Antifungal activity of essential oils emulsions, their bioactive compounds, and biological control of Fusarium wilt of Majorana hortensis

This investigation was conducted to evaluate the activity of some essential oils emulsions and a biocide (Bio-Cure F) for controlling Fusarium wilt disease of marjoram (Majorana hortensis) caused by Fusarium oxysporum. The fungal filtrate of F. oxysporum isolated from the infected marjoram plants si...

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Main Authors: Ali, A.A.M., Hassanin, M.M.H., Abdel-Rahman, T.F.M., Mergawy, M.M.
Format: Article
Language:English
Published: Egyptian Association for Medical Mycologists (EAMM) 2023-09-01
Series:Novel Research in Microbiology Journal
Subjects:
Online Access:https://nrmj.journals.ekb.eg/article_318807_12faad4a682adf056d2352013f829101.pdf
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author Ali, A.A.M.
Hassanin, M.M.H.
Abdel-Rahman, T.F.M.
Mergawy, M.M.
author_facet Ali, A.A.M.
Hassanin, M.M.H.
Abdel-Rahman, T.F.M.
Mergawy, M.M.
author_sort Ali, A.A.M.
collection DOAJ
description This investigation was conducted to evaluate the activity of some essential oils emulsions and a biocide (Bio-Cure F) for controlling Fusarium wilt disease of marjoram (Majorana hortensis) caused by Fusarium oxysporum. The fungal filtrate of F. oxysporum isolated from the infected marjoram plants significantly decreased the marjoram seed germination and caused wilting of its seedlings. The essential oil emulsions of thyme; basil, and marjoram, inhibited the in vitro fungal growth of F. oxysporum, and significantly suppressed its sporulation and spore germination. However, thyme oil was the most effective one, which completely inhibited the fungal growth at a concentration of 2000 µg/ ml, and completely prevented its sporulation and spore germination. The tested essential oils were analysed for their bioactive components using Gas Chromatography (GC), which were recorded as follows: linalool and eugenol were detected in basil; terpinen-4-ol, β-phyllandrene, and sabinene in marjoram oil, and thymol, 1.8-cineole, ρ-cymene, and α-terpinene in thyme oil. In the greenhouse experiments, Actamyl 70 % wp (wettable powder) and Bio Cure F were the most effective treatments, which significantly decreased the disease incidence and increased the plant growth parameters, compared with the untreated control. On the other hand, all treatments increased the peroxidase and polyphenol oxidase antioxidant enzyme activities, compared with the control; however, Actamyl 70 % (wp) and Bio Cure F had the superiority; recording 1.27 and 1.23 (units/ ml enzyme) for peroxidase, and 0.57 and 0.51 (units/ ml enzyme) for polyphenol oxidase, respectively. The results of the present study indicated the strong antifungal potential of the thyme essential oil. Meanwhile, Bio-Cur F biocide can be effectively used as a potent biofungicide to controlling the marjoram wilt incited by F. oxysporum.
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spelling doaj.art-9f85b98d2626492a82df82594c2800f62023-09-26T22:23:18ZengEgyptian Association for Medical Mycologists (EAMM)Novel Research in Microbiology Journal2537-02862537-02942023-09-01752138215110.21608/nrmj.2023.318807Antifungal activity of essential oils emulsions, their bioactive compounds, and biological control of Fusarium wilt of Majorana hortensisAli, A.A.M.0Hassanin, M.M.H.1Abdel-Rahman, T.F.M.2Mergawy, M.M.3Plant Pathology Department, Faculty of Agriculture and Natural Resources, Aswan University, Aswan, EgyptPlant Pathology Research Institute, Agricultural Research Center (ARC), Giza, EgyptPlant Pathology Research Institute, Agricultural Research Center (ARC), Giza, EgyptCentral Laboratory of Organic Agriculture (CLOA), Agricultural Research Center (ARC), Giza, EgyptThis investigation was conducted to evaluate the activity of some essential oils emulsions and a biocide (Bio-Cure F) for controlling Fusarium wilt disease of marjoram (Majorana hortensis) caused by Fusarium oxysporum. The fungal filtrate of F. oxysporum isolated from the infected marjoram plants significantly decreased the marjoram seed germination and caused wilting of its seedlings. The essential oil emulsions of thyme; basil, and marjoram, inhibited the in vitro fungal growth of F. oxysporum, and significantly suppressed its sporulation and spore germination. However, thyme oil was the most effective one, which completely inhibited the fungal growth at a concentration of 2000 µg/ ml, and completely prevented its sporulation and spore germination. The tested essential oils were analysed for their bioactive components using Gas Chromatography (GC), which were recorded as follows: linalool and eugenol were detected in basil; terpinen-4-ol, β-phyllandrene, and sabinene in marjoram oil, and thymol, 1.8-cineole, ρ-cymene, and α-terpinene in thyme oil. In the greenhouse experiments, Actamyl 70 % wp (wettable powder) and Bio Cure F were the most effective treatments, which significantly decreased the disease incidence and increased the plant growth parameters, compared with the untreated control. On the other hand, all treatments increased the peroxidase and polyphenol oxidase antioxidant enzyme activities, compared with the control; however, Actamyl 70 % (wp) and Bio Cure F had the superiority; recording 1.27 and 1.23 (units/ ml enzyme) for peroxidase, and 0.57 and 0.51 (units/ ml enzyme) for polyphenol oxidase, respectively. The results of the present study indicated the strong antifungal potential of the thyme essential oil. Meanwhile, Bio-Cur F biocide can be effectively used as a potent biofungicide to controlling the marjoram wilt incited by F. oxysporum.https://nrmj.journals.ekb.eg/article_318807_12faad4a682adf056d2352013f829101.pdfmarjorambio-cur fthyme essential oilfusarium oxysporum
spellingShingle Ali, A.A.M.
Hassanin, M.M.H.
Abdel-Rahman, T.F.M.
Mergawy, M.M.
Antifungal activity of essential oils emulsions, their bioactive compounds, and biological control of Fusarium wilt of Majorana hortensis
Novel Research in Microbiology Journal
marjoram
bio-cur f
thyme essential oil
fusarium oxysporum
title Antifungal activity of essential oils emulsions, their bioactive compounds, and biological control of Fusarium wilt of Majorana hortensis
title_full Antifungal activity of essential oils emulsions, their bioactive compounds, and biological control of Fusarium wilt of Majorana hortensis
title_fullStr Antifungal activity of essential oils emulsions, their bioactive compounds, and biological control of Fusarium wilt of Majorana hortensis
title_full_unstemmed Antifungal activity of essential oils emulsions, their bioactive compounds, and biological control of Fusarium wilt of Majorana hortensis
title_short Antifungal activity of essential oils emulsions, their bioactive compounds, and biological control of Fusarium wilt of Majorana hortensis
title_sort antifungal activity of essential oils emulsions their bioactive compounds and biological control of fusarium wilt of majorana hortensis
topic marjoram
bio-cur f
thyme essential oil
fusarium oxysporum
url https://nrmj.journals.ekb.eg/article_318807_12faad4a682adf056d2352013f829101.pdf
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AT abdelrahmantfm antifungalactivityofessentialoilsemulsionstheirbioactivecompoundsandbiologicalcontroloffusariumwiltofmajoranahortensis
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