Assessment of the antifungal activity of Nicotiana glauca Graham aqueous and organic extracts against some pathogenic and antagonistic fungi

2012 ◽  
Vol 6 (22) ◽  
Author(s):  
Asma Rinez
Keyword(s):  
Antifungal Activity ◽  
Nicotiana Glauca ◽  
Antagonistic Fungi ◽  
Organic Extracts

scholarly journals Antifungal activity of Datura metel L. organic and aqueous extracts on some pathogenic and antagonistic fungi

2013 ◽  
Vol 7 (16) ◽  
pp. 1605-1612 ◽  
Author(s):  
Rinez Asma ◽  
Daami Remadi Mejda ◽  
Ladhari Afef ◽  
Omezzine Faten ◽  
Rinez Imen ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Aqueous Extracts ◽  
Antagonistic Fungi ◽  
Datura Metel

scholarly journals EVALUATION OF ANTIFUNGAL POTENTIAL OF ALLIUM AMPELOPRASUM AGAINST FUNGAL PHYTOPATHOGENS

2018 ◽  
Vol 11 (11) ◽  
pp. 129
Author(s):  
Shahid Khan ◽  
Amandeep Kaur ◽  
Neeta Raj Sharma
Keyword(s):  
Chemical Composition ◽  
Antifungal Activity ◽  
Inhibitory Concentration ◽  
Economic Importance ◽  
Allium Ampeloprasum ◽  
Water Extracts ◽  
Maximum Inhibition ◽  
Antifungal Potential ◽  
Organic Extracts ◽  
Fungal Phytopathogens

Objective: Present study evaluates the antifungal potential of Allium ampeloprasum extracts against two phytopathogens of economic importance, namely Alternaria triticina and Magnaporthe oryzae which are found to be one of the greatest threats to wheat and rice crop worldwide.Methods: Four different organic solvents, i.e., water, methanol, acetone, and hexane were used for extract preparation based on the increasing order of polarity. Further, different concentrations of these extracts were used to perform a quantitative assay for measuring the antifungal activity of extracts. Two-way analysis of variance was used to statistically analyze the results through GraphPad Prism v. 7.00.Results: The best results were shown by water extracts with a maximum inhibition of 99.39±0.2% against A. triticina and 99.39±2.2% against M. oryzae. Water extracts gave minimal inhibitory concentration 90 values at 9.94 μg/mL against M. oryzae and at 16.73 μg/mL against A. triticina.Conclusion: Water extracts of A. ampeloprasum have relatively higher potential for being used as an antifungal agent as compared to other organic extracts used in this study. Further study on the chemical composition of A. ampeloprasum water extracts can reveal potent anti-phytopathogenic fungal compounds which can be used to develop biofungicides.

scholarly journals Effects of Medicinal Plant Extracts and Photosensitization on Aflatoxin Producing Aspergillus flavus (Raper and Fennell)

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Loise M. Njoki ◽  
Sheila A. Okoth ◽  
Peter M. Wachira
Keyword(s):  
Antifungal Activity ◽  
Medicinal Plant ◽  
Plant Extracts ◽  
Spinacia Oleracea ◽  
Aflatoxin Production ◽  
Prunus Africana ◽  
Toxigenic Fungi ◽  
Medicinal Plant Extracts ◽  
Organic Extracts ◽  
Zones Of Inhibition

This study was undertaken with an aim of exploring the effectiveness of medicinal plant extracts in the control of aflatoxin production. Antifungal properties, photosensitization, and phytochemical composition of aqueous and organic extracts of fruits from Solanum aculeastrum, bark from Syzygium cordatum, and leaves from Prunus africana, Ocimum lamiifolium, Lippia kituiensis, and Spinacia oleracea were tested. Spores from four-day-old cultures of previously identified toxigenic fungi, UONV017 and UONV003, were used. Disc diffusion and broth dilution methods were used to test the antifungal activity. The spores were suspended in 2 ml of each extract separately and treated with visible light (420 nm) for varying periods. Organic extracts displayed species and concentration dependent antifungal activity. Solanum aculeastrum had the highest zones of inhibition diameters in both strains: UONV017 (mean = 18.50±0.71 mm) and UONV003 (mean = 11.92±0.94 mm) at 600 mg/ml. Aqueous extracts had no antifungal activity because all diameters were below 8 mm. Solanum aculeastrum had the lowest minimum inhibitory concentration at 25 mg/ml against A. flavus UONV017. All the plant extracts in combination with light reduced the viability of fungal conidia compared with the controls without light, without extracts, and without both extracts and light. Six bioactive compounds were analyzed in the plant extracts. Medicinal plant extracts in this study can control conidia viability and hence with further development can control toxigenic fungal spread.

scholarly journals Antifungal activity of Conocephalum conicum(L) Dumort. (Marchantiophyta) against Fusarium oxysporum f. sp. lycopersici

2021 ◽  
Author(s):  
Kavita Negi ◽  
Preeti Chaturvedi
Keyword(s):  
Antifungal Activity ◽  
Fusarium Oxysporum ◽  
Methanol Extract ◽  
Antifungal Compounds ◽  
Disc Diffusion ◽  
Conocephalum Conicum ◽  
Organic Extracts ◽  
High Antifungal Activity ◽  
Broth Dilution ◽  
Production Losses

Tomato, a high valuevegetable crop, suffers huge production losses in tropics due to a wilt disease caused by Fusarium oxysporum f. sp. lycopersici . Present study was undertaken to find an effective biocontrol method to check fusarium wilt in order to curb the losses suffered by the crop growers. Organic extracts(acetone, methanol/ethanol) of thalloid bryophytes ( Conocephalumconicum (L.) Dumort. and Marchantiapapillata Raddi subsp. grossibarba (Steph.) Bischl. ) were tested against F. oxysporum f. sp. lycopersici using disc diffusion and micro broth dilution assay.Methanol extract of C.conicum (L.) Dumort. (CCDM) showed significantly high antifungal activity (85.5% mycelial inhibition; 31.25µg/mL MIC and 125µg/mL MFC).Potential of methanol extract was und, Riccardin C constituting 50% of the total number of compoundstested in a glasshouse experiment on tomato, which illustrated the efficacy of the plant extract to control the fusarial wilt. Morphological and ultrastructural alterationsin CCDM treated fusarium myceliawere observed in scanning electron microscopy. GC-MS analysis of CCDM extract showed the presence of51 constituents, and the dominant compounds werebis (bibenzyl), acyclic alkanes, fatty acids, sesquiterpenpoids and steroids. The study suggested that C. conicum being an efficient source of Riccardin C like antifungal compounds provides a potent and eco-friendly alternative to conventional fungicides in vegetables.

scholarly journals Antifungal activity of Psidium guajava organic extracts against dermatophytic fungi

2012 ◽  
Vol 6 (41) ◽  
pp. 5435-5438 ◽  
Author(s):  
Beatriz Padroacute n Maacute rquez ◽  
Ezequiel Viveros Valdez ◽  
Or ◽  
Azucena ay Caacute rdenas ◽  
Pilar Carranza Rosales
Keyword(s):  
Antifungal Activity ◽  
Psidium Guajava ◽  
Dermatophytic Fungi ◽  
Organic Extracts

scholarly journals Antimicrobial, antioxidant and cytotoxic properties of Chenopodium glaucum L.

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0255502
Author(s):  
Safi Ullah Khan ◽  
Faizan Ullah ◽  
Sultan Mehmood ◽  
Shah Fahad ◽  
Arsalan Ahmad Rahi ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Ethyl Acetate ◽  
Aqueous Extract ◽  
Methanol Extract ◽  
Inhibition Zone ◽  
Hexane Extract ◽  
Gas Chromatography Mass Spectrometry ◽  
Methanol Extracts ◽  
Organic Extracts ◽  
Minor Compounds

We evaluated phytochemical composition, antibacterial, antifungal, anti-oxidant and cytotoxic properties of aqueous (water) and organic extracts (methanol, ethyl acetate and n-hexane) of Chenopodium glaucum. Highest phenolic content 45 mg gallic acid equivalents (GAE)/g d.w was found in aqueous extract followed by ethyl acetate (41mg GAE/g d.w) and methanol extract (34.46 mg GAE/g d.w). Antibacterial potential of aqueous and organic extracts of C. glaucum was examined against Acinetobacter baumannii, Klebsiella pneumoniae, Escherichia coli and Staphylococcus epidermidis. The aqueous, methanolic, ethyl acetate, and n-hexane extract showed antibacterial activity against A. baumannii, K. pneumoniae, E. coli and S. epidermidis. However, against A. baumannii significantly higher inhibition zone (19 mm and 18.96 mm respectively) was shown by ethyl acetate and methanol extracts. Aqueous extract possessed highest growth inhibition (11 mm) against E. coli. Aqueous, ethyl acetate and methanol extracts showed 9 mm, 10 mm, and 10.33 mm zone of inhibition against the K. pneumoniae. For antifungal activity, the extracts were less effective against Aspergillus niger but showed strong antifungal activity against Aspergillus flavus (A. flavus). The antioxidant activity was measured as DPPH (2, 2-diphenyl-1-picrylhydrazyl), H2O2 and ABTS (2, 2’-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) scavenging activity of free radicals. All the organic extracts of C. glaucum possessed ABTS, DPPH and H2O2 scavenging properties. The highest cytotoxic activity measured as half maximal inhibitory concentration (IC50) against human lungs carcinoma cells was recorded for methanolic (IC50 = 16 μg/mL) and n-hexane (IC50 = 25 μg/mL) extracts, respectively. The Gas chromatography–mass spectrometry (GC-MS) analysis showed 4 major and 26 minor compounds in n-hexane extract and 4 major and 7 minor compounds in methanol extract of the C. glaucum. It is concluded that aqueous and organic extracts of C. glaucum would be potential therapeutic agents and could be exploited on a pilot scale to treat human pathogenic diseases.

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