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Luo H, Meng S, Deng Y, Deng Z, Shi H. In vitro antifungal activity of lasiodiplodin, isolated from endophytic fungus Lasiodiplodia pseudotheobromae J-10 associated with Sarcandra glabra and optimization of culture conditions for lasiodiplodin production. Arch Microbiol 2023; 205:140. [PMID: 36964826 DOI: 10.1007/s00203-023-03440-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 03/26/2023]
Abstract
A macrolide antibiotic, lasiodiplodin was isolated from the endophytic fungus (EF) Lasiodiplodia pseudotheobromae J-10 associated with the medicinal plant Sarcandra glabra. In vitro antifungal assay demonstrated the inhibitory activity of lasiodiplodin against the growth of six phytopathogenic fungi, with the IC50 values ranging between 15.50 and 52.30 μg/mL. The highest antifungal activities were recorded against Exserohilum turcicum, Colletotrichum capsici, and Pestalotiopsis theae, with IC50 values of 15.50, 15.90, and 17.55 μg/mL, respectively. The underlying mechanism of the antifungal activity of lasiodiplodin against E. turcicum included the alteration of its colony morphology and disturbance of its cell membrane integrity. In addition, the optimization of L. pseudotheobromae J-10 culture conditions increased lasiodiplodin yield to 52.33 mg/L from 0.59 mg/L at pre-optimization. This is the first report on the isolation and identification of antifungal compound from the EF L. pseudotheobromae J-10 associated with S. glabra, as well as on the optimization of L. pseudotheobromae J-10 culture conditions to increase lasiodiplodin yield. The results of this study support that lasiodiplodin is a natural compound with high potential bioactivity against phytopathogens, and provide a basis for further study of the EF associated with S. glabra.
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Affiliation(s)
- Haiyu Luo
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education-Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, 1 Yanzhong Road, Yanshan District, Guilin, 541006, Guangxi, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, 541006, Guangxi, China
- Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, 541006, Guangxi, China
| | - Siyu Meng
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education-Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, 1 Yanzhong Road, Yanshan District, Guilin, 541006, Guangxi, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, 541006, Guangxi, China
- Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, 541006, Guangxi, China
| | - Yecheng Deng
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education-Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, 1 Yanzhong Road, Yanshan District, Guilin, 541006, Guangxi, China.
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, 541006, Guangxi, China.
- Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, 541006, Guangxi, China.
| | - Zhiyong Deng
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education-Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, 1 Yanzhong Road, Yanshan District, Guilin, 541006, Guangxi, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, 541006, Guangxi, China
- Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, 541006, Guangxi, China
| | - Huilu Shi
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education-Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, 1 Yanzhong Road, Yanshan District, Guilin, 541006, Guangxi, China
- Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, 541006, Guangxi, China
- Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, 541006, Guangxi, China
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YE HAITAO, LUO SHIQIONG, YANG ZHANNAN, WANG YUANSHUAI, DING QIAN. Latent Pathogenic Fungi in the Medicinal Plant Houttuynia cordata Thunb. Are Modulated by Secondary Metabolites and Colonizing Microbiota Originating from Soil. Pol J Microbiol 2021; 70:359-372. [PMID: 34584530 PMCID: PMC8458996 DOI: 10.33073/pjm-2021-034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/13/2021] [Accepted: 07/19/2021] [Indexed: 11/05/2022] Open
Abstract
Latent pathogenic fungi (LPFs) affect plant growth, but some of them may stably colonize plants. LPFs were isolated from healthy Houttuynia cordata rhizomes to reveal this mechanism and identified as Ilyonectria liriodendri, an unidentified fungal sp., and Penicillium citrinum. Sterile H. cordata seedlings were cultivated in sterile or non-sterile soils and inoculated with the LPFs, followed by the plants' analysis. The in vitro antifungal activity of H. cordata rhizome crude extracts on LPF were determined. The effect of inoculation of sterile seedlings by LPFs on the concentrations of rhizome phenolics was evaluated. The rates of in vitro growth inhibition amongst LPFs were determined. The LPFs had a strong negative effect on H. cordata in sterile soil; microbiota in non-sterile soil eliminated such influence. There was an interactive inhibition among LPFs; the secondary metabolites also regulated their colonization in H. cordata rhizomes. LPFs changed the accumulation of phenolics in H. cordata. The results provide that colonization of LPFs in rhizomes was regulated by the colonizing microbiota of H. cordata, the secondary metabolites in the H. cordata rhizomes, and the mutual inhibition and competition between the different latent pathogens.
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Affiliation(s)
- HAI-TAO YE
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang Guizhou, China
| | - SHI-QIONG LUO
- School of Life Science, Guizhou Normal University, Guiyang Guizhou, China
| | - ZHAN-NAN YANG
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang Guizhou, China
| | - YUAN-SHUAI WANG
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang Guizhou, China
| | - QIAN DING
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang Guizhou, China
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Biological Control of Pear Valsa Canker Caused by Valsa pyri Using Penicillium citrinum. HORTICULTURAE 2021. [DOI: 10.3390/horticulturae7070198] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Valsa canker caused by Valsa pyri is one of the most destructive diseases of commercial pear. For the present analysis, 29 different endophytic fungal strains were isolated from the branches of a healthy pear tree. In dual culture assays, strain ZZ1 exhibited robust antifungal activity against all tested pathogens including Valsa pyri. Microscopic analyses suggested that following co-culture with ZZ1, the hyphae of V. pyri were ragged, thin, and ruptured. ZZ1 also induced significant decreases in lesion length and disease incidence on detached pear branches inoculated with V. pyri. ZZ1 isolate-derived culture filtrates also exhibited antifungal activity against V. pyri, decreasing mycelial growth and conidium germination and inhibiting V. pyri-associated lesion development on pear branches. These results suggest that the ZZ1 isolate has the potential for use as a biological control agent against V. pyri. The strain was further identified as Penicillium citrinum based on its morphological characteristics and molecular analyses. Overall, these data highlight a potentially valuable new biocontrol resource for combating pear Valsa canker.
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Thissera B, Alhadrami HA, Hassan MHA, Hassan HM, Behery FA, Bawazeer M, Yaseen M, Belbahri L, Rateb ME. Induction of Cryptic Antifungal Pulicatin Derivatives from Pantoea agglomerans by Microbial Co-Culture. Biomolecules 2020; 10:E268. [PMID: 32050703 PMCID: PMC7072716 DOI: 10.3390/biom10020268] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 02/03/2020] [Accepted: 02/06/2020] [Indexed: 02/06/2023] Open
Abstract
Microbial co-culture or mixed fermentation proved to be an efficient strategy to expand chemical diversity by the induction of cryptic biosynthetic pathways, and in many cases led to the production of new antimicrobial agents. In the current study, we report a rare example of the induction of silent/cryptic bacterial biosynthetic pathway by the co-culture of Durum wheat plant roots-associated bacterium Pantoea aggolomerans and date palm leaves-derived fungus Penicillium citrinum. The initial co-culture indicated a clear fungal growth inhibition which was confirmed by the promising antifungal activity of the co-culture total extract against Pc. LC-HRMS chemical profiling demonstrated a huge suppression in the production of secondary metabolites (SMs) of axenic cultures of both species with the emergence of new metabolites which were dereplicated as a series of siderophores. Large-scale co-culture fermentation led to the isolation of two new pulicatin derivatives together with six known metabolites which were characterised using HRESIMS and NMR analyses. During the in vitro antimicrobial evaluation of the isolated compounds, pulicatin H (2) exhibited the strongest antifungal activity against Pc, followed by aeruginaldehyde (1) and pulicatin F (4), hence explaining the initial growth suppression of Pc in the co-culture environment.
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Affiliation(s)
- Bathini Thissera
- School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (B.T.); (M.B.); (M.Y.)
| | - Hani A. Alhadrami
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- King Fahd Medical Research Centre, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Marwa H. A. Hassan
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt; (M.H.A.H.); (H.M.H.)
| | - Hossam M. Hassan
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt; (M.H.A.H.); (H.M.H.)
| | - Fathy A. Behery
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
- Department of Pharmacy, College of Pharmacy, Riyadh Elm University, Riyadh 11681, Saudi Arabia
| | - Majed Bawazeer
- School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (B.T.); (M.B.); (M.Y.)
| | - Mohammed Yaseen
- School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (B.T.); (M.B.); (M.Y.)
| | - Lassaad Belbahri
- Laboratory of Soil Biology, University of Neuchatel, 2000 Neuchatel, Switzerland;
| | - Mostafa E. Rateb
- School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (B.T.); (M.B.); (M.Y.)
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt; (M.H.A.H.); (H.M.H.)
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Xing Y, Yang Y, Xu L, Hao N, Zhao R, Wang J, Li S, Zhang D, Zhang T, Kang T. The Diversity of Associated Microorganisms in Different Organs and Rhizospheric Soil of Arctium lappa L. Curr Microbiol 2020; 77:746-754. [PMID: 31915985 DOI: 10.1007/s00284-019-01864-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 12/30/2019] [Indexed: 01/16/2023]
Abstract
Arctium lappa L. is widely used for medicinal purposes across China, and significant effort has been directed toward enhancing its quality. Association with microorganisms has been shown to influence both plant growth and metabolites, providing a possible avenue for its quality improvement. In this study, we investigated the microorganism compositions of the root, stem, leaf, fruit and rhizospheric soil of A. lappa through high-throughput Illumina sequencing of 16S rRNA genes and ITS regions. A total of 796,891 16S rRNA and 626,270 ITS reads were obtained from the samples. Analysis of the sequencing data revealed that bacterial and fungal communities were more diverse in the rhizospheric soil sample compared with other samples. Cyanobacteria, Actinobacteria, Proteobacteria, Firmicutes, and Bacteroidetes phyla were found in all samples. Cyanobacteria was particularly enriched in the root, stem, leaf and fruit at 88.59%, 86.15%, 98.31% and 93.57%, respectively; Actinobacteria was the highest in rhizospheric soil, at 37.53%. Ascomycota was the most dominant fungal phylum, representing 69.17%, 58.18%, 87.93%, 90.18% and 80.21% in the root, stem, leaf, fruit, and rhizospheric soil, respectively. Several novel unclassifiable bacterial and fungal species were also detected. In total, we detected about 922 bacterial and 334 fungal species, which include a number of unclassifiable species. Additionally, the root, stem, leaf, fruit and rhizospheric soil of A. lappa were sources for screening new bioactive metabolites.
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Affiliation(s)
- Yanping Xing
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China
| | - Yanyun Yang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China
| | - Liang Xu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China. .,Liaoning Quality Monitoring and Technology Service Center for Chinese Materia Medica Raw Materials, Dalian, China.
| | - Ning Hao
- Horticultural College, Shenyang Agricultural University, Shenyang, 110866, China
| | - Rong Zhao
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China
| | - Jiahao Wang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China
| | - Shengnan Li
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China
| | - Dachuan Zhang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China
| | - Tingting Zhang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China
| | - Tingguo Kang
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, 116600, China. .,Liaoning Quality Monitoring and Technology Service Center for Chinese Materia Medica Raw Materials, Dalian, China.
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