Essential oil composition of <i>Heterothalamus alienus</i> (Spreng.) Kuntze (Romerillo) from Argentina. Effect of harvesting period on the essential oil composition

Duschatzky, Claudia; Almeida, Norma; Possetto, Mirta; Michis, Fabiana; Scappini, Elena; Lampasona, Marina P. de; Schuff, Carola

doi:10.1002/ffj.1747

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…According to Duschatzky et al (2007) Allelochemicals have the ability to interfere in primary metabolic processes and plant growth, where the actions of these compounds can directly affect cell division and elongation, which are extremely important processes to ensure plant growth and development of the plants (Pires & Oliveira, 2011).…”

Section: Essential Oil Allelopathic Effectsmentioning

confidence: 99%

Chromatographic profile and allelopathic potential of the essential oil of Acritopappus confertus (Gardner) R. M. King & H. Rob. (Asteraceae)

Sousa

Leite

Linhares

et al. 2020

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The present study aims to test the Acritopappus confertus (Gardner) R. M. King & H. Rob. essential oil allelopathic potential on the germination and inital development of Cenchrus echinatus L. and Lactuca sativa L. seedlings, in addition to identifying and quantifying chemical constituents. The chemical composition analysis was performed by gas chromatography (GC-FID) and gas chromatography coupled to mass-spectrometry (GC-MS). For the allelopathic assays, the essential oil was emulsified with dimethylsulfoxide (DMSO) in a 1:1 ratio, and diluted in distilled water to obtain 0.001, 0.01, 0.10, 0.25, 0.50, 0.75 and 1% c. The control consisted of 1% aqueous DMSO solution.Treatments were performed in five repetition with 20 seeds each. The pH of the oils were measured and adjusted to a scale of 6 to 7. Assays were conducted in a germination chamber at 25 °C with a 12h photoperiod. Seed germination, Germination Speed Index (GSI), caulicle and radicle length were analyzed. The data were subjected to analysis of variance and the means were compared by Tukey test (p<0.05), through the ASSISTAT. The constituents mycene, β-pinene and limonene stood out the most in chemical analysis. The essential oil did not influence C. echinatus and L. sativa seed germination, however it influenced GSI and seedling development. The effects observed herein may be due to chemical constituents found in the studied species, which may act in an isolated or combined manner.

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Section: Essential Oil Allelopathic Effectsmentioning

confidence: 99%

Chromatographic profile and allelopathic potential of the essential oil of Acritopappus confertus (Gardner) R. M. King & H. Rob. (Asteraceae)

Sousa

Leite

Linhares

et al. 2020

RSD

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In vitro protective effect of Heterothalamus alienus against the Philodryas patagoniensis venom

et al. 2022

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Cytotoxicity of essential oils from two species of Heterothalamus (Asteraceae)

et al. 2011

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Essential oils are widely found in plant species. They can be involved in a variety of ecological interactions and may act as inhibitors of germination, suppressing root apical-meristem growth in some species. The present study aimed to determine the potential cytotoxicity of essential oils from leaves of Heterothalamus psiadioides Less. and H. alienus (Sprengel) O.Kuntze on root tips of lettuce (Lactuca sativa L.) and onion (Allium cepa L.). Lettuce seeds germinated with essential oils from H. psiadioides and H. alienus had a reduced mitotic index (MI) for all treatments. Onion seedlings treated with H. psiadioides oil showed a decrease in MI, and seedlings treated with H. alienus oil showed a decrease in MI of 89% in the most concentrated treatment. Analysis of the results showed chromosomal abnormalities, including stickiness, c-mitosis, micronuclei and anaphase bridges in lettuce and onion root tips exposed to essential oils of Heterothalamus.

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Essential oil composition of Heterothalamus alienus (Spreng.) Kuntze (Romerillo) from Argentina. Effect of harvesting period on the essential oil composition

Cited by 5 publications

References 3 publications

Chromatographic profile and allelopathic potential of the essential oil of Acritopappus confertus (Gardner) R. M. King & H. Rob. (Asteraceae)

Chromatographic profile and allelopathic potential of the essential oil of Acritopappus confertus (Gardner) R. M. King & H. Rob. (Asteraceae)

In vitro protective effect of Heterothalamus alienus against the Philodryas patagoniensis venom

Cytotoxicity of essential oils from two species of Heterothalamus (Asteraceae)

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