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Your search keyword '"Chebli, Bouchra"' showing total 3 results
Start Over Author "Chebli, Bouchra" Topic antifungal agents
3 results on '"Chebli, Bouchra"'

1. Chemical composition and antifungal activity of essential oils of seven Moroccan Labiatae against Botrytis cinerea Pers: Fr

Author

Chebli Bouchra, L. M. Idrissi Hassani., Mohamed Achouri, and M. Hmamouchi

Subjects
Antifungal Agents, food.ingredient, Colony Count, Microbial, Gas Chromatography-Mass Spectrometry, law.invention, Inhibitory Concentration 50, chemistry.chemical_compound, food, law, Drug Discovery, Botany, Oils, Volatile, Carvacrol, Thymol, Mycelium, Essential oil, Botrytis, Botrytis cinerea, Pharmacology, Lamiaceae, biology, Traditional medicine, biology.organism_classification, Morocco, chemistry, Mentha pulegium
Abstract

Essential oils of seven Moroccan Labiatae were chemically analysed by GC-MS and evaluated for their in vitro antifungal activity against Botrytis cinerea. Among them, Origanum compactum and Thymus glandulosus greatly inhibited the growth of the mycelium. The inhibition of Botrytis cinerea was 100% for both oils at 100 ppm, while the IC(50)s were 35.1 and 79.2 ppm, respectively. Mentha pulegium exhibited moderate activity at 250 ppm since the inhibition of the mycelial growth was 58.5% and the IC(50) was 233.5 ppm. The main constituents of the studied oils were also examined. Thymol and carvacrol that are the two main constituents of Thymus glandulosus and Origanum compactum exhibited the strongest antifungal activity with 100% of inhibition at 100 ppm, respectively.

Published
2003

2. Chemical composition and antifungal activity of Bubonium imbricatum volatile oil.

Author

Alilou, Hakim, Akssira, Mohamed, Hassani, L. Mina Idrissi, Chebli, Bouchra, El Hakmoui, Ahmed, Mellouki, Fouad, Rouhi, Rachida, Boira, Herminio, and Blázquez, Maria Amparo

Subjects
ANTIFUNGAL agents, ESSENTIAL oils, ENDEMIC plants, PLANT chemical analysis, BOTANICAL chemistry, MYCELIUM, HYPHAE of fungi, CITRUS
Abstract

The chemical composition of the essential oil extracted from the aerial parts of Bubonium imbricatum, an endemic plant of southern Morocco, was analysed. GC-MS showed 51 compounds, representing 60.2% of the total oil. Thymol isobutyrate (18.3%) and 2,5-dimethoxy-p-cymene (16.2%) were the major constituents of the oil. The oil was tested for antifungal activity in mycelial growth inhibition tests in vitro against three agricultural pathogenic fungi: Penicillium digitatum, P. expansum and Botrytis cinerea. The oil at 1000 ppm was highly effective against mycelial growth of P. digitatum with 99% inhibition. For P. expansum and B. cinerea the percentage of mycelial growth inhibition at 1000 ppm was respectively 87.2% and 87.8%. At 2000 ppm the oil was 100% effective in controlling mycelial growth of all three fungi. B. imbricatum essential oil was also tested at different concentrations on citrus fruits (Citrus reticulata Blanco cv. Nules) inoculated with P. digitatum (105 conidia ml-1). The oil had a fungistatic or fungicidal effect on C. reticulata. [ABSTRACT FROM AUTHOR]

Published
2008

3. Antifungal effectiveness of fungicide and peroxyacetic acid mixture on the growth of Botrytis cinerea.

Author

Ayoub, Fatima, Ben oujji, Najwa, Chebli, Bouchra, Ayoub, Mohamed, Hafidi, Athman, Salghi, Rachid, and Jodeh, Shehdeh

Subjects
*BOTRYTIS cinerea, *FUNGICIDES, *PERACETIC acid, *ANTIFUNGAL agents, *PESTICIDES, *PATHOGENIC microorganisms
Abstract

In the attempt to reduce the negative impacts of chemical pesticides on environment and consumer's health, a new plant treatment practice minimizing the amount of pesticides needed during pests and diseases treatments has been developed. Our approach is based on combining the biocide effects of fungicide with the peroxyacetic acid (PAA) one. In this paper, we focused on the in vitro study of the antifungal activity of this combination against Botrytis cinerea , the most redoubtable threat of tomatoes plants in Morocco. First, different concentrations of a peroxyacetic acid product (PERACLEAN ® 5) and two commercially available fungicides SWITCH and SIGNUM were tested separately for their inhibitory effects on the mycelial growth and spores germination of B. cinerea . 100% inhibition of fungal growth was achieved using 16.77 and 14.47 μg/ml of SIGNUM and SWITCH respectively and 1.5% of PERACLEAN ® 5. When combined with 0.5% of the peroxyacetic acid mixture (PERACLEAN ® 5), the pesticides 100% effective concentrations decreased to 0.5 μg/ml for both pesticides. Hence, this approach allowed us to suppress the pathogen while minimizing the amounts of applied fungicides by more than 95%. [ABSTRACT FROM AUTHOR]

Published
2017
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