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Gupta R, Anand G, Pandey R, Bar M, Yadav D. Employing Bacillus and Pseudomonas for phytonematode management in agricultural crops. World J Microbiol Biotechnol 2024; 40:331. [PMID: 39358574 DOI: 10.1007/s11274-024-04137-1] [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: 06/28/2024] [Accepted: 09/10/2024] [Indexed: 10/04/2024]
Abstract
Phytonematodes are responsible for causing significant harm and reducing yields in various agricultural crops. To minimize losses caused by phytonematodes and meet the high demand for agricultural production, it is important to develop effective strategies with minimal environmental impact to manage this biotic stress. Due to the adverse environmental effects associated with synthetic pesticides, it is imperative to use beneficial bacteria, such as Bacillus and Pseudomonas spp., for biocontrol purposes to control phytonematode infestation in agricultural settings. This approach has gained considerable attraction, as there is a promising market for eco-friendly biopesticides based on bacteria that can effectively manage phytonematodes. Furthermore, biocontrol strains of Bacillus and Pseudomonas have the potential to enhance crop productivity by producing various substances that promote plant growth and development. This review aims to explore the role of Bacillus and Pseudomonas spp. in phytonematode management, elucidate different mechanisms by which these bacteria suppress nematode populations, and discuss the future prospects of utilizing these bacteria in agriculture.
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Affiliation(s)
- Rupali Gupta
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Rishon LeZion, Israel
| | - Gautam Anand
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Rishon LeZion, Israel
| | - Rakesh Pandey
- Department of Microbial Technology and Nematology, CSIR- Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow, India
| | - Maya Bar
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Rishon LeZion, Israel.
| | - Dinesh Yadav
- Department of Biotechnology, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur, Uttar Pradesh, India.
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Ye S, Zhou S, Ma Y, Yang J, Shi X, Zhang R, Yang Z, Peng D, Ding Z. Biocontrol activity and potential mechanism of Bacillus cereus G5 against Meloidogyne graminicola. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 204:106079. [PMID: 39277392 DOI: 10.1016/j.pestbp.2024.106079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 07/26/2024] [Accepted: 08/05/2024] [Indexed: 09/17/2024]
Abstract
Root-knot nematodes (Meloidogyne spp.) are highly destructive pests that cause significant yield losses annually. Biological control of nematodes has emerged as a potential alternative in sustainable agriculture. In this study, we originally isolated Bacillus cereus G5 from the rhizosphere soil of rice (Oryza sativa). Treatment with the fermentation supernatant of G5 in vitro demonstrated high toxicity to second-stage juveniles (J2) of Meloidogyne graminicola and remarkably inhibited egg hatching. Moreover, G5 steadily colonized rhizosphere soil and rice seedlings, and exhibited excellent biocontrol efficacy against M. graminicola under greenhouse conditions. Notably, the volatile organic compounds (VOCs) produced by G5 displayed high fumigant activity against M. graminicola. The G5 VOCs efficiently reduced the gall index and nematode population in rice roots, while also promoting rice growth in double-layered pot tests. Additionally, the expression of defense genes involved in the salicylic acid (OsNPR1, OsWRKY45, OsPAL1), jasmonic acid (OsJaMYB, OsAOS2) and ethylene (OsACS1) signalling pathways was significantly upregulated in rice seedlings treated with G5 VOCs. This suggests that G5 VOCs contribute to eliciting plant defense responses. Furthermore, we identified 14 major VOCs produced by G5 using solid-phase micro-extraction gas chromatography and mass spectrometry (SPEM-GC-MS). Notably, allomatrine, morantel, 1-octen-3-ol and 3-methyl-2-butanol displayed strong contact nematicidal activity. Among these, only 1-octen-3-ol demonstrated fumigant activity against J2s of M. graminicola, with an LC50 value of 758.95 mg/L at 24 h. Overall, these results indicated that the B. cereus G5 and its synthetic VOCs possess high potential as biocontrol agents for managing root-knot nematodes.
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Affiliation(s)
- Shan Ye
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan 410128, China; Hunan Provincial Engineering & Technology Research Center for Biopesticide and Formulation Processing, Changsha, Hunan 410128, China
| | - Siyu Zhou
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Yihang Ma
- Hunan Institute of Metrology and Test, Changsha, Hunan 410005, China
| | - Jiahao Yang
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Xuqi Shi
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Ruoyu Zhang
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Zhuhong Yang
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan 410128, China; Hunan Provincial Engineering & Technology Research Center for Biopesticide and Formulation Processing, Changsha, Hunan 410128, China
| | - Deliang Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zhong Ding
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan 410128, China; Hunan Provincial Engineering & Technology Research Center for Biopesticide and Formulation Processing, Changsha, Hunan 410128, China.
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Montejano-Ramírez V, Ávila-Oviedo JL, Campos-Mendoza FJ, Valencia-Cantero E. Microbial Volatile Organic Compounds: Insights into Plant Defense. PLANTS (BASEL, SWITZERLAND) 2024; 13:2013. [PMID: 39124131 PMCID: PMC11314544 DOI: 10.3390/plants13152013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/06/2024] [Accepted: 07/22/2024] [Indexed: 08/12/2024]
Abstract
Volatile organic compounds (VOCs) are low molecular weight molecules that tend to evaporate easily at room temperature because of their low boiling points. VOCs are emitted by all organisms; therefore, inter- and intra-kingdom interactions have been established, which are fundamental to the structuring of life on our planet. One of the most studied interactions through VOCs is between microorganism VOCs (mVOCs) and plants, including those of agricultural interest. The mVOC interactions generate various advantages for plants, ranging from promoting growth to the activation of defense pathways triggered by salicylic acid (systemic acquired resistance) and jasmonic acid (induced systemic resistance) to protect them against phytopathogens. Additionally, mVOCs directly inhibit the growth of phytopathogens, thereby providing indirect protection to plants. Among the current agricultural problems is the extensive use of chemicals, such as fertilizers, intended to combat production loss, and pesticides to combat phytopathogen infection. This causes problems in food safety and environmental pollution. Therefore, to overcome this problem, it is important to identify alternatives that do not generate environmental impacts, such as the application of mVOCs. This review addresses the protective effects of mVOCs emitted by microorganisms from different kingdoms and their implications in plant defense pathways.
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Affiliation(s)
| | | | | | - Eduardo Valencia-Cantero
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Edifico B3, Ciudad Universitaria, Morelia 58030, Mexico; (V.M.-R.); (J.L.Á.-O.); (F.J.C.-M.)
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Krithika VP, Shandeep G, Bellie A, Gulsar Banu J, Mannu J, Suganthy M, Gomathi V, Uma D, Mohan P. Harnessing nature's arsenal: Ochrobactrum bacteria metabolites in the battle against root- knot nematode - Insights from in vitro and molecular docking studies. J Invertebr Pathol 2024; 204:108114. [PMID: 38636720 DOI: 10.1016/j.jip.2024.108114] [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: 12/18/2023] [Revised: 04/08/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
Agricultural Productivity and plant health are threatened by the root-knot nematode. The use of biocontrol agents reduces the need for chemical nematicides and improves the general health of agricultural ecosystems by offering a more environmentally friendly and sustainable method of managing nematode infestations. Plant-parasitic nematodes can be efficiently managed with the use of entomopathogenic nematodes (EPNs), which are widely used biocontrol agents. This study focused on the nematicidal activity of the secondary metabolites present in the bacteria Ochrobactrum sp. identified in the EPN, Heterorhabditisindica against Root-Knot Nematode (Meloidogyne incognita). Its effect on egg hatching and survival of juveniles of root- knot nematode (RKN) was examined. The ethyl acetate component of the cell-free culture (CFC) filtrate of the Ochrobactrum sp. bacteria was tested at four different concentrations (25 %, 50 %, 75 % and 100 %) along with broth and distilled water as control. The bioactive compounds of Ochrobactrum sp. bacteria showed the highest suppression of M. incognita egg hatching (100 %) and juvenile mortality (100 %) at 100 % concentration within 24 h of incubation. In this study, unique metabolite compounds were identified through the Gas Chromatography- Mass Spectrometry (GC-MS) analysis, which were found to have anti- nematicidal activity. In light of this, molecular docking studies were conducted to determine the impact of biomolecules from Ochrobactrum sp. using significant proteins of M. incognita, such as calreticulin, sterol carrier protein 2, flavin-containing monooxygenase, pectate lyase, candidate secreted effector, oesophageal gland cell secretory protein and venom allergen-like protein. The results also showed that the biomolecules from Ochrobactrum sp. had a significant inhibitory effect on the different protein targets of M. incognita. 3-Epimacronine and Heraclenin were found to inhibit most of the chosen target protein. Among the targets, the docking analysis revealed that Heraclenin exhibited the highest binding affinity of -8.6 Kcal/mol with the target flavin- containing monooxygenase. Further, the in vitro evaluation of 3- Epimacronine confirmed their nematicidal activity against M. incognita at different concentrations. In light of this, the present study has raised awareness of the unique biomolecules of the bacterial symbiont Ochrobactrum sp. isolated from H. indica that have nematicidal properties.
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Affiliation(s)
- V P Krithika
- Centre for Agricultural Nanotechnology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India.
| | - Ganeshan Shandeep
- Department of Nematology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - Anita Bellie
- Department of Nematology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India.
| | - J Gulsar Banu
- Principal Scientist (Nematology), ICAR-Central Institute for Cotton Research, Coimbatore, Tamil Nadu, India
| | - Jayakanthan Mannu
- Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - M Suganthy
- Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - V Gomathi
- Centre for Agricultural Nanotechnology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - D Uma
- Department of Biochemistry, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore 641003, India
| | - Prasanthrajan Mohan
- Centre for Agricultural Nanotechnology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
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Liu J, Zhang S, Ma H, Huang J, Xiang M, Liu X. Inhibition and biocontrol potential of Ochrobactrum pseudogrignonense NC1 against four Phytophthora species. J GEN APPL MICROBIOL 2024; 69:327-334. [PMID: 37989280 DOI: 10.2323/jgam.2023.11.001] [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] [Indexed: 11/23/2023]
Abstract
Phytophthora species are highly destructive soilborne oomycetes pathogens that spread through infested soil and water. Ochrobactrum pseudogrignonense NC1 has been shown to inhibit plant parasitic nematodes via volatile organic compounds (VOCs). In this study, we investigated the inhibitory effect of O. pseudogrignonense NC1 against four Phytophthora species on agar plates and in vivo bioassay. We found that NC1 significantly inhibited the mycelial growth and zoospore production of all four species of Phytophthora in a dose-dependent manner. The half maximal inhibitory concentration (IC50) values for inhibition of mycelial growth (or zoospore production) were 26% (14.8%), 18.9% (14.2%), 20.3% (8.3%) and 46.9% (4%) for Phytophthora capsici Leonian, Phytophthora infestans, Phytophthora parasitica var. nicotiana and Phytophthora sojae, respectively. The biocontrol efficiency of NC1 was 46.3% in pepper seedlings against P. capsici, almost 100% in potato tubers against P. infestans, 60% in tomato leave against P. parasitica and 100% in soybean leave against P. sojae, respectively. Our findings suggest that O. pseudogrignonense NC1 has great potential as a biocontrol agent for managing Phytophthora diseases.
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Affiliation(s)
- Jinming Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Mcrobiology and Technology of the Ministry of Education, Department of Microbiology, College of Life Sciences, Nankai University
| | - Shiyu Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Mcrobiology and Technology of the Ministry of Education, Department of Microbiology, College of Life Sciences, Nankai University
| | - Haikun Ma
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Mcrobiology and Technology of the Ministry of Education, Department of Microbiology, College of Life Sciences, Nankai University
| | - Jun Huang
- Shandong Yuanchen Biomedical Technology Group Co., Ltd
| | - Meichun Xiang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences
| | - Xingzhong Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Molecular Mcrobiology and Technology of the Ministry of Education, Department of Microbiology, College of Life Sciences, Nankai University
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Liu H, Fu G, Li Y, Zhang S, Ji X, Qiao K. Biocontrol Efficacy of Bacillus methylotrophicus TA-1 Against Meloidogyne incognita in Tomato. PLANT DISEASE 2023; 107:2709-2715. [PMID: 36774575 DOI: 10.1094/pdis-12-22-2801-re] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Root-knot nematodes (RKNs) are harmful plant-parasitic nematodes of tomatoes which can cause significant yield losses. Therefore, there is increasing interest in exploring the application of bacterial nematicides. The bacterium Bacillus methylotrophicus TA-1 is a broad-spectrum biological control agent; however, its effect on RKNs control remains largely unclear. In this study, the toxicity of B. methylotrophicus TA-1 against Meloidogyne incognita was investigated in vitro, and the potential of B. methylotrophicus TA-1 to decrease infection of RKNs in tomato were evaluated in pot and field trials. Results showed that B. methylotrophicus TA-1 exhibited high nematicidal activity against second-stage juveniles (J2s) and eggs of M. incognita with 50% lethal concentration (LC50) values of 5.80 and 7.00 × 108 colony forming units (CFU)/ml, respectively. In the pot experiments and field trials conducted in 2020 and 2021, tomato plants treated with B. methylotrophicus TA-1 soil drench applied once at 3, 6, and 9 × 108 CFU/plant had significantly higher plant height and greater yield compared with the untreated control. Tomato yields of the treated plots with B. methylotrophicus TA-1 in 2 consecutive years' field trials were between 53.4 to 66.1 and 52.8 to 61.5 t/ha, while they were 49.7 and 48.2 t/ha in the untreated control for each year, respectively. The lowest population densities of M. incognita at 30 and 60 days after treatment were 119 and 135 J2s per 100 g soil in 2020 and 43 and 118 J2s in 2021 in TA-1-treated plots. The lowest gall index of 4.7 and 3.3 in 2020 and 2021, respectively, and the highest yield were all observed in the TA-1 at 9 × 108 CFU/plant treated plants, with no significant differences with the commercial control abamectin. These results provided a basis for further studies of B. methylotrophicus TA-1 formulations, application doses, frequencies, and mechanisms of action, which are necessary before it could be used as a component of integrated management programs to manage RKNs in tomato production.
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Affiliation(s)
- Huimin Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Guanghan Fu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Yujie Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Shouan Zhang
- Tropical Research and Education Center, Department of Plant Pathology, University of Florida, IFAS, Homestead, FL 33031, U.S.A
| | - Xiaoxue Ji
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Kang Qiao
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
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Veronico P, Sasanelli N, Troccoli A, Myrta A, Midthassel A, Butt T. Evaluation of Fungal Volatile Organic Compounds for Control the Plant Parasitic Nematode Meloidogyne incognita. PLANTS (BASEL, SWITZERLAND) 2023; 12:1935. [PMID: 37653851 PMCID: PMC10221407 DOI: 10.3390/plants12101935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 09/02/2023]
Abstract
Plant parasitic nematodes are a serious threat to crop production worldwide and their control is extremely challenging. Fungal volatile organic compounds (VOCs) provide an ecofriendly alternative to synthetic nematicides, many of which have been withdrawn due to the risks they pose to humans and the environment. This study investigated the biocidal properties of two fungal VOCs, 1-Octen-3-ol and 3-Octanone, against the widespread root-knot nematode Meloidogyne incognita. Both VOCs proved to be highly toxic to the infective second-stage juveniles (J2) and inhibited hatching. Toxicity was dependent on the dose and period of exposure. The LD50 of 1-Octen-3-ol and 3-Octanone was 3.2 and 4.6 µL, respectively. The LT50 of 1-Octen-3-ol and 3-Octanone was 71.2 and 147.1 min, respectively. Both VOCs were highly toxic but 1-Octen-3-ol was more effective than 3-Octanone. Exposure of M. incognita egg-masses for 48 h at two doses (0.8 and 3.2 µL) of these VOCs showed that 1-Octen-3-ol had significantly greater nematicidal activity (100%) than 3-Octanone (14.7%) and the nematicide metham sodium (6.1%). High levels of reactive oxygen species detected in J2 exposed to 1-Octen-3-ol and 3-Octanone suggest oxidative stress was one factor contributing to mortality and needs to be investigated further.
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Affiliation(s)
- Pasqua Veronico
- Institute for Sustainable Plant Protection, CNR, Via G. Amendola 122/D, 70126 Bari, Italy; (N.S.); (A.T.)
| | - Nicola Sasanelli
- Institute for Sustainable Plant Protection, CNR, Via G. Amendola 122/D, 70126 Bari, Italy; (N.S.); (A.T.)
| | - Alberto Troccoli
- Institute for Sustainable Plant Protection, CNR, Via G. Amendola 122/D, 70126 Bari, Italy; (N.S.); (A.T.)
| | - Arben Myrta
- Certis Belchim BV, Stadsplateau 16, 3521 AZ Utrecht, The Netherlands; (A.M.); (A.M.)
| | - Audun Midthassel
- Certis Belchim BV, Stadsplateau 16, 3521 AZ Utrecht, The Netherlands; (A.M.); (A.M.)
| | - Tariq Butt
- Department of Biosciences, Swansea University, Singleton Park, Swansea SA2 8PP, UK;
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Pires D, Vicente CSL, Menéndez E, Faria JMS, Rusinque L, Camacho MJ, Inácio ML. The Fight against Plant-Parasitic Nematodes: Current Status of Bacterial and Fungal Biocontrol Agents. Pathogens 2022; 11:1178. [PMID: 36297235 PMCID: PMC9606992 DOI: 10.3390/pathogens11101178] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/08/2022] [Accepted: 10/10/2022] [Indexed: 11/24/2022] Open
Abstract
Plant-parasitic nematodes (PPNs) are among the most notorious and underrated threats to food security and plant health worldwide, compromising crop yields and causing billions of dollars of losses annually. Chemical control strategies rely heavily on synthetic chemical nematicides to reduce PPN population densities, but their use is being progressively restricted due to environmental and human health concerns, so alternative control methods are urgently needed. Here, we review the potential of bacterial and fungal agents to suppress the most important PPNs, namely Aphelenchoides besseyi, Bursaphelenchus xylophilus, Ditylenchus dipsaci, Globodera spp., Heterodera spp., Meloidogyne spp., Nacobbus aberrans, Pratylenchus spp., Radopholus similis, Rotylenchulus reniformis, and Xiphinema index.
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Affiliation(s)
- David Pires
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV, I.P.), Av. da República, 2780-159 Oeiras, Portugal
- Mediterranean Institute for Agriculture, Environment and Development (MED) & Global Change and Sustainability Institute (CHANGE), Institute for Advanced Studies and Research, University of Évora, Pólo da Mitra, Apartado 94, 7006-554 Évora, Portugal
| | - Cláudia S. L. Vicente
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV, I.P.), Av. da República, 2780-159 Oeiras, Portugal
- Mediterranean Institute for Agriculture, Environment and Development (MED) & Global Change and Sustainability Institute (CHANGE), Institute for Advanced Studies and Research, University of Évora, Pólo da Mitra, Apartado 94, 7006-554 Évora, Portugal
| | - Esther Menéndez
- Mediterranean Institute for Agriculture, Environment and Development (MED) & Global Change and Sustainability Institute (CHANGE), Institute for Advanced Studies and Research, University of Évora, Pólo da Mitra, Apartado 94, 7006-554 Évora, Portugal
- Department of Microbiology and Genetics, Institute for Agribiotechnology Research (CIALE), Universidad de Salamanca, 37007 Salamanca, Spain
| | - Jorge M. S. Faria
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV, I.P.), Av. da República, 2780-159 Oeiras, Portugal
- Mediterranean Institute for Agriculture, Environment and Development (MED) & Global Change and Sustainability Institute (CHANGE), Institute for Advanced Studies and Research, University of Évora, Pólo da Mitra, Apartado 94, 7006-554 Évora, Portugal
| | - Leidy Rusinque
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV, I.P.), Av. da República, 2780-159 Oeiras, Portugal
| | - Maria J. Camacho
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV, I.P.), Av. da República, 2780-159 Oeiras, Portugal
- Mediterranean Institute for Agriculture, Environment and Development (MED) & Global Change and Sustainability Institute (CHANGE), Institute for Advanced Studies and Research, University of Évora, Pólo da Mitra, Apartado 94, 7006-554 Évora, Portugal
| | - Maria L. Inácio
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV, I.P.), Av. da República, 2780-159 Oeiras, Portugal
- GREEN-IT Bioresources for Sustainability, Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa (ITQB NOVA), Av. da República, 2780-157 Oeiras, Portugal
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Diyapoglu A, Oner M, Meng M. Application Potential of Bacterial Volatile Organic Compounds in the Control of Root-Knot Nematodes. Molecules 2022; 27:4355. [PMID: 35889228 PMCID: PMC9318376 DOI: 10.3390/molecules27144355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 11/16/2022] Open
Abstract
Plant-parasitic nematodes (PPNs) constitute the most damaging group of plant pathogens. Plant infections by root-knot nematodes (RKNs) alone could cause approximately 5% of global crop loss. Conventionally, chemical-based methods are used to control PPNs at the expense of the environment and human health. Accordingly, the development of eco-friendly and safer methods has been urged to supplement or replace chemical-based methods for the control of RKNs. Using microorganisms or their metabolites as biological control agents (BCAs) is a promising approach to controlling RKNs. Among the metabolites, volatile organic compounds (VOCs) have gained increasing attention because of their potential in the control of not only RKNs but also other plant pathogens, such as insects, fungi, and bacteria. This review discusses the biology of RKNs as well as the status of various control strategies. The discovery of VOCs emitted by bacteria from various environmental sources and their application potential as BCAs in controlling RKNs are specifically addressed.
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Affiliation(s)
- Ali Diyapoglu
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 402, Taiwan;
| | - Muhammet Oner
- Department of Life Science, National Chung Hsing University, Taichung 402, Taiwan;
| | - Menghsiao Meng
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 402, Taiwan;
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