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Li B, Xu L, Ijaz M, Hafeez R, Ayoade SO, Shen Y, Yang F, Wang X, Liu Q, Li X, Gu C, Zhang J, Li B. Effective mitigation of sclerotium rot in lettuce cultivation by two soil fungi Aspergillus terreus and Albifimbria verrucaria. PEST MANAGEMENT SCIENCE 2025. [PMID: 40396279 DOI: 10.1002/ps.8916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2024] [Revised: 05/03/2025] [Accepted: 05/06/2025] [Indexed: 05/22/2025]
Abstract
BACKGROUND Lettuce is widely cultivated for its high nutritional value, but its yield is significantly diminished by Sclerotinia sclerotiorum, a pathogenic fungus responsible for Sclerotinia rot. The overuse of chemical fungicides has led to resistance and environmental concerns. Consequently, there is an urgent need to develop effective biocontrol agents as a safer and more sustainable alternative for managing this disease. RESULTS Aspergillus terreus strain JH92 and Albifimbria verrucaria strain JH96, isolated from lettuce fields, exhibited inhibition on the mycelial growth and sclerotia formation of S. sclerotiorum. Crude extracts of both fungal strains demonstrated broad-spectrum antifungal activity against S. sclerotiorum and other phytopathogens. In vitro and glasshouse trials revealed significant control of sclerotinia rot on lettuce plants. The optimal fermentation conditions for both strains were determined. The biocontrol mechanism of strain JH96 was attributed to reduction of oxalic acid secretion, whereas the biocontrol mechanism of strain JH92 was attributed to production of antifungal active compounds of glycitein and butyrolactone I. In particular, glycitein effectively inhibited the growth, sclerotia formation and sclerotium germination of S. sclerotiorum. CONCLUSION Results from this study clearly indicated that the two strains, in particular strain JH92, were antagonistic to S. sclerotiorum under in vitro and in vivo conditions. This revealed that both strains have great potential as environmentally-friendly alternatives to chemical fungicides for biological control of Sclerotinia rot in lettuce production. © 2025 Society of Chemical Industry.
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Affiliation(s)
- Bing Li
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Zhejiang Engineering Research Center for Biological Control of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Lihui Xu
- Institute of Eco-Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Munazza Ijaz
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Zhejiang Engineering Research Center for Biological Control of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Rahila Hafeez
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Zhejiang Engineering Research Center for Biological Control of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, China
- College of life sciences and oceanography, Shenzhen University, Shenzhen, China
| | - Solabomi Olaitan Ayoade
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Zhejiang Engineering Research Center for Biological Control of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Ying Shen
- Station for the Plant Protection & Quarantine and Control of Agrochemicals of Zhejiang Province, Hangzhou, China
| | - Fengli Yang
- Deqing County Agricultural Technology Extension Center, Deqing, China
| | - Xiao Wang
- Ningbo Jiangbei District Agricultural Technology Extension Service Station, Ningbo, China
| | - Quanhong Liu
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Zhejiang Engineering Research Center for Biological Control of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Xuqing Li
- Institute of Vegetable, Hangzhou Academy of Agricultural Sciences, Hangzhou, China
| | - Chunyan Gu
- Institute of Plant Protection and Agricultural Product Quality and Safety, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Jingze Zhang
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Zhejiang Engineering Research Center for Biological Control of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Bin Li
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang Key Laboratory of Biology and Ecological Regulation of Crop Pathogens and Insects, Zhejiang Engineering Research Center for Biological Control of Crop Pathogens and Insect Pests, Institute of Biotechnology, Zhejiang University, Hangzhou, China
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Hasali NHM, Shahbaz M, Seelan JSS, Ibrahim NA, Wiart C, Arumugam N, Salam MA, Musthafa MM, Appalasamy S. Endophytes of Zingiberaceae: distribution and bioactivity of their bioactive metabolites. Arch Microbiol 2025; 207:145. [PMID: 40358698 DOI: 10.1007/s00203-025-04335-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2025] [Revised: 04/12/2025] [Accepted: 04/15/2025] [Indexed: 05/15/2025]
Abstract
The endophytes associated with the Zingiberaceae family have demonstrated remarkable potential in various biological activities through their bioactive compounds that are useful for both medical and agricultural purposes. Additionally, isolated secondary metabolites from symbiotic microbes associated with this family of plants have shown promising results in various biological activities such as antifungal, anticancer, antidiabetic, anti-inflammatory, and antibacterial. This review focuses on the bioactive metabolites of Zingiberaceae endophytes with their potential biological activities against different pathogens as well as the production of phytohormones that promote plant growth. Furthermore, bibliometric analysis revealed the current key trends and collaborative works in this field. Additionally, the bibliometric analysis also explored a total of 75 relevant publications from the Scopus database that India is the most contributing country in this field with 38.7% of the total reported research work. The bibliometric approach helps uncover new research gaps by identifying emerging trends, underexplored topics, and collaborative networks, providing insights into areas that require further investigation and development. Notably, Streptomyces spp. have been commonly reported as potent endophytes, generating bioactive substances such as Vanillin and Resacetophenone with strong antibacterial activities. Significant knowledge gaps still exist, and with evolving therapeutic potential, this could offer a wide opportunity for new studies to emerge.
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Affiliation(s)
- Nor Hazwani Mohd Hasali
- Faculty of Earth Science, Universiti Malaysia Kelantan (UMK) Jeli Campus, 17600, Jeli, Kelantan, Malaysia
| | - Muhammad Shahbaz
- Institute for Tropical Biology and Conservation (ITBC), Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia
| | - Jaya Seelan Sathiya Seelan
- Institute for Tropical Biology and Conservation (ITBC), Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia.
| | - Nazirul Azam Ibrahim
- Pejabat Kesihatan Daerah Kuala Nerus, Batu Rakit, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Christophe Wiart
- Institute for Tropical Biology and Conservation (ITBC), Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia
| | - Nivaarani Arumugam
- Faculty of Earth Science, Universiti Malaysia Kelantan (UMK) Jeli Campus, 17600, Jeli, Kelantan, Malaysia
- Institute of Food Security and Sustainable Agriculture (IFSSA), Universiti Malaysia Kelantan, Jeli Campus, 17600, Jeli, Kelantan, Malaysia
| | - Mohammed Abdus Salam
- Department of Environmental Science and Disaster Management, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Muneeb M Musthafa
- Department of Biosystems Technology, Faculty of Technology, South Eastern University of Sri Lanka, University Park, Oluvil, 32360, Sri Lanka
| | - Suganthi Appalasamy
- Faculty of Earth Science, Universiti Malaysia Kelantan (UMK) Jeli Campus, 17600, Jeli, Kelantan, Malaysia.
- Institute of Food Security and Sustainable Agriculture (IFSSA), Universiti Malaysia Kelantan, Jeli Campus, 17600, Jeli, Kelantan, Malaysia.
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Alhaddad F, Abu‐Dieyeh M, Jaoua S, Al‐Ghouti M, Al‐Thani R, Ahmed T. Screening, Diversity, and Characterization of Fungal Endophytes Isolated From the Halophyte Limonium axillare and the Potential of Biocontrol Antagonists Against Fusarium oxysporum. PLANT DIRECT 2025; 9:e70026. [PMID: 40129485 PMCID: PMC11931262 DOI: 10.1002/pld3.70026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Revised: 10/12/2024] [Accepted: 11/02/2024] [Indexed: 03/26/2025]
Abstract
Halophytes, plants that thrive in high-salinity environments, host unique microbial communities, including fungal endophytes, which contribute to plant growth and pathogen resistance. This study aimed to isolate, identify, and evaluate the antagonistic potential of fungal endophytes from the halophytic plant Limonium axillare, collected from both inland and coastal habitats. Fungal endophytes were isolated, identified via molecular techniques, and tested for antagonistic activity against phytopathogenic fungi using dual-culture assays. The results showed a diverse range of fungal endophytes, with Aspergillus and Cladosporium being the dominant genera. A total of 152 endophytic fungi were isolated from both locations, with 95 isolates coming from coastal plants and 57 from inland species. The isolates exhibited varying degrees of antagonistic activity against phytopathogens, highlighting their potential role in plant protection. Further research is needed to clarify these interactions' mechanisms and investigate their practical applications in agriculture. An endophytic isolate of Aspergillus terreus strain ((AL10) lim10qu) (ON210104.1) exhibited potent in vitro antifungal activity against Fusarium oxysporum, a pathogenic fungus affecting tomato plants. Greenhouse experiments demonstrated that the fungus significantly increased both the length of tomato seedlings and the overall plant biomass. Both laboratory-based (in vitro) and field-based (in vivo) evaluations of the strain ((AL10) lim10qu) (A. terreus) against F. oxysporum suggest the promising role of endophytes as effective biological control agents. Analysis using Gas Chromatography-Mass Spectrometry of the fungal extract detected around 100 compounds (secondary metabolites). In addition to gradually reducing the need for chemical fungicides, bio-products can also contribute to sustainable agriculture.
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Affiliation(s)
- Fedae Alhaddad
- Biological Science Program, Department of Biological and Environmental Sciences, College of Arts and SciencesQatar UniversityDohaQatar
| | - Mohammed Abu‐Dieyeh
- Biological Science Program, Department of Biological and Environmental Sciences, College of Arts and SciencesQatar UniversityDohaQatar
| | - Samir Jaoua
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and SciencesQatar UniversityDohaQatar
| | - Mohammad A. Al‐Ghouti
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and SciencesQatar UniversityDohaQatar
| | - Roda Al‐Thani
- Biological Science Program, Department of Biological and Environmental Sciences, College of Arts and SciencesQatar UniversityDohaQatar
| | - Talaat Ahmed
- Environmental Science Center, Research and Graduate StudiesQatar UniversityDohaQatar
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Saini HP, Meena M, Sahoo A, Mehta T. A review on fungal endophytes of the family Fabaceae, their metabolic diversity and biological applications. Heliyon 2025; 11:e42153. [PMID: 40196783 PMCID: PMC11947704 DOI: 10.1016/j.heliyon.2025.e42153] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2024] [Revised: 01/13/2025] [Accepted: 01/20/2025] [Indexed: 04/09/2025] Open
Abstract
Fabaceae is considered the third largest family of the plant kingdom, comprising of a large number of plants, belonging to 650 genera and 20,000 species of plants. Out of the various plant species that are reported in the family Fabaceae, many of the species have been reported to exhibit diverse pharmacological activities and are of economic importance to agriculturists and scientists across the globe. Studies over the last few decades have unraveled a lot of concrete information about different plants, ranging from the mutualistic interdependence of plants and microbes for their survival to the innumerable benefits of plants in the sectors of agriculture, food industry, medicine, and healthcare. The survival and effective maintenance of plant homeostasis is largely regulated by the diverse microbial population that co-exists in symbiotic relationships with plants. This endophytic microbial population can be either categorized as endophytic bacteria or endophytic fungi. The studies over the past decades have highlighted the crucial role of both endophytic bacteria and fungi in the growth and development of plants. This review explores the ameliorative roles of endophytic fungi in alleviating biotic and abiotic stresses in plants. Additionally, it highlights the vast diversity of secondary metabolites produced by these fungi and their potential applications. Secondary metabolites exhibit a wide range of biologically significant activities, including anticancer, antimicrobial, antimalarial, and nematicidal properties, which hold substantial importance in therapeutic and agricultural applications. Furthermore, the role of various endophytic fungi of the Fabaceae family has been shown in phytoremediation.
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Affiliation(s)
- Hanuman Prasad Saini
- Laboratory of Phytopathology and Microbial Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur, 313001, Rajasthan, India
| | - Mukesh Meena
- Laboratory of Phytopathology and Microbial Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur, 313001, Rajasthan, India
| | - Abhishek Sahoo
- Laboratory of Phytopathology and Microbial Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur, 313001, Rajasthan, India
| | - Tushar Mehta
- Laboratory of Phytopathology and Microbial Biotechnology, Department of Botany, Mohanlal Sukhadia University, Udaipur, 313001, Rajasthan, India
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Chandra H, Yadav A, Prasad R, Kalra SJS, Singh A, Bhardwaj N, Gupta KK. Fungal endophytes from medicinal plants acting as natural therapeutic reservoir. THE MICROBE 2024; 3:100073. [DOI: 10.1016/j.microb.2024.100073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2024]
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Santra HK, Dutta R, Banerjee D. Antifungal activity of bio-active cell-free culture extracts and volatile organic compounds (VOCs) synthesised by endophytic fungal isolates of Garden Nasturtium. Sci Rep 2024; 14:11228. [PMID: 38755187 PMCID: PMC11099177 DOI: 10.1038/s41598-024-60948-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/29/2024] [Indexed: 05/18/2024] Open
Abstract
Antimicrobial resistance in fungal pathogens (both human and plant) is increasing alarmingly, leading to massive economic crises. The existing anti-fungal agents are becoming ineffective, and the situation worsens on a logarithmic scale. Novel antifungals from unique natural sources are highly sought to cope sustainably with the situation. Metabolites from endophytic microbes are the best-fitted alternatives in this case. Endophytes are the untapped sources of 'plants' internal microbial population' and are promising sources of effective bio-therapeutic agents. Fungal endophytes were isolated from Tropaeolum majus and checked for antifungal activity against selected plant and human pathogens. Bioactive metabolites were identified through chromatographic techniques. The mode of action of those metabolites was evaluated through various spectroscopic techniques. The production of antifungal metabolite was optimized also. In particular VOCs (volatile organic compounds) of TML9 were tested in vitro for their anti-phytopathogenic activity. Ethyl acetate (EA) extract of cell-free culture components of Colletotrichum aenigma TML3 exhibited broad-spectrum antifungal activity against four species of Candida and the major constituents reported were 6-pentyl-2H-pyran-2-one, 2-Nonanone, 1 propanol 2-amino. The volatile metabolites, trans-ocimene, geraniol, and 4-terpinyl acetate, produced from Curvularia lunata TML9, inhibited the growth of some selected phyto pathogens. EA extract hampered the biofilm formation, minimised the haemolytic effect, and blocked the transformation of Candida albicans (MTCC 4748) from yeast to hyphal form with a Minimum Fungicidal Concentration (MFC) of 200-600 µg mL-1. Central carbohydrate metabolism, ergosterol synthesis, and membrane permeability were adversely affected and caused the lethal leakage of necessary macromolecules of C. albicans. Volatile metabolites inhibited the growth of phytopathogens i.e., Rhizoctonia solani, Alternaria alternata, Botrytis cinerea, Cercospora beticola, Penicillium digitatum, Aspergillus fumigatus, Ceratocystis ulmi, Pythium ultimum up to 89% with an IC50 value of 21.3-69.6 µL 50 mL-1 and caused leakage of soluble proteins and other intracellular molecules. Citrusy sweet odor volatiles of TML9 cultured in wheat-husk minimised the infections of Penicillium digitatum (green mold), in VOC-exposed sweet oranges (Citrus sinensis). Volatile and non-volatile antifungal metabolites of these two T. majus endophytes hold agricultural and pharmaceutical interests. Metabolites of TML3 have strong anti-Candida activity and require further assessment for therapeutic applications. Also, volatile metabolites of TML9 can be further studied as a source of antifungals. The present investigational outcomes bio-prospects the efficacy of fungal endophytes of Garden Nasturtium.
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Affiliation(s)
- Hiran Kanti Santra
- Microbiology and Microbial Biotechnology Laboratory, Department of Botany and Forestry, Vidyasagar University, Midnapore, West Bengal, 721102, India
| | - Riya Dutta
- Center for Life Sciences, Vidyasagar University, Midnapore, West Bengal, 721102, India
| | - Debdulal Banerjee
- Microbiology and Microbial Biotechnology Laboratory, Department of Botany and Forestry, Vidyasagar University, Midnapore, West Bengal, 721102, India.
- Center for Life Sciences, Vidyasagar University, Midnapore, West Bengal, 721102, India.
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Gowtham HG, Hema P, Murali M, Shilpa N, Nataraj K, Basavaraj GL, Singh SB, Aiyaz M, Udayashankar AC, Amruthesh KN. Fungal Endophytes as Mitigators against Biotic and Abiotic Stresses in Crop Plants. J Fungi (Basel) 2024; 10:116. [PMID: 38392787 PMCID: PMC10890593 DOI: 10.3390/jof10020116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/23/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
The escalating global food demand driven by a gradually expanding human population necessitates strategies to improve agricultural productivity favorably and mitigate crop yield loss caused by various stressors (biotic and abiotic). Biotic stresses are caused by phytopathogens, pests, and nematodes, along with abiotic stresses like salt, heat, drought, and heavy metals, which pose serious risks to food security and agricultural productivity. Presently, the traditional methods relying on synthetic chemicals have led to ecological damage through unintended impacts on non-target organisms and the emergence of microbes that are resistant to them. Therefore, addressing these challenges is essential for economic, environmental, and public health concerns. The present review supports sustainable alternatives, emphasizing the possible application of fungal endophytes as innovative and eco-friendly tools in plant stress management. Fungal endophytes demonstrate capabilities for managing plants against biotic and abiotic stresses via the direct or indirect enhancement of plants' innate immunity. Moreover, they contribute to elevated photosynthesis rates, stimulate plant growth, facilitate nutrient mineralization, and produce bioactive compounds, hormones, and enzymes, ultimately improving overall productivity and plant stress resistance. In conclusion, harnessing the potentiality of fungal endophytes represents a promising approach toward the sustainability of agricultural practices, offering effective alternative solutions to reduce reliance on chemical treatments and address the challenges posed by biotic and abiotic stresses. This approach ensures long-term food security and promotes environmental health and economic viability in agriculture.
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Affiliation(s)
- H G Gowtham
- Department of Studies and Research in Food Science and Nutrition, KSOU, Mysuru 570006, Karnataka, India
| | - P Hema
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Mahadevamurthy Murali
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - N Shilpa
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - K Nataraj
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
- PG Department of Botany, Maharani's Science College for Women, JLB Road, Mysuru 570005, Karnataka, India
| | - G L Basavaraj
- PG Department of Botany, Maharani's Science College for Women, JLB Road, Mysuru 570005, Karnataka, India
| | - Sudarshana Brijesh Singh
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Mohammed Aiyaz
- Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - A C Udayashankar
- Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - Kestur Nagaraj Amruthesh
- Department of Studies in Botany, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
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Sharma I, Raina A, Choudhary M, Apra, Kaul S, Dhar MK. Fungal endophyte bioinoculants as a green alternative towards sustainable agriculture. Heliyon 2023; 9:e19487. [PMID: 37662754 PMCID: PMC10472071 DOI: 10.1016/j.heliyon.2023.e19487] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 08/14/2023] [Accepted: 08/24/2023] [Indexed: 09/05/2023] Open
Abstract
Over the past half century, limited use of synthetic fertilizers, pesticides, and conservation of the environment and natural resources have become the interdependent goals of sustainable agriculture. These practices support agriculture sustainability with less environmental and climatic impacts. Therefore, there is an upsurge in the need to introduce compatible booster methods for maximizing net production. The best straightforward strategy is to explore and utilize plant-associated beneficial microorganisms and their products. Bioinoculants are bioformulations consisting of selected microbial strains on a suitable carrier used in the enhancement of crop production. Fungal endophytes used as bioinoculants confer various benefits to the host, such as protection against pathogens by eliciting immune response, mineralization of essential nutrients, and promoting plant growth. Besides, they also produce various bioactive metabolites, phytohormones, and volatile organic compounds. To design various bioformulations, transdisciplinary approaches like genomics, transcriptomics, metabolomics, proteomics, and microbiome modulation strategies like gene editing and metabolic reconstruction have been explored. These studies will refine the existing knowledge on the diversity, phylogeny and beneficial traits of the microbes. This will also help in synthesizing microbial consortia by evaluating the role of structural and functional elements of communities in a controlled manner. The present review summarizes the beneficial aspects associated with fungal endophytes for capitalizing agricultural outputs, enlists various multi-omics techniques for understanding and modulating the mechanism involved in endophytism and the generation of new bioformulations for providing novel solutions for the enhancement of crop production.
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Affiliation(s)
- Itika Sharma
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Ashish Raina
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Malvi Choudhary
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Apra
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Sanjana Kaul
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Manoj K. Dhar
- Plant Genome Research Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
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Segaran G, Sathiavelu M. Fungicidal and plant growth-promoting traits of Lasiodiplodia pseudotheobromae, an endophyte from Andrographis paniculata. FRONTIERS IN PLANT SCIENCE 2023; 14:1125630. [PMID: 37426966 PMCID: PMC10329105 DOI: 10.3389/fpls.2023.1125630] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 05/23/2023] [Indexed: 07/11/2023]
Abstract
Introdution Fungal endophytes are widespread and dwell inside plant cells for at least part of their life without producing any symptoms of infection. Distinct host plants may have different fungal endophyte rates and community compositions. Despite this, the endophytic fungi connected with the host plant and their hostile behaviors, remain unknown. Methods The objective of the current research was to isolate and identify endophytic fungal species from the root of Andrographis paniculata. The effects of fungal isolate APR5 on the mycelial growth of phytopathogens and the production of plant-promoting traits were assessed. Results and discussion Endophytic fungal isolate APR5 showed higher inhibitory efficacy in dual and double plate assay against the tested phytopathogenic fungi. The scanning electron microscope analysis demonstrated that the phytopathogenic fungal hyphae were coiled by endophytes which makes them shrink and disintegrate. Further, an ethyl acetate crude extract effectively suppressed the mycelium growth of Rhizoctonia solani by 75 ± 0.1% in an agar well diffusion assay. The fungal isolate APR5 was identified as Lasiodiplodia pseudotheobromae using the nuclear ribosomal DNA internal transcribed spacer (ITS) region and qualitatively evaluated for their capacity to produce plant growth-promoting hormones. Gas chromatography-mass spectrometry was implemented to acquire a preliminary understanding of the secondary metabolic profile of ethyl acetate crude extract. 1-octadecene, erythritol, niacin, oleic acid, phenol, pantolactone, phenyl ethyl alcohol, p-cresol, and tbutyl hydroquinone are the metabolites analyzed in a crude extract of APR5 isolate and are reported to have antimicrobial properties.
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Ma JT, Dong XY, Li ZH, Yan H, He J, Liu JK, Feng T. Antibacterial Metabolites from Kiwi Endophytic Fungus Fusarium tricinctum, a Potential Biocontrol Strain for Kiwi Canker Disease. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:7679-7688. [PMID: 37167018 DOI: 10.1021/acs.jafc.3c00233] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Pseudomonas syringae pv. actinidiae (Psa) is a Gram-negative bacterium causing the kiwifruit canker disease, resulting in serious economic losses to the kiwifruit industry. This study investigated the use of an endophytic fungus, Fusarium tricinctum, obtained from the kiwi plant (Actinidia chinesis) as a potential biocontrol strain against the Psa. F. tricinctum showed an inhibition rate of 59.5% in vitro against Psa. Bioassay-guided isolation was conducted on the cultural broth of F. tricinctum and seven new imidazole alkaloids, (±)-fusaritricine J ((±)-1) and fusaritricines K-P (2-7), and four enniatins (8-11) were identified. Their absolute configurations were established through extensive spectroscopic methods, quantum chemical calculations, and X-ray single crystal diffraction. Compounds 1, 4, 5, and 8-11 showed comparable anti-bacterial activities against Psa as positive control, with MIC values of 25-50 μg/mL. Further cell membrane permeability assay suggested that the most active compound 4 could destroy the bacterial cell wall structure. Hence, F. tricinctum metabolites could be applied as potential anti-Psa agents, and F. tricinctum could be considered a biocontrol strain for the control of the kiwifruit canker disease.
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Affiliation(s)
- Jin-Tao Ma
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Xin-Yue Dong
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Zheng-Hui Li
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - He Yan
- College of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Juan He
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
- National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
| | - Tao Feng
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
- National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
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11
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Nair RR, Peterson AT. Mapping the global distribution of invasive pest Drosophila suzukii and parasitoid Leptopilina japonica: implications for biological control. PeerJ 2023; 11:e15222. [PMID: 37123003 PMCID: PMC10135410 DOI: 10.7717/peerj.15222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 03/22/2023] [Indexed: 05/02/2023] Open
Abstract
Insect pest invasions cause significant damage to crop yields, and the resultant economic losses are truly alarming. Climate change and trade liberalization have opened new ways of pest invasions. Given the consumer preference towards organic agricultural products and environment-friendly nature of natural pest control strategies, biological control is considered to be one of the potential options for managing invasive insect pests. Drosophila suzukii (Drosophilidae) is an extremely damaging fruit pest, demanding development of effective and sustainable biological control strategies. In this study, we assessed the potential of the parasitoid Leptopilina japonica (Figitidae) as a biocontrol agent for D. suzukii using ecological niche modeling approaches. We developed global-scale models for both pest and parasitoid to identify four components necessary to derive a niche based, target oriented prioritization approach to plan biological control programs for D. suzukii: (i) potential distribution of pest D. suzukii, (ii) potential distribution of parasitoid L. japonica, (iii) the degree of overlap in potential distributions of pest and parasitoid, and (iv) biocontrol potential of this system for each country. Overlapping suitable areas of pest and parasitoid were identified at two different thresholds and at the most desirable threshold (E = 5%), potential for L. japonica mediated biocontrol management existed in 125 countries covering 1.87 × 107 km2, and at the maximum permitted threshold (E = 10%), land coverage was reduced to 1.44 × 107 km2 in 121 countries. Fly pest distributional information as a predictor variable was not found to be improving parasitoid model performance, and globally, only in half of the countries, >50% biocontrol coverage was estimated. We therefore suggest that niche specificities of both pest and parasitoid must be included in site-specific release planning of L. japonica for effective biocontrol management aimed at D. suzukii. This study can be extended to design cost-effective pre-assessment strategies for implementing any biological control management program.
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Affiliation(s)
- Rahul R. Nair
- Biodiversity Institute, University of Kansas, Lawrence, KS, United States of America
| | - A. Townsend Peterson
- Biodiversity Institute, University of Kansas, Lawrence, KS, United States of America
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12
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He YK, Yang Q, Sun YR, Zeng XY, Jayawardena RS, Hyde KD, Wang Y. Additions to Neopestalotiopsis (Amphisphaeriales, Sporocadaceae) fungi: two new species and one new host record from China. Biodivers Data J 2022; 10:e90709. [PMID: 36761578 PMCID: PMC9848506 DOI: 10.3897/bdj.10.e90709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/19/2022] [Indexed: 11/12/2022] Open
Abstract
Background In this study, three Neopestalotiopsis taxa were identified, associated with leaves of Zingiberofficinale, Elaeagnuspungens and Salaccazalacca. New information Based on morphology and multi-gene analyses of the internal transcribed spacer (ITS), beta-tubulin (TUB2) and translation elongation factor 1-alpha (TEF1), the five strains of Neopestalotiopsis represent two novel and one known species. They are introduced with descriptions, illustrations and notes herein.
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Affiliation(s)
- Yu-Ke He
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, ThailandCenter of Excellence in Fungal Research, Mae Fah Luang UniversityChiang Rai 57100Thailand,Department of Plant Pathology, Agriculture College, Guizhou University, Guiyang, 550025, ChinaDepartment of Plant Pathology, Agriculture College, Guizhou UniversityGuiyang, 550025China,School of Science, Mae Fah Luang University, Chiang Rai 57100, ThailandSchool of Science, Mae Fah Luang UniversityChiang Rai 57100Thailand
| | - Qi Yang
- Department of Plant Pathology, Agriculture College, Guizhou University, Guiyang, 550025, ChinaDepartment of Plant Pathology, Agriculture College, Guizhou UniversityGuiyang, 550025China
| | - Ya-Ru Sun
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, ThailandCenter of Excellence in Fungal Research, Mae Fah Luang UniversityChiang Rai 57100Thailand
| | - Xiang-Yu Zeng
- Department of Plant Pathology, Agriculture College, Guizhou University, Guiyang, 550025, ChinaDepartment of Plant Pathology, Agriculture College, Guizhou UniversityGuiyang, 550025China
| | - Ruvishika S. Jayawardena
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, ThailandCenter of Excellence in Fungal Research, Mae Fah Luang UniversityChiang Rai 57100Thailand
| | - Kevin D. Hyde
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, ThailandCenter of Excellence in Fungal Research, Mae Fah Luang UniversityChiang Rai 57100Thailand
| | - Yong Wang
- Department of Plant Pathology, Agriculture College, Guizhou University, Guiyang, 550025, ChinaDepartment of Plant Pathology, Agriculture College, Guizhou UniversityGuiyang, 550025China
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