Phytochemical Analysis and Nematicidal Activity of Ethanolic Leaf Extracts of Datura metel, Datura innoxia and Brugmansia suaveolens Against Meloidogyne incognita

Nandakumar, Aiyadurai; Vaganan, M. Mayil; Sundararaju, P.; Udayakumar, Rajangam

doi:10.9734/ajob/2017/34241

Cited by 23 publications

(14 citation statements)

References 21 publications

(19 reference statements)

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“…These results were higher than phenolic compounds (70.3 ± 1.1 mg GAE/g) and total flavonoids (34.2 ± 1.3 mg RE/g) found by Bhardwaj, Kumar and Ojha (2016) for the methanolic extract obtained from the leaves of specimens collected in Haryana, India. However, our results were lower than those obtained by Nandakumar et al (2017) for phenolic compounds (3.62 ± 0.0147 mg/g) and flavonoids (4.12 ± 0.0167 mg/g) found in Datura inoxia leaves collected in different regions of India (Orathanadu Village, Thanjavur District and Tamilnadu)…”

Section: Resultscontrasting

confidence: 94%

Phytochemistry and antifungal potential of Datura inoxia Mill. on soil phytopathogen control

Matias

Fernandes²,

Corrêa³

et al. 2020

Biosci. J.

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The application of chemical pesticides for the control of fungal diseases results in impacts on the environment and human health. The use of vegetal extracts with antifungal properties for the proper management of crops becomes a viable alternative, mainly for organic and family farming. The objective of this study was to carry out the phytochemical evaluation of Datura inoxia, evaluating its antifungal potential against the mycelial growth of Fusarium solani and Sclerotinia sclerotiorum. The extracts, aqueous and ethanolic, obtained from the leaves of the plant collected in areas of the municipality of Campo Grande, Mato Grosso do Sul, were submitted to phytochemical prospecting and quantification of flavonoids and total phenols. It was evaluated its antifungal activity at concentrations of 800, 1200, 1600, 2000, and 2400 μg 100 mL-1. Each concentration was separately incorporated into BDA agar, poured into Petri dishes, and inoculated with the mycelial disc of the fungus. The diameter of the colonies were measured daily. Two solutions were prepared as control, one containing the solvent added to PDA medium (ethanol solution), and another with only PDA medium (without D. inoxia extract, control). In both extracts were found the same diversity of secondary metabolites (nine classes). The ethanolic extract, a solvent of lower polarity than water, was more efficient in the extraction of these constituents. Alkaloids and phenolic compounds were the most frequent compounds (100%). In relation to antifungal activity, the ethanolic extract provided 100% inhibition of mycelial growth of Sclerotinia sclerotitorum in all concentrations, relative to the control. On the other hand, the growth of Fusarium solani was only negatively affected at the highest concentrations of 800 and 1200 μmL-1 100 mL-1. The antifungal potential of Datura inoxia was probably related to the abundance of alkaloids and phenolic compounds in its chemical constitution that negatively effects the development of the vegetative mycelium.

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Section: Resultscontrasting

confidence: 94%

Phytochemistry and antifungal potential of Datura inoxia Mill. on soil phytopathogen control

Matias

Fernandes²,

Corrêa³

et al. 2020

Biosci. J.

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“…These changes in the soil properties probably negatively affected the growth or multiplication of the nematodes in the French beans. The findings of this research are also in agreement with those of Aiyadurai et al (2018) who suggested that plant parasitic nematodes can be controlled by application of botanicals. Water and nutrition are important vital components in French bean production life and their limited supply or unavailability is one of the major abiotic factors that adversely affect French beans production in many ways.…”

Section: Journal Of Agricultural Studiessupporting

confidence: 91%

Efficacy of Neem, Tithonia and Tephrosia Leaf Extracts in Management of Root-Knot Nematodes in French Beans (Phaseolus vulgaris L.)

Njenga¹,

Gathungu²,

Mbaka³

2019

JAS

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Root-knot nematodes (Meloidogyne spp.) are a major problem in French bean production within the smallholder farming systems. Control of root-knot using synthetic nematicides is not viable due to environmental concerns relating to their toxic residues. There is need to develop alternative control options that will promote soil health and reduce parasitic nematode densities. A study was conducted to determine the efficacy of Neem (Azadirachta indica A. Juss), Tithonia (Tithonia diversifolia) and Tephrosia (Tephrosia purpurea) leaf extracts in management of root-knot. Controlled lath house and field trials were conducted where the treatments were extracts from Neem, Tithonia and Tephrosia at different concentration levels of 25 ml/L, 50 ml/L and 100 ml/L). Vydate (Oxamyl 10%) a synthetic nematicide served as a standard positive control while treatments with no extracts application and no nematode application served as negative controls. The treatments in the lath house were arranged in completely randomized design while the field trials were arranged in randomized complete block design. Fench beans were planted on nematode infested soils and data on root galling indices and yield components was collected. Data collected was subjected to analysis of variance and significantly different means separated using Tukey’s Studentized Range Test at P=0.05. The extracts evaluated reduced root galling with their efficacy being similar to that of Vydate® (Oxamyl 10%) which was used as a positive control. Neem extracts treatments had the lowest mean galling index of the extracts, followed by Tithonia. Root-knot nematode galling indices were highest in the untreated control at 10 both in trial I and trial II. Treatment trials from Neem and Tithonia at concentration levels of 100 ml/L resulted in highest yield of French beans while yield from the untreated plants were the lowest. The results indicate extracts can be adopted to suppress root-knot nematodes.

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“…The atropine content in the leaves in Datura metel was found to be 0.426%, whereas hyoscyamine levels were found to be 0.426% in the seeds and 0.43% in flower [8]. The alkaloid contents of scopolamine and atropine in the entire plant in D. metel increase gradually with the development of various growth stages and becomes most apparent when the plant reaches the end of its reproductive stage [24,25]. However, in the case of D. stramonium, the maximum amounts of alkaloids were found after ten weeks of seed germination, decreasing gradually with the beginning of the generative phase in plants [8,26].…”

Section: Biochemical Composition Of Daturamentioning

confidence: 94%

Phytochemistry, Pharmacology, and Toxicology of Datura Species—A Review

et al. 2021

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Datura, a genus of medicinal herb from the Solanaceae family, is credited with toxic as well as medicinal properties. The different plant parts of Datura sp., mainly D. stramonium L., commonly known as Datura or Jimson Weed, exhibit potent analgesic, antiviral, anti-diarrheal, and anti-inflammatory activities, owing to the wide range of bioactive constituents. With these pharmacological activities, D. stramonium is potentially used to treat numerous human diseases, including ulcers, inflammation, wounds, rheumatism, gout, bruises and swellings, sciatica, fever, toothache, asthma, and bronchitis. The primary phytochemicals investigation on plant extract of Datura showed alkaloids, carbohydrates, cardiac glycosides, tannins, flavonoids, amino acids, and phenolic compounds. It also contains toxic tropane alkaloids, including atropine, scopolamine, and hyoscamine. Although some studies on D. stramonium have reported potential pharmacological effects, information about the toxicity remains almost uncertain. Moreover, the frequent abuse of D. stramonium for recreational purposes has led to toxic syndromes. Therefore, it becomes necessary to be aware of the toxic aspects and the potential risks accompanying its use. The present review aims to summarize the phytochemical composition and pharmacological and toxicological aspects of the plant Datura.

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Phytochemical Analysis and Nematicidal Activity of Ethanolic Leaf Extracts of Datura metel, Datura innoxia and Brugmansia suaveolens Against Meloidogyne incognita

Cited by 23 publications

References 21 publications

Phytochemistry and antifungal potential of Datura inoxia Mill. on soil phytopathogen control

Phytochemistry and antifungal potential of Datura inoxia Mill. on soil phytopathogen control

Efficacy of Neem, Tithonia and Tephrosia Leaf Extracts in Management of Root-Knot Nematodes in French Beans (Phaseolus vulgaris L.)

Phytochemistry, Pharmacology, and Toxicology of Datura Species—A Review

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