&lt;em&gt;Ocotea quixos &lt;/em&gt;essential oil: A systematic review about the ethno-medicinal uses, phytochemistry and biological activity.

Radice, Matteo; Silva, Joe; Correa, Cristian; Moya, Alejandro; Escobar, José Antonio; Martínez, Amaury Pérez

doi:10.3390/mol2net-03-04590

Cited by 5 publications

(5 citation statements)

References 17 publications

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“…Nevertheless, the most characteristic compounds such as trans-cinnamaldehyde and b-caryophyllene were not found in the essential oil investigated in the present research. It is known that essential oils from the Ocotea genus usually show an high degree of chemodiversity, as reported in previous studies [33,39], and this could explain its unusually composition. The essential oil of P. aduncum was mainly characterised by dillapiole (48.2%), trans-ocimene (7.5%) and b-caryophyllene (17.0%), which is in line with other studies carried out on Ecuadorian Piper species [18].…”

Section: Essential Oilsmentioning

confidence: 50%

Larvicidal activity of Ocimum campechianum, Ocotea quixos and Piper aduncum essential oils against Aedes aegypti

et al. 2019

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Aedes aegypti, the main arbovirus vector of the Yellow fever, Dengue, Chikungunya and Zika viruses, is widely distributed in tropical and subtropical areas throughout the world. Preventive control efforts have been implemented worldwide aimed at reducing its impact on human health. The recent reduction of chemicals available for vector control due to their negative impact on the environment and human health and the increase in mosquito resistance to insecticides have driven the research community to identify and evaluate sustainable alternatives to synthetic insecticides. In this study, the potential larvicidal effect of essential oils extracted from Ocimum campechianum, Ocotea quixos and Piper aduncum were tested in vitro. GC and GC–MS analyses showed that the main compounds were eugenol (18%), 1,8-cineole (39%) and dillapiole (48%), respectively. Susceptibility to essential oils was measured according to the WHO protocol. After 24 h, the mean percentage mortality ranged from 2.7 to 100% for P. aduncum, from 2.2 to 100% for O. campechianum, and from 2.9 to 100% for O. quixos. The highest potential was displayed by P. aduncum, followed by O. campechianum and O. quixos, with LC50 values of 25.7, 69.3 and 75.5 ppm, respectively. The rapid and effective larvicidal activity of these three oils led us to consider these results to be promising, also considering the possibility of local cultivation of these plants in tropical and subtropical areas and the simple technology for their large-scale preparation and production. Further studies are needed to evaluate the individual components and their activity as larvicides.

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Section: Essential Oilsmentioning

confidence: 50%

Larvicidal activity of Ocimum campechianum, Ocotea quixos and Piper aduncum essential oils against Aedes aegypti

et al. 2019

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“…Many Ocotea species, including O. rotundata, are widely used in Ecuador due to the quality of the timber [35]. Several parts of the tree, including bark, fruits, and leaves have aromatic properties [30], being used as a spice and in traditional healing practices [36].…”

Section: Introductionmentioning

confidence: 99%

Early Signs of the Effects of Forest Fragmentation on the Genetic Diversity and Structure of the Threatened Ecuadorian Tree Ocotea rotundata (Lauraceae)

Marques

Draper

Riofrío

et al. 2022

Forests

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The diversity of genetic resources is essential to cope with environmental changes. However, despite forests play a crucial role in mitigating changes, genetic knowledge has scarcely been used for forest conservation. In this study, we used nuclear microsatellites to understand the patterns of genetic diversity and population genetic structure in Ocotea rotundata van der Werff (Lauraceae), an endemic Ecuadorian tree, highly affected by habitat changes and fragmentation. Our results show high levels of genetic diversity, except in one population. The level of genetic differentiation between populations was low and genetic clusters showed no apparent spatial pattern. In fact, a high degree of genetic admixture was found between most populations. Migration rates were asymmetric but overall high, except in one population, where outgoing gene dispersal was limited. Nevertheless, allelic fixation values suggested a general deficit in heterozygotes, probably due to an increase in the levels of mating between close relatives. Although long-lived organisms, such as trees, can often accumulate a surprising amount of genetic diversity, the results found here could be an early sign of a decline in the diversity of O. rotundata. These findings provide baseline information on genetic resources to support future restoration programs to mitigate the impacts of changes in O. rotundata populations.

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“…There is no hard evidence for that the medicinal plants had any major therapeutic effect, but it may be noted that all three of the principal medicinal plants people used for treating covid contain compounds (3,4,5) that affect the production and action of cytokines (5,7,8,9,10), which potentially might explain their alleged efficacy in combating covid-19. Other factors that may have contributed to the relatively low mortality rate are the low prevalence of obesity, high level of physical activity, or cross-immunity acquired by frequent exposition to other viral infections (11).…”

Section: Discussionmentioning

confidence: 99%

Resilience Against the Covid-19 Pandemic among Indigenous Kichwa Communities in Ecuadorian Amazonia

Sirén¹,

Uzendoski²,

Swanson³

et al. 2020

Preprint

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<em>Ocotea quixos </em>essential oil: A systematic review about the ethno-medicinal uses, phytochemistry and biological activity.

Abstract: Graphical Abstract Ocotea quixosMain biological activities Antiplatelet, antithrombotic, anti-inflammatory, antioxidant, antifungal and antimicrobial activities. Abstract. In the Ecuadorian

Cited by 5 publications

References 17 publications

Larvicidal activity of Ocimum campechianum, Ocotea quixos and Piper aduncum essential oils against Aedes aegypti

Larvicidal activity of Ocimum campechianum, Ocotea quixos and Piper aduncum essential oils against Aedes aegypti

Early Signs of the Effects of Forest Fragmentation on the Genetic Diversity and Structure of the Threatened Ecuadorian Tree Ocotea rotundata (Lauraceae)

Resilience Against the Covid-19 Pandemic among Indigenous Kichwa Communities in Ecuadorian Amazonia

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