Fumigant Antifungal Activity of<i>Corymbia citriodora</i>and<i>Cymbopogon nardus</i>Essential Oils and Citronellal against Three Fungal Species

Aguiar, Raimundo Wagner de Souza; Ootani, Márcio Akio; Ascêncio, Sérgio Donizeti; Ferreira, Talita Pereira de Souza; Santos, Manoel Mota dos; Santos, Gil Rodrigues dos

doi:10.1155/2014/492138

Cited by 64 publications

(38 citation statements)

References 30 publications

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“…The germination of P. digitatum spores was also visibly inhibited by citronellal at concentrations higher than 0.20 lL/mL. This result was in agreement with previous reports describing the antifungal activity of citronellal (Nakahara et al 2013;Aguiar et al 2014). Interestingly, citronellal at a concentration of 0.050 lL/mL could stimulate the germination of P. digitatum spores.…”

Section: Discussionsupporting

confidence: 92%

“…In recent studies, citronellal has been observed to be one of the principal components in some plant essential oils and showed good antifungal activity against the pathogen that cause severe destruction in apple, tomato and banana (Aguiar et al 2014;Arancibia et al 2014). Thus, citronellal might be a potential antifungal substance in controlling postharvest disease of citrus fruit.…”

Section: Introductionmentioning

confidence: 99%

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Plasma membrane damage contributes to antifungal activity of citronellal against Penicillium digitatum

Ouyang

Tao

2016

J Food Sci Technol

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The antifungal activity of citronellal, a typical terpenoid of plant essential oils, against Penicllium digitatum and the possible action mode involved were investigated. Results showed that the mycelial growth and spores' germination of P. digitatum were inhibited by citronellal in a dose-dependent manner. The minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) were determined to be 1.60 lL/mL and 3.20 lL/mL, respectively. It was found that the plasma membrane of citronellal-treated P. digitatum spores was damaged, as confirmed by the propidium iodide stain results, as well as a higher extracellular conductivity and release of cell constituents in citronellal-treated samples than those of control samples. Moreover, in vivo test results demonstrated that wax ? citronellal (WC; 10 9 MFC) treatment effectively reduced the incidence of green mold after 5 days of storage at 25 ± 2°C. These findings suggested that the plasma damage mechanism contributed to the antifungal activity of citronellal against P. digitatum. In addition, citronellal was suggested to be a potential alternative to fungicidal agents in controlling green mold of citrus fruit.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Plasma membrane damage contributes to antifungal activity of citronellal against Penicillium digitatum

Ouyang

Tao

2016

J Food Sci Technol

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“…Some fungitoxic substances were already identified in mentrasto Esper et al, 2014), rue (Domingues et al, 2009;Azizi & Karouei, 2012), ginger (Sharma & Tiwari, 2013), false saffron (Ferreira et al, 2013;Parveen et al, 2013), citronella (Simic et al, 2008), rosemary (Ozcan & Chalchat, 2008), neem (Coventry & Allan, 2001) and eucalyptus citriodora (Aguiar et al, 2014). It is likely that fungicidal substances of wide spectrum present in the extracts and essential oils of these plants are involved in the inhibition of S. cepivora, such as precoceno in mentrasto , citronellal in citronella and eucalyptus citriodora (Simic et al, 2008;Tomazi et al, 2014), 1.8-cineole (eucalyptol) in ginger and rosemary (Ozcan & Chalchat, 2008;Sharma & Tiwari, 2013) and azadirachtin in neem (Coventry & Allan, 2001).…”

Section: Discussionmentioning

confidence: 99%

Inhibition of the mycelial growth and germination of Stromatinia cepivora by plant extracts and essential oils

et al. 2018

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Stromatinia cepivora is one of the major pathogens of Allium species worldwide. Assuming that substances produced by plants may be used in the management of this pathogen, the effect of plant extracts and essential oils on the mycelial growth and germination of S. cepivora was assessed in this study. The fungus was grown on PDA medium with aqueous and ethanolic extracts (20 %, m:v) of mentrasto, rue, ginger, false saffron, garlic and citronella at the concentrations of 1 or 10 mL L -1 and the essential oils of citronella, rosemary, neem and Corymbia citriodora at 100, 200, 400, 800 or 1,200 µL L -1 . None of the plant extracts reduced the germination of the sclerotia. All aqueous extracts at 10,000 µL L -1 reduced the growth of the fungus from 28.0% to 53.5%. At the 1,000 µL L -1 , the ethanolic extracts of ginger, citronella, rue and false saffron reduced the mycelial growth of the pathogen up to 45.1 %, especially the extract of ginger. The essential oils of all the plants suppressed the mycelial growth of S. cepivora at 800 and 1,200 µL L -1 , especially the citronella and rosemary oils at 1,200 µL L -1 , which caused 100% of inhibition. 5 % of sclerotia germinated in PDA containing the oils at 1,200 µL L -1 , regardless the plants. The extracts of mentrasto, rue, ginger, false saffron and citronella and especially the essential oils of citronella, rosemary, neem and C. citriodora at 1,200 µL L -1 have substances that inhibit the growth of S. cepivora.Additional keywords: Allium spp.; alternative control; white rot. ResumoStromatinia cepivora é um dos principais patógenos de espécies de Allium em todo o mundo. Partindo do pressuposto de que substâncias produzidas por plantas podem ser usadas no manejo desse patógeno, o efeito de extratos vegetais e de óleos essenciais sobre o crescimento micelial e a germinação de S. cepivora foi avaliado neste estudo. O fungo foi cultivado em BDA com extratos aquosos e etanólicos (20%, m: v) de mentrasto, arruda, gengibre, falso-açafrão, alho e citronela, nas concentrações de 1 ou 10 mL L -1 e os óleos essenciais de citronela, alecrim, nim e eucalipto citriodora, a 100; 200; 400; 800 ou 1.200 µL L -1 . Nenhum dos extratos de plantas reduziu a germinação dos escleródios. Todos os extratos aquosos a 10.000 µL L -1 reduziram o crescimento do fungo, variando de 28,0% a 53,5%. Na concentração de 10.000 µL L -1 , os extratos etanólico de gengibre, citronela, arruda e falso-açafrão reduziram o crescimento micelial do patógeno até 45,1%, especialmente o extrato de gengibre. Os óleos essenciais de todas as plantas suprimiram o crescimento micelial de S. cepivora a 800 e 1.200 µL L -1 , especialmente a citronela e os óleos de alecrim, a 1.200 µL L -1 , que causaram 100% de inibição, 5% dos escleródios germinados em BDA contendo os óleos na concentração de 1.200 µL L -1 , independentemente da planta. Os extratos de mentrasto, arruda, gengibre, açafrão e falsa-citronela e, especialmente, os óleos essenciais de citronela, alecrim, nim e eucalipto citriodora, em 1200 µL L -1 , têm...

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“…Both the poisoned food and disc diffusion bioassays revealed that the EO of E. camaldulensis inhibited the growth of the test fungi in a dose-dependent manner. There are many reports in literature of concentration-dependent antifungal activity of essential oil whereby the colony diameters increase with decrease in the concentration of EO (poisoned food bioassay) or the diameters of the inhibition zone increase with increase in the concentration of the essential oil (disk diffusion assay) [35, 36]. Some exceptional instances were however observed in the current study such as in the case of F. solani and F. proliferatum where undiluted EO produced smaller inhibition zones in comparison to diluted essential oil.…”

Section: Discussionmentioning

confidence: 99%

Antifungal Activity of Essential Oil ofEucalyptus camaldulensisDehnh. against SelectedFusariumspp.

Gakuubi

Maina

Wagacha

2017

International Journal of Microbiology

107

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The objective of this study was to evaluate the antifungal activity of essential oil (EO) of Eucalyptus camaldulensis Dehnh. against five Fusarium spp. commonly associated with maize. The essential oil had been extracted by steam distillation in a modified Clevenger-type apparatus from leaves of E. camaldulensis and their chemical composition characterized by gas chromatography mass spectrometry. Poisoned food technique was used to determine the percentage inhibition of mycelial growth, minimum inhibitory concentration, and minimum fungicidal concentration of the EO on the test pathogens. Antifungal activity of different concentrations of the EO was evaluated using disc diffusion method. The most abundant compounds identified in the EO were 1,8-cineole (16.2%), α-pinene (15.6%), α-phellandrene (10.0%), and p-cymene (8.1%). The EO produced complete mycelial growth inhibition in all the test pathogens at a concentration of 7-8 μL/mL after five days of incubation. The minimum inhibitory concentration and minimum fungicidal concentration of the EO on the test fungi were in the range of 7-8 μL/mL and 8–10 μL/mL, respectively. These findings confirm the fungicidal properties of E. camaldulensis essential oils and their potential use in the management of economically important Fusarium spp. and as possible alternatives to synthetic fungicides.

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Fumigant Antifungal Activity ofCorymbia citriodoraandCymbopogon nardusEssential Oils and Citronellal against Three Fungal Species

Cited by 64 publications

References 30 publications

Plasma membrane damage contributes to antifungal activity of citronellal against Penicillium digitatum

Plasma membrane damage contributes to antifungal activity of citronellal against Penicillium digitatum

Inhibition of the mycelial growth and germination of Stromatinia cepivora by plant extracts and essential oils

Antifungal Activity of Essential Oil ofEucalyptus camaldulensisDehnh. against SelectedFusariumspp.

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