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Fang M, Long W, Sun J, Wang A, Chen L, Cui Y, Huang Z, Li J, Ruan W, Rasmann S, Wei X. Toxicity of fungal-derived volatile organic compounds against root-knot nematodes. PEST MANAGEMENT SCIENCE 2023; 79:5162-5172. [PMID: 37574969 DOI: 10.1002/ps.7719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/09/2023] [Accepted: 08/14/2023] [Indexed: 08/15/2023]
Abstract
BACKGROUND Root-knot nematodes (RKNs), including Meloidogyne species, are among the most destructive plant-parasites worldwide. Recent evidence suggests that entomopathogenic fungi (EPF) can antagonize RKNs. Such antagonistic effects are likely mediated by toxic metabolites, including volatile organic compounds (VOCs), produced by the fungi. However, how widespread these effects are across EPF species, and which VOCs mediate negative interactions between EPF and RKNs needs to be further elucidated. RESULTS First, we evaluated the nematicidal effect of VOCs emitted by 46 EPF isolates against Meloidogyne incognita and found variable toxicity depending on the isolate. Second, we measured the nematicidal effect of highly toxic isolates, including species in the genus Talaromyces, Aspergillus, Clonostachys, and Purpureocillium and, third, we analyzed the nematicidal effect of major VOCs, including 2-methyl-1-propanol, 3-methyl-1-butanol, isopropyl alcohol and 2-methyl-3-pentanone. The mortality of M. incognita juveniles (J2s) was generally high (50%) either via airborne or in-solution contact with VOCs. Moreover, the tested VOCs significantly inhibited egg hatching, and repelled J2s away from the VOCs. CONCLUSION This study not only provides insights into the ecological function of VOCs in the rhizosphere, but also provides new approaches for developing environmentally friendly control methods of RKNs in agroecosystems. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Ming Fang
- College of Life Sciences, Nankai University, Tianjin, China
| | - Wenxin Long
- School of Mathematical Sciences and LPMC, Nankai University, Tianjin, China
| | - Jie Sun
- College of Life Sciences, Nankai University, Tianjin, China
| | - Ailing Wang
- College of Life Sciences, Nankai University, Tianjin, China
| | - Lei Chen
- College of Life Sciences, Nankai University, Tianjin, China
| | | | | | | | - Weibin Ruan
- College of Life Sciences, Nankai University, Tianjin, China
| | - Sergio Rasmann
- Laboratory of Functional Ecology, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Xianqin Wei
- College of Life Sciences, Nankai University, Tianjin, China
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Nie H, Lv B, Sun M, Zhong Z, Li S. Pre-treatment with Dazomet enhances the biocontrol efficacy of purpureocillium lilacinum to Meloidogyne incognita. BMC Microbiol 2023; 23:244. [PMID: 37653404 PMCID: PMC10469884 DOI: 10.1186/s12866-023-02978-8] [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] [Accepted: 08/14/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND Meloidogyne incognita greatly restricts the production of protected vegetables in China. Application of biocontrol agent Purpureocillium lilacinum is an important practice to control the nematode; however, instability usually occurs especially in heavily infested field. This study aimed to illustrate the high efficiency of P. lilacinum agent with fumigant Dazomet in vitro. RESULTS P. lilacinum YES-2-14 showed strong parasitic and nematicidal activities to M. incognita. Pre-treatment with Dazomet significantly enhanced the biocontrol effects of the fungus. After fumigation with Dazomet at a dosage of 7.5 mg kg- 1 soil, parasitism of YES-2-14 on M. incognita eggs increased by more than 50%. Meanwhile, when P. lilacinum fermentation filtrate treated following Dazomet fumigation at 10 and 20 mg kg- 1 soil, the mortalities of second-stage juveniles (J2s) increased by 110.2% and 72.7%, respectively. Both Dazomet and P. lilacinum significantly reduced the penetration ability of J2s to tomato roots. When P. lilacinum filtrate used alone, the J2s penetrating into the young roots decreased by 48.8% at 4 dpi; while in the combined treatment, almost no J2 was detected within the roots at 4 dpi and the number of knots reduced by more than 99% at 45 dpi, indicating a synergistic effect of the biocontrol fungus and fumigant. CONCLUSIONS Pre-treatment with Dazomet greatly increased the biocontrol efficacy of P. lilacinum to M. incognita. This research provides insight into the efficient management of plant parasitic nematodes and effective use of biocontrol agents.
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Affiliation(s)
- Haizhen Nie
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Binna Lv
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Manhong Sun
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Zengming Zhong
- Beijing Qigao Biological Technology Co. Ltd, Beijing, 100193, China
| | - Shidong Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Dos Santos MSN, Ody LP, Kerber BD, Araujo BA, Oro CED, Wancura JHC, Mazutti MA, Zabot GL, Tres MV. New frontiers of soil fungal microbiome and its application for biotechnology in agriculture. World J Microbiol Biotechnol 2023; 39:287. [PMID: 37632593 DOI: 10.1007/s11274-023-03728-8] [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: 06/21/2023] [Accepted: 08/10/2023] [Indexed: 08/28/2023]
Abstract
The fungi-based technology provided encouraging scenarios in the transition from a conventionally based economic system to the potential security of sources closely associated with the agricultural sphere such as the agriculture. In recent years, the intensification of fungi-based processes has generated significant gains, additionally to the production of materials with significant benefits and strong environmental importance. Furthermore, the growing concern for human health, especially in the agriculture scenario, has fostered the investigation of organisms with high biological and beneficial potential for use in agricultural systems. Accordingly, this study offered a comprehensive review of the diversity of the soil fungal microbiome and its main applications in a biotechnological approach aimed at agriculture and food chain-related areas. Moreover, the spectrum of opportunities and the extensive optimization platform for obtaining fungi compounds and metabolites are discussed. Finally, future perspectives regarding the insurgency of innovations and challenges on the broad rise of visionary solutions applied to the biotechnology context are provided.
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Affiliation(s)
- Maicon S N Dos Santos
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM),, 1040, Sete de Setembro St., Center DC, Cachoeira do Sul, RS 96508-010, Brazil
| | - Lissara P Ody
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM),, 1040, Sete de Setembro St., Center DC, Cachoeira do Sul, RS 96508-010, Brazil
| | - Bruno D Kerber
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM),, 1040, Sete de Setembro St., Center DC, Cachoeira do Sul, RS 96508-010, Brazil
| | - Beatriz A Araujo
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM),, 1040, Sete de Setembro St., Center DC, Cachoeira do Sul, RS 96508-010, Brazil
| | - Carolina E D Oro
- Department of Food Engineering, Integrated Regional University of Alto Uruguay and Missions, 1621, Sete de Setembro Av., Fátima, Erechim, RS 99709-910, Brazil
| | - João H C Wancura
- Department of Chemical Engineering, Federal University of Santa Maria (UFSM), 1000, Roraima Av., Camobi, Santa Maria, RS 97105-900, Brazil
| | - Marcio A Mazutti
- Department of Chemical Engineering, Federal University of Santa Maria (UFSM), 1000, Roraima Av., Camobi, Santa Maria, RS 97105-900, Brazil
| | - Giovani L Zabot
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM),, 1040, Sete de Setembro St., Center DC, Cachoeira do Sul, RS 96508-010, Brazil
| | - Marcus V Tres
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM),, 1040, Sete de Setembro St., Center DC, Cachoeira do Sul, RS 96508-010, Brazil.
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