The effectiveness of plant essential oils on the growth of Botrytis cinerea, Fusarium sp. and Clavibacter michiganensis subsp. michiganensis

Daferera, Dimitra; Ziogas, Basil N.; Polissiou, Moschos G.

doi:10.1016/s0261-2194(02)00095-9

Cited by 577 publications

(403 citation statements)

References 13 publications

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“…Antifungal tests in in vitro conditions of several EOs and their compounds (Daferera et al, 2003;Linde et al, 2010;Soylu et al, 2010;Marei et al, 2012;Kouassi et al, in press) showed that they can (i) be active against some types of phytopathogenic fungi and not active against others, (ii) be active against the same pathogen, but not at the same concentration, and (iii) exhibit antifungal activity against a certain pathogen in one fruit type, but not against the same pathogen in another fruit type, or at least not at the same concentration. Furthermore, complexity of EOs and their compounds make the study of their mechanisms of action difficult.…”

Section: Introductionmentioning

confidence: 99%

The control of postharvest blue and green molds of citrus in relation with essential oil–wax formulations, adherence and viscosity

Kouassi

Bajji

Jijakli

2012

Postharvest Biology and Technology

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. a b s t r a c tThe use of wax coatings enriched with antifungals has significantly contributed to quality maintaining of harvested citrus fruit. On the other hand, interest in essential oils (EOs) as an alternative to synthetic fungicides has recently gained momentum. In this study, Cinnamomum zeylanicum EO was incorporated into a variety of commercial citrus waxes (shellac, carnauba, paraffin and polyethylene). The biological activity of these formulations against green and blue rots as well as their viscosity and adherence to the orange fruit surface were evaluated. Excellent disease control was achieved with C. zeylanicum EO incorporated in shellac and/or carnauba wax compared to other EO-wax formulations. Disease control by EO-waxes seems to depend not only on the volume that remains on the fruit skin, but also, probably on the retention of EO components on the fruit. Other factors such as formulation solubility, permeability to gases, and compatibility between EO compounds and those of waxes may also be involved in the improvement of EO efficacy. The present study may therefore allow a careful selection of appropriate waxes for the elaboration of effective EO-wax formulations.

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Section: Introductionmentioning

confidence: 99%

The control of postharvest blue and green molds of citrus in relation with essential oil–wax formulations, adherence and viscosity

Kouassi

Bajji

Jijakli

2012

Postharvest Biology and Technology

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“…Essential oils are involved in many important actions related to the plant survival, playing prominent role in its defense against microorganisms (CechinelFilho et al, 1998;Siqui et al, 2000). The use of essential oils as antimicrobial agents presents two principal characteristics: i) their natural origin meaning more safety for users and environment; ii)there is low risk of rising microbial resistance to their action because essential oils are mixtures of several compounds that, apparently, presents different antimicrobial action making more diffi cult the microbial adaptability (Daferera et al, 2003). Table 3 shows the inhibitory activity of L. sidoides essential oil on S. aureus strains isolated from clinical material.…”

Section: Resultsmentioning

confidence: 99%

Effectiveness of Lippia sidoides Cham. (Verbenaceae) essential oil in inhibiting the growth of Staphylococcus aureus strains isolated from clinical material

Oliveira¹,

Lima²,

Júnior³

et al. 2006

Rev. bras. farmacogn.

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ABSTRACT:Staphylococcus aureus is a classical pathogen microorganism and it is commonly recognized as etiological agent of many community and nosocomial infections. Regarding the knowledge about the biological properties of Lippia sidoides Cham. (Verbenaceae), this study aimed to evaluate the effectiveness of its essential oil in inhibiting the growth of S. aureus strains isolated from clinical materials and with different profi les of antibiotic resistance. The results showed prominent anti-S. aureus activity of L. sidoides essential oil noted by large growth inhibition zones (15-21 mm). MIC found was of 0.4 L/mL for all assayed strains. MIC presented prominent effectiveness in inhibiting the viability of S. aureus in broth during twenty-four hours of exposure characterizing a bacteriostatic effect. These results show the promising anti-staphylococcal property of L. sidoides essential oil and support the possibility of its rational use as alternative antibacterial agent.

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“…Para o OEOg, a inibição de fungos pode ser justificada pela grande porcentagem de eugenol, composto fenólico antisséptico de ação já conhecida (Daferera et al, 2003;Costa et al, 2011).…”

Section: Discussionunclassified

Atividade antifúngica e possível mecanismo de ação do óleo essencial de folhas de Ocimum gratissimum (Linn.) sobre espécies de Candida

Oliveira

Batista

Fernandes

et al. 2016

Rev. bras. plantas med.

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RESUMO:A espécie Ocimum gratissimum (Linn.), popularmente conhecida como alfavacacravo, é muito utilizada na medicina popular. A planta apresenta inúmeros compostos, sendo o eugenol o constituinte majoritário do seu óleo essencial e o provável responsável pela sua atividade antimicrobiana. O objetivo deste estudo foi determinar o potencial antifúngico e o possível mecanismo de ação do óleo essencial extraído das folhas de O. gratissimum L. (OEOg) sobre cepas-padrão de Candida. Para avaliação da atividade antimicrobiana foi determinada a Concentração Inibitória Mínima (CIM), o efeito do tempo de exposição, o efeito modulador na atividade de antifúngicos (ATF) de uso clínico e a ação do OEOg nas fases de crescimento exponencial e estacionário de leveduras do gênero Candida. O mecanismo de ação do OEOg foi verificado por captação do cristal violeta e avaliação da morfologia microbiana pela técnica de microcultivo. Também foi avaliada a toxicidade do OEOg sobre hemácias humanas. O OEOg apresentou boa atividade antifúngica sobre cepas de Candida, sendo capaz de reduzir a taxa de crescimento das cepas de Candida a partir de quatro horas de exposição, além de ter modulado positivamente a atividade do cetoconazol para C. tropicalis ATCC 13803 e reduzir o número de células viáveis em todas as fases de crescimento microbiano. O OEOg foi capaz de promover o aumento discreto da captação do cristal violeta e provocou alterações na micromorfologia das células de Candida spp., sugerindo que seu alvo de ação seja o envoltório celular. Observou-se baixa toxicidade do OEOg sobre hemácias humanas. Os resultados encontrados mostraram que o OEOg possui boa atividade sobre o gênero Candida, com mecanismo de ação mediado possivelmente pela ocorrência de danos no envoltório celular, além de ter sido observada baixa toxicidade, indicando do OEOg é promissor no desenvolvimento e elaboração de um novo fármaco com potencial atividade para o tratamento de doenças fúngicas. Palavras-chave:Ocimum, óleos essenciais, atividade antimicrobiana, farmacologia. ABSTRACT: Antifungal activity and potential action mechanisms of essential oil ofOcimum gratissimum (Linn.) leaves against Candida species. Ocimum gratissimum (Linn.) is a medicinal plant popularly known as "wild basil" widely used in traditional medicine. The plant has numerous compounds, and eugenol is the major constituent of its essential oil and likely responsible for its antimicrobial activity. The aim of this study was to determine the antifungal activity and the potential mechanism of action of the essential oil extracted from the leaves of O. gratissimum L. (OEOg) against standard strains of Candida. The following experiments were performed: determination of Minimum Inhibitory Concentration (MIC), determination of the effect of exposure time to OEOg; evaluation of the modulating effect of OEOg in antifungal (ATF) activity for clinical use; determination of the effects of the OEOg on different growth phases of Candida spp; determination of crystal violet (CV) uptake and the microcultu...

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The effectiveness of plant essential oils on the growth of Botrytis cinerea, Fusarium sp. and Clavibacter michiganensis subsp. michiganensis

Cited by 577 publications

References 13 publications

The control of postharvest blue and green molds of citrus in relation with essential oil–wax formulations, adherence and viscosity

The control of postharvest blue and green molds of citrus in relation with essential oil–wax formulations, adherence and viscosity

Effectiveness of Lippia sidoides Cham. (Verbenaceae) essential oil in inhibiting the growth of Staphylococcus aureus strains isolated from clinical material

Atividade antifúngica e possível mecanismo de ação do óleo essencial de folhas de Ocimum gratissimum (Linn.) sobre espécies de Candida

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