Description of lens atrophy caused by Shewanella sp. strain S-1, a putative novel species isolated from cultured rainbow trout

Satıcıoğlu, İzzet Burçin; Isbilir, Fatma; YAVAŞ, Özkan; Avci, Zehra; Özdemir, Burak; Suzer, Bayram; Altun, Soner; Duman, Muhammed

doi:10.1016/j.aquaculture.2021.736779

Cited by 7 publications

(14 citation statements)

References 46 publications

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“…The strain has 41 antimicrobial resistance genes including genes coding for ATP-binding cassette (ABC) antibiotic efflux pumps, resistancenodulation-cell division (RND) antibiotic efflux pumps, Class C and D beta-lactamases, chloramphenicol acetyltransferases and pentapeptides. The results the ARTS analysis also indicated that the genome of S-1 T contains 79 duplicated and 205 horizontally acquired genes, which may contribute to the virulent nature of the strain as reported in a previous study [5].…”

Section: Genome Featuressupporting

confidence: 77%

“…Moreover, Shewanella sp. S-1 T was firstly described as an eye infection of rainbow trout causing lens atrophy without other lesions [5].…”

Section: Full-textmentioning

confidence: 99%

“…Since the first description by MacDonell and Colwell [1], the genus Shewanella has undergone a rapid expansion by 76 species with validly published and correct names (at the time of writing) (https://lpsn.dsmz.de/genus/shewanella), and Shewanella putrefaciens as the type species [1, 2]. The members of the genus have been commonly isolated from aquatic environments, including invertebrates, deep sea, seawater, Antarctic sea ice, and fish, besides clinical samples and humans, with notable ecological compatibility, which results in the emergent clinical importance of these species [3–8]. Several species of the genus Shewanella have been described as potential spoilage bacteria or opportunistic pathogens of fish and humans.…”

Section: Full-textmentioning

confidence: 99%

“…Several species of the genus Shewanella have been described as potential spoilage bacteria or opportunistic pathogens of fish and humans. However, it was first reported as a potential fish pathogen [7], subsequently, S. putrefaciens has been reported from several fish species, such as rainbow trout (Oncorhynchus mykiss) and goldfish (Carassius auratus) [5,[8][9][10]. In addition, there are reports about several clinical cases of Shewanella isolated from eye infections after fishhook injury in humans.…”

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confidence: 99%

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Shewanella oncorhynchi sp. nov., a novel member of the genus Shewanella, isolated from Rainbow Trout (Oncorhynchus mykiss)

Altun

Duman

et al. 2022

International Journal of Systematic and Evolutionary Microbiology

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A strain, S-1T was isolated from rainbow trout (Oncorhynchus mykiss) exhibiting clinical symptoms of lens atrophy, inappetence, visual impairment and growth retardation. The strain was identified as representing a member of the genus Shewanella on the basis of the results of 16S rRNA gene sequence analysis. The neighbor-joining phylogenetic tree based on 16S rRNA gene sequences indicated that S-1T clustered with Shewanella putrefaciens JCM 20190T, Shewanella profunda DSM 15900T, and Shewanella hafniensis P010T, sharing 99.3, 98.8 and 87.7% 16S rRNA gene similarities, respectively. A polyphasic taxonomic approach including phenotypic, chemotaxonomic, and genomic characterization was employed to ascertain the taxonomic position of S-1T within the genus Shewanella . The overall genome relatedness indices (OGRI) for S-1T compared with the most closely related type strains S. hafniensis ATCC BAA-1207T, Shewanella baltica NCTC 10735T, S. putrefaciens ATCC 8071T and S. profunda DSM 15900T were calculated as 40.8, 40.1, 28.5 and 27.3% for digital DNA–DNA hybridization (dDDH), and 91.6, 91.0, 86.3 and 85.1% for average nucleotide identity (ANI), respectively. OGRI values between S-1T and its close neighbours confirmed that the strain represents a novel species in the genus Shewanella .The DNA G+C content of the strain is 45.2%. Major fatty acids were C17 : 1ω8c, C15 : 0iso, and summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c). The predominant polar lipids were phosphatidylethanolamine, phospholipid, amino-phospholipid and unidentified lipids. The major respiratory quinones were ubiquinone-8, ubiquinone-7 and menaquinone-7. Chemotaxonomic and phylogenomic analyses of this isolate confirmed that the strain represents a novel species for which the name Shewanella oncorhynchi sp. nov. is proposed, with S-1T as the type strain (JCM 34183T= KCTC 82249T).

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Section: Genome Featuressupporting

confidence: 77%

“…Moreover, Shewanella sp. S-1 T was firstly described as an eye infection of rainbow trout causing lens atrophy without other lesions [5].…”

Section: Full-textmentioning

confidence: 99%

Section: Full-textmentioning

confidence: 99%

mentioning

confidence: 99%

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Shewanella oncorhynchi sp. nov., a novel member of the genus Shewanella, isolated from Rainbow Trout (Oncorhynchus mykiss)

Altun

Duman

et al. 2022

International Journal of Systematic and Evolutionary Microbiology

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“…(Stephan et al 2011), Shewanella spp. (Jung-Schroers et al 2018;Saticioglu et al 2021c), Pseudomonas spp. (Duman et al 2020), Flavobacterium spp.…”

Section: Matrix-assisted Laser Desorption/ionization Time-of-flight M...mentioning

confidence: 99%

General Assessment of Approaches to the Identification of Aquatic Bacterial Pathogens: A Methodological Review

2022

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In the evolving biosphere, pathogenic microorganisms that cause disease may undergo phenotypic changes. While some of these changes result in new variants or mutants, others lead to the emergence of novel pathogens. Such phenotypic changes as well as advances in technology and analytical methods and the identification of genomic sequences of microbial DNA have brought about new methodological approaches in the diagnosis of bacterial diseases. Although bacterial identification was originally based on phenotypic characteristics, later researchers claimed that bacteria could be accurately identified by only gene sequencing and generally by the sequencing of the 16S ribosomal RNA gene region. Currently, there is still disagreement between classical microbiologists and those using new genomic sequence technology over the best method for identification. Fish are cold‐blooded animals, and fish pathogens generally exhibit psychrophilic characteristics. Many bacterial identification systems that are used to identify mesophilic bacteria remain useless for identifying fish pathogens because the optimum incubation temperatures for mesophilic bacteria are 35–37°C. Bacteria that are pathogenic to piscine species require specific media for their cultivation at lower incubation temperatures (15–28°C), and this limits both their growth in culture and subsequent identification by phenotype‐based methods. This review presents a comprehensive overview of the isolation and identification of bacterial fish pathogens by optimal culture conditions, biochemical tests, colorimetric methods for rapid identification systems, matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry, and immunological and molecular methods, as well as an overview of the detection of uncultivable bacteria and the use of anamnesis. We conclude that the accurate identification of fish pathogens requires the use of different methods, including phenotype‐ and genotype‐based tests, and the evaluation of anamnesis.

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A Review of the Industrial Importance, Common Bacterial Diseases, and Zoonotic Risks of Freshwater Aquarium Fish

Duman,

Satıcıoğlu,

Janda

2024

Vector-Borne and Zoonotic Diseases

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Description of lens atrophy caused by Shewanella sp. strain S-1, a putative novel species isolated from cultured rainbow trout

Cited by 7 publications

References 46 publications

Shewanella oncorhynchi sp. nov., a novel member of the genus Shewanella, isolated from Rainbow Trout (Oncorhynchus mykiss)

Shewanella oncorhynchi sp. nov., a novel member of the genus Shewanella, isolated from Rainbow Trout (Oncorhynchus mykiss)

General Assessment of Approaches to the Identification of Aquatic Bacterial Pathogens: A Methodological Review

A Review of the Industrial Importance, Common Bacterial Diseases, and Zoonotic Risks of Freshwater Aquarium Fish

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