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Sugiyama, Akihiro; Kusuda, Riichi

doi:10.3147/jsfp.16.15

Cited by 32 publications

(3 citation statements)

References 12 publications

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“…Gross pathology observed in the examined fish samples bear great similarities to previous reports of staphylococcal infections in farmed freshwater or marine fishes (Akayli et al, 2011;Huang et al, 1999;Kubilay & Ulukoy, 2004;Timur & Akayli, 2003;Turgay, 2009;Wang et al, 1996). However, advanced exophthalmos and loss of eyes (Huang et al, 1999;Kusuda & Sugiyama, 1981;Timur & Akayli, 2003) was not observed in field samples. Clinical symptoms also showed variations depending on the pathogen evolved in the infection case and interestingly, symptoms that are related to the etymological root of the pathogen were detected.…”

Section: Discussionmentioning

confidence: 98%

An initial survey on the occurrence of staphylococcal infections in Turkish marine aquaculture (2013–1014)

Çanak

Timur

2020

J Appl Ichthyol

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A tentative survey on selected marine fish farms was undertaken to delineate the extent to which infections with Staphylococcus species occur in Turkish aquaculture systems. To determine the presence and the distribution of fish pathogenic staphylococci, representative farm types such as marine cages as well as inland pond farms working with saline‐ground water and a large hatchery were selected. Field sampling was performed in a total of 13 commercial fish farms that are located in the most‐popular aquaculture sites of Turkey. Samples were taken between October 2013 and August 2014. Almost all size classes of the most commonly marine cultured fish species in Turkey were investigated, including Dicentrarchus labrax, Sparus aurata, Argyrosomus regius, Diplodus puntazzo, Dentex dentex, Onchorhynchus mykiss and Salmo labrax. After a visual check, specimens with various clinical signs were sampled for bacteriological and histopathological investigations. Mixed infections of staphylococci along with Vibrio and Aeromonas representatives were detected in Dicentrarchus labrax, Sparus aurata and Diplodus puntazzo samples obtained from 7 farms. The following pathogens were identified: Staphylococcus. epidermidis, S. aureus, S. capitis subsp. capitis, S. lentus, S. hominis subsp. hominis and S. sciuri subsp. sciuri. Main clinical and histopathological effects of the infections in fishes were revealed. The pathogenicity of some isolates was confirmed with in vivo pathogenicity assay and SDS‐PAGE analysis.

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Section: Discussionmentioning

confidence: 98%

An initial survey on the occurrence of staphylococcal infections in Turkish marine aquaculture (2013–1014)

Çanak

Timur

2020

J Appl Ichthyol

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“…17 The most reliable available published data suggests a survival to discharge range between 1% and 20%. 18 In this paper, we briefly review the existing constitutional focus on -and problems with -the viability construct and we further argue that although the question is a novel one with few clear precedents, the best reading of the existing Supreme Court case law is that even if fetal pain exists at 20 weeks postfertilization -itself a speculative claim -that should not suffice to make this new statutory prohibition on abortion constitutional.…”

Section: Existing Constitutional Doctrine and The Trouble With Viabilitymentioning

confidence: 99%

Fetal Pain, Abortion, Viability, and the Constitution

Cohen¹,

Sayeed²

2011

J. Law. Med. Ethics

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In early 2010, the Nebraska state legislature passed a new abortion restricting law asserting a new, compelling state interest in preventing fetal pain. In this article, we review existing constitutional abortion doctrine and note difficulties presented by persistent legal attention to a socially derived viability construct. We then offer a substantive biological, ethical, and legal critique of the new fetal pain rationale.

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“…Both Pseudomonas fluorescens and Aeromonas hydrophila are associated with hemorrhagic septicemia in marine fish such as Tilapia zillii and Mugil capito [ 16 – 18 ]. Staphylococcus epidermidis , isolated previously from marine habitats [ 19 ], is also known to induce septicemia along with exophthalmia, congestion, and ulcers development in fishtails [ 20 , 21 ]. Streptococcus agalactiae are associated with bacteremia and meningitis induction if infected fish are consumed by humans [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial activity of exopolysaccharide produced by bee gut-resident Enterococcus sp. BE11 against marine fish pathogens

Zaghloul,

Ibrahim,

Zaghloul

2023

BMC Microbiol

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Background In recent years, the demand for innovative antimicrobial agents has grown, considering the growing problem of antibiotic resistance in aquaculture. Adult Apis mellifera honeybees’ gut represents an outstanding habitat to isolate novel lactic acid bacteria (LAB) able to produce prominent antimicrobial agents. Methods In the current study, twelve LAB were isolated and purified from the gut of adult Apis mellifera. The isolates were screened for exopolysaccharide (EPS) production. The most promising isolate BE11 was identified biochemically and molecularly using 16 S rRNA gene sequence analysis as Enterococcus sp. BE11 was used for the mass production of EPS. The partially purified BE11-EPS features were disclosed by its physicochemical characterization. Moreover, the antimicrobial activity of BE11 cell free supernatant (CFS) and its EPS was investigated against some fish pathogens namely, Pseudomonas fluorescens, Streptococcus agalactiae, Aeromonas hydrophila, Vibrio sp. and Staphylococcus epidermidis using well-cut diffusion method. Results The physicochemical characterization of BE11-EPS revealed that the total carbohydrate content was estimated to be ~ 87%. FTIR and NMR analysis ascertained the presence of galactose and glucose residues in the EPS backbone. Moreover, the GC-MS analysis verified the heterogeneous nature of the produced BE11-EPS made up of different monosaccharide moieties: galactose, rhamnose, glucose, arabinose sugar derivatives, and glucuronic acid. BE11 CFS and its EPS showed promising antimicrobial activity against tested pathogens as the inhibition zone diameters (cm) ranged from 1.3 to 1.7 and 1.2–1.8, respectively. Conclusion The bee gut-resident Enterococcus sp. BE11, CFS, and EPS were found to be promising antimicrobial agents against fish pathogens and biofilm producers affecting aquaculture. To the best of our knowledge, this is the first study to purify and make a chemical profile of an EPS produced by a member of the bee gut microbiota as a potential inhibitor for fish pathogens.

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Cited by 32 publications

References 12 publications

An initial survey on the occurrence of staphylococcal infections in Turkish marine aquaculture (2013–1014)

An initial survey on the occurrence of staphylococcal infections in Turkish marine aquaculture (2013–1014)

Fetal Pain, Abortion, Viability, and the Constitution

Antibacterial activity of exopolysaccharide produced by bee gut-resident Enterococcus sp. BE11 against marine fish pathogens

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