Nematicidal Effects of Volatile Organic Compounds from Microorganisms and Plants on Plant-Parasitic Nematodes

Deng, Xia; Wang, Xin; Li, Guohong

doi:10.3390/microorganisms10061201

Cited by 24 publications

(11 citation statements)

References 84 publications

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“…Thymol, carvacrol, linalool, p-cimen, geraniol, borneol monoterpenes are found in the essential oil components of most of the thyme species (Paşa 2019). Thymol is a nematicidal compound that can be found in many plants such as thyme and is highly toxic to root-knot nematodes (Deng et al 2022). Carvacrol and thymol may act on TA receptors and interrupt a signal cascade of receptors in nematode cells (Lei et al 2010).…”

Section: Resultsmentioning

confidence: 99%

Management of disease complex of Meloidogyne incognita and Fusarium oxysporum f.sp. radicis lycopersici on tomato using some essential oils

Özdemir

2022

Bitki Koruma Bülteni

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The effects of commercial thyme, sage, garlic, sesame, rosemary, lemon and mustard essential oils (Botalife Natural and Aromatic Products Ltd. Şti, Turkey) on disease severity were investigated in simultaneous inoculation of Meloidogyne incognita (Kofoid and White, 1919) Chitwood, 1949 and Fusarium oxysporum f.sp.radicis lycopersici (Jarvis & Shoemaker) on tomato. Nematicide (Velum®, Fluopyram) and fungicide (Cebir®, Fludioxonil + Metalaxyl) were used as positive controls. Negative control was only plants with nematode and fungus inoculation. The study was set up in a randomized plot design with 5 replications for each essential oil. In simultaneous inoculations, 1000 M. incognita second juvenile larvaes/1ml and 3X106 spore/ml FORL were used for each seedling. The essential oil applications were applied to the soil at a dose of 1000 ppm for each pot, one day after the nematode and fungus inoculation. The study was terminated after 60 days, and the assestment was based on gall, egg mass and disease severity. Fungal growth and nematode development on roots was found lower in all tested oils applications than negative control but fungisidal and nematicidal activity varied. Thyme and garlic essential oils had the highest control effect on nematode and fungus with 55.20% in simultaneous inoculation and this effect was higher than only nematicide (38.84%) and only fungicide (33.20%) applications. Sage (38.84%), rosemary (33.28%) and mustard (38.92%) essential oils were found to suppress disease severity higher than sesame (22.16%) and lemon (22.16%). It has been determined that thyme and garlic essential oils are good alternatives to manage root knot nematode and FORL disease complexes.

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Section: Resultsmentioning

confidence: 99%

Management of disease complex of Meloidogyne incognita and Fusarium oxysporum f.sp. radicis lycopersici on tomato using some essential oils

Özdemir

2022

Bitki Koruma Bülteni

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“…For example, 2-octanone isolated from P. putida and 1-octanol from Nasturtium officinale both exhibit nematicidal properties at low concentrations, effectively killing M. incognita. [51][52][53] In pot experiments, the application of 2I-3ME, 2-DO, and 2-TRE resulted in a significant reduction in the number of root galls and egg masses in cucumber roots. However, their efficacy was relatively low compared with the in vitro experiment.…”

Section: Discussionmentioning

confidence: 99%

“…54 All three VOCs showed strong NA at low concentrations in the in vitro experiment, however, their effectiveness diminished when applied under greenhouse conditions. 53 Considering that VOCs are small molecules with high vapor pressure and can rapidly diffuse in air, it is important to investigate how these nematicidal VOCs can persist in the soil for extended periods.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, various natural by‐products of alcohols and ketones from plants and microoganisms have been found to possess NA against plant parasitic nematodes. For example, 2‐octanone isolated from P. putida and 1‐octanol from Nasturtium officinale both exhibit nematicidal properties at low concentrations, effectively killing M. incognita 51–53 …”

Section: Discussionmentioning

confidence: 99%

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Volatile organic compounds produced by Paenibacillus polymyxaJ2‐4 exhibit toxic activity against Meloidogyne incognita

Song,

Dai,

Gao

et al. 2023

Pest Management Science

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BACKGROUNDRoot knot nematodes cause great damage to crops worldwide. Due to the negative effects of the application of fumigant and old chemical nematicides, biological nematicides have drawn increasing attention in recent years. Here we tested the fumigant activity of the volatile organic compounds (VOCs) blends emitted from Paenibacillus polymyxa and pure commercial VOCs against M. incognita.RESULTSIn this study, we investigated whether P. polymyxa strain J2‐4 could produce VOCs that exhibit nematicidal activity. In vitro assays indicated that J2‐4 VOCs were highly toxic to second stage juveniles (J2s) and could inhibit egg hatching. Three‐layered pot experiments showed that the number of nematodes that penetrating in cucumber roots was reduced by 69.27% after the application of J2‐4 VOCs under greenhouse conditions. We identified 14 volatiles using solid‐phase micro‐extraction gas chromatography–mass spectrometry. The efficacy of six commercially available VOCs, namely 2‐isobutyl‐3‐methylpyrazine, 2,4‐dimethoxybenzaldoxime, 2‐dodecanone, 2‐tridecanol, 2‐tridecanone, and 2‐tetradecanol, against M. incognita were examined. Except for 2,4‐dimethoxybenzaldoxime, the remaining five VOCs showed strong direct‐contact nematicidal activity against J2s of M. incognita, and only 2‐isobutyl‐3‐methylpyrazine showed strong fumigant activity against J2s of M. incognita. In pot experiments, 2‐isobutyl‐3‐methylpyrazine and 2‐dodecanone reduced the number of root galls by about 70%, and 2‐tridecanone reduced the number of root galls and egg masses by about 63% compared with controls.CONCLUSIONPaenibacillus polymyxa strain J2‐4 exhibited high fumigant activity against M. incognita. Our results provide evidence for the use of J2‐4 and its VOCs as biocontrol agents in the management of root‐knot nematodes. © 2023 Society of Chemical Industry.

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“…Several bacterial species have been shown to produce an array of nematicidal VOCs which are toxic to RKN in vitro and in a crop [ 31 , 32 ]. Since the profile varies with the bacterial species suggest that each species evolved nematicidal compounds independently [ 43 , 44 , 45 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Fungal Volatile Organic Compounds for Control the Plant Parasitic Nematode Meloidogyne incognita

Veronico

Sasanelli

Troccoli

et al. 2023

Plants

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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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Nematicidal Effects of Volatile Organic Compounds from Microorganisms and Plants on Plant-Parasitic Nematodes

Cited by 24 publications

References 84 publications

Management of disease complex of Meloidogyne incognita and Fusarium oxysporum f.sp. radicis lycopersici on tomato using some essential oils

Management of disease complex of Meloidogyne incognita and Fusarium oxysporum f.sp. radicis lycopersici on tomato using some essential oils

Volatile organic compounds produced by Paenibacillus polymyxaJ2‐4 exhibit toxic activity against Meloidogyne incognita

Evaluation of Fungal Volatile Organic Compounds for Control the Plant Parasitic Nematode Meloidogyne incognita

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