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Qian X, Qin Y, Sarasiya S, Chen J. Transcriptomic profiling of adding cobalt chloride to improve dendrobine-type total alkaloid production. Appl Microbiol Biotechnol 2024; 108:26. [PMID: 38170314 DOI: 10.1007/s00253-023-12869-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 11/09/2023] [Accepted: 11/19/2023] [Indexed: 01/05/2024]
Abstract
Trichoderma longibrachiatum UN32 is known for its efficient production of dendrobine-type total alkaloids (DTTAs). This study aimed to determine the optimal medium composition for the UN32 strain using response surface methodology. Key factors, including glucose, beef extract, and CoCl2, were selected through the Plackett-Burman design. Subsequently, a factorial optimization approach was employed using the steepest ascent design, and 17 trial sets were completed via the Box-Behnken design. The optimal medium composition was found to consist of 29.4 g/L of glucose, 17.3 g/L of beef extract, and 0.28 mmol/L of CoCl2. This optimized medium resulted in an impressive 80.8% increase in mycelial dry weight (reaching 12.303 g/L) and a substantial 76.4% boost in DTTA production (reaching 541.63 ± 46.95 μg). Furthermore, the fermentation process was scaled up to a 5-L bioreactor, leading to a DTTA production approximately 1.95 times than the control. Transcriptome analysis of strain UN32 in response to CoCl2 supplementation revealed significant changes in the expression of critical genes associated with the TCA cycle and L-valine, L-leucine, and L-isoleucine biosynthesis changed. These alterations resulted in a heightened influx of acetyl-CoA into DTTA production. Additionally, the expression of genes related to antioxidant enzymes was modified to maintain homeostasis of reactive oxygen species (ROS). A potential mechanism for the accumulation of DTTAs based on ROS as a signal transduction was proposed. These findings provide valuable insights into the regulatory mechanisms of DTTA biosynthesis, potentially offering a method to enhance the production of secondary metabolites in the UN32 strain. KEY POINTS: • After the RSM optimization, there is a substantial increase of 80.8% in biomass production and a significant 76.4% rise in DTTA production. • Transcriptome analysis revealed that the inclusion of CoCl2 supplements resulted in an enhanced influx of acetyl-CoA. • Proposed a mechanism for the accumulation of DTTAs for the role of ROS as a signal transduction pathway.
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Affiliation(s)
- Xu Qian
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, Jiangsu, China
| | - Yitong Qin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, Jiangsu, China
| | - Surendra Sarasiya
- Bioresource Institute of Healthy Utilization, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Jishuang Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, Jiangsu, China.
- Bioresource Institute of Healthy Utilization, Zunyi Medical University, Zunyi, 563000, Guizhou, China.
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Sarsaiya S, Jain A, Shu F, Yang M, Pu M, Jia Q, Gong Q, Wu Q, Qian X, Shi J, Chen J. Enhancing dendrobine production in Dendrobium nobile through mono-culturing of endophytic fungi, Trichoderma longibrachiatum (MD33) in a temporary immersion bioreactor system. FRONTIERS IN PLANT SCIENCE 2024; 15:1302817. [PMID: 38348269 PMCID: PMC10859523 DOI: 10.3389/fpls.2024.1302817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 01/12/2024] [Indexed: 02/15/2024]
Abstract
Introduction Dendrobine, a valuable alkaloid found in Dendrobium nobile, possesses significant pharmaceutical potential. Methods In this study, we explored innovative approaches to enhance dendrobine production by utilizing endophytic fungi in a Temporary Immersion Bioreactor System (TIBS, Nanjing BioFunction Co. Ltd., China) and traditional test bottles. Dendrobine was unequivocally identified and characterised in D. nobile co-culture seedlings through UHPLC analysis and LC-MS qTOF analysis, supported by reference standards. Results The CGTB (control group) and EGTB (experimental group) 12-month-old D. nobile seedlings exhibited similar peak retention times at 7.6±0.1 minutes, with dendrobine identified as C16H25NO2 (molecular weight 264.195). The EGTB, co-cultured with Trichoderma longibrachiatum (MD33), displayed a 2.6-fold dendrobine increase (1804.23 ng/ml) compared to the CGTB (685.95 ng/ml). Furthermore, a bioanalytical approach was applied to investigate the mono-culture of T. longibrachiatum MD33 with or without D. nobile seedlings in test bottles. The newly developed UHPLC-MS method allowed for dendrobine identification at a retention time of 7.6±0.1 minutes for control and 7.6±0.1 minutes for co-culture. Additionally, we explored TIBS to enhance dendrobine production. Co-culturing D. nobile seedlings with Trichoderma longibrachiatum (MD33) in the TIBS system led to a substantial 9.7-fold dendrobine increase (4415.77 ng/ml) compared to the control (454.01 ng/ml) after just 7 days. The comparative analysis of dendrobine concentration between EGTB and EGTIBS highlighted the remarkable potential of TIBS for optimizing dendrobine production. Future research may focus on scaling up the TIBS approach for commercial dendrobine production and investigating the underlying mechanisms for enhanced dendrobine biosynthesis in D. nobile. The structural elucidation of dendrobine was achieved through 1H and 13C NMR spectroscopy, revealing a complex array of proton environments and distinct carbon environments, providing essential insights for the comprehensive characterization of the compound. Discussion These findings hold promise for pharmaceutical and industrial applications of dendrobine and underline the role of endophytic fungi in enhancing secondary metabolite production in medicinal plants.
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Affiliation(s)
- Surendra Sarsaiya
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
- Bioresource Institute for Healthy Utilization (BIHU), Zunyi Medical University, Zunyi, China
| | - Archana Jain
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Fuxing Shu
- Bioresource Institute for Healthy Utilization (BIHU), Zunyi Medical University, Zunyi, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Mingfa Yang
- Bioresource Institute for Healthy Utilization (BIHU), Zunyi Medical University, Zunyi, China
| | - Mengxuan Pu
- Bioresource Institute for Healthy Utilization (BIHU), Zunyi Medical University, Zunyi, China
| | - Qi Jia
- Bioresource Institute for Healthy Utilization (BIHU), Zunyi Medical University, Zunyi, China
| | - Qihai Gong
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Qin Wu
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Xu Qian
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Jingshan Shi
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Jishuang Chen
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
- Bioresource Institute for Healthy Utilization (BIHU), Zunyi Medical University, Zunyi, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
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Imran M, Abo-Elyousr KAM, Mousa MAA, Saad MM. Use of Trichoderma culture filtrates as a sustainable approach to mitigate early blight disease of tomato and their influence on plant biomarkers and antioxidants production. FRONTIERS IN PLANT SCIENCE 2023; 14:1192818. [PMID: 37528983 PMCID: PMC10388550 DOI: 10.3389/fpls.2023.1192818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/19/2023] [Indexed: 08/03/2023]
Abstract
Introduction Alternaria solani is a challenging pathogen in the tomato crop globally. Chemical control is a rapid approach, but emerging fungicide resistance has become a severe threat. The present study investigates the use of culture filtrates (CFs) of three species of Trichoderma spp. to control this disease. Methods Highly virulent A. solani strain and three Trichoderma fungal strains viz., T. harzianum (Accession No: MW590687), T. atroviride (Accession No: MW590689) and T. longibrachiatum (Accession No: MW590688) previously isolated by authors were used in this study. The efficacy of culture filtrates (CFs) to mitigate early blight disease were tested under greenhouse and field conditions, experiments were conducted in different seasons of 2020 using a tomato variety "doucen". Results and discussion The CFs of T. harzianum, T. longibrachiatum, and T. atroviride significantly inhibited the in vitro mycelial growth of A. solani (62.5%, 48.73%, and 57.82%, respectively, followed by control 100%). In the GC-MS analysis of Trichoderma CF volatile compounds viz., harzianic acid (61.86%) in T. harzianum, linoleic acid (70.02%) in T. atroviride, and hydroxymethylfurfural (68.08%) in the CFs of T. longibrachiatum, were abundantly present. Foliar application of CFs in the greenhouse considerably reduced the disease severity (%) in all treatments, viz., T. harzianum (18.03%), T. longibrachiatum (31.91%), and T. atroviride (23.33%), followed by infected control (86.91%), and positively affected the plant biomarkers. In the greenhouse, the plants treated with CFs demonstrated higher flavonoids after 6 days of inoculation, whereas phenolic compounds increased after 2 days. The CF-treated plants demonstrated higher antioxidant enzymes, i.e., phenylalanine ammonia-lyase (PAL) and peroxidase (POD), after 4 days, whereas polyphenol oxidase (PPO) was higher after 6 days of inoculation, followed by healthy and infected controls. In open field conditions, disease severity in CF-treated plants was reduced in both seasons as compared to naturally infected plants, whereas CF-treated plants exhibited a higher fruit yield than controls. The present results conclude that CFs can be a potential biocontrol candidate and a promising alternative to the early blight pathogen for sustainable production.
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Affiliation(s)
- Muhammad Imran
- Department of Agriculture, Faculty of Environmental Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Kamal A. M. Abo-Elyousr
- Department of Agriculture, Faculty of Environmental Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Plant Pathology, Faculty of Agriculture, University of Assiut, Assiut, Egypt
| | - Magdi A. A. Mousa
- Department of Agriculture, Faculty of Environmental Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Vegetable Crops, Faculty of Agriculture, Assiut University, Assiut, Egypt
| | - Maged M. Saad
- DARWIN21, Center for Desert Agriculture, Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
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Rutkowska N, Drożdżyński P, Ryngajłło M, Marchut-Mikołajczyk O. Plants as the Extended Phenotype of Endophytes-The Actual Source of Bioactive Compounds. Int J Mol Sci 2023; 24:10096. [PMID: 37373241 DOI: 10.3390/ijms241210096] [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: 05/19/2023] [Revised: 06/07/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
For thousands of years, plants have been used for their medicinal properties. The industrial production of plant-beneficial compounds is facing many drawbacks, such as seasonal dependence and troublesome extraction and purification processes, which have led to many species being on the edge of extinction. As the demand for compounds applicable to, e.g., cancer treatment, is still growing, there is a need to develop sustainable production processes. The industrial potential of the endophytic microorganisms residing within plant tissues is undeniable, as they are often able to produce, in vitro, similar to or even the same compounds as their hosts. The peculiar conditions of the endophytic lifestyle raise questions about the molecular background of the biosynthesis of these bioactive compounds in planta, and the actual producer, whether it is the plant itself or its residents. Extending this knowledge is crucial to overcoming the current limitations in the implementation of endophytes for larger-scale production. In this review, we focus on the possible routes of the synthesis of host-specific compounds in planta by their endophytes.
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Affiliation(s)
- Natalia Rutkowska
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Piotr Drożdżyński
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Małgorzata Ryngajłło
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Olga Marchut-Mikołajczyk
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
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Chen W, Wang J, Song J, Sun Q, Zhu B, Qin L. Exogenous and Endophytic Fungal Communities of Dendrobium nobile Lindl. across Different Habitats and Their Enhancement of Host Plants' Dendrobine Content and Biomass Accumulation. ACS OMEGA 2023; 8:12489-12500. [PMID: 37033800 PMCID: PMC10077458 DOI: 10.1021/acsomega.3c00608] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Both the biosynthesis and array of bioactive and medicinal compounds in plants can be influenced by interactions with endophytic and exogenous fungi. However, the composition of endophytic and exogenous fungal communities associated with many medicinal plants is unknown, and the mechanism by which these fungi stimulate the secondary metabolism of host plants is unclear. In this study, we conducted a correlative analysis between endophytic and exogenous fungi and dendrobine and biomass accumulation in Dendrobium nobile across five Chinese habitats: wild Danxia rock, greenhouse-associated large Danxia stone, broken Danxia stone, broken coarse sandstone, and wood spile. Across habitats, fungal communities exhibited significant differences. The abundances of Phyllosticta, Trichoderma, and Hydropus were higher in wild habitats than in greenhouse habitats. Wild habitats were host to a higher diversity and richness of exogenous fungi than were greenhouse habitats. However, there was no significant difference in endophytic fungal diversity between habitats. The differences between the fungal communities' effects on the dendrobine content and biomass of D. nobile were attributable to the composition of endophytic and exogenous fungi. Exogenous fungi had a greater impact than endophytic fungi on the accumulation of fresh weight (FW) and dendrobine in D. nobile. Furthermore, D. nobile samples with higher exogenous fungal richness and diversity exhibited higher dendrobine content and FW. Phyllosticta was the only genus to be significantly positively correlated with both FW and dendrobine content. A total of 86 strains of endophytic fungi were isolated from the roots, stems, and leaves of D. nobile, of which 8 strains were found to be symbiotic with D. nobile tissue-cultured seedlings. The strain DN14 (Phyllosticta fallopiae) was found to promote not only biomass accumulation (11.44%) but also dendrobine content (33.80%) in D. nobile tissue-cultured seedlings. The results of this study will aid in the development of strategies to increase the production of dendrobine in D. nobile. This work could also facilitate the screening of beneficial endophytic and exogenous fungal probiotics for use as biofertilizers in D. nobile.
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Digra S, Nonzom S. An insight into endophytic antimicrobial compounds: an updated analysis. PLANT BIOTECHNOLOGY REPORTS 2023; 17:1-31. [PMID: 37359493 PMCID: PMC10013304 DOI: 10.1007/s11816-023-00824-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 12/30/2022] [Accepted: 02/28/2023] [Indexed: 06/28/2023]
Abstract
Resistance in micro-organisms against antimicrobial compounds is an emerging phenomenon in the modern era as compared to the traditional world which brings new challenges to discover novel antimicrobial compounds from different available sources, such as, medicinal plants, various micro-organisms, like, bacteria, fungi, algae, actinomycetes, and endophytes. Endophytes reside inside the plants without exerting any harmful impact on the host plant along with providing ample of benefits. In addition, they are capable of producing diverse antimicrobial compounds similar to their host, allowing them to serve as useful micro-organism for a range of therapeutic purposes. In recent years, a large number of studies on the antimicrobial properties of endophytic fungi have been carried out globally. These antimicrobials have been used to treat various bacterial, fungal, and viral infections in humans. In this review, the potential of fungal endophytes to produce diverse antimicrobial compounds along with their various benefits to their host have been focused on. In addition, classification systems of endophytic fungi as well as the need for antimicrobial production with genetic involvement and some of the vital novel antimicrobial compounds of endophytic origin can further be utilized in the pharmaceutical industries for various formulations along with the role of nanoparticles as antimicrobial agents have been highlighted.
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Affiliation(s)
- Shivani Digra
- Depatment of Botany, University of Jammu, Jammu, J&K 180006 India
| | - Skarma Nonzom
- Depatment of Botany, University of Jammu, Jammu, J&K 180006 India
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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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Sharma A, Kaushik N, Sharma A, Marzouk T, Djébali N. Exploring the potential of endophytes and their metabolites for bio-control activity. 3 Biotech 2022; 12:277. [PMID: 36275362 PMCID: PMC9470801 DOI: 10.1007/s13205-022-03321-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 08/19/2022] [Indexed: 11/01/2022] Open
Abstract
In the current scenario, extensive use of synthetic chemicals in agriculture is creating notable problems such as disease and pest resistance, residues, yield loss, and soil unproductiveness. These harmful chemicals are eventually reaching our food plate through bioaccumulation and biomagnification in a crop. As a result, beneficial microorganisms are regularly being explored as a safer option in the agriculture sector for their ability to produce valuable bioactive secondary metabolites, particularly for crop protection. Such natural (bio) products are harmless to plants, humans, and the environment. In our quest for the search of the sources of bioactive constituents from the microorganisms, endophytes are the front-runner. They mutually reside inside the plant providing support against phytopathogens by releasing an array of bioactive secondary metabolites building climate reliance of the host plant. The purpose of this review is to examine the biocontrol potential of endophytes against bacterial and fungal pathogens in sustainable agriculture. We also attempt to explain the structure and activity of the secondary metabolites produced by bacterial and fungal endophytes in conjunction with their biocontrol function. Additionally, we address potential future research directions for endophytes as biopesticides.
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Affiliation(s)
- Ayushi Sharma
- Amity Food and Agriculture Foundation, Amity University Uttar Pradesh, Noida, 201313 India
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, 201313 India
| | - Nutan Kaushik
- Amity Food and Agriculture Foundation, Amity University Uttar Pradesh, Noida, 201313 India
| | - Abhishek Sharma
- Amity Food and Agriculture Foundation, Amity University Uttar Pradesh, Noida, 201313 India
| | - Takwa Marzouk
- Centre of Biotechnology of Borj Cedria (CBBC), Laboratory of Bioactive Substances, BP 901, Hammam-lif 2050, Tunisia
| | - Naceur Djébali
- Centre of Biotechnology of Borj Cedria (CBBC), Laboratory of Bioactive Substances, BP 901, Hammam-lif 2050, Tunisia
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Li L, Liu C, Wen W, Li Q, Pan T, Li Z, Qian G, He Y, Xu D. Dendrobine biosynthesis in Dendrobium nobile in four different habitats is affected by the variations in the endophytic fungal community. Front Microbiol 2022; 13:981070. [PMID: 36177465 PMCID: PMC9513314 DOI: 10.3389/fmicb.2022.981070] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/22/2022] [Indexed: 11/15/2022] Open
Abstract
Dendrobium nobile, an epiphytic plant, is a traditional medicinal herb with abundant endophytes. It is unclear whether the variation in the diversity and abundance of endophytes could stimulate the biosynthesis of medicinal compounds in the plant. In this study, we collected fresh stems of D. nobile from four habitats for investigating the fungal community structure, dendrobine content, and environment factors and their correlations. The results indicated no significant difference in endophytic fungal diversity among the habitats; however, different dominant or special endophytic genera were observed in the hosts from different habitats. The altitude was observed to be positively related to the dendrobine content, as the stems collected from the altitude of 692 m exhibited the highest level of dendrobine. Furthermore, the relative abundance of Toxicocladosporium was found to be positively correlated with the altitude and dendrobine content. The epiphytic matrix exhibited a significant negative correlation with the relative abundance of the endophytic fungus Gibberella but did not exhibit any significant correlation with the dendrobine content. The results indicated that the abundance of endophytes in D. nobile was affected by the altitude and epiphytic matrix and that high Toxicocladosporium abundance and high altitude were conducive to dendrobine production.
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Affiliation(s)
- Lin Li
- Department of Cell Biology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Chaobo Liu
- Department of Cell Biology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Wei’e Wen
- Department of Cell Biology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Qingqing Li
- Department of Cell Biology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Tiantian Pan
- Department of Cell Biology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Zhaogao Li
- Department of Cell Biology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Gang Qian
- Department of Cell Biology, Zunyi Medical University, Zunyi, Guizhou, China
- *Correspondence: Gang Qian,
| | - Yuqi He
- School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
- Engineering Research Center of Key Technology Development for Guizhou Provincial Dendrobium nobile Industry, Zunyi Medical University, Zunyi, Guizhou, China
- *Correspondence: Gang Qian,
| | - Delin Xu
- Department of Cell Biology, Zunyi Medical University, Zunyi, Guizhou, China
- Engineering Research Center of Key Technology Development for Guizhou Provincial Dendrobium nobile Industry, Zunyi Medical University, Zunyi, Guizhou, China
- *Correspondence: Gang Qian,
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Jia Q, Wang L, Qian X, Jin H, Shu F, Sarsaiya S, Jin L, Chen J. Transcriptome Analysis of Dendrobine Biosynthesis in Trichoderma longibrachiatum MD33. Front Microbiol 2022; 13:890733. [PMID: 35979500 PMCID: PMC9376458 DOI: 10.3389/fmicb.2022.890733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022] Open
Abstract
Dendrobine is a representative component of Dendrobium nobile, and its pharmacological effects have been extensively studied. Trichoderma longibrachiatum MD33 was isolated from the stem of Dendrobium nobile which can produce dendrobine. In order to understand the effect of Methyl Jasmonate (MeJA) on the production of dendrobine, transcriptome analysis was performed after MeJA treatment in the MD33 and control groups. The dendrobine production of MeJA (20 μmol/L) treatment group was 44.6% higher than that of control. In this study, the RNA sequencing technology was applied, a total of 444 differentially expressed genes (DEGs) in the control and MeJA treatment groups, including 226 up-regulated genes and 218 down-regulated genes. The Kyoto Encyclopedia of Genes and Genomes annotation showed that numbers of DEGs were associated with the putative alkaloid biosynthetic pathway in T Trichoderma longibrachiatum MD33. Several MVA pathway enzyme-coding genes (isopentenyl-diphosphate Delta-isomerase, iphosphomevalonate decarboxylase and farnesyl diphosphate synthase) were found to be differentially expressed, suggesting an active precursor supply for alkaloid biosynthesis after MeJA treatment, in other wise, dendrobine may synthesis through the MVA pathway in MD33. Numerous MeJA-induced P450 family genes, aminotransferase genes and methyltransferase genes were identified, providing several important candidates to further elucidate the dendrobine biosynthetic pathway of T. longibrachiatum MD33. Furthermore, several MeJA-induced transcription factors (TFs) encoding genes were identified, suggesting a complex genetic network affecting the dendrobine in T. longibrachiatum MD33. These findings reveal the regulation mechanism underlying the MeJA-induced accumulation of dendrobine in T. longibrachiatum MD33.
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Affiliation(s)
- Qi Jia
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
- Bioresource Institute for Healthy Utilization, Zunyi Medical University, Zunyi, China
| | - Lina Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Xu Qian
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Hui Jin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Fuxing Shu
- Bioresource Institute for Healthy Utilization, Zunyi Medical University, Zunyi, China
| | - Surendra Sarsaiya
- Bioresource Institute for Healthy Utilization, Zunyi Medical University, Zunyi, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Leilei Jin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Jishuang Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
- Bioresource Institute for Healthy Utilization, Zunyi Medical University, Zunyi, China
- *Correspondence: Jishuang Chen,
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Lu A, Jiang Y, Wu J, Tan D, Qin L, Lu Y, Qian Y, Bai C, Yang J, Ling H, Shi J, Yang Z, He Y. Opposite trends of glycosides and alkaloids in Dendrobium nobile of different age based on UPLC-Q/TOF-MS combined with multivariate statistical analyses. PHYTOCHEMICAL ANALYSIS : PCA 2022; 33:619-634. [PMID: 35238089 PMCID: PMC9541022 DOI: 10.1002/pca.3115] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 05/28/2023]
Abstract
INTRODUCTION Alkaloids and glycosides are the active ingredients of the herb Dendrobium nobile, which is used in traditional Chinese medicine. The pharmacological effects of alkaloids include neuroprotective effects and regulatory effects on glucose and lipid metabolism, while glycosides improve the immune system. The pharmacological activities of the above chemical components are significantly different. In practice, the stems of 3-year-old D. nobile are usually used as the main source of Dendrobii Caulis. However, it has not been reported whether this harvesting time is appropriate. OBJECTIVE The aim of this study was to compare the chemical characteristics of D. nobile in different growth years (1-3 years). METHODS In this study, ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry (UPLC-Q/TOF-MS) was employed to analyze the constituents of D. nobile. The relative abundance of each constituent was analyzed with multivariate statistical analyses to screen the characteristic constituents that contributed to the characterization and classification of D. nobile. Dendrobine, a component of D. nobile that is used for quality control according to the Chinese Pharmacopoeia, was assayed by gas chromatography. RESULTS As a result, 34 characteristic constituents (VIP > 2) were identified or tentatively identified as alkaloids and glycosides based on MS/MS data. Moreover, the content of alkaloids decreased over time, whereas the content of glycosides showed the opposite trend. The absolute quantification of dendrobine was consistent with the metabolomics results. CONCLUSION Our findings provide valuable information to optimize the harvest period and a reference for the clinical application of D. nobile.
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Affiliation(s)
- An‐jing Lu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of PharmacyZunyi Medical UniversityZunyiGuizhouChina
- Shanghai Standard Technology Co., LtdShanghaiChina
| | - Yuan Jiang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of PharmacyZunyi Medical UniversityZunyiGuizhouChina
| | - Jia Wu
- Shanghai Standard Technology Co., LtdShanghaiChina
| | - Dao‐peng Tan
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of PharmacyZunyi Medical UniversityZunyiGuizhouChina
| | - Lin Qin
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of PharmacyZunyi Medical UniversityZunyiGuizhouChina
| | - Yan‐liu Lu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of PharmacyZunyi Medical UniversityZunyiGuizhouChina
| | - Yong Qian
- Shanghai Standard Technology Co., LtdShanghaiChina
| | - Chao‐jun Bai
- Guangxi Shenli Pharmaceutical Co., Ltd. YulinGuangxiChina
| | - Ji‐yong Yang
- Chishui Xintian Chinese Medicine Industry Development Co., LtdZunyiGuizhouChina
| | - Hua Ling
- School of PharmacyGeorgia Campus ‐ Philadelphia College of Osteopathic MedicineSuwaneeGAUSA
| | - Jing‐shan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of PharmacyZunyi Medical UniversityZunyiGuizhouChina
| | - Zhou Yang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of PharmacyZunyi Medical UniversityZunyiGuizhouChina
- Shanghai Standard Technology Co., LtdShanghaiChina
| | - Yu‐qi He
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of PharmacyZunyi Medical UniversityZunyiGuizhouChina
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12
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Tyśkiewicz R, Nowak A, Ozimek E, Jaroszuk-Ściseł J. Trichoderma: The Current Status of Its Application in Agriculture for the Biocontrol of Fungal Phytopathogens and Stimulation of Plant Growth. Int J Mol Sci 2022; 23:2329. [PMID: 35216444 PMCID: PMC8875981 DOI: 10.3390/ijms23042329] [Citation(s) in RCA: 80] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/13/2022] [Accepted: 02/18/2022] [Indexed: 02/06/2023] Open
Abstract
Rhizosphere filamentous fungi of the genus Trichoderma, a dominant component of various soil ecosystem mycobiomes, are characterized by the ability to colonize plant roots. Detailed knowledge of the properties of Trichoderma, including metabolic activity and the type of interaction with plants and other microorganisms, can ensure its effective use in agriculture. The growing interest in the application of Trichoderma results from their direct and indirect biocontrol potential against a wide range of soil phytopathogens. They act through various complex mechanisms, such as mycoparasitism, the degradation of pathogen cell walls, competition for nutrients and space, and induction of plant resistance. With the constant exposure of plants to a variety of pathogens, especially filamentous fungi, and the increased resistance of pathogens to chemical pesticides, the main challenge is to develop biological protection alternatives. Among non-pathogenic microorganisms, Trichoderma seems to be the best candidate for use in green technologies due to its wide biofertilization and biostimulatory potential. Most of the species from the genus Trichoderma belong to the plant growth-promoting fungi that produce phytohormones and the 1-aminocyclopropane-1-carboxylate (ACC) deaminase enzyme. In the present review, the current status of Trichoderma is gathered, which is especially relevant in plant growth stimulation and the biocontrol of fungal phytopathogens.
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Affiliation(s)
- Renata Tyśkiewicz
- Analytical Laboratory, Łukasiewicz Research Network–New Chemical Syntheses Institute, Aleja Tysiąclecia Państwa Polskiego 13a, 24-110 Puławy, Poland
| | - Artur Nowak
- Department of Industrial and Environmental Microbiology, Faculty of Biology and Biotechnology, Institute of Biological Science, Maria-Curie Skłodowska University, Akademicka 19, 20-033 Lublin, Poland; (E.O.); (J.J.-Ś.)
| | - Ewa Ozimek
- Department of Industrial and Environmental Microbiology, Faculty of Biology and Biotechnology, Institute of Biological Science, Maria-Curie Skłodowska University, Akademicka 19, 20-033 Lublin, Poland; (E.O.); (J.J.-Ś.)
| | - Jolanta Jaroszuk-Ściseł
- Department of Industrial and Environmental Microbiology, Faculty of Biology and Biotechnology, Institute of Biological Science, Maria-Curie Skłodowska University, Akademicka 19, 20-033 Lublin, Poland; (E.O.); (J.J.-Ś.)
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13
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Deshmukh SK, Dufossé L, Chhipa H, Saxena S, Mahajan GB, Gupta MK. Fungal Endophytes: A Potential Source of Antibacterial Compounds. J Fungi (Basel) 2022; 8:164. [PMID: 35205918 PMCID: PMC8877021 DOI: 10.3390/jof8020164] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/04/2022] [Accepted: 02/05/2022] [Indexed: 02/04/2023] Open
Abstract
Antibiotic resistance is becoming a burning issue due to the frequent use of antibiotics for curing common bacterial infections, indicating that we are running out of effective antibiotics. This has been more obvious during recent corona pandemics. Similarly, enhancement of antimicrobial resistance (AMR) is strengthening the pathogenicity and virulence of infectious microbes. Endophytes have shown expression of various new many bioactive compounds with significant biological activities. Specifically, in endophytic fungi, bioactive metabolites with unique skeletons have been identified which could be helpful in the prevention of increasing antimicrobial resistance. The major classes of metabolites reported include anthraquinone, sesquiterpenoid, chromone, xanthone, phenols, quinones, quinolone, piperazine, coumarins and cyclic peptides. In the present review, we reported 451 bioactive metabolites isolated from various groups of endophytic fungi from January 2015 to April 2021 along with their antibacterial profiling, chemical structures and mode of action. In addition, we also discussed various methods including epigenetic modifications, co-culture, and OSMAC to induce silent gene clusters for the production of noble bioactive compounds in endophytic fungi.
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Affiliation(s)
- Sunil K Deshmukh
- TERI-Deakin Nano Biotechnology Centre, The Energy and Resources Institute, Darbari Seth Block, IHC Complex, Lodhi Road, New Delhi 110003, Delhi, India
- Agpharm Bioinnovations LLP, Incubatee: Science and Technology Entrepreneurs Park (STEP), Thapar Institute of Engineering and Technology, Patiala 147004, Punjab, India
| | - Laurent Dufossé
- Chimie et Biotechnologie des Produits Naturels (CHEMBIOPRO Lab) & ESIROI Agroalimentaire, Université de la Réunion, 15 Avenue René Cassin, 97744 Saint-Denis, France
| | - Hemraj Chhipa
- College of Horticulture and Forestry, Agriculture University Kota, Jhalawar 322360, Rajasthan, India
| | - Sanjai Saxena
- Agpharm Bioinnovations LLP, Incubatee: Science and Technology Entrepreneurs Park (STEP), Thapar Institute of Engineering and Technology, Patiala 147004, Punjab, India
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala 147004, Punjab, India
| | - Girish B Mahajan
- HiMedia Laboratories Pvt. Ltd., Mumbai 400086, Maharashtra, India
| | - Manish Kumar Gupta
- SGT College of Pharmacy, SGT University, Gurugram 122505, Haryana, India
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14
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Wang SS, Liu JM, Sun J, Huang YT, Jin N, Li MM, Liang YT, Fan B, Wang FZ. Analysis of Endophytic Bacterial Diversity From Different Dendrobium Stems and Discovery of an Endophyte Produced Dendrobine-Type Sesquiterpenoid Alkaloids. Front Microbiol 2022; 12:775665. [PMID: 35069479 PMCID: PMC8767021 DOI: 10.3389/fmicb.2021.775665] [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] [Received: 09/14/2021] [Accepted: 11/25/2021] [Indexed: 11/13/2022] Open
Abstract
As the unique component of Dendrobium, dendrobine-type sesquiterpenoid alkaloids (DSAs) possess a variety of medicinal properties. It has been well documented that plant endophytes can in vitro synthesize secondary metabolites identical or similar to metabolites produced by their host plants. This study aimed to investigate the composition and distribution of endophytic bacteria of Dendrobium stems by Illumina MiSeq platform sequencing and cultivation-dependent methods and then to assess the potential for endophytic bacteria to produce DSAs. Results indicated that it was necessary to combine both cultivation-dependent and cultivation-independent methods to analyze the community structure of endophytic bacterial in plants comprehensively. The length of the Dendrobium stems influenced the endophytic bacterial community. The diversity and richness of endophytic bacteria in group J10_15cm of stems were the highest, which showed a significant difference from the other stem groups. However, there was no certain connection between the diversity and richness of endophytic bacteria and the content of dendrobine. It was most likely due to the influence of several specific endophytic bacteria genera, such as Sphingomonas and Rhodococcus. Athelia rolfsii, Myrothecium roridum, as pathogenic fungi, and Pectobacterium carotovorum subsp. actinidiae, as pathogenic bacteria of Dendrobium, were used to determine the antimicrobial activities. In these assays, six strains belonging to five genera showed antimicrobial activity against at least two phytopathogens. The strain BL-YJ10_15-29 (Paracoccus pueri THG-N2.35, 98.98%) showed the best antimicrobial activity against the three phytopathogens. In addition, 2 DSAs (6-hydroxydendrobine and nobilonine) were identified in the fermentation supernatant of the strain CM-YJ10_15-44 (Pseudomonas protegens CHA0, 99.24%), whereas the whole-genome analysis results further demonstrated that the precursors of the two DSAs [geranyl-PP and (E, E)-famesyl-PP] were synthesized mainly through the methyl-D-erythritol 4-phosphate pathway in this strain. This study provides new insight into the studies on the biosynthesis of DSAs and provides potential biocontrol bacteria.
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Affiliation(s)
- Shan-Shan Wang
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jia-Meng Liu
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jing Sun
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ya-Tao Huang
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Nuo Jin
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Min-Min Li
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yan-Tian Liang
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bei Fan
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Feng-Zhong Wang
- Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China
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15
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Qian X, Jin H, Chen Z, Dai Q, Sarsaiya S, Qin Y, Jia Q, Jin L, Chen J. Comparative Transcriptome Analysis of Genes Involved in Sesquiterpene Alkaloid Biosynthesis in Trichoderma longibrachiatum MD33 and UN32. Front Microbiol 2022; 12:800125. [PMID: 34975823 PMCID: PMC8714885 DOI: 10.3389/fmicb.2021.800125] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 11/15/2021] [Indexed: 12/13/2022] Open
Abstract
Trichoderma longibrachiatum MD33, a sesquiterpene alkaloid-producing endophyte isolated from Dendrobium nobile, shows potential medical and industrial applications. To understand the molecular mechanisms of sesquiterpene alkaloids production, a comparative transcriptome analysis was performed on strain MD33 and its positive mutant UN32, which was created using Ultraviolet (UV) mutagenesis and nitrogen ion (N+) implantation. The alkaloid production of UN32 was 2.62 times more than that of MD33. One thousand twenty-four differentially expressed genes (DEGs), including 519 up-regulated and 505 down-regulated genes, were identified. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed 139 GO terms and 87 biosynthesis pathways. Dendrobine, arguably the main sesquiterpene alkaloid the strain MD33 produced, might start synthesis through the mevalonate (MVA) pathway. Several MVA pathway enzyme-coding genes (hydroxy-methylglutaryl-CoA synthase, mevalonate kinase, and farnesyl diphosphate synthase) were found to be differentially expressed, suggesting that physical mutagenesis can disrupt genome integrity and gene expression. Some backbone post-modification enzymes and transcript factors were either discovered, suggesting the sesquiterpene alkaloid metabolism in T. longibrachiatum is a complex genetic network. Our findings help to shed light on the underlying molecular regulatory mechanism of sesquiterpene alkaloids production in T. longibrachiatum.
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Affiliation(s)
- Xu Qian
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China.,Bioresource Institute for Healthy Utilization, Zunyi Medical University, Zunyi, China
| | - Hui Jin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Zhuojun Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Qingqing Dai
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Surendra Sarsaiya
- Bioresource Institute for Healthy Utilization, Zunyi Medical University, Zunyi, China
| | - Yitong Qin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Qi Jia
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China.,Bioresource Institute for Healthy Utilization, Zunyi Medical University, Zunyi, China
| | - Leilei Jin
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Jishuang Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China.,Bioresource Institute for Healthy Utilization, Zunyi Medical University, Zunyi, China
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16
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Kassam R, Yadav J, Chawla G, Kundu A, Hada A, Jaiswal N, Bollinedi H, Kamil D, Devi P, Rao U. Identification, Characterization, and Evaluation of Nematophagous Fungal Species of Arthrobotrys and Tolypocladium for the Management of Meloidogyne incognita. Front Microbiol 2021; 12:790223. [PMID: 34956156 PMCID: PMC8702965 DOI: 10.3389/fmicb.2021.790223] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 11/10/2021] [Indexed: 11/13/2022] Open
Abstract
Root-knot nematodes belonging to the genus Meloidogyne are agriculturally important pests, and biocontrol strategies offer safer alternatives for their management. In the present study, two fungal species from Indian soils were identified as Arthrobotrys thaumasia and Tolypocladium cylindrosporum based on morphological characteristics and further confirmed using molecular markers. In vitro evaluation of A. thaumasia against M. incognita and Caenorhabditis elegans showed 82 and 73% parasitism, respectively, whereas T. cylindrosporum gave 65.2 and 57.7% parasitism, respectively. Similarly, culture filtrates of A. thaumasia caused 57.7 and 53.7% mortality of M. incognita and C. elegans, respectively, whereas T. cylindrosporum caused higher mortality of 87.3 and 64%, respectively. Besides, greenhouse evaluation of both fungi against M. incognita infecting tomato significantly reduced nematode disease burden reflecting parasitic success measured as the total number of galls, egg masses, eggs per egg mass, and derived nematode multiplication factor. Application of A. thaumasia and T. cylindrosporum reduced nematode multiplication factor by 80 and 95%, respectively, compared with control. General metabolite profiling of tested fungi using gas chromatography–mass spectrometry and ultra-performance liquid chromatography–quadrupole/time of flight mass spectrometry reported for the first time here showed presence of various volatile and non-volatile compounds with nematicidal activity, viz., trimethyl-heptadiene, methyl-hexadecanol, dodecadienal, decane, terpendole E, dodecane, acetamido-6-anthraquinone, and hexadecanol. Also, other compounds such as undecane, dibutyl-disulfide, octadecenal, paganin, talathermophilin, dactylarin, tolypyridone A, tolypyridone B, pyridoxatin, and destruxin were identified, reported in the literature to possess antibacterial, antifungal, and insecticidal properties. This is the first report of the occurrence of both fungi from India and pioneer demonstration of T. cylindrosporum for root-knot nematode management.
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Affiliation(s)
- Rami Kassam
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Jyoti Yadav
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Gautam Chawla
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Aditi Kundu
- Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Alkesh Hada
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Nisha Jaiswal
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Haritha Bollinedi
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Deeba Kamil
- Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Prameela Devi
- Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Uma Rao
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, India
- *Correspondence: Uma Rao, ; orcid.org/0000-0002-1233-2921
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17
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Favre-Godal Q, Schwob P, Lecoultre N, Hofstetter V, Gourguillon L, Riffault-Valois L, Lordel-Madeleine S, Gindro K, Choisy P. Plant-microbe features of Dendrobium fimbriatum (Orchidaceae) fungal community. Symbiosis 2021. [DOI: 10.1007/s13199-021-00786-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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18
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In Vitro and In Vivo Antifungal Activity of Sorbicillinoids Produced by Trichoderma longibrachiatum. J Fungi (Basel) 2021; 7:jof7060428. [PMID: 34071658 PMCID: PMC8229967 DOI: 10.3390/jof7060428] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 11/16/2022] Open
Abstract
In the search for antifungal agents from marine resources, we recently found that the culture filtrate of Trichoderma longibrachiatum SFC100166 effectively suppressed the development of tomato gray mold, rice blast, and tomato late blight. The culture filtrate was then successively extracted with ethyl acetate and n-butanol to identify the fungicidal metabolites. Consequently, a new compound, spirosorbicillinol D (1), and a new natural compound, 2',3'-dihydro-epoxysorbicillinol (2), together with 11 known compounds (3-13), were obtained from the solvent extracts. The chemical structures were determined by spectroscopic analyses and comparison with literature values. The results of the in vitro antifungal assay showed that of the tested fungal pathogens, Phytophthora infestans was the fungus most sensitive to the isolated compounds, with MIC values ranging from 6.3 to 400 µg/mL, except for trichotetronine (9) and trichodimerol (10). When tomato plants were treated with the representative compounds (4, 6, 7, and 11), bisvertinolone (6) strongly reduced the development of tomato late blight disease compared to the untreated control. Taken together, our results revealed that the culture filtrate of T. longibrachiatum SFC100166 and its metabolites could be useful sources for the development of new natural agents to control late blight caused by P. infestans.
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19
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Chen X, Li Q, Xu X, Ding G, Guo S, Li B. Effects of the Endophytic Fungus MF23 on Dendrobium nobile Lindl. in an Artificial Primary Environment. ACS OMEGA 2021; 6:10047-10053. [PMID: 34056160 PMCID: PMC8153664 DOI: 10.1021/acsomega.0c06325] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
The quality of Dendrobium nobile Lindl. is related to its endophytic fungi. It has been reported that the mycorrhizal fungus MF23 helps to increase the content of dendrobine in Dendrobium, but few studies have explained the mechanism underlying this phenomenon. In a previous study, we verified the mechanism of symbiosis between MF23 and D. nobile on agar medium. The research carried out in this study on bark medium, similar to the natural environment, is of great importance because of its benefits for wide application. We found a significant effect, especially in the later period of cultivation, in which the highest dendrobine content in the experimental group was 0.147%, which is equivalent to 2.88 times that of the control group, and suggesting that MF23 promoted D. nobile in the natural environment, which verifies the application of the technique in field conditions. This result also implied that post-modification enzyme genes might play an important role in stimulating the biosynthesis of dendrobine.
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20
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Jain A, Sarsaiya S, Chen J, Wu Q, Lu Y, Shi J. Changes in global Orchidaceae disease geographical research trends: recent incidences, distributions, treatment, and challenges. Bioengineered 2020; 12:13-29. [PMID: 33283604 PMCID: PMC8806279 DOI: 10.1080/21655979.2020.1853447] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Many of the Orchidaceae species are threatened due to environmental changes and over exploitation for full fill global demands. The main objective of this article was critically analyzed the recent global distribution of Orchidaceae diversity, its disease patterns, microbial disease identification, detection, along with prevention and challenges. Critical analysis findings revealed that Orchidaceae growth and developments were affected indirectly or directly as a result of complex microbial ecological interactions. Studies have identified many species associated with orchids, some are pathogenic and cause symptoms such as soft rot, brown rot, brown spot, black rot, wilt, foliar, root rot, anthracnose, leaf spot. The review was provided the comprehensive data to evaluate the identification and detection of microbial disease, which is the most important challenge for sustainable cultivation of Orchidaceae diversity. Furthermore, this article is the foremost of disease triggering microbes, orchid relations, and assimilates various consequences that both promoted the considerate and facts of such disease multipart, and will permit the development of best operative disease management practices.
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Affiliation(s)
- Archana Jain
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University , Zunyi, Guizhou, China
| | - Surendra Sarsaiya
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University , Zunyi, Guizhou, China.,Bioresource Institute for Healthy Utilization, Zunyi Medical University , Zunyi, Guizhou, China.,Laboratory, CES Analytical and Research Services India Private Limited (Formerly Known as Creative Enviro Services) , Bhopal, Madhya Pradesh, India
| | - Jishuang Chen
- Bioresource Institute for Healthy Utilization, Zunyi Medical University , Zunyi, Guizhou, China
| | - Qin Wu
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University , Zunyi, Guizhou, China
| | - Yuanfu Lu
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University , Zunyi, Guizhou, China
| | - Jingshan Shi
- Key Laboratory of Basic Pharmacology and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University , Zunyi, Guizhou, China
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Current Progress on Endophytic Microbial Dynamics on Dendrobium Plants. Fungal Biol 2020. [DOI: 10.1007/978-3-030-41870-0_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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