Soil fumigation with mustard essential oil to control bacterial wilt in tomato

Pontes, Nadson de Carvalho; Yamada, Jaqueline Kiyomi; Fujinawa, Miriam Fumiko; Dhingra, O. D.; Oliveira, José Rogério de

doi:10.1007/s10658-019-01777-0

Cited by 8 publications

(6 citation statements)

References 25 publications

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“…BjSM displayed the greatest inhibitory effect, followed by BcSM and BnSM (Figs 1 and S2). A previous report has demonstrated the potential of B. juncea essential oil for reducing tomato wilt disease, and verified the effect of allyl ITC on R. solanacearum mortality 41 . However, little is known about the abilities of BnSM and BcSM to inhibit R. solanacearum .…”

Section: Discussionmentioning

confidence: 96%

“…Many previous studies have reported that Brassica plant residues and extracts can inhibit R. solanacearum growth 26,41,43 . However, few studies have focused on the effects of BSMs on the pathogen virulence.…”

Section: Discussionmentioning

confidence: 99%

“…A previous report has demonstrated the potential of B. juncea essential oil for reducing tomato wilt disease, and verified the effect of allyl ITC on R. solanacearum mortality. 41 However, little is known about the abilities of BnSM and BcSM to inhibit R. solanacearum. The present study showed that BnSM and BcSM could significantly suppress R. solanacearum growth.…”

Section: Discussionmentioning

confidence: 99%

“…43 Many previous studies have reported that Brassica plant residues and extracts can inhibit R. solanacearum growth. 26,41,43 However, few studies have focused on the effects of BSMs on the pathogen virulence. Our results exhibited that in addition to the growth, the R. solanacearum virulence was also weakened by BSMs.…”

Section: Discussionmentioning

confidence: 99%

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The inhibitory effects of different types of Brassica seed meals on the virulence of Ralstonia solanacearum

Peng

Liu

Shen

et al. 2021

Pest Management Science

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BACKGROUND Understanding the specific inhibitory effects of different Brassica seed meals (BSMs) on soilborne pathogens is important for their application as biocontrol agents for controlling plant disease. In this study, the seed meals of Brassica napus L. (BnSM), Brassica campestris L. (BcSM), and Brassica juncea L. (BjSM), and the combined seed meal of BcSM and BjSM (CSM, 1:1), were selected for investigation. The inhibitory effects of these seed meals on the plant pathogen Ralstonia solanacearum (Smith) and tomato bacterial wilt, were assessed and compared. RESULTS All the BSMs significantly inhibited the growth of R. solanacearum in vitro. Furthermore, the BSMs could effectively suppress R. solanacearum virulence traits, including motility, exopolysaccharide production, dehydrogenase activity, virulence‐related gene expression, and colonization in the soil. Among them, BjSM showed the best inhibiting effects, and CSM displayed synergic toxicity against R. solanacearum. In addition, the predominant antibacterial compounds in BcSM and BjSM were identified as the volatile compounds, 3‐butenyl isothiocyanate and allyl isothiocyanate, respectively. Finally, pot experiment verified that the control effects of BjSM and CSM on tomato wilt reached more than 90%. CONCLUSION This is the first study to report on the ability of different kinds of BSMs to suppress the virulence of R. solanacearum and biocontrol efficiencies against bacterial wilt in tomato plants. Furtherly, the main antibacterial compounds in the BSMs were identified. The results demonstrated that CSM may possess potential for controlling bacterial wilt caused by R. solanacearum. The results provide a fresh perspective for comprehending the mechanism underlying BSM suppression of pathogens and plant disease.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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The inhibitory effects of different types of Brassica seed meals on the virulence of Ralstonia solanacearum

Peng

Liu

Shen

et al. 2021

Pest Management Science

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“…The process of glucosinolate hydrolysis is a function of several factors, such as the state of incorporated plant parts, soil type, moisture content, and environmental factors (Price et al, 2005;Gimsing and Kirkegaard, 2009;Wang and Mazzola, 2019). Thus, MEO/AITC has been often reported to efficiently control many soilborne pests and pathogens like Ralstonia solanacearum, Rhizoctonia solani, Sclerotium rolfsii, F. oxysporum, Phytophthora infestans, Pythium aphanidermatum, and M. incognita Harvey et al, 2002;Dhingra et al, 2004;Aissani et al, 2013;Ren et al, 2018;de Carvalho Pontes et al, 2019, Yu et al, 2019.…”

Section: Discussionmentioning

confidence: 99%

Deciphering the Behavioral Response of Meloidogyne incognita and Fusarium oxysporum Toward Mustard Essential Oil

et al. 2021

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Environmental concerns related to synthetic pesticides and the emphasis on the adoption of an integrated pest management concept as a cardinal principle have strengthened the focus of global research and development on botanical pesticides. A scientific understanding of the mode of action of biomolecules over a range of pests is key to the successful development of biopesticides. The present investigation focuses on the in silico protein-ligand interactions of allyl isothiocyanate (AITC), a major constituent of black mustard (Brassica nigra) essential oil (MEO) against two pests, namely, Meloidogyne incognita (Mi) and Fusarium oxysporum f. sp. lycopersici (Fol), that cause severe yield losses in agricultural crops, especially in vegetables. The in vitro bioassay results of MEO against Mi exhibited an exposure time dependent on the lethal concentration causing 50% mortality (LC50) values of 47.7, 30.3, and 20.4 μg ml−1 at 24, 48, and 72 h of exposure, respectively. The study revealed short-term nematostatic activity at lower concentrations, with nematicidal activity at higher concentrations upon prolonged exposure. Black mustard essential oil displayed excellent in vitro Fol mycelial growth inhibition, with an effective concentration to cause 50% inhibition (EC50) value of 6.42 μg ml−1. In order to decipher the mechanism of action of MEO, its major component, AITC (87.6%), which was identified by gas chromatography–mass spectrometry (GC-MS), was subjected to in silico docking and simulation studies against seven and eight putative target proteins of Mi and Fol, respectively. Allyl isothiocyanate exhibited the highest binding affinity with the binding sites of acetyl cholinesterase (AChE), followed by odorant response gene-1 (ODR1) and neuropeptide G-protein coupled receptor (nGPCR) in Mi, suggesting the possible suppression of neurotransmission and chemosensing functions. Among the target proteins of Fol, AITC was the most effective protein in blocking chitin synthase (CS), followed by 2,3-dihydroxy benzoic acid decarboxylase (6m53) and trypsinase (1try), thus inferring these as the principal molecular targets of fungal growth. Taken together, the study establishes the potential of MEO as a novel biopesticide lead, which will be utilized further to manage the Mi–Fol disease complex.

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Identification and application of Streptomyces microflavus G33 in compost to suppress tomato bacterial wilt disease

Shen

Lei

et al. 2021

Applied Soil Ecology

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Soil fumigation with mustard essential oil to control bacterial wilt in tomato

Cited by 8 publications

References 25 publications

The inhibitory effects of different types of Brassica seed meals on the virulence of Ralstonia solanacearum

The inhibitory effects of different types of Brassica seed meals on the virulence of Ralstonia solanacearum

Deciphering the Behavioral Response of Meloidogyne incognita and Fusarium oxysporum Toward Mustard Essential Oil

Identification and application of Streptomyces microflavus G33 in compost to suppress tomato bacterial wilt disease

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