Impact of foliar application of copper sulphate and copper nanoparticles on some morpho-physiological traits and essential oil composition of peppermint (Mentha piperita L.)

Lafmejani, Zahra Nemati; Jafari, Ali; Moradi, Pejman; Moghadam, Alireza Ladan

doi:10.2478/hepo-2018-0006

Cited by 27 publications

(13 citation statements)

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“…The main component of the oil was menthol (Tab. 4) accounting for >50% of the oils, which agrees with the data of Kołodziej [17], and is more than that reported by several other authors [23,[25][26][27]. Our results obtained in this experiment are in line with Higa and Parr's [4] statement that for some soils, even repeated application of effective microorganisms can be ineffective.…”

Section: Discussionsupporting

confidence: 93%

“…Yield of essential oils was higher than that obtained by Węglarz and Załęcki [23] in the natural conditions of Poland. The combined content of essential oils in the peppermint dry herb ranged from 1.85% to 1.90% and was similar to that reported by Pourhadi et al [26], but lower than that by Rosłon et al [24], Karkanis et al [11], and Lafmejani et al [27] and much higher than that given by Zheljazkov et al [25]. It was not dependent on any application of EM preparation (Tab.…”

Section: Discussionsupporting

confidence: 84%

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Impact of effective microorganisms on weed infestation and yield of peppermint cultivated on muck-peat soil

2018

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Peppermint (Mentha ×piperita L.) rootstock cuttings with 9–11 internodes were planted on April 10, 2014 in rows 50 cm apart and with 25-cm distance in the row, on well fertilized muck-peat soil containing 82.1% of organic matter with a pH of 5.9. Peppermint plants were sprayed once with an activated EM-1 preparation, then on two or three further occasions as follows: at 10 cm height (May 10), at branching stage (May 29), and during rapid growth (June 19). EM did not affect peppermint growth or yield. Yields of the fresh and dry herb were high (means: 15,563 and 2,661 kg ha−1, respectively) and characterized by a medium (1.85–1.90%) essential oil content in the dry herb. Twenty-nine compounds were identified in the oil and its main components were menthol (53.1–58.5%), menthone (14.6–16.8%), isomenthone (6.3–6.7%), menthyl acetate (4.0–5.0%), germacrene D (2.3–3.4%), ß-caryophyllene (1.8–2.4%), viridiflorol (1.5–2.3%), and 1,8-cyneole (0.3–3.7%). EM did not affect the content of essential oil in the dry herb or the oil composition (except for 1,8-cyneole). Thirty-four days after planting, 22 weed species grew in the experimental plots and the dominant were common meadow grass (Poa pratensis L.) accounting for 20% of total weed population, annual meadow grass (Poa annua L.) 17%, common chickweed [Stellaria media (L.) Vill.] 20%, creeping yellowcress [Rorippa sylvestris (L.) Besser] 8%, hairy galinsoga [Galinsoga ciliata (Raf.) S. F. Blake] 7%, gallant soldiers (Galinsoga parviflora Cav.) 6%, Canadian horseweed [Conyza canadensis (L.) Cronq.] 6%, common groundsel (Senecio vulgaris L.) 5%, and annual nettle (Urtica urens L.) 5%. Other species occurred sporadically. The total number and fresh weight of weeds growing on 1 m2 were 412 and 246 g on plots treated with EM and 389 and 227 g on control plots, respectively, but the differences were not statistically significant.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 84%

Impact of effective microorganisms on weed infestation and yield of peppermint cultivated on muck-peat soil

2018

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“…Plantlets of Citrus reticulata , when germinated in vitro in media supplemented separately with CuO NPs (15–32 nm) at concentrations of 30 μg/ml, showed significant enhancement of total phenolic and flavonoid contents as well as antioxidant capacity [14]. Foliar treatment of Mentha piperata L.(peppermint) plants with CuNPs (1.0 g l −1 ) was reported to increase essential oil percentage by 20% [15]. CuO NPs were found to significantly enhance polyphenol, flavonoid and tannin content along with antioxidant capacity in roots of the Indian medicinal plant Withania somnifera L. Dunal (Ashwagandha) [16].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of secondary metabolites in Bacopa monnieri (L.) Pennell plants treated with copper‐based nanoparticles in vivo

Lala

2019

IET nanobiotechnol.

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The study aims to document the effect of starch-stabilised copper-based nanoparticles (CuNPs) on the biosynthesis of pharmaceutically valuable secondary metabolites, especially saponins, of the reputed nootropic herb Bacopa monnieri (L.) Pennell. CuNPs were synthesised chemically by the reduction of cupric sulphate pentahydrate with ascorbic acid using starch as the capping agent. They were characterised by UV-visible spectrophotometry, Fourier-transform infra-red spectroscopy, Xray diffraction, high-resolution transmission electron microscopy and zeta potential. The nanoparticles consisted of cuprous oxide and metallic copper, were approximately spherical, polydispersed with diameter <20 nm. Hydroponically grown B. monnieri plants were treated in vivo with the CuNPs between the concentrations of 0-100 mg l −1. Spectrophotometric estimation of the total contents of saponins, alkaloids, phenolics, flavonoids and DPPH radical scavenging capacity from the methanolic extracts of the whole plants showed a hormetic increase in the content of secondary metabolites in a concentration-dependent manner from 5 mg l −1 until it declined at toxic metabolic concentration. This was accompanied by an increase in ROS markers hydrogen peroxide and malondialdehyde as well as a hormetic effect on activities of phenylalanine ammonia lyase and antioxidant enzymes catalase, ascorbate peroxidase and superoxide dismutase. CuNPs at sub-toxic concentrations were found to enhance secondary metabolism and antioxidant capacity in Bacopa monnieri through ROS-mediated defence response. 2 Materials and methods 2.1 Synthesis of copper nanoparticles Starch-stabilised copper nanoparticles were synthesised by the chemical method of Dinda et al. [17] with slight modifications. 1.25 g starch was dissolved in 15 ml double distilled water by

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“…Sin embargo, fueron superiores a los rangos reportados en elementos como S (0,17-0,26). Esto último se debe a la aplicación de fungicidas como sulfato de cobre, los cuales son permitidos en el manejo sanitario de Cannabis con fines medicinales y han demostrado incrementar la acumulación de estos compuestos en tejido foliar en varios cultivos (Arru et al, 2004;Lafmejani et al, 2018). De igual modo, los factores edáficos no representaron una limitante para el desarrollo del cultivo.…”

Section: Discussionunclassified

Caracterización fisiológica en plantas de Cannabis medicinal durante distintas etapas fenológicas bajo estrés biótico

2021

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Introducción. Plantas expuestas a condiciones de estrés alteran su funcionamiento y generan respuestas fisiológicas que afectan su desempeño agronómico. En el cultivo de Cannabis medicinal, son escasos los trabajos de investigación sobre la fisiología de la planta y su interacción con factores bióticos. Objetivo. Determinar variables fisiológicas indicadoras de estrés en diferentes etapas fenológicas de plantas de Cannabis en invernadero y bajo condiciones fitosanitarias contrastantes. Materiales y métodos. El estudio se realizó entre noviembre y diciembre de 2019, en el Municipio Rionegro, Antioquia, Colombia. Semanalmente se sembraron lotes de plantas de Cannabis sativa L., provenientes de multiplicación asexual. Entre las semanas seis y doce posteriores al trasplante se evaluaron las variables índice y fluorescencia de clorofila (basal=Fo, máxima=Fm y variable=Fv), diferencial térmico cultivo ambiente, índice de estrés hídrico y concentración foliar de nutrientes desde el inicio de su fase vegetativa hasta la fase reproductiva y productiva, bajo dos condiciones fitosanitarias contrastantes una con la pudrición blanca causada por Sclerotinia sclerotiorum y la otra sin plagas ni patógenos. Resultados. Las plantas no presentaron estrés abiótico que afectara el aparato fotosintético en ninguna etapa. Los valores de cada nutriente estuvieron dentro de los rangos óptimos y los factores edáficos no representaron limitante para el desarrollo del cultivo. Se definieron valores referenciales de variables fisiológicas en distintos estados fenológicos bajo condiciones óptimas de desarrollo. En plantas enfermas con S. sclerotiorum, el índice de clorofila, el índice de estrés hídrico y la fluorescencia, mostraron valores referenciales que pueden ser útiles para la identificación de efectos perjudiciales en el fotosistema II. Conclusiones. En plantas enfermas el índice de clorofila y los parámetros Fv/Fm y Fv/Fo constituyeron variables indicadoras para detectar estrés biótico en plantas de Cannabis. En plantas sanas Fv/Fm, Fv/Fo, CWSI e índice de clorofila pueden evaluarse en experimentos sobre manejo agronómico del cultivo.

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Impact of foliar application of copper sulphate and copper nanoparticles on some morpho-physiological traits and essential oil composition of peppermint (Mentha piperita L.)

Cited by 27 publications

References 19 publications

Impact of effective microorganisms on weed infestation and yield of peppermint cultivated on muck-peat soil

Impact of effective microorganisms on weed infestation and yield of peppermint cultivated on muck-peat soil

Enhancement of secondary metabolites in Bacopa monnieri (L.) Pennell plants treated with copper‐based nanoparticles in vivo

Caracterización fisiológica en plantas de Cannabis medicinal durante distintas etapas fenológicas bajo estrés biótico

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