Screening of ethnomedicinal plants for their antifungal and nematicidal activities against soil-borne phytopathogens

Farzana,; Abid, Muhammad; Hussain, Faisal

doi:10.1016/j.sajb.2021.12.003

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…They might have died from some natural causes. Piper betel, Allium sativum and Cassia fistula extracts at concentrations of 5 and 10% showed 76 to 98% mortality and egg hatchability rates 72 h after treatment (Farzana and Faisal, 2022). At the end of the egg hatch inhibition test, results showed that egg hatch inhibition increased with increase in concentration of extract.…”

Section: Resultsmentioning

confidence: 91%

Nematicidal activity of Ageratum conyzoides leaf extract against root-knot nematode (Meloidogyne javanica) on eggplant in Jalingo, Nigeria

Mamman

2023

dujopas

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Devastation of crops by pests is exacerbated by human activities but nature provides remedies that are environmentally friendly. This study was carried out to evaluate the activity of A. conyzoides leaf extract against Meloidogyne javanica on eggplant in Jalingo, Nigeria. Three concentrations (crude extract, 5 ml and 10 ml dilutions) of extract of Ageratum conyzoides as well as control (no application) were applied on juveniles and eggs of M. javanica in petri dishes in the laboratory in 2018 and 10 ml of the same extract was applied into holes at the base of eggplants transplanted into a nematode-infested field in 2018 and 2019. Result of the juvenile mortality test showed that the extract treatments caused the mortality of M. javanica juveniles with crudes extract being highest at 90.3%. Results of the egg hatch inhibition test also showed the extract treatments significantly reduced egg hatch compared to control with crude extract having the highest inhibition of 85.5%. Field experiment in both years indicated that the extract treatments recorded significantly (P˂0.05) better result than control in all parameters in both years. There was reduced root galling and nematode reproduction and by extension final nematode population with attendant high yield in extract-treated plants. It is therefore concluded that A. conyzoides has the potential for use as a bio-pesticide against M. javanica.

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Section: Resultsmentioning

confidence: 91%

Nematicidal activity of Ageratum conyzoides leaf extract against root-knot nematode (Meloidogyne javanica) on eggplant in Jalingo, Nigeria

Mamman

2023

dujopas

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“…In recent years, there has been an increasing interest in the application of allelochemicals isolated from higher plants in plant protection because they are safer than their synthetic counterparts, effective at reduced doses, and biodegradable without leaving harmful residues [ 31 , 32 , 33 , 34 ]. The use of pathogen-suppressing secondary metabolites (e.g., alkaloids, terpenoids, phenols) is especially important in organic farming systems [ 33 , 35 ], but conventional cultivation methods and agricultural practices utilizing aromatic plants and their residues (i.e., solid biomass and hydrosols) may also be effective in controlling the spread and severity of plant diseases ( Figure 1 ).…”

Section: Introductionmentioning

confidence: 99%

Biocontrol Activity of Aromatic and Medicinal Plants and Their Bioactive Components against Soil-Borne Pathogens

Greff

Sáhó

Lakatos

et al. 2023

Plants

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Soil-borne phytopathogens can have detrimental effects on both cereal and horticultural crops resulting in serious losses worldwide. Due to their high efficiency and easy applicability, synthetic pesticides are still the primary choice in modern plant disease control systems, but stringent regulations and increasing environmental concerns make the search for sustainable alternatives more pressing than ever. In addition to the incorporation of botanicals into agricultural practices, the diversification of cropping systems with aromatic and medicinal plants is also an effective tool to control plant diseases through providing nutrients and shaping soil microbial communities. However, these techniques are not universally accepted and may negatively affect soil fertility if their application is not thoroughly controlled. Because the biocontrol potential of aromatic and medicinal plants has been extensively examined over the past decades, the present study aims to overview the recent literature concerning the biopesticide effect of secondary metabolites derived from aromatic and medicinal plants on important soil-borne plant pathogens including bacteria, fungi, and nematodes. Most of the investigated herbs belong to the family of Lamiaceae (e.g., Origanum spp., Salvia spp., Thymus spp., Mentha spp., etc.) and have been associated with potent antimicrobial activity, primarily due to their chemical constituents. The most frequently tested organisms include fungi, such as Rhizoctonia spp., Fusarium spp., and Phytophthora spp., which may be highly persistent in soil. Despite the intense research efforts dedicated to the development of plant-based pesticides, only a few species of aromatic herbs are utilized for the production of commercial formulations due to inconsistent efficiency, lack of field verification, costs, and prolonged authorization requirements. However, recycling the wastes from aromatic and medicinal plant-utilizing industries may offer an economically feasible way to improve soil health and reduce environmental burdens at the same time. Overall, this review provides comprehensive knowledge on the efficiency of aromatic herb-based plant protection techniques, and it also highlights the importance of exploiting the residues generated by aromatic plant-utilizing sectors as part of agro-industrial processes.

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“…On the other hand, with the advancement of science, more and more unknown attributes of natural products are discovered that improve the quality of life. Currently, natural products are widely used for various purposes such as for functional, antioxidant [14], and antifungal [15] properties and even for catalysis of waste products [16,17].…”

Section: Introductionmentioning

confidence: 99%

Crushed Capsicum chacoense Hunz Fruits: A Food Native Resource of Paraguay with Antioxidant and Anthelmintic Activity

Coronel

Mereles

Caballero

et al. 2022

International Journal of Food Science

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The nutritional composition and toxicity of native plants with food potential like Capsicum chacoense are important for the safe use of populations and could be used as a source for searching for new drug candidates. Infections produced by parasites such as helminths are a public health concern for many countries. The drugs used for treating these diseases are few, and the emergence of resistance is a risk. In this work, the nutritional composition, acute toxicity, antioxidant activity, and anthelmintic activity of crushed C. chacoense fruits were evaluated. The composition was analyzed by standard procedures. Antioxidant activity was evaluated using the ABTS radical and the total phenolic compound (TPC) tests. The toxicity was evaluated on Swiss albino mice by the single-DL50-dose procedure. The anthelmintic activity was tested against Eisenia foetida. The samples presented high levels of dietary fiber (47.05-49.19 g/100 g), proteins (14.43-15.60 g/100 g), and potassium (1708-1733 mg/100 g). In the samples, the absence of acute lethal effects in doses lower than 2000 mg/kg was observed. A rich composition of TPC (517.26-543.32 mg GAE/100 g sample), total carotenoids (125.72-239.57 mg/kg), β-carotene (3.29-5.60 mg/kg), and good TAC was observed (154-158 mM TEAC/g SMTC). The methanolic extracts at the doses tested (2.5 to 40 mg/mL) showed good anthelmintic activity. The presence of alkaloids was demonstrated in the methanolic extract, consistent with the levels of capsaicin (131.85 and 98.80 mg/100 g) and dihydrocapsaicin (80.75 and 63.68 mg/100 g), with significant statistical differences between samples ( p < 0.05 ). These results show that through the chemical composition of this underutilized native resource and good fruit processing procedures, the C. chacoense fruits have a great nutraceutical potential of interest for the food and pharmaceutical industries.

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Screening of ethnomedicinal plants for their antifungal and nematicidal activities against soil-borne phytopathogens

Cited by 5 publications

References 19 publications

Nematicidal activity of <i>Ageratum conyzoides</i> leaf extract against root-knot nematode (<i>Meloidogyne javanica</i>) on eggplant in Jalingo, Nigeria

Nematicidal activity of <i>Ageratum conyzoides</i> leaf extract against root-knot nematode (<i>Meloidogyne javanica</i>) on eggplant in Jalingo, Nigeria

Biocontrol Activity of Aromatic and Medicinal Plants and Their Bioactive Components against Soil-Borne Pathogens

Crushed Capsicum chacoense Hunz Fruits: A Food Native Resource of Paraguay with Antioxidant and Anthelmintic Activity

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