Evaluation of Seven Essential Oils as Seed Treatments against Seedborne Fungal Pathogens of Cucurbita maxima

Moumni, Marwa; Allagui, Mohamed Bechir; Mezrioui, Kaies; Amara, Hajer Slim; Romanazzi, Gianfranco

doi:10.3390/molecules26082354

Cited by 19 publications

(16 citation statements)

References 54 publications

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“…In this perspective, several works are found that, although not directly targeting targets external to seeds, validate, in a broad sense, the strategy of using essential oils in the management of plant diseases (Lozada et al;Moumni et al, 2021;Grzanka et al, 2021) and support the present study.…”

Section: Rolfsiisupporting

confidence: 84%

Seed treatment with essential oils to control Sclerotium rolfsii Sacc

Santos,

Dias,

Silva

et al. 2024

Rev. DELOS

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The sclerotia wilt in cowpea caused by the fungus Sclerotium rolfsii has in chemical control an inefficient option. Essential oils have antifungal properties, constituting an alternative to agrochemicals. Here, we evaluated the efficiency of essential oils in the control of S. rolfsii, from seed treatment, as well as their effect on seed germination. Based on the diameter of the colonies of the fungus S. rolfssi submitted to a concentration of 8.0 ml/kg of seed-1, the oils of L. sidoides, L. origanoides and C. zehntneri reduced mycelial growth by 61.5, 67.2 and 40% respectively. The reduction in the percentage of germination occurred at the highest concentrations. The fungus was sensitive to all evaluated oils, being more sensitive to Lippia oils. Seed treatment with essential oils is effective at a concentration of 4.0 ml/kg-1.

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Section: Rolfsiisupporting

confidence: 84%

Seed treatment with essential oils to control Sclerotium rolfsii Sacc

Santos,

Dias,

Silva

et al. 2024

Rev. DELOS

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“…Chen et al (2014) demonstrated the effectiveness of a citronella (Cymbopogon nardus) essential oil on A. alternate in in vitro and in vivo assays. Moumni et al (2021) tested in vivo seven essential oils for disinfection of squash seeds (Cucurbita maxima) that had been naturally contaminated with Stagonosporopsis cucurbitacearum, Alternaria alternata, Fusarium fujikuro, Fusarium solani, Paramyrothecium roridum, Albifimbria verrucaria, Curvularia spicifera, and Rhizopus stolonifer. The seeds were treated with essential oils produced from Cymbopogon citratus, Lavandula dentata, Lavandula hybrida, Melaleuca alternifolia, Laurus nobilis, and Origanum majorana (#1 and #2).…”

Section: Use Of Natural Compounds -Plant Extracts and Oilsmentioning

confidence: 99%

Seed Health Treatments in Organic Seed Production

GOLIJAN-PANTOVIC¹,

SECANSKI²,

GORDANIC³

2022

AgricultForest

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The basic principles for the development of organic agriculture has been prescribed by the International Federation of Organic Agriculture Movements -IFOAM and the European Union (Commission Regulation No 209/91), on whose standards EU regulations are founded. The field of organic production at the international level and issues of seeds and planting material are regulated by the IFOAM Basic Standards 2002, which stipulates that seed and planting material used in organic agriculture has to be produced in line with the regulations applicable to organic crops. Unlike the conventional seed production, in organic seed production, there is a higher risk of contamination with pathogens, i.e. seedborne diseases. The aim of this study was to point out the existing methods of seed treatments in the organic production system in order to obtain healthy seeds. Seed-borne pathogens, including bacteria, fungi, viruses and viroids, are responsible for disease recurrence in subsequent cycles of seed multiplication and spread of diseases in new geographic regions. According to various authors, there are several classifications of treatments including physical treatments, application of natural compounds, such as plant extracts and oils, use of inorganic natural products and biological control (use antagonistic microorganisms). In order to overcome various pathogens different biocontrol strategies should be developed. Microorganisms can be used in diverse crop protection practices, i.e. several seed treatments can facilitate high levels of both disease control and production yield.

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“…The potential use in agriculture is further encouraged by their low or no toxicity against vertebrates, easy extractability and eco-compatibility, biodegradability ( Zygadlo and Grosso, 1995 ) and the lack of persistence in soil and water ( Misra and Pavlostathis, 1997 ; Isman, 2000 ; Isman and Machial, 2006 ). Indeed, recent studies ( Riccioni and Orzali, 2011 ; Sharma et al., 2017 ) have shown that essential oils can reduce growth of some pathogenic fungi, and their potential applications in seed treatment are still being studied and developed ( Moumni et al., 2021 ; Kesraoui et al., 2022 ). To our knowledge, no data are reported in literature on wheat seed treatment with clove essential oil against common bunt under field conditions.…”

Section: Introductionmentioning

confidence: 99%

Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt

Valente,

Orzali,

Manetti

et al. 2023

Front. Plant Sci.

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Common bunt of durum wheat (DW), Triticum turgidum L. ssp. durum (Desf.) Husn., is caused by the two closely related fungal species belonging to Tilletia genus (Tilletiales, Exobasidiomycetes, Ustilaginomycotina): Tilletia laevis Kühn (syn. T. foetida (Wallr.) Liro.) and T. caries (DC) Tul. (syn. T. tritici (Bjerk.) G. Winter). This is one of the most devastating diseases in wheat growing areas worldwide, causing considerable yield loss and reduction of wheat grains and flour quality. For these reasons, a fast, specific, sensitive, and cost-effective method for an early diagnosis of common bunt in wheat seedlings is urgent. Several molecular and serological methods were developed for diagnosis of common bunt in wheat seedlings but at late phenological stages (inflorescence) or based on conventional PCR amplification, with low sensitivity. In this study, a TaqMan Real Time PCR-based assay was developed for rapid diagnosis and quantification of T. laevis in young wheat seedlings, before tillering stage. This method, along with phenotypic analysis, was used to study conditions favoring pathogen infection and to evaluate the effectiveness of clove oil-based seed dressing in controlling the disease. The overall results showed that: i) the Real Time PCR assay was able to quantify T. laevis in young wheat seedlings after seed dressing by clove oil in different formulations, greatly reducing times of analysis. It showed high sensitivity, detecting up to 10 fg of pathogen DNA, specificity and robustness, allowing to directly analyze crude plant extracts and representing a useful tool to speed up the tests of genetic breeding for disease resistance; ii) temperature was a critical point for disease development when using wheat seeds contaminated by T. laevis spores; iii) at least one of the clove oil-based formulations tested was able to efficiently control wheat common bunt, suggesting that clove oil dressing could represent a promising tool for managing the disease, especially in sustainable farming.

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Evaluation of Seven Essential Oils as Seed Treatments against Seedborne Fungal Pathogens of Cucurbita maxima

Cited by 19 publications

References 54 publications

Seed treatment with essential oils to control Sclerotium rolfsii Sacc

Seed treatment with essential oils to control Sclerotium rolfsii Sacc

Seed Health Treatments in Organic Seed Production

Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt

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