French Experiences With Dimethyl Disulfide (Dmds) as a Nematicide in Vegetable Crops

Fritsch, J.; Fouillet, T.; Charles, P. J.; Fargier-Puech, P.; Ramponi-Bur, C.; Descamps, S.; Fretay, G. Du; Myrta, A.

doi:10.17660/actahortic.2014.1044.59

Cited by 19 publications

(12 citation statements)

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“…However, acetaldehyde's nematicidal activity has yet to be reported. Similar to acetaldehyde, dimethyl disulfide can be used as an insect attractant and insecticide; it is also an effective component in many insecticides and attractants [38,39]. Dimethyl disulfide is a potential biological insecticide for the control of tomato RKN [40].…”

Section: Discussionmentioning

confidence: 99%

Identification and Characterization of Nematicidal Volatile Organic Compounds from Deep-Sea Virgibacillus dokdonensis MCCC 1A00493

et al. 2020

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Root-knot nematode diseases cause severe yield and economic losses each year in global agricultural production. Virgibacillus dokdonensis MCCC 1A00493, a deep-sea bacterium, shows a significant nematicidal activity against Meloidogyne incognita in vitro. However, information about the active substances of V. dokdonensis MCCC 1A00493 is limited. In this study, volatile organic compounds (VOCs) from V. dokdonensis MCCC 1A00493 were isolated and analyzed through solid-phase microextraction and gas chromatography-mass spectrometry. Four VOCs, namely, acetaldehyde, dimethyl disulfide, ethylbenzene, and 2-butanone, were identified, and their nematicidal activities were evaluated. The four VOCs had a variety of active modes on M. incognita juveniles. Acetaldehyde had direct contact killing, fumigation, and attraction activities; dimethyl disulfide had direct contact killing and attraction activities; ethylbenzene had an attraction activity; and 2-butanone had a repellent activity. Only acetaldehyde had a fumigant activity to inhibit egg hatching. Combining this fumigant activity against eggs and juveniles could be an effective strategy to control the different developmental stages of M. incognita. The combination of direct contact and attraction activities could also establish trapping and killing strategies against root-knot nematodes. Considering all nematicidal modes or strategies, we could use V. dokdonensis MCCC 1A00493 to set up an integrated strategy to control root-knot nematodes.

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Section: Discussionmentioning

confidence: 99%

Identification and Characterization of Nematicidal Volatile Organic Compounds from Deep-Sea Virgibacillus dokdonensis MCCC 1A00493

et al. 2020

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“…When compared with other fumigants, DMDS induces only temporal effects on the soil microbial community and on soil nitrification (Yan et al 2013;Dangi et al 2013). Regarding its fumigation performance, DMDS application in different crops provided satisfactory control of root knot nematodes (Meloidogyne incognita) and cyst nematodes (Hederodera carotae and Globodera pallida) (Curto et al 2014;Fritsch et al 2014;Sasanelli et al 2014) but it did not adequately control soil borne fungal pathogens like Pythium ultimum and Fusarium oxysporum (Gerik 2005;Cabrera et al 2014). In contrast Fritsch (2005) showed that DMDS significantly reduced the populations of Sclerotium rolfsii, Verticillium dahliae and Rhizoctonia solani.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the impact of the fumigant dimethyl disulfide on the dynamics of major fungal plant pathogens in greenhouse soils

et al. 2016

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Soil fumigants constitute a major tool for the control of soil borne fungal plant pathogens in protected crops. Dimethyl disulfide (DMDS) is a novel soil fumigant used either alone or in combination with other fumigants for the control of soil borne pests and diseases. In a commercial greenhouse for tomato production, we evaluated the impact of DMDS, comparatively to the alternative fumigant metam sodium, on the population of the dominant fungal plant pathogens in the study soil via q-PCR. Prior to soil fumigation, estimation of the fungal diversity in the studied soil via clone libraries identified Fusarium oxysporum and Rhizoctonia solani as the most abundant soil borne plant pathogens, while Cladosporium spp., known as opportunistic airborne tomato pathogens, were the most dominant fungi and based on this their dynamics upon fumigation was also studied. DMDS, at two dose rates, induced a drastic reduction in the population of F. oxysporum and R. solani, which lasted for the whole cultivation season. On the contrary, metam sodium exhibited an inhibitory effect on F. oxysporum that was alleviated at 120 d post fumigation. Both DMDS and metam sodium induced only a temporal reduction in the soil population of Cladosporium sp. which recovered by 60 days post fumigation. Our data suggest that DMDS even at the low dose rate (56.4 g m −2 ) could drastically reduce the population of the major soil borne tomato pathogens F. oxysporum and R. solani. Establishment of population thresholds as determined by q-PCR could represent a valuable tool for the estimation of the risk for disease severity and crop yield losses.

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“…DMDS with broad resource has been applied in plant disease control field. For example, DMDS shows effective activity in control root knot nematodes and cyst nematodes (Curto et al, 2014; Fritsch et al, 2014; Sasanelli et al, 2014), Recently, Papazlatani et al (2016) proves that DMDS at low dose (56.4 g m -2 ) could drastically reduce the population of tomato soil borne pathogens F. oxysporum and Rhizoctonia solani . It also shows great activity to other pathogen including Sclerotium rolfsii, Verticillium dahliae and R. solani (Fritsch, 2004).…”

Section: Discussionmentioning

confidence: 99%

Inhibitory Effect of Volatiles Emitted From Alcaligenes faecalis N1-4 on Aspergillus flavus and Aflatoxins in Storage

Gong

Kong

et al. 2019

Front. Microbiol.

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Controlling aflatoxigenic Aspergillus flavus and aflatoxins (AFs) in grains and food during storage is a great challenge to humans worldwide. Alcaligenes faecalis N1-4 isolated from tea rhizosphere soil can produce abundant antifungal volatiles, and greatly inhibited the growth of A. flavus in un-contacted face-to-face dual culture testing. Gas chromatography tandem mass spectrometry revealed that dimethyl disulfide (DMDS) and methyl isovalerate (MI) were two abundant compounds in the volatile profiles of N1-4. DMDS was found to have the highest relative abundance (69.90%, to the total peak area) in N1-4, which prevented the conidia germination and mycelial growth of A. flavus at 50 and 100 μL/L, respectively. The effective concentration for MI against A. flavus is 200 μL/L. Additionally, Real-time quantitative PCR analysis proved that the expression of 12 important genes in aflatoxin biosynthesis pathway was reduced by these volatiles, and eight genes were down regulated by 4.39 to 32.25-folds compared to control treatment with significant differences. And the A. flavus infection and AFs contamination in groundnut, maize, rice and soybean of high water activity were completely inhibited by volatiles from N1-4 in storage. Scanning electron microscope further proved that A. flavus conidia inoculated on peanuts surface were severely damaged by volatiles from N1-4. Furthermore, strain N1-4 showed broad and antifungal activity to other six important plant pathogens including Fusarium graminearum, F. equiseti, Alternaria alternata, Botrytis cinerea, Aspergillus niger , and Colletotrichum graminicola. Thus, A. faecalis N1-4 and volatile DMDS and MI may have potential to be used as biocontrol agents to control A. flavus and AFs during storage.

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French Experiences With Dimethyl Disulfide (Dmds) as a Nematicide in Vegetable Crops

Cited by 19 publications

References 0 publications

Identification and Characterization of Nematicidal Volatile Organic Compounds from Deep-Sea Virgibacillus dokdonensis MCCC 1A00493

Identification and Characterization of Nematicidal Volatile Organic Compounds from Deep-Sea Virgibacillus dokdonensis MCCC 1A00493

Assessment of the impact of the fumigant dimethyl disulfide on the dynamics of major fungal plant pathogens in greenhouse soils

Inhibitory Effect of Volatiles Emitted From Alcaligenes faecalis N1-4 on Aspergillus flavus and Aflatoxins in Storage

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