In vitro activity of essential oils of Lippia sidoides and Lippia gracilis and their major chemical components against Thielaviopsis paradoxa, causal agent of stem bleeding in coconut palms

Costa, Rejane Rodrigues da; Laranjeira, Delson; Filho, José Luiz Sandes de Carvalho; Dom, Rua; Medeiros, Manoel de; Souza, Paulo Estevão de; Alves, Péricles Barreto; Cesar, Hugo; Jesus, Ramos de; Regina, Dulce; Warwick, Nunes

doi:10.1590/s0100-40422013000200007

Cited by 30 publications

(16 citation statements)

References 6 publications

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“…In L. sidoides oil, thymol (76.6%) and p‐cymene (6.3%) were the major compounds of the 21 identified, accounting for 98.6% of the total composition. These prevalent compounds were also found in L. sidoides oil analysed in other studies, with proportions varying as a function of cropping area (Oliveira, Moura, Lopes, Andrade, Silva & Figueiredo ; Cavalcanti, Niculau, Blank, Câmara, Araújo & Alves ; Farias‐Junior, Rios, Moura, Almeida, Alves, Blank, Fernandes & Scher ; Mota, Lobo, Costa, Costa, Rocha, Silva, Pohlit & Andrade‐Neto ; Carvalho, Laranjeira, Carvalho‐Filho, Souza, Blank, Alves, Jesus & Warwich ; Veras, Araruna, Costa, Coutinho, Kerntopf, Botelho & Menezes ). In contrast to our findings and most studies on this species, Lage, Montanari, Fernandes, Monteiro, Senra, Zeringota, Calmon, Matos and Daemon () reported carvacrol (31.9%) as the major component and thymol (30.6%) as the second most prevalent component in the essential oil of L. sidoides cropped in Araponga, MG.…”

Section: Resultssupporting

confidence: 64%

Chemical composition of Lippia spp. essential oil and antimicrobial activity against Aeromonas hydrophila

Majolo¹,

Rocha²,

Chagas³

et al. 2016

Aquac Res

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Phytotherapy can replace antibiotic administration as an alternative to control Aeromonas hydrophila, one of the main bacteria involved in the aetiology of farmed fish diseases. Given that plants of the Lippia spp. genus show biological potential for antimicrobial activity, this study evaluated the chemical composition of essential oils extracted from Lippia alba, Lippia origanoides and Lippia sidoides and their activity against A. hydrophila. The oils were obtained by steam distillation in a Clevenger‐type apparatus and their composition determined by gas chromatography and mass spectrometry (CG/MS). Antibacterial activity was assessed by calculating the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) using broth microdilution method. The main compounds identified were geranial (25.4%) and neral (16.6%) in L. alba oil, carvacrol (40.4%) and p‐cymene (11.4%) in L. origanoides oil and thymol (76.6%) and ortho‐cymene (6.3%) in L. sidoides oil. The three Lippia species showed bacteriostatic and bactericidal action against A. hydrophila, with MICs and MBCs ranging from 1250 to 5000 μg mL−1. Of the species tested, the best performance was obtained with essential oil of L. sidoides.

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Section: Resultssupporting

confidence: 64%

Chemical composition of Lippia spp. essential oil and antimicrobial activity against Aeromonas hydrophila

Majolo¹,

Rocha²,

Chagas³

et al. 2016

Aquac Res

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“…The activity of the essential oil of L. sidoides and L. gracilis and chemical components against the fungus Thielaviopsis paradoxa recently have been reported. The compounds p-cymene, 1.8 cineole, α-terpinene and β-caryophyllene had no efficiency when tested alone, and the authors proposed that they act in synergy with other compounds because the thymol concentration required to control the fungus was higher than the concentration of the L. sidoides essential oil (CARVALHO et al, 2013 Cruz et al (2013). Different letters represent significant differences among the essential oils or monoterpenes (p ˃ 0.05).…”

Section: Discussionmentioning

confidence: 99%

Assessment of different Lippia sidoides genotypes regarding their acaricidal activity against Rhipicephalus (Boophilus) microplus

Soares

Penha

Araújo

et al. 2016

Rev. Bras. Parasitol. Vet.

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The aim of this study was to select different genotypes of Lippia sidoides with the highest activity against larvae and engorged females of the tick Rhipicephalus (Boophilus) microplus. The germplasms studied were LSID006, LSID102, LSID103 and LSID104. The LSID104 genotype, that presented carvacrol as a major constituent, was the germplasm with the worst larvicide effect (LC50 2.99 mg/mL). The LSID006 genotype was the least effective against engorged females (LC50 12.46 mg/mL), and it was chemically similar to the LSID102 genotype, which presented the highest acaricide activity (LC50 2.81 mg/mL). We conclude that chemical similarity of the germplasms was not correlated with acaricide activity against R. (B.) microplus. The essential oil of L. sidoides is a potent natural agent. However, the findings of this work provide a better understanding for product development based on this natural product, which must consider synergic effects or the action of minor compounds.

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“…Indeed, a wide range of plant secondary metabolites exhibit antimicrobial properties, and these are often associated with the natural defense mechanism against attack by phytopathogenic bacteria and fungi (JANSSEN;SCHEFFER;BAERHEIM-SVENDSEN, 1987). In this context, a number of studies have shown that crude plant extracts and essential oils are potentially useful for controlling various types of phytopathogens (CARVALHO et al, 2013;RAHMAN;HOSSAIN;KANG, 2010;SILVA et al, 2012a;SILVA et al, 2012b;BASTOS 2007;VIGO-SCHULTZ et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

In vitroantifungal activity of Ocimum selloi essential oil and methylchavicol against phytopathogenic fungi

Costa

Pinto

Bertolucci

et al. 2015

Revista Ciência Agronômica

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The efficacy of Ocimum selloi essential oil was evaluated for controlling the growth of mycelia and spores germination Moniliophthora perniciosa. Six compounds (99.89%) of the total oil were identified by GC-MS, of which methyl chavicol, methyl eugenol,-caryophyllene, germacrene-D, bicyclogermacrene and spathulenol. Essential oil was tested for antifungal activity, which was determined by disc diffusion and minimum inhibitory concentration (MIC) determination methods. Application of the oil reduced mycelial growth in a dose dependent manner, with maximum inhibition being observed at concentration of 1,000 ppm. Such antifungal activity could be attributed to methyl chavicol since the pure compound was shown to be similarly effective against Moniliophthora perniciosa at 1,000 ppm. The oil when applied at a concentration of 1,000 ppm, reduced the spore germination of Colletotrichum gloeosporioides and M. perniciosa by 93 and 87%, respectively, but had no effect on the Alternaria alternata. It is concluded that the oil from O. selloi and its major constituent, methyl chavicol, are efficient in inhibiting M. perniciosa, but less effective against C. gloeosporioides and A. alternata. The results obtained from this work may contribute to the development of alternative anti-fungal agents to protect the cacao crop from fungal disease.

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In vitro activity of essential oils of Lippia sidoides and Lippia gracilis and their major chemical components against Thielaviopsis paradoxa, causal agent of stem bleeding in coconut palms

Cited by 30 publications

References 6 publications

Chemical composition of Lippia spp. essential oil and antimicrobial activity against Aeromonas hydrophila

Chemical composition of Lippia spp. essential oil and antimicrobial activity against Aeromonas hydrophila

Assessment of different Lippia sidoides genotypes regarding their acaricidal activity against Rhipicephalus (Boophilus) microplus

In vitroantifungal activity of Ocimum selloi essential oil and methylchavicol against phytopathogenic fungi

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