Allelopathic Potential of Ethanolic Extract and Phytochemical Analysis of Paspalum maritimum Trind

Pereira, José Roberto; Paulino, Clinston; Endres, Laurício; Santana, Antônio Euzébio Goulart; Pereira, F.R.S.; Souza, Renan Cantalice de

doi:10.1590/s0100-83582019370100053

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…inhibits the growth of L. sativum, Solanum lycopersicum L., Allium cepa L., and Triticum aestivum L. seedlings and has high levels of phenolic compounds. Pereira et al [40] found that the ethyl acetate fraction of Pancratium maritimum L. inhibits the tested plants due to the presence of tannins, flavanone, steroids, and saponins. Previous research indicates that active fractions from allelopathic plant extracts contain bioactive compounds.…”

Section: Separation Of the Active Fraction In The S Garrettiana Leaf Extractsmentioning

confidence: 99%

Assessment of Allelopathic Potential of Senna garrettiana Leaves and Identification of Potent Phytotoxic Substances

et al. 2022

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Senna garrettiana (Craib) Irwin & Barneby (Fabaceae) is a medicinal plant known to be rich in biologically active compounds that could be exploited to produce bioherbicides. The present study was conducted to explore the allelopathic potential and phytotoxic substances of S. garrettiana. Extracts of S. garrettiana leaves were found to significantly inhibit the growth of Lepidium sativum L. and Echinochloa crus-galli (L.) P. Beauv. (p ≤ 0.05). The phytotoxic substances were isolated and identified as vanillic acid and ferulic acid by bioassay-directed fractionation and spectral data analysis. The two compounds were shown to significantly inhibit the seed germination, seedling growth, and dry biomass of L. sativum. Based on the concentration required for 50% growth inhibition (defined as IC50), the roots of L. sativum were the most sensitive to the compounds, and the inhibitory effect of ferulic acid (IC50 = 0.62 mM) was >1.3 times more potent than that of vanillic acid (IC50 = 0.82 mM). In addition, a mixture of the two compounds (0.3 mM) resulted in synergistic inhibitory activity against the L. sativum roots compared with the individual compounds. These results suggest that the extracts of S. garrettiana leaves and their phytotoxic compounds have potential as candidate natural herbicides.

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Section: Separation Of the Active Fraction In The S Garrettiana Leaf Extractsmentioning

confidence: 99%

Assessment of Allelopathic Potential of Senna garrettiana Leaves and Identification of Potent Phytotoxic Substances

et al. 2022

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“…These results were similar to the study by Moura et al (2018) which reported the signi cant effect of Bambusa vulgaris leaves extracts on the germination speed of Lactuca sativa (L). Pereira et al [2019] also found the clear effect of Paspalum maritimum Trind on the speed and meantime of germination of Lactuca sativa. However, the current study's nding is in contrast with the results from the study by Monsang et al (2019), which observed the above bamboo species did not have an inhibitory effect on maize and some stimulatory effect on soybean germination speeds.…”

Section: Allelopathic Effects Of O Alpina Leaves On Germination Param...mentioning

confidence: 76%

Allelopathic Effects of Oldeania alpina (K. Schum.) Leaves Aqueous Extract on Seed Germination and Initial Seedling Growth of two selected crops

Mamude

Asfaw

2022

Preprint

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This study aimed to investigate the allelopathic effects of Oldeania alpina leaves aqueous extract on germination and initial growth of barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) test crops in a laboratory experiment. To this end, different aqueous extract concentrations (0%, 2.5%, 5%, 7.5%, and 10%) were prepared and used to irrigate seeds of test crops. The effect of the extract was tested by placing a set of 50 seeds of barley and wheat separately in six replicates of Petri dishes using a completely randomized design. Besides, four different solvents (hexane, ethyl acetate, methanol, and water) were used to prepare O. alpina leaves extracts and subjected to qualitative analysis of nine selected allelochemical compounds namely; flavonoids, phenols, tannins, terpenoids, steroids, quinones, coumarins, saponin and, anthraquinones. Data were analyzed using both descriptive and inferential statistics by SPSS software version 27. The study results showed a significant (p < 0.05) concentrations-based inhibitory effect of O. alpina leaves extract on germination parameters and initial growth of the two tested crops. In addition, it showed the presence of all tested allelochemicals except Anthraquinones in O. alpina leaves extracts. However, further field study would be necessary to evaluate and confirm the findings on a natural soil condition.

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Ipomoea batatas (L.) Lam. extracts and their allelopathic effect on weeds

Hernández Pérez,

Olarte Paredes,

Briones Tellez

et al. 2023

BIOTECNIA

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Muchos de los metabolitos secundarios que se sintetizan en plantas tiene efectos alelopáticos. Tales aleloquímicos, son excretados por diferentes vías y llegan a estimular, retrasar o inhibir eventos como germinación, crecimiento o desarrollo otras plantas aledañas, fenómeno alelopático que tiene una especial atención en los últimos años, en agroecología, por evidentes propiedades herbicidas. Algunos estudios, han permitido el desarrollo de nuevo bioherbicidas para el control de arvenses, en sustitución de herbicidas sintéticos. El objetivo de estos ensayos fue evaluar el efecto alelopático deextractos acuosos y etanólicos de Ipomoea batatas a diferentes concentraciones (0, 1, 2 y 3.33 %) sobre plantas aceptoras: Amaranthus hypochondriacus y Portulaca olecarea en condiciones controladas, tomando como variables respuesta; la germinación total (GT), índice de velocidad de germinación(IVG) y longitud radicular (LR). Los resultados mostraron que los extractos acuoso pH 7 no tuvieron efecto sobre la germinación de A. hypochondriacus, observándose un ligero retraso en la velocidad de germinación y efecto estimulante en la longitud radicular a concentraciones de 2 y 3.3 %. Cuandose probó el extracto acuoso a pH 5, se evidenció efecto inhibitorio significativo en las tres variables respuesta, lo cual aumentaba con la concentración sobre las aceptoras, siendo más sensible en P. oleracea. Similar resultado se obtuvo con el extracto etanólico, donde el efecto inhibitorio fue dependiente de la concentración y A. hypochindriacus la especiemás sensible hasta llegar a una inhibición del 100 % de la germinación incluso con la dosis más baja.

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Allelopathic Potential of Ethanolic Extract and Phytochemical Analysis of Paspalum maritimum Trind

Cited by 4 publications

References 25 publications

Assessment of Allelopathic Potential of Senna garrettiana Leaves and Identification of Potent Phytotoxic Substances

Assessment of Allelopathic Potential of Senna garrettiana Leaves and Identification of Potent Phytotoxic Substances

Allelopathic Effects of Oldeania alpina (K. Schum.) Leaves Aqueous Extract on Seed Germination and Initial Seedling Growth of two selected crops

Ipomoea batatas (L.) Lam. extracts and their allelopathic effect on weeds

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