentiation (conidiation). Skn7 has a significant role in the production of volatile organic compounds. Ssk1 and Rim15 have a role in mycoparasitism and both are negative regulators of volatile organic compounds. Rim15 seems to be a negative regulator of either the accumulation or biosynthesis of terpenes.
The Skn7, Ssk1 and Rim15 proteins are response regulators involved in osmotic, oxidative and nutritional stress in fungi. In order to verify the involvement of these genes in Trichoderma atroviride IMI206040’s growth, conidiation, direct antagonism against plant pathogens (Rhizoctonia solani and Sclerotinia sclerotiorum), production of volatile organic compounds (VOCs) with fungistatic effect, and interaction with plants (growth promotion), single mutants were generated, and the phenotypic patterns were analysed in comparison to the wild-type (wt) strain. The mutants were submitted to osmotic, oxidative, membrane and cell wall stress conditions in vitro. The Δskn7 and Δrim15 mutants did not show either significant differences at morphological level, or marked decreases in mycelial growth and conidiation in relation to wt, whereas Δssk1 had altered phenotypes in most conditions tested. The plant-growth promotion of Arabidopsis thaliana seedlings induced by VOCs was not quantitatively modified by any of the mutants in relation to the wt strain, although possible differences in secondary root hairs was noticed for Δrim15. The fungistatic activity was significantly altered for Δssk1 and Δrim15. Overall, the Δssk1 strain showed remarkable morphological differences, with decrease in mycelial growth and conidiation, being also affected in the antagonistic capacity against plant pathogens. The impacts demonstrated by the deletion of ssk1 suggest this gene has a relevant participation in the signalling response to different stresses in T. atroviride and in the interactive metabolism with phytopathogens and plants. On the other hand, unlike other fungal models, Skn7 did not appear to have a critical participation in the above-mentioned processes; Rim15 seemed to confirm its involvement in modulating cellular responses to nutritional status, although with a possible cross-talk with other cellular processes. Our results suggest that Ssk1 likely plays a key regulatory role, not only in basic metabolisms of T. atroviride, but also in biocontrol-related characteristics.
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Alghuthaymi MA, Abd-Elsalam KA, AboDalam HM, Ahmed FK, Ravichandran M, Kalia A, Rai M. Trichoderma: An Eco-Friendly Source of Nanomaterials for Sustainable Agroecosystems. J Fungi (Basel) 2022; 8:jof8040367. [PMID: 35448598 PMCID: PMC9027617 DOI: 10.3390/jof8040367] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/21/2022] [Accepted: 03/31/2022] [Indexed: 02/01/2023] Open
Abstract
Traditional nanoparticle (NP) synthesis methods are expensive and generate hazardous products. It is essential to limit the risk of toxicity in the environment from the chemicals as high temperature and pressure is employed in chemical and physical procedures. One of the green strategies used for sustainable manufacturing is microbial nanoparticle synthesis, which connects microbiology with nanotechnology. Employing biocontrol agents Trichoderma and Hypocrea (Teleomorphs), an ecofriendly and rapid technique of nanoparticle biosynthesis has been reported in several studies which may potentially overcome the constraints of the chemical and physical methods of nanoparticle biosynthesis. The emphasis of this review is on the mycosynthesis of several metal nanoparticles from Trichoderma species for use in agri-food applications. The fungal-cell or cell-extract-derived NPs (mycogenic NPs) can be applied as nanofertilizers, nanofungicides, plant growth stimulators, nano-coatings, and so on. Further, Trichoderma-mediated NPs have also been utilized in environmental remediation approaches such as pollutant removal and the detection of pollutants, including heavy metals contaminants. The plausible benefits and pitfalls associated with the development of useful products and approaches to trichogenic NPs are also discussed.
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Affiliation(s)
- Mousa A. Alghuthaymi
- Biology Department, Science and Humanities College, Shaqra University, Alquwayiyah 11726, Saudi Arabia
- Correspondence:
| | - Kamel A. Abd-Elsalam
- Plant Pathology Research Institute, Agricultural Research Center (ARC), 9-Gamaa St., Giza 12619, Egypt;
| | - Hussien M. AboDalam
- Plant Pathology Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt;
| | - Farah K. Ahmed
- Biotechnology English Program, Faculty of Agriculture, Cairo University, Giza 12613, Egypt;
| | - Mythili Ravichandran
- Department of Microbiology, Vivekanandha Arts and Science College for Women, Sankari 637303, Tamil Nadu, India;
| | - Anu Kalia
- Electron Microscopy and Nanoscience Laboratory, Punjab Agricultural University, Ludhiana 141004, Punjab, India;
| | - Mahendra Rai
- Department of Microbiology, Nicolaus Copernicus University, Lwowska 1, 87100 Torun, Poland;
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Effect of co-application of Trichoderma spp. with organic composts on plant growth enhancement, soil enzymes and fungal community in soil. Arch Microbiol 2021; 203:4281-4291. [PMID: 34100101 DOI: 10.1007/s00203-021-02413-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
The application of Trichoderma spp. has the potential to reduce not only mineral fertilizer use in agriculture but also improve soil health through increased soil biological activity. Trichoderma spp. have shown potential as bio-control agents and plant growth promoting ability, but little attention has been paid to the effect of Trichoderma spp. inoculation on nutrient availability and the soil microbiome. In this study, we evaluated the effect of Trichoderma spp. inoculation on nitrogen mineralization and quantified soil enzymatic activities along with plant growth promotion potential. The influence of Trichoderma spp. and organic amendments on the soil fungal community was also investigated. For this purpose, pots and incubation experiment was carried out, and seven treatments were set as follows; poultry compost (PC), poultry compost + RW309 (PCT), cattle compost (CC), cattle compost + RW309 (CCT), rapeseed oil cake (OC), inorganic fertilizer (N) and only soil (S) were set as control. We evaluated that Trichoderma sp. RW309 produced indole-3-acetic acid, which suggested that it could contribute to plant growth enhancement during early plant growth. Inoculation of RW309 with organic materials stimulated nitrogen mineralization and increased soil phosphatase activity. Furthermore, RW309 altered the fungal community in rhizosphere soil. However, cattle compost was a more suitable culture medium for RW309 than poultry compost in terms of nitrogen mineralization, soil enzyme activity, and growth of RW309. In conclusion, Trichoderma sp. RW309 could be considered for use as a bioorganic fertilizer in combination with organic compost to minimize the use of mineral fertilizers.
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Zhang T, Jin W, Yang S, Li Y, Zhang M, Shi M, Guo X, Li D, Zhang B, Liu S, Hu D. Study of compositions of musks in different types secreted by forest musk deer (Moschus berezovskii). PLoS One 2021; 16:e0245677. [PMID: 33725016 PMCID: PMC7963063 DOI: 10.1371/journal.pone.0245677] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 01/05/2021] [Indexed: 12/31/2022] Open
Abstract
Musk is a secretion of the forest musk deer (Moschus berezovskii). Normal musk is a brown solid secretion with a light fragrance. In this study, abnormal types of musk, namely, white and black musks, were discovered during the musk collection process. Researchers have long been concerned with the components of musk. Herein, GC-MS, headspace solid-phase microextraction (HS-SPME), and nonmetric multidimensional scaling (NMDS) were used to analyze the nonpolar organic components, volatile organic components, and sample similarities among different musks, respectively. Abundant steroid hormones and proteins were also found in the musk. The steroid hormone concentrations were detected using a radioimmunoassay (RIA). Proteins in the samples were hydrolyzed and the amino acids concentrations were detected. The steroid hormone and amino acid concentrations in white musk were significantly lower than in normal and black musks (p<0.05). The components were subjected to NMDS analysis to understand the differences in components among different types of musk, with the results suggesting that white musk was different from normal and black musks.
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Affiliation(s)
- Tianxiang Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
| | - Weijiang Jin
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
| | - Shuang Yang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
| | - Yimeng Li
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
| | - Meishan Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
| | - Minghui Shi
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
| | - Xiaobing Guo
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
| | - Dawei Li
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
| | - Baofeng Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
| | - Shuqiang Liu
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
- * E-mail: (SL); (DH)
| | - Defu Hu
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, People’s Republic of China
- * E-mail: (SL); (DH)
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Zhang Y, Tian C, Xiao J, Wei L, Tian Y, Liang Z. Soil inoculation of Trichoderma asperellum M45a regulates rhizosphere microbes and triggers watermelon resistance to Fusarium wilt. AMB Express 2020; 10:189. [PMID: 33095335 PMCID: PMC7584699 DOI: 10.1186/s13568-020-01126-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/15/2020] [Indexed: 12/28/2022] Open
Abstract
Fusarium wilt (FW) caused by Fusarium oxysporum f. sp. niveum (FON) is a soil-borne disease that seriously limits watermelon production. In the present study, Trichoderma asperellum (T. asperellum) M45a was shown to be an effective biocontrol agent against FW. In a pot experiment, the application of 105 cfu/g of T. asperellum M45a granules had an improved control effect on FW during the blooming period (up to 67.44%) in soils subjected to five years of continuous cropping with watermelon, while the average length of watermelon vines was also significantly improved (P < 0.05). Additionally, the acid phosphatase (ACP), cellulase (CL), catalase (CAT), and sucrase (SC) activities in the M45a-inoculation group were significantly higher than those in the control (CK) group, and transformation of the soil nutrients (total N, NO3-N, and available P) was significantly increased. Moreover, T. asperellum M45a inoculation reduced fungal diversity, increased bacterial diversity and especially enhanced the relative abundance of plant growth-promoting rhizobacteria (PGPR), such as Trichoderma, Sphingomonas, Pseudomonas, Actinomadura, and Rhodanobacter. Through functional prediction, the relative abundance of ectomycorrhiza, endophytes, animal pathotrophs, and saprotrophs in the fungal community was determined to be significantly lower than that observed in the M45a-treated soil. Correlation analysis revealed that Sphingomonas, Pseudomonas, and Trichoderma had the most differences in terms of microorganism abundance, and these differences were positively correlated with ACP, CL, CAT, and SC. These findings provide guidance for the use of fungicides to achieve microecological control of FW in continuously cropped watermelon plots.
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Gonzalez MF, Magdama F, Galarza L, Sosa D, Romero C. Evaluation of the sensitivity and synergistic effect of Trichoderma reesei and mancozeb to inhibit under in vitro conditions the growth of Fusarium oxysporum. Commun Integr Biol 2020; 13:160-169. [PMID: 33149802 PMCID: PMC7583711 DOI: 10.1080/19420889.2020.1829267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Trichoderma is a saprophytic, soil-borne fungus with a worldwide distribution that has been extensively studied due to their capacity to synthesize secondary metabolites with antimicrobial activity, parasitize other fungi and directly interact with plant roots, inducing resistance to disease and tolerance to abiotic stresses. Fusarium wilt caused by the soil-inhabiting fungus Fusarium oxysporum is considered one of the most important diseases that affect banana cultivars. Currently, more environmentally friendly alternatives to control this disease are being proposed, these strategies include the application of low doses of synthetic fungicides and the use of biocontrol agents such as Trichoderma or Xylaria. Thus, this study aimed to evaluate under in vitro conditions the synergistic effect of the biological control agent T. reesei C2A combined with low doses of mancozeb to inhibit the mycelial growth of F. oxysporum F1. To perform the synergistic essays, 0.1 mg/mL of mancozeb was suspended in PDA plates, then plugs of T. ressei C2A were placed at the center of the Petri dishes, the plates were incubated for 7 days at 28°C. Results showed that the mycoparasitic capacity of the biocontrol strain to inhibit the mycelial growth of F. oxysporum F1 was enhanced approximately 36% compared to the control plates. Although these results are promising, future studies under greenhouse and field conditions are necessary to corroborate the effectiveness of this approach.
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Affiliation(s)
- María Fernanda Gonzalez
- Escuela Superior Politécnica del Litoral, ESPOL, Centro de Investigaciones Biotecnológicas del Ecuador (CIBE), Guayaquil, Ecuador.,Facultad de Ingeniería Química, Universidad de Guayaquil, Guayaquil, Ecuador
| | - Freddy Magdama
- Escuela Superior Politécnica del Litoral, ESPOL, Centro de Investigaciones Biotecnológicas del Ecuador (CIBE), Guayaquil, Ecuador.,Facultad de Ciencias de la Vida (FCV), Escuela Superior Politécnica del Litoral, ESPOL, Guayaquil, Ecuador
| | - Luis Galarza
- Escuela Superior Politécnica del Litoral, ESPOL, Centro de Investigaciones Biotecnológicas del Ecuador (CIBE), Guayaquil, Ecuador.,Facultad de Ciencias de la Vida (FCV), Escuela Superior Politécnica del Litoral, ESPOL, Guayaquil, Ecuador
| | - Daynet Sosa
- Escuela Superior Politécnica del Litoral, ESPOL, Centro de Investigaciones Biotecnológicas del Ecuador (CIBE), Guayaquil, Ecuador.,Facultad de Ciencias de la Vida (FCV), Escuela Superior Politécnica del Litoral, ESPOL, Guayaquil, Ecuador
| | - Christian Romero
- Escuela Superior Politécnica del Litoral, ESPOL, Centro de Investigaciones Biotecnológicas del Ecuador (CIBE), Guayaquil, Ecuador.,Facultad de Ciencias de la Vida (FCV), Escuela Superior Politécnica del Litoral, ESPOL, Guayaquil, Ecuador
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Biocontrol and growth-promoting effect of Trichoderma asperellum TaspHu1 isolate from Juglans mandshurica rhizosphere soil. Microbiol Res 2020; 242:126596. [PMID: 33007636 DOI: 10.1016/j.micres.2020.126596] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 09/06/2020] [Accepted: 09/12/2020] [Indexed: 12/18/2022]
Abstract
To better apply the biocontrol agent Trichoderma spp. in Northeast China, collecting and screening more suitable native Trichoderma strains is necessary. In the present study, 10 isolates were obtained from Juglans mandshurica rhizosphere soils in Heilongjiang Province, and were identified as T. asperellum (four isolates), T. harzianum (four), T. hamatum (one), T. atroviride (one). The fastest-growing isolate per species on potato dextrose agar medium were further evaluated in stress tolerance tests (salt, alkali, nutritional stress, and low temperature) and confrontation assays (eight pathogens), which showed that T. asperellum TaspHu1 possessed the best adaptation and biological control ability. Then, Solanum lycopersicum (tomato) seeds were sown and treated with a series of concentrations of TaspHu1 spore suspension, as was unsown soil. Tomato seedlings treated by TaspHu1 had a significantly greater height, stem diameter, soluble protein content and soluble sugar content. Furthermore, their nitrate reductase activity and catalase activity were significantly increased, and these promoting effects depended on the concentration of the spore suspension. Meanwhile, a decrease in chlorophyll content was observed in the tomato seedlings treated with TaspHu1. In addition, strain TaspHu1 enhanced the tomato seedlings' absorption of available nitrogen, but did not influence the soil available nitrogen content. Furthermore, the resistance of tomato seedlings against Alternaria alternata was enhanced by TaspHu1 (smaller, fewer leaf spots), the seedlings' hormone signal transduction genes JAR1, MYC2, NPR1, PR1, and GH3.2 were highly expressed. Thus, TaspHu1 is a promising biocontrol candidate for use in agriculture and forestry.
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Bononi L, Chiaramonte JB, Pansa CC, Moitinho MA, Melo IS. Phosphorus-solubilizing Trichoderma spp. from Amazon soils improve soybean plant growth. Sci Rep 2020; 10:2858. [PMID: 32071331 PMCID: PMC7028723 DOI: 10.1038/s41598-020-59793-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/31/2020] [Indexed: 12/22/2022] Open
Abstract
Acidic soils rapidly retain applied phosphorus fertilizers and consequently present low availability of this nutrient to plants. The use of phosphate-solubilizing microorganisms to help plant phosphorus (P) absorption is a promising sustainable strategy for managing P deficiencies in agricultural soils. Trichoderma strains have been one of the most studied filamentous fungi for improving the production and development of several crop species mainly due to their capability for symbiotic associations and their ability to control soil-borne plant diseases. Thus, this work sought to bioprospect Trichoderma strains from the Amazon rainforest capable of solubilizing/mineralizing soil phosphate and promoting soybean growth. Soybean plants inoculated with selected Trichoderma strains were cultivated in soil under greenhouse conditions and under a gradient of rock phosphate and triple superphosphate. As a result, 19.5% of the isolated Trichoderma strains were able to solubilize phosphate. In addition, those strains produced different organic acids during the solubilization process. Trichoderma spp. strains showed positive responses in the promotion of soybean growth-from 2.1% to 41.1%-as well as in the efficiency of P uptake-up to 141%. These results reveal the potential of Trichoderma spp. from the Amazon biome as promising biofertilizer agents.
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Affiliation(s)
- Laura Bononi
- Laboratory of Environmental Microbiology, Brazilian Agricultural Research Corporation, EMBRAPA Environment, SP 340 Highway - Km 127.5, 13820-000, Jaguariúna, SP, Brazil
- College of Agriculture "Luiz de Queiroz", University of São Paulo, Pádua Dias Avenue, 11, 13418-900, Piracicaba, SP, Brazil
| | - Josiane Barros Chiaramonte
- Laboratory of Environmental Microbiology, Brazilian Agricultural Research Corporation, EMBRAPA Environment, SP 340 Highway - Km 127.5, 13820-000, Jaguariúna, SP, Brazil
| | - Camila Cristiane Pansa
- Laboratory of Environmental Microbiology, Brazilian Agricultural Research Corporation, EMBRAPA Environment, SP 340 Highway - Km 127.5, 13820-000, Jaguariúna, SP, Brazil
- College of Agriculture "Luiz de Queiroz", University of São Paulo, Pádua Dias Avenue, 11, 13418-900, Piracicaba, SP, Brazil
| | - Marta Alves Moitinho
- Laboratory of Environmental Microbiology, Brazilian Agricultural Research Corporation, EMBRAPA Environment, SP 340 Highway - Km 127.5, 13820-000, Jaguariúna, SP, Brazil
- College of Agriculture "Luiz de Queiroz", University of São Paulo, Pádua Dias Avenue, 11, 13418-900, Piracicaba, SP, Brazil
| | - Itamar Soares Melo
- Laboratory of Environmental Microbiology, Brazilian Agricultural Research Corporation, EMBRAPA Environment, SP 340 Highway - Km 127.5, 13820-000, Jaguariúna, SP, Brazil.
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Uroz S, Courty PE, Oger P. Plant Symbionts Are Engineers of the Plant-Associated Microbiome. TRENDS IN PLANT SCIENCE 2019; 24:905-916. [PMID: 31288964 DOI: 10.1016/j.tplants.2019.06.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 06/03/2019] [Accepted: 06/07/2019] [Indexed: 05/09/2023]
Abstract
Plants interact throughout their lives with environmental microorganisms. These interactions determine plant development, nutrition, and fitness in a dynamic and stressful environment, forming the basis for the holobiont concept in which plants and plant-associated microbes are not considered as independent entities but as a single evolutionary unit. A primary open question concerns whether holobiont structure is shaped by its microbial members or solely by the plant. Current knowledge of plant-microbe interactions argues that the establishment of symbiosis directly and indirectly conditions the plant-associated microbiome. We propose to define the impact of the symbiont on the plant microbiome as the 'symbiosis cascade effect', in which the symbionts and their plant host jointly shape the plant microbiome.
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Affiliation(s)
- Stephane Uroz
- Institut National de la Recherche Agronomique (INRA) Unité Mixte de Recherche (UMR) 1136, Interactions Arbres-Microorganismes, F-54280, Champenoux, France; Université de Lorraine, UMR 1136, Interactions Arbres-Microorganismes, F-54500 Vandoeuvre-lès-, Nancy, France; INRA Unité de Recherche (UR) 1138, Biogéochimie des Écosystèmes Forestiers, F-54280, Champenoux, France.
| | - Pierre Emmanuel Courty
- Agroécologie, Institut National de la Recherche, Agronomique (INRA), AgroSup Dijon, Centre, National de la Recherche Scientifique (CNRS), Université de Bourgogne, INRA, Université de Bourgogne Franche-Comté, F-21000 Dijon, France
| | - Phil Oger
- Université de Lyon, Institut National des Sciences Appliquées (INSA) de Lyon, CNRS UMR, 5240, Villeurbanne, France
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