Efficacy of different treatments available against bacterial pathogens in fish

Hajam, Younis Ahmad; Kumar, Rajesh; Rani, Raksha; Sharma, Preeti; Diksha,

doi:10.1016/b978-0-323-85624-9.00013-0

Cited by 5 publications

(4 citation statements)

References 93 publications

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“…Fish are an important food source for humans because of their high nutritional value in terms of essential micronutrients, proteins, lipids, and vitamins. 1 However, fish diseases remain a major threat to the aquaculture industry, inflicting high mortality rates due to the occurrence of microbial infection, including fungal, viral, and bacterial infections. 2 Bacterial infections, such as streptococcosis and enteric septicemia of catfish (ESC), caused by Streptococcus iniae (S. iniae), Streptococcus parauberis (S. parauberis), and Edwardsiella ictalurid (E. ictalurid), respectively, are common in fish farms and can cause heavy economic losses to the aquaculture industry.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Fish are an important food source for humans because of their high nutritional value in terms of essential micronutrients, proteins, lipids, and vitamins . However, fish diseases remain a major threat to the aquaculture industry, inflicting high mortality rates due to the occurrence of microbial infection, including fungal, viral, and bacterial infections .…”

Section: Introductionmentioning

confidence: 99%

“…aThe assignments are based on 1 H,13 C, HSQC, HMBC,1 H− 1 H COSY. Journal of Agricultural and Food Chemistry pubs.acs.org/JAFC Article https://doi.org/10.1021/acs.jafc.2c09141 J. Agric.…”

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confidence: 99%

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Discovery of Novel Bactericides from Aspergillus alabamensis and Their Antibacterial Activity against Fish Pathogens

Zhu

Chen

et al. 2023

J. Agric. Food Chem.

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The emerging outbreak of bacterial diseases is a major challenge for the aquaculture industry. The development of new antibacterial agents from natural resources to curb fish bacterial diseases in aquaculture is becoming increasingly popular. In this study, eight new benzoic acid-containing alkaloids, asperalin A–F (1–6), asperalumazine A (7), and N-(3-acetamidopropyl)-3,4-dihydroxybenzamide (8), along with four known compounds (9–12) were isolated and identified from a seagrass-derived Aspergillus alabamensis. Their chemical structures were established on the basis of extensive spectroscopic analyses (including HRESIMS, 1D and 2D NMR spectroscopy), NMR computational methods, and electronic circular dichroism (ECD) calculations. Compounds 1–6 exhibited moderate or potent inhibitory activities against at least one fish pathogenic bacterium, among Edwardsiella ictalurid, Streptococcus iniae, and Streptococcus parauberis, and these compounds represent the first report of the coupling of dihydroquinolone alkaloids with benzoic acid derivatives. Compounds 3 and 4 showed strong activities against Staphylococcus aureus, S. iniae, and S. parauberis, with an MIC value of 10.1, 5.0, and 10.1 μM, respectively. Compound 5, an N-alkylated product of 4, exhibited the strongest inhibitory effects against S. iniae, with an MIC value of 2.2 μM. Notably, compound 6, as a new natural bactericide, showed moderate to potent inhibitory activity toward all strains tested, including one Gram-negative bacterium E. ictalurid (10.9 μM, MIC) and four Gram-positive bacteria S. iniae (43.6 μM, MIC), S. aureus (21.8 μM, MIC), S. parauberis (87.3 μM, MIC), and Bacillus subtilis (21.8 μM, MIC). Compound 7 represents the first example of a lumazine derivative directly coupled to a benzoic acid moiety by a hydroxymethyl group.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Discovery of Novel Bactericides from Aspergillus alabamensis and Their Antibacterial Activity against Fish Pathogens

Zhu

Chen

et al. 2023

J. Agric. Food Chem.

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“…Tutorial and facilitation styles vary and may have a profound impact on the outcome and the group's ability to continue the process on its own" [20]. The facilitative role of teachers in supporting their students' learning has been widely investigated and recognized as key to improving pedagogical practices [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Aligning HE Pedagogical Innovation with VET, Industry, and Research Partnerships: Insights on the Demola Portugal Initiative

Amante

Fernandes

2023

Education Sciences

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Academia–industry collaboration has been around for some time, but there has been a shift in both the education and workforce settings to work closely together, coordinating initiatives across all sectors, namely higher education (HE), vocational education and training (VET), and industry, in an attempt to mutually drive innovation, provide opportunities to go from concept to action, encourage entrepreneurship, improve ICT use, and other equally important hard and soft skills, aiming to bridge the existing gap between the teaching–learning arena and the business world. Aware that the VET sector, HE, the government, and industry should be devoted to forging partnerships considered key to the development of research, leading to quality, more business, and ultimately, the economic and social well-being of society, a Consortium of 14 Portuguese Polytechnic Institutions engaged in an innovative pedagogical training program, “Learning based on co-creation processes,” a project within the Demola Portugal Initiative (2021–2023), and at the Polytechnic Institute of Viseu (IPV) with reference No. POCH-04-5267-FSE-000818. This training program, with its active methodologies, is then put into practice through the “Link Me Up—1000 Ideias” project. In our study, we will focus on the needs, expectations, and experiences of the IPV teaching staff and the vocational schoolteachers that participated in the training course. Through the analysis of questionnaires and e-portfolios of the participants in the first two editions (January–June 2021 and September 2021–February 2022), we intend to answer the following questions: (i) Which facilitation skills can be meaningfully used by the teachers participating in the (Demola) Pedagogical Innovation Training course at IPV? (ii) Which tools/platforms can enhance the students’ learning and collaboration among different team members, company representatives, and trainees/facilitators? The data collected confirm that the Demola Portugal Initiative provides an effective approach to bring HE closer to the labor market and keep pace with progress and innovation.

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