Antifungal activity of some essential oil nanoemulsions against Saprolegniasis in rainbow trout (Oncorhynchus mykiss) eggs

Özil, Öznur; Diler, Öznur; Nazıroğlu, Mevlüt

doi:10.1007/s10499-022-00897-5

Cited by 2 publications

(1 citation statement)

References 35 publications

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“…In recent decades, saprolegniasis has become an increasingly serious problem in aquaculture, especially after the banning of malachite green (previously a widely used drug for Saprolegnia infection) in the European Union in 2002 due to its toxicity and carcinogenic effects (Elameen et al., 2021; Shin et al., 2017; Stammati et al., 2005; Sudova et al., 2007; Tedesco et al., 2021, 2022). Various new antifungal agents and alternative methods currently used to combat saprolegniasis commonly are not sufficiently effective in treating this infection (Ben Khemis et al., 2016; Caruana et al., 2012; Montenegro et al., 2018; Nardoni et al., 2019; Noga, 2010; Özil et al., 2022; Yao et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

Diversity of fungus‐like stramenopilous organisms (Oomycota) in Lithuanian freshwater aquaculture: Morphological and molecular analysis, risk to fish health

Markovskaja,

Iršėnaitė,

Kačergius

et al. 2023

Journal of Fish Diseases

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The present work is the first comprehensive study of fungus‐like stramenopilous organisms (Oomycota) diversity in Lithuanian fish farms aimed at proper identification of saprolegniasis pathogens, which is important for water quality control, monitoring infection levels and choosing more effective treatments for this disease in aquaculture. Pathogenic to fish, Saprolegnia and other potentially pathogenic water moulds were isolated from adult fish, their eggs, fry and from water samples. All detected isolates were examined morphologically and confirmed by sequence‐based molecular methods. A total of eight species belonging to the genera Saprolegnia, Achlya, Newbya and Pythium were identified. Four species (S. parasitica, S. ferax, S. australis and S. diclina) were found to be the main causative agents of saprolegniasis in Lithuania. S. parasitica and S. ferax dominated both in hatcheries and open fishponds, accounting for 66.2% of all isolates. S. parasitica was isolated from all farmed salmonid fish species as well as from the skin of Cyprinus carpio, Carassius carassius and Perca fluviatilis. S. australis was isolated from water and once from the skin of Oncorhynchus mykiss, and S. diclina was detected only once on the skin of Salmo salar fish. In addition, Achlya ambisexualis, Saprolegnia anisospora and Newbia oligocantha isolated during this study are noted as a possible source of saprolegniasis. The results of this study are relevant for assessing the risk of potential outbreaks of saprolegniasis or other saprolegnia‐like infection in Lithuanian freshwater aquaculture.

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Section: Introductionmentioning

confidence: 99%

Diversity of fungus‐like stramenopilous organisms (Oomycota) in Lithuanian freshwater aquaculture: Morphological and molecular analysis, risk to fish health

Markovskaja,

Iršėnaitė,

Kačergius

et al. 2023

Journal of Fish Diseases

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Phytochemical Composition and Antimicrobial Activity of Essential Oil from the Leaves of Artemisia vulgaris L.

et al. 2023

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Artemisia vulgaris is an enormously useful aromatic plant known for its insecticidal, antifungal, parasiticidal, and medicinal values. The main aim of this study is to investigate phytochemical contents and the potential antimicrobial activities of Artemisia vulgaris essential oil (AVEO) from the fresh leaves of A. vulgaris grown in Manipur. The AVEO isolated by hydro-distillation from A. vulgaris were analyzed by gas chromatography/mass spectrometry and solid-phase microextraction-GC/MS to describe their volatile chemical profile. There were 47 components identified in the AVEO by GC/MS, amounting to 97.66% of the total composition, while 97.35% were identified by SPME-GC/MS. The prominent compounds present in AVEO analyzed by direct injection and SPME methods are found to be eucalyptol (29.91% and 43.70%), sabinene (8.44% and 8.86%), endo-Borneol (8.24% and 4.76%), 2,7-Dimethyl-2,6-octadien-4-ol (6.76% and 4.24%), and 10-epi-γ-Eudesmol (6.50% and 3.09%). The consolidated component in the leaf volatiles comes to the terms of monoterpenes. The AVEO exhibits antimicrobial activities against fungal pathogens such as Sclerotium oryzae (ITCC 4107) and Fusarium oxysporum (MTCC 9913) and bacterial cultures such as Bacillus cereus (ATCC 13061) and Staphylococcus aureus (ATCC 25923). The percent inhibition of AVEO against the S. oryzae and F. oxysporum was found up to 50.3% and 33.13%, respectively. The MIC and MBC of the essential oil tested for B. cereus and S. aureus were found to be (0.3%, 0.63%) and (0.63%, 2.5%), respectively. Finally, the results revealed that the AVEO characterized by the hydro-distillation and SPME extraction yielded the same chemical profile and showed potent antimicrobial activities. Further research into A. vulgaris’s antibacterial properties can be performed in order to use it as a source for natural antimicrobial medications.

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Antifungal activity of some essential oil nanoemulsions against Saprolegniasis in rainbow trout (Oncorhynchus mykiss) eggs

Cited by 2 publications

References 35 publications

Diversity of fungus‐like stramenopilous organisms (Oomycota) in Lithuanian freshwater aquaculture: Morphological and molecular analysis, risk to fish health

Diversity of fungus‐like stramenopilous organisms (Oomycota) in Lithuanian freshwater aquaculture: Morphological and molecular analysis, risk to fish health

Phytochemical Composition and Antimicrobial Activity of Essential Oil from the Leaves of Artemisia vulgaris L.

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