Antifungal Activity of Five Plant Essential Oils as Fumigant Against Postharvest and Soilborne Plant Pathogenic Fungi

Certain natural products extracted from different parts of medicinal and aromatic plants were examined for their antifungal activity against three plant pathogenic fungi, Fusarium oxysporum, Rhizoctonia solani, and Alternaria solani, and insecticidal activity against mosquito larvae (Culex pipiens). Acetone extract of Tectona grandis showed the highest antifungal activity against R. solani and A. solani with EC50 values of 118 and 294 μg/mL, respectively. The highest larvicidal activity was displayed by the essential oils of Ocimum basilicum and Eucalyptus gomphocephala with LC50 value of 22, and 30 mg/L, respectively. By gas chromatography–mass spectrometry (GC/MS) analysis 3-allylguaiacol (65.8%) and eugenol acetate (46.6%) were the main compounds in Syzygium aromaticum methanolic extract and essential oil, respectively. The main compound in T. grandis acetone extract was cyclohexylpentyl oxalate (8.7%); its water extract contained (E)-4,4-dimethyl-2-pentene (51.1%); E. gomphocephala branch oil contained p-cymene (28.8%); Euphorbia paralias leaf extract contained 1βH-romneine (26.3%); the seed extract contained α-linolenic acid, TMS (15.2%); Punica granatum extract contained furfural (32.1%); and O. basilicum essential oil contained estragole (65.9%). Thus, extracts from the tested plants can be used as natural biofungicides to manage diseases caused by F. oxysporum, R. solani, and A. solani. Additionally, these extracts show potential larvicide activities against mosquito larvae.

Download Full-text

Plant Essential Oils for Controlling Plant Pathogenic Fungi

Volatiles and Food Security ◽

10.1007/978-981-10-5553-9_9 ◽

2017 ◽

pp. 171-198

Author(s):

Riad Sedki Riad El-Mohamedy

Keyword(s):

Essential Oils ◽

Pathogenic Fungi ◽

Plant Pathogenic Fungi ◽

Plant Essential Oils

Download Full-text

Essential Oil Composition and Antifungal Activity of Aerial Parts of Ballota nigra ssp foetida Collected at Flowering and Fruiting Times

Natural Product Communications ◽

10.1177/1934578x1400900733 ◽

2014 ◽

Vol 9 (7) ◽

pp. 1934578X1400900 ◽

Cited By ~ 1

Author(s):

Daniele Fraternale ◽

Donata Ricci

Keyword(s):

Antifungal Activity ◽

Essential Oils ◽

Pathogenic Fungi ◽

Dilution Method ◽

Agar Dilution Method ◽

Plant Pathogenic Fungi ◽

Oil Composition ◽

Aerial Parts ◽

In Vitro Antifungal Activity

The present study reports the results of gas chromatographic-mass spectrometric (GC/MS) analyses of the essential oils from the aerial parts of Ballota nigra L. ssp foetida (Lamiaceae) collected at flowering and fruiting times, as well as their in vitro antifungal activity against nine plant pathogenic fungi. Moreover, the essential oils were evaluated for their antifungal activity using the agar dilution method, and also MICs (minimum inhibitory concentrations) and MFCs (minimum fungicidal concentrations) were determined. The major compounds identified in the flowering and fruiting aerial parts oils respectively were β-caryophyllene (22.6% and 21.8%), caryophyllene oxide (18.0% and 20.5%) and germacrene-D (16.5 and 13.1%). The oils showed in vitro antifungal activity against some species of Fusarium, Botrytis cinerea, and Alternaria solani. Our study indicates that the oil of B. nigra ssp foetida could be used as a control agent for plant pathogenic fungi in natural formulations.

Download Full-text

Antifungal activity of peppermint and sweet basil essential oils and their major aroma constituents on some plant pathogenic fungi from the vapor phase

Nahrung/Food ◽

10.1002/food.200390021 ◽

2003 ◽

Vol 47 (2) ◽

pp. 117-121 ◽

Cited By ~ 99

Author(s):

Amr E. Edris ◽

Eman S. Farrag

Keyword(s):

Antifungal Activity ◽

Essential Oils ◽

Vapor Phase ◽

Pathogenic Fungi ◽

Plant Pathogenic Fungi ◽

Sweet Basil

Download Full-text

Chemical Composition and Antimicrobial Properties of Mentha × piperita cv. ‘Kristinka’ Essential Oil

Plants ◽

10.3390/plants10081567 ◽

2021 ◽

Vol 10 (8) ◽

pp. 1567

Author(s):

Ippolito Camele ◽

Daniela Gruľová ◽

Hazem S. Elshafie

Keyword(s):

Antifungal Activity ◽

Xanthomonas Campestris ◽

Fruits And Vegetables ◽

Antimicrobial Properties ◽

Pathogenic Fungi ◽

Cell Membrane Permeability ◽

Penicillium Expansum ◽

Mentha Piperita ◽

Plant Essential Oils ◽

Main Components

Several economically important crops, fruits and vegetables are susceptible to infection by pathogenic fungi and/or bacteria postharvest or in field. Recently, plant essential oils (EOs) extracted from different medicinal and officinal plants have had promising antimicrobial effects against phytopathogens. In the present study, the potential microbicide activity of Mentha × piperita cv. ‘Kristinka’ (peppermint) EO and its main constituents have been evaluated against some common phytopathogens. In addition, the cell membrane permeability of the tested fungi and the minimum fungicidal concentrations were measured. The antifungal activity was tested against the following postharvest fungi: Botrytis cinerea, Monilinia fructicola, Penicillium expansum and Aspergillus niger, whereas antibacterial activity was evaluated against Clavibacter michiganensis, Xanthomonas campestris, Pseudomonas savastanoi and P. syringae pv. phaseolicola. The chemical analysis has been carried out using GC-MS and the main components were identified as menthol (70.08%) and menthone (14.49%) followed by limonene (4.32%), menthyl acetate (3.76%) and β-caryophyllene (2.96%). The results show that the tested EO has promising antifungal activity against all tested fungi, whereas they demonstrated only a moderate antibacterial effect against some of the tested bacteria.

Download Full-text