Chemical composition and evaluation of the essential oil fromEupatorium glabratumas biopesticide againstSitophilus zeamaisand several stored maize fungi

Pimienta-Ramírez, Lucero; García‐Rodríguez, Yolanda Magdalena; Ríos-Ramírez, Eric Mark; Lindig‐Cisneros, Roberto; Espinosa‐García, Francisco J.

doi:10.1080/10412905.2015.1093969

Cited by 13 publications

(9 citation statements)

References 19 publications

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“…However, these approaches may be helpful to highlight the behavioral responses of each single individual and to evaluate differences between sexes. As an example, in Y-tube trials, Pimienta-Ramírez et al [109] demonstrated that S. zeamais females were repelled by Eupatorium glabratum (Asteraceae) EO, while the conspecific males were attracted by the same EO. Indeed, EOs are rich of plant secondary metabolites, some of which may be recognized by insects as food attractant or allomones.…”

Section: Repellent Activitymentioning

confidence: 99%

Essential Oils in Stored Product Insect Pest Control

Campolo

Giunti

Russo

et al. 2018

Journal of Food Quality

201

113

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Among botanical extracts used as insecticides, essential oils (EOs) are promising alternatives to chemical insecticides. EOs are synthesized by plants, and they play a key role in plant signaling processes including also attractiveness toward pollinators and beneficial insects. Plant species producing essential oils (over 17,000 species) are called aromatic plants and are distributed worldwide. Our review aims to evaluate research studies published in the last 15 years concerning the use of EOs in stored product protection. More than 50% of the retrieved manuscripts have been published by authors from Eastern countries (Iran, China, India, and Pakistan), investigating different aspects related to insect pest management (exposure route, effect on the target pest, and mode of action). Coleoptera was the most studied insect order (85.41%) followed by Lepidoptera (11.49%), whereas few studies targeted new emerging pests (e.g., Psocoptera). Almost all the trials were carried out under laboratory conditions, while no experiments were conducted under real operating conditions. Future research studies concerning the use of EOs as insecticides should focus on the development of insecticide formulations which could be successfully applied to different production realities.

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Section: Repellent Activitymentioning

confidence: 99%

Essential Oils in Stored Product Insect Pest Control

Campolo

Giunti

Russo

et al. 2018

Journal of Food Quality

201

113

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“…However, chemical studies of the species are scarce. Previous phytochemical studies of A. glabrata show that less polar extracts are composed mainly by thymol and eudesmane derivatives [1,2,3] while the essential oil is constituted mainly by monoterpenes [4]. On the other hand, evaluation for antibacterial activity of extracts of A. glabrata against antibiotic resistant pathogenic bacteria show that less polar extract is the most active [5].…”

Section: Introductionmentioning

confidence: 99%

Antidiarrheal Thymol Derivatives from Ageratina glabrata. Structure and Absolute Configuration of 10-Benzoyloxy-8,9-epoxy-6-hydroxythymol Isobutyrate

Bustos-Brito

Vázquez-Heredia

Calzada

et al. 2016

Preprint

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Chemical investigation of the leaves from Ageratina glabrata yielded four new thymol derivatives, namely: 10-Benzoyloxy-8,9-dehydro-6-hydroxythymol isobutyrate (4), 10-benzoyloxy-8,9-dehydro thymol (5), 10-benzoyloxythymol (6) and 10-benzoyloxy-6,8-dihydroxy-9-isobutyryloxythymol (7). In addition, (8S)-10-benzoyloxy-8,9-epoxy-6-hydroxythymol isobutyrate (1), together with other two already known thymol derivatives identified as: 10-benzoyloxy-8,9-epoxy-6-methoxythymol isobutyrate (2) and 10-benzoyloxy-8,9-epoxythymol isobutyrate (3). In this paper, we wish to publish the structures and complete assignments of 1H and 13C NMR data of compounds 1 – 7, and the absolute configuration for compound 1, unambiguously established by single crystal X-ray diffraction, and evaluation of the Flack parameter. The in vitro antiprotozoal assay showed that compound 1 and its derivative 1a were the most potent antiamoebic and antigiardial compounds. Both compounds showed selectivity and good antiamoebic activity like emetine and metronidazole, respectively, two antiprotozoal drugs used as positive controls. In relation of anti-propulsive effect, compound 1 and 1a showed moderate inhibitory activity, their activities were comparable to quercetin and compound 9, respectively, two natural antipropulsive compounds used as positive controls. These data suggest that compound 1 may play an important role in antidiarrheal properties of Ageratina glabrata.

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“…In another previous study M. verticillata EO also was the most toxic against Musca domestica L. equaling the LC 50 of the reference insecticide DDVP [24]. The strong fumigant toxicity of M. verticillata EO can be due to its elevated content of pulegone and menthone [11].…”

Section: Two-choice Olfactometer Assaymentioning

confidence: 74%

“…did not show fumigant activity at 600 µl/l air. Similarly, Herrera et al [11] found that the EO from M. verticillata was the most bioactive among the tested EOs against S. zeamais, however they registered a higher LC 50 value that could be attributed to the natural variation in the composition of the EOs. In another previous study M. verticillata EO also was the most toxic against Musca domestica L. equaling the LC 50 of the reference insecticide DDVP [24].…”

Section: Two-choice Olfactometer Assaymentioning

confidence: 85%