Efficacy of wild medicinal plant extracts against predominant seed-borne fungi of broad bean cultivars

Baka, Zakaria A. M.

doi:10.1556/038.50.2015.1.5

Cited by 10 publications

(2 citation statements)

References 29 publications

(25 reference statements)

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“…Post-harvest loss of fruits due to the fungal infection is considered a severe global problem in particular the developing countries (Baka et al, 2015) In support to the present results, Amiri and Bompeix (2005) reported numerous Penicillium spp. associated with post-harvest fruit spoilage.…”

Section: Discussionsupporting

confidence: 88%

Bio-Control and Ultrastructure of Post-Harvest Pathogenic Fungi of Apple Fruits

Serag¹,

Baka²,

Farg³

et al. 2022

J microb biotech food sci

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Post-harvest pathogenic fungi of fruits cause huge losses. Apples fruits are important for consumers. The antifungal activity of aqueous and ethanolic extracts of eleven medicinal plants at fives concentrations (0, 1, 3, 5, 10%; w/v) were tested against Alternaria alplateternata. Inhibition of fungal growth, along with the lower D50 values of the ethanolic extract of the tested plants compared to those of the aqueous extract exhibited more efficient antifungal activity. The ultrastructure of the fungal hyphae without treatment (control) showed normal hyphae enclosed by a wall composed of three layers in which the middle layer is more electron- denser than the outer and inner layers. An intact plasma membrane was also observed. In addition, an electron-dense material was observed at the tip of the hyphae. The cytoplasm contained several organelles. On the other hand, the treated hyphae with the ethanolic extracts of the mixture of E. citriodora and T. capitatus exhibited many changes as noted in both T.S and L.S such as the increase of the electron density of the outer layer of the hyphal wall more than the control, also numerous big lipid bodies were almost occupied the cytoplasm. Eucalyptus citridora and Thymus capitatus had a potential as antifungal agent for biocontrol of post-harvest pathogenic fungi of tested apple fruits.

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Section: Discussionsupporting

confidence: 88%

Bio-Control and Ultrastructure of Post-Harvest Pathogenic Fungi of Apple Fruits

Serag¹,

Baka²,

Farg³

et al. 2022

J microb biotech food sci

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“…Between these options are biological plant products, which are bio-efficacious, biodegradable, cost-effective and safe for the environment. Many investigators used biological plant products to control plant pathogens [3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Silver Nanoparticles Using Pomegranate and Orange Peel Extracts and Their Antifungal Activity against Alternaria solani, the Causal Agent of Early Blight Disease of Tomato

Mostafa

Alamri

Alrumman

et al. 2021

Plants

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This study aimed to synthesize silver nanoparticles (AgNPs) by pomegranate and orange peel extracts using a low concentration of AgNO3 solution to controlearly blight of tomato caused by Alternaria solani. The pathogen was isolated from infected tomato plants growing in different areas of Saudi Arabia. The isolates of this pathogen were morphologically and molecularly identified. Extracts from peels of pomegranate and orange fruits effectively developed a simple, quick, eco-friendly and economical method through a synthesis of AgNPs as antifungal agents against A. solani. Phenolic content in the pomegranate peel extract was greater than orange peel extract. Phenolic compounds showed a variation of both peel extracts as identified and quantified by High-Performance Liquid Chromatography. The phenolic composition displayed variability as the pomegranate peel extract exhibited an exorbitant amount of Quercitrin (23.62 mg/g DW), while orange peel extract recorded a high amount of Chlorogenic acid (5.92 mg/g DW). Biosynthesized AgNPs were characterized using UV- visible spectroscopy which recorded an average wavelength of 437 nm and 450 nm for pomegranate and orange peels, respectively. Fourier-transform infrared spectroscopy exhibited 32x73.24, 2223.71, 2047.29 and 1972.46 cm−1, and 3260.70, 1634.62, 1376.62 and 1243.76 cm−1 for pomegranate and orange peels, respectively. Transmission electron microscopy showed spherical shape of nanoparticles. Zetasizer analysis presented negative charge values; −16.9 and −19.5 mV with average particle sizes 8 and 14 nm fin case of pomegranate and orange peels, respectively. In vitro, antifungal assay was done to estimate the possibility of biosynthesized AgNPs and crude extracts of fruit peels to reduce the mycelial growth of A. solani. AgNPs displayed more fungal mycelial inhibition than crude extracts of two peels and AgNO3. We recommend the use of AgNPs synthesized from fruit peels for controlling fungal plant pathogens and may be applied broadly and safely in place by using the chemical fungicides, which display high toxicity for humans.

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Synergism: biocontrol agents and biostimulants in reducing abiotic and biotic stresses in crop

Anuar

Hashim

et al. 2023

World J Microbiol Biotechnol

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Efficacy of wild medicinal plant extracts against predominant seed-borne fungi of broad bean cultivars

Cited by 10 publications

References 29 publications

Bio-Control and Ultrastructure of Post-Harvest Pathogenic Fungi of Apple Fruits

Bio-Control and Ultrastructure of Post-Harvest Pathogenic Fungi of Apple Fruits

Green Synthesis of Silver Nanoparticles Using Pomegranate and Orange Peel Extracts and Their Antifungal Activity against Alternaria solani, the Causal Agent of Early Blight Disease of Tomato

Synergism: biocontrol agents and biostimulants in reducing abiotic and biotic stresses in crop

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