Insecticidal activity of a chemotype VI essential oil from Lippia alba leaves collected at Caatinga and the major compound (1,8-cineole) against Nasutitermes corniger and Sitophilus zeamais

Lima, Thâmarah de Albuquerque; Baptista, Nelânia Maria de Queiroz; Oliveira, Ana Patrícia Silva de; Silva, Pérsio Alexandre da; Gusmão, Norma Buarque de; Correia, Maria Tereza dos Santos; Napoleão, Thiago Henrique; Silva, Márcia Vanusa da; Paiva, Patrícia Maria Guedes

doi:10.1016/j.pestbp.2021.104901

Cited by 16 publications

(6 citation statements)

References 79 publications

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“…Although the mechanism of action is not fully understood, it is already described in the literature, several monoterpenes are neurotoxic because they inhibit the enzyme acetylcholinesterase, and have the ability to interfere with the metabolic functions of arthropods (Jankowska et al, 2018;Medeiros et al, 2019;Yang et al, 2021). For example, 1,8-cineol (eucalyptol) extracted from Lippia alba has remarkable insecticidal activity (Lima et al, 2021). Moreover, eucalyptol extracted from the EOs of Senecio cannabifolius (Yang et al, 2021), Melinis minutiflora (Prates et al, 1998) and Eucalyptus globulus (Chagas et al, 2002) was found to be able to kill 100% of R.…”

Section: Discussionmentioning

confidence: 99%

Activity of essential oils from leaves, flower buds and stems of Tetradenia riparia on Rhipicephalus (Boophilus) microplus larvae

Cella

Rahal

Silva

et al. 2023

Rev. Bras. Parasitol. Vet.

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Around the world, the main problems of livestock are caused by ectoparasites, however, commercial acaracide are toxic to the environment and detrimental to One Health. Therefore, research has increasingly focused on development of natural products as alternatives for tick control. The purpose of this study was to evaluate the larvicidal effect on Rhipicephalus (Boophilus) microplus, through use of essential oils (EOs) extracted from the leaves, flower buds and stems of Tetradenia riparia. The chemical composition of these EOs was determined through gas chromatography coupled to mass spectrometry (GC-MS). They were tested on larvae at concentrations of 100.000 to 40 µg/mL, using the larval packet test and under semi-natural conditions. The main class of compounds in the chemical composition was sesquiterpenes (both oxygenates and hydrocarbons), whereas the predominant compounds in the leaves, flower buds and stems were 14-hydroxy-9-epi-caryophyllene, T-cadinol and 6-7-dehydroroyleanone, respectively. The leaves proved to be the most effective, with highest larvicidal activity (LC99.9 = 83.53 µg/mL). When tested under semi-natural conditions, the oils obtained efficiency above 98% in all compound tests. The results indicated that these EOs were effective against R. (B.) microplus larvae in vitro and ex-situ, proving that this plant has bioactive molecules with significant larvicidal activity.

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Section: Discussionmentioning

confidence: 99%

Activity of essential oils from leaves, flower buds and stems of Tetradenia riparia on Rhipicephalus (Boophilus) microplus larvae

Cella

Rahal

Silva

et al. 2023

Rev. Bras. Parasitol. Vet.

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“…Oxymatrine showed a wide range of biological properties, such as pesticidal [21,22], antiviral [23], anti-inflammatory [24], and anti-tumor effects [25]. The monoterpene 1,8-cineole (CN, Figure 1, eucalyptol), an essential oil isolated from the eucalyptus leaves, exhibited a variety of interesting activities, such as antimicrobial [26,27], anti-inflammatory [28], and insecticidal properties [29,30]. The plant essential oils used as botanical pesticides for pest control will be a trend in the foreseeable future [31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Exploration of Synergistic Pesticidal Activities, Control Effects and Toxicology Study of a Monoterpene Essential Oil with Two Natural Alkaloids

Fang

et al. 2023

Toxins

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With the increasing development of pest resistances, it is not easy to achieve satisfactory control effects by using only one agrochemical. Additionally, although the alkaloid matrine (MT) isolated from Sophora flavescens is now utilized as a botanical pesticide in China, in fact, its pesticidal activities are much lower in magnitude than those of commercially agrochemicals. To improve its pesticidal activities, here, the joint pesticidal effects of MT with another alkaloid oxymatrine (OMT) (isolated from S. flavescens) and the monoterpene essential oil 1,8-cineole (CN) (isolated from the eucalyptus leaves) were investigated in the laboratory and greenhouse conditions. Moreover, their toxicological properties were also studied. Against Plutella xylostella, when the mass ratio of MT and OMT was 8/2, good larvicidal activity was obtained; against Tetranychus urticae, when the mass ratio of MT and OMT was 3/7, good acaricidal activity was obtained. Especially when MT and OMT were combined with CN, the significant synergistic effects were observed: against P. xylostella, the co-toxicity coefficient (CTC) of MT/OMT (8/2)/CN was 213; against T. urticae, the CTC of MT/OMT (3/7)/CN was 252. Moreover, the activity changes over time of two detoxification enzymes, carboxylesterase (CarE) and glutathione S-transferase (GST) of P. xylostella treated with MT/OMT (8/2)/CN, were observed. In addition, by scanning electron microscope (SEM), the toxicological study suggested that the acaricidal activity of MT/OMT (3/7)/CN may be related to the damage of the cuticle layer crest of T. urticae.

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“…It has been identified as a major compound in Lippia alba essential oil, contributing to the characteristic aroma of ripe fruit and exhibiting anti-nutritional effects on Sitophilus zeamais. [26][27][28] 1,8-cineole synthase, a typical multiproduct enzyme in the plant kingdom, is capable of synthesizing the characteristic 'cineole cassette' monoterpenes, with 1,8-cineole as the dominant volatile product in some Nicotiana species. 29 Previous studies have demonstrated that transgenic tobacco overexpressing Salvia officinalis 1,8-cineole synthase (SoCINS) enhanced terpenoid production, 30 whereas ectopic expression of Salvia guaranitica (Sg)CINS in transgenic plants can improve resistance against cotton leafworms.…”

Section: Introductionmentioning

confidence: 99%

“…Extensive research has been conducted to determine the biological significance of 1,8‐cineole in plants. It has been identified as a major compound in Lippia alba essential oil, contributing to the characteristic aroma of ripe fruit and exhibiting anti‐nutritional effects on Sitophilus zeamais 26–28 . 1,8‐cineole synthase, a typical multiproduct enzyme in the plant kingdom, is capable of synthesizing the characteristic ‘cineole cassette’ monoterpenes, with 1,8‐cineole as the dominant volatile product in some Nicotiana species 29 .…”

Section: Introductionmentioning

confidence: 99%

Metabolic engineering of a 1,8‐cineole synthase enhances aphid repellence and increases trichome density in transgenic tobacco (Nicotiana tabacum L.)

Zheng

Wei

et al. 2023

Pest Management Science

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BACKGROUND: The green peach aphid (Myzus persicae Sulzer) is a harmful agricultural pest that causes severe crop damage by directly feeding or indirectly vectoring viruses. 1,8-cineole synthase (CINS) is a multiproduct enzyme that synthesizes monoterpenes, with 1,8-cineole dominating the volatile organic compound profile. However, the relationship between aphid preference and CINS remains elusive.RESULTS: Here, we present evidence that SoCINS, a protein from garden sage (Salvia officinalis), enhanced aphid repellence and increased trichome density in transgenic tobacco. Our results demonstrated that overexpression of SoCINS (SoCINS-OE) led to the emission of 1,8-cineole at a level of up to 181.5 ng per g fresh leaf. Subcellular localization assay showed that SoCINS localized to chloroplasts. A Y-tube olfactometer assay and free-choice assays revealed that SoCINS-OE plants had a repellent effect on aphids, without incurring developmental or fecundity-related penalties. Intriguingly, the SoCINS-OE plants displayed an altered trichome morphology, showing increases in trichome density and in the relative proportion of glandular trichomes, as well as enlarged glandular cells. We also found that SoCINS-OE plants had significantly higher jasmonic acid (JA) levels than wild-type plants. Furthermore, application of 1,8-cineole elicited increased JA content and trichome density. CONCLUSION: Our results demonstrate that SoCINS-OE plants have a repellent effect on aphids, and suggest an apparent link between 1,8-cineole, JA and trichome density. This study presents a viable and sustainable approach for aphid management by engineering the expression of 1,8-cineole synthase gene in plants, and underscores the potential usefulness of monoterpene synthase for pest control.

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Insecticidal activity of a chemotype VI essential oil from Lippia alba leaves collected at Caatinga and the major compound (1,8-cineole) against Nasutitermes corniger and Sitophilus zeamais

Cited by 16 publications

References 79 publications

Activity of essential oils from leaves, flower buds and stems of Tetradenia riparia on Rhipicephalus (Boophilus) microplus larvae

Activity of essential oils from leaves, flower buds and stems of Tetradenia riparia on Rhipicephalus (Boophilus) microplus larvae

Exploration of Synergistic Pesticidal Activities, Control Effects and Toxicology Study of a Monoterpene Essential Oil with Two Natural Alkaloids

Metabolic engineering of a 1,8‐cineole synthase enhances aphid repellence and increases trichome density in transgenic tobacco (Nicotiana tabacum L.)

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