Phytotoxic activity of Moldavian dragonhead (Dracocephalum moldavica L.) essential oil and its possible use as bio-herbicide

Pouresmaeil, Mohammad; Nojadeh, Mohsen Sabzi; Movafeghi, Ali; Aghbash, Behzad Nezhadasad; Kosari‐Nasab, Morteza; Zengin, Gökhan; Maggi, Filippo

doi:10.1016/j.procbio.2022.01.018

Cited by 14 publications

(6 citation statements)

References 47 publications

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“…Hu et al (2018) found a significant increase in POD enzyme activity in L. minor after 10 µM Cu treatment, while a concentration of 20 µM decreased POD activity (p < 0.05) [49]. A similar biphasic response was reported in the study of Pouresmaeil et al (2022), when the potential herbicidal effect of Moldavian dragonhead (Dracocephalum moldavica L.) essential oil was investigated [50]. Lower levels of potential damage can be attributed to faster metabolic processes, similar to growth inhibition [26].…”

Section: Peroxidase Activitysupporting

confidence: 58%

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Assessing the Effect of Glyphosate Toxicity on Lemna minor in Different Temperature Regimes

Eck-Varanka,

Kováts,

Hubai

et al. 2023

Pollutants

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Temperature-dependent chemical toxicity has become a crucial issue taking into consideration that lakes, especially shallow waterbodies, are impacted by climate change worldwide. In this study, we are looking for an answer to what extent standard ecotoxicity assays being performed under constant and relatively low temperatures are capable of predicting the chemical risk posed by pesticides. Lemna minor test plants were exposed to glyphosate in concentrations in the range of 25, 50, 100, 200, and 400 μg/L at temperatures 10, 15, 20, 25, 30, and 35 °C. Two peaks appeared when growth inhibition was assessed; lower concentrations elucidated higher inhibition, at 20 °C, while higher concentrations were found at a higher temperature of 30 °C. The toxic effect experienced at 20 °C indicates that reported PNEC values cannot be sufficient to protect non-target aquatic species in certain environmental scenarios. In addition to growth inhibition, phytotoxicity was also assessed based on peroxidase (POD) concentrations. In general, POD showed greater sensitivity, already showing a response at the lowest temperature tested, 10 °C. Decreased POD activity was detected in the temperature range of 10–30 °C, most probably indicating damage to cell and plasma membranes.

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Section: Peroxidase Activitysupporting

confidence: 58%

“…A range of nominal concentrations within 25-400 µg/L were selected (25,50,100,200 and 400 µg/L), based on the study of Silva et al [26]. This range covers the 112 µg/L PNEC value suggested for Italy [27].…”

Section: Methodsmentioning

confidence: 99%

Assessing the Effect of Glyphosate Toxicity on Lemna minor in Different Temperature Regimes

Eck-Varanka,

Kováts,

Hubai

et al. 2023

Pollutants

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“…The literature reveals different generations of technological development in bio-inputs, ranging from inoculants based on a single isolated bacteria [6] to more recent products using a pool of microorganisms or technologies such as molecular biology [11]. The scientific literature also publicizes experimental developments on products such as bio-herbicides that can become the next generation of bio-inputs [19].…”

Section: Discussionmentioning

confidence: 99%

Innovations in Agricultural Bio-Inputs: Commercial Products Developed in Argentina and Brazil

da Silva Medina,

Rotondo,

Rodríguez

2024

Sustainability

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Innovations in agricultural bio-inputs can lead to sustainable alternatives to replace synthetic fertilizers and pesticides. However, there is no clear understanding of what technologies can become available to farmers as commercial products, particularly in developing countries. This study summarizes the innovations used in commercial products in Argentina and Brazil based on the countries’ official data and on in-depth surveys conducted with 14 bio-input private companies. The results reveal ongoing development efforts to improve traditional products, such as inoculants that help plants fix nitrogen. There is also progress in mastering the formulation of new bio-inputs, such as bio-fertilizers that promote plant growth and bio-pesticides for pest control. Lastly, the next generation of bio-inputs composed of phytovaccines promises to help prepare plants’ immune systems against the attack of pathogenic fungi and bacteria, while bio-herbicides can potentially reduce the use of synthetic herbicides to prepare fields for harvest. Domestic companies based in Argentina and Brazil play an important role in these innovations that can underpin bio-economy growth in developing countries.

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“…Regarding antioxidant activity, existing studies link it to essential oil composition [ 1 , 8 , 18 , 19 , 40 , 55 ], but there are studies that link it to phenolic composition [ 6 , 11 , 12 , 13 , 19 , 24 , 27 ]. It is widely known that this activity may be one of the most important mechanisms forming the basis of numerous biological activities, such as those that are cytotoxic or antibacterial [ 12 , 22 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Cytotoxic, Antioxidative and Antimicrobial Effects of Dracocephalum moldavica L. Cultivars

et al. 2023

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The aim of the present study was to correlate the antioxidant, antimicrobial, and cytotoxic activities of hydroalcoholic extracts obtained from the aerial parts of three Dracocephalum moldavica L. cultivars with their polyphenolic compositions. The polyphenols were identified and quantified using spectrophotometrical methods and LC–MS analysis. Their antioxidant capacities were assessed using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) methods. Their in vitro antimicrobial efficacies were assessed using the agar well diffusion and broth microdilution methods. Their cytotoxicity was investigated on normal diploid foreskin fibroblasts (BJ) and on colorectal adenocarcinoma (DLD-1) cell lines. The results pointed out significant amounts of polyphenolic compounds in the compositions of the tested cultivars, with rosmarinic acid as the main compound (amounts ranging between 5.337 ± 0.0411 and 6.320 ± 0.0535 mg/mL). All three cultivars displayed significant antioxidant (IC50 ranging between 35.542 ± 0.043 and 40.901 ± 0.161 µg/mL for the DPPH assay, and for the FRAP assay 293.194 ± 0.213 and 330.165 ± 0.754 µmol Trolox equivalent/mg dry vegetal material) and antimicrobial potential (especially towards the Gram-positive bacteria), as well as a selective toxicity towards the tumoral line. A significant positive correlation was found between antioxidant activity and the total phenolic acids (r2 = 0.987) and polyphenols (r2 = 0.951). These findings bring further arguments for strongly considering D. moldavica cultivars as promising vegetal products, which warrants further investigation.

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Phytotoxic activity of Moldavian dragonhead (Dracocephalum moldavica L.) essential oil and its possible use as bio-herbicide

Cited by 14 publications

References 47 publications

Assessing the Effect of Glyphosate Toxicity on Lemna minor in Different Temperature Regimes

Assessing the Effect of Glyphosate Toxicity on Lemna minor in Different Temperature Regimes

Innovations in Agricultural Bio-Inputs: Commercial Products Developed in Argentina and Brazil

Evaluation of the Cytotoxic, Antioxidative and Antimicrobial Effects of Dracocephalum moldavica L. Cultivars

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