Bioatividade de óleos essenciais no controle de Botrytis cinerea isolado de morangueiro

Lorenzetti, Emi Rainildes; Monteiro, Fernando Pereira; Souza, Paulo Estevão de; Souza, Rovilson José de; Scalice, H.K.; Diogo, R.; Pires, Marcus Sandes

doi:10.1590/s1516-05722011000500019

Cited by 35 publications

(25 citation statements)

References 13 publications

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“…Na literatura são encontrados alguns trabalhos sobre o efeito de óleos essenciais de várias plantas no controle de fungos fitopatogênicos (Nascimento et al, 2008;Carnelossi et al 2009;Kumar et al, 2009;Silva et al, 2009;Souza Júnior et al, 2009;Anaruma et al, 2010;Combrinck et al, 2011;Lorenzetti et al, 2011 Os óleos essenciais foram extraídos por arraste por vapor de água, conforme Wasicky (1989) utilizando o destilador piloto (Linax®, modelo D20). Para isso, coletaram-se amostras de 5 kg de folhas de cada espécie medicinal: alecrim-pimenta (Lippia sidoides Cham.…”

Section: Introductionunclassified

Composição química e atividade in vitro de três óleos essenciais sobre Colletotrichum gloeosporioides do maracujazeiro

Aquino

Sales

Soares

et al. 2014

Rev. bras. plantas med.

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RESUMO:Objetivou-se avaliar a ação de diferentes concentrações de óleos essenciais de três plantas medicinais sobre o crescimento micelial, a produção e a germinação de conídios de Colletotrichum gloeosporioides (Penz.). Utilizou-se os óleos essenciais de Lippia sidoides Cham., Cymbopogon citratus (DC) Stapf.) e Ocimum gratissimum L. em cinco concentrações (0 µL mL -1 , 1 µL mL -1 , 3 µL mL -1 , 5 µL mL -1 e 7 µL mL -1 ) com 4 repetições no delineamento inteiramente casualizado, em esquema fatorial 5x3. Os óleos foram analisados por cromatografia gasosa acoplada com espectrometria de massas. Para todas as características verificou-se efeito significativo da interação "Óleo" versus "Concentração". O óleo essencial de C. citratus proporcionou a maior inibição do crescimento micelial em todas as concentrações testadas. Os outros óleos não se diferenciaram, exceto a partir da concentração de 5 µL mL -1 , onde o óleo de L. sidoides foi superior ao óleo de O. gratissimum. Na produção e germinação de conídios, o óleo de C. citratus, foi superior aos óleos de L. sidoides e de O. gratissimum nas concentrações de 1 µL mL -1 e 3 µL mL -1 , inibindo completamente a produção e germinação a partir da concentração de 3 µL mL -1 . As concentrações influenciam em todas as variáveis, ajustando-se à equação do modelo linear. Observa-se o decréscimo nessas, à medida em que se aumentam as concentrações dos óleos testados. Os óleos essenciais testados possuem efeito fungitóxico e fungistático. Palavras-chave: Colletotrichum gloeosporioides, compostos vegetais, controle de fitopatógenosABSTRACT: Chemical composition and in vitro activity of three essential oils on Colletotrichum gloeosporioides from passion fruit. The objective of this study was to evaluate the action of different concentrations of essential oils of three medicinal plants on the mycelial growth, production and conidial germination of Colletotrichum gloeosporioides (Penz.). We used a completely randomized design, in a 5x3 factorial design, being five concentrations (0 µL mL -1 , 1 µL mL -1 , 3 µL mL -1 , 5 µL mL -1 e 7 µL mL -1 ) x three oils from Lippia sidoides Cham., Cymbopogon citratus (DC) Stapf. and Ocimum gratissimum L., with four replications. The oils were analyzed by gas chromatography with mass spectrometry. There was a significant interaction of concentration versus species on all analyzed traits. The essential oil from C. citratus yielded the highest mycelial growth inhibition at all concentrations. The other oils were not differentiated, except at the concentration of 5μL mL -1 , in which the oil of L. sidoides was more efficient that the oil of O. gratissimum. In conidial production and germination, the oil of C. citratus was superior to the oil of L. sidoides and O. gratissimum at the concentrations of 1 µL mL -1 and 3 µL mL -1 , as it completely inhibited the production and germination of conidia at the concentrations of 3 µL mL -1 and above. The concentrations influenced all the variables, adjusting themselves to the linear model equation. We observed...

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Section: Introductionunclassified

Composição química e atividade in vitro de três óleos essenciais sobre Colletotrichum gloeosporioides do maracujazeiro

Aquino

Sales

Soares

et al. 2014

Rev. bras. plantas med.

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“…The results obtained with the clove extract are equivalent to those obtained with the fungicide, showing it to be a promising alternative in the control of phytopathogenic fungi. LORENZETTI et al (2011), when evaluating the effect of clove essential oil on Botrytis cinerea, found that, although this pathogen had presented mycelial growth, it did not produce spores during the evaluation. This result supports disease control, due to increasing the time required for reproduction.…”

Section: Resultsmentioning

confidence: 99%

In vitro antimicrobial activity and alternative control of anthracnose in papaya

et al. 2018

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We evaluated the efficacy of natural products in the control of papaya anthracnose, in vitro and in vivo. The in vitro experiments for evaluation of mycelial growth used a completely randomized 10 × 4 factorial design (treatments × evaluation periods) with eight replicates, with sporulation evaluated at the end of the experiment. The treatments involved the use of aqueous extract at concentrations of 5 and 15% for Syzygium aromaticum (L.) Merr. & Perry (clove), Cinnamomum zeylanicum Breym (cinnamon), and Zingiber officinalis Rox. (ginger); 1 and 3% chitosan; the fungicide Prochloraz at 100 µg.mL-1; and a control (no treatment). For evaluating conidia germination, we used six treatments with five replicates. The treatments included 7.5% of each extract (clove, cinnamon, and ginger), 1.5% chitosan, and 50 µg.mL-1 of Prochloraz. For the in vivo experiment, “Formosa” papaya “Tainung 1” was used in a completely randomized design, with six treatments and four replicates to evaluate the severity of anthracnose caused by Colletotrichum gloeosporioides. The fruits were treated by immersion for 5 min with 15% clove, cinnamon, and ginger extracts, 8% chitosan, and control with distilled water, and immersion for 2 min in Prochloraz (33.75 g a.i./100 L). The treatments with 15% clove extract and 8% chitosan were effective in all evaluations, resulting in a viable alternative to the fungicide Prochloraz. The treatments with ginger extract were less effective and those with cinnamon offered intermediate control.

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“…Carnelossi et al (2009) observed total or partial inhibition of C. gloeosporioides sporulation with the use of essential oils of lemon grass, eucalyptus, mint and tarragon. Besides, Lorenzetti et al (2011) verified the effect of essential oil of various species on the control of the fungus Botrytis cinérea in strawberry gray with concentrations of 125 and 1000 ppm. The C. zeylanicum oil was found to efficiently affect both mycelial growth and germination of fungi spores.…”

Section: Mycelial Growth and Conidium Production Of C Cassiicolamentioning

confidence: 86%

Alternative control of Corynespora cassiicola in papaya seedlings and fruits by Cinnamomum zeylanicum essential oil

Bitu¹,

Santos²,

Rodrigues³

et al. 2016

Afr. J. Agric. Res.

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The study aimed to evaluate the efficiency of essential oil concentrations on Cinnamomum zeylanicum leaves as a possible fungicide against mycelial growth, and the sporulation of Corynespora cassiicola in papaya seedling and fruit. The study performed three experiments, namely comparison of the anti-C. cassiicola activity of: 1 µL mL-1 C. zeylanicum essential oil, commercial fungicide, and controltreatment; comparison of the anti-C. cassiicola activity of five essential oil concentrations (0.0, 0.5, 1.0, 2.0, and 4.0 µL mL-1) and a commercial fungicide (150 g ha-1 i.a.); and the effect of applying essential oil concentrations (0.0, 0.5, 1.0, 2.0 and 4.0 µL mL-1) before and after the application of mycelium disk fungus. It was found that the essential oil from C. zeylanicum inhibits mycelial growth and sporulation of the C. cassiicola fungus. The essential oil was able to maintain lower percentage of leaves with lesions in papaya seedling up to 14 days after the inoculation. The essential oil derived from C. zeylanicum, applied as a preventive treatment, is efficient in controlling the size of lesions in papaya fruits, however, the effect is not observed if the essential oil is applied after infection.

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Bioatividade de óleos essenciais no controle de Botrytis cinerea isolado de morangueiro

Cited by 35 publications

References 13 publications

Composição química e atividade in vitro de três óleos essenciais sobre Colletotrichum gloeosporioides do maracujazeiro

Composição química e atividade in vitro de três óleos essenciais sobre Colletotrichum gloeosporioides do maracujazeiro

In vitro antimicrobial activity and alternative control of anthracnose in papaya

Alternative control of Corynespora cassiicola in papaya seedlings and fruits by Cinnamomum zeylanicum essential oil

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