Cell-surface properties of Vibrio ordalii strains isolated from Atlantic salmon Salmo salar in Chilean farms

Ruiz, Pamela; Poblete, M.; Yáñez, Alejandro J.; Irgang, Rute; Toranzo, Alicia E.; Avendaño‐Herrera, Rubén

doi:10.3354/dao02820

Cited by 15 publications

(31 citation statements)

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“…piscicida . V. ordalii is able to form biofilm, adhere to glass surfaces coated with fish mucus and possesses a hydrophobic character, which could be relevant in the marine aquatic environment to facilitate survival, colonization and host invasion (Ruiz et al 2015). This result is in accordance with that described by Naka et al (2011), whereby the V. ordalii type strain carries the syp genes involved in biofilm formation.…”

Section: Discussionsupporting

confidence: 80%

“…In addition to the fact that its taxonomic classification is still evolving, our understanding of the pathogenic mechanisms of V. ordalii is likewise incomplete. While a previous study found that V. ordalii pathogenicity is not correlated to the haemagglutination of Atlantic salmon Salmo salar red blood cells, the pathogenicity of this bacterium could be related to hydrophobic properties (Ruiz et al 2015). Furthermore, V. ordalii can survive in the mucus of Atlantic salmon.…”

Section: Introductionmentioning

confidence: 94%

“…Furthermore, V. ordalii can survive in the mucus of Atlantic salmon. This trait probably plays a role in in vivo host colonization and in evading the immune response of the host, even including bactericidal activities (Ruiz et al 2015). However, while the ability of V. ordalii to survive and remain infective in the aquatic environment may act as a major determinant to its pathogenicity, this has not yet been assessed.…”

Section: Introductionmentioning

confidence: 97%

“…Both strains belonged to the O2 serotype of this bacterial species, the members of which show similar DNA patterns, as supported by RAPD, REP-PCR and ERIC-PCR techniques (Silva-Rubio et al 2008). These strains were chosen based on the analysis of cell-surface characteristics reported by Ruiz et al (2015). V. ordalii Vo-LM-18 was classified as relatively hydrophobic, while Vo-LM-06 was classified as quasi-hydrophilic.…”

Section: Bacterial Strains and Growth Conditionsmentioning

confidence: 99%

“…For this, infectivity trials were conducted with the strain recovered after 60 d from the sterile microcosm, as described by Ruiz et al (2015). Briefly, V. ordalii-free rainbow trout (Oncorhynchus mykiss, weighing 28−30 g) were obtained from the 'Río Blanco Federico Alber Taupp' fish farm, which is located in Los Andes, Chile, and belongs to the Pontificia Universidad Católica de Valparaíso.…”

Section: Fish Infectionmentioning

confidence: 99%

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Survival behaviour and virulence of the fish pathogen Vibrio ordalii in seawater microcosms

et al. 2016

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Vibrio ordalii, the causative agent of atypical vibriosis, is a Gram-negative, motile, rod-shaped bacterium that severely affects the salmonid aquaculture industry. V. ordalii has been biochemically, antigenically and genetically characterized. However, studies on the survival behaviour of this bacterium in aquatic environments are scarce, and there is no information regarding its disease transmission and infectious abilities outside of the fish host or regarding water as a possible reservoir. The present study investigated the survival behaviour of V. ordalii Vo-LM-06 and Vo-LM-18 in sterile and non-sterile seawater microcosms. After a year in sterile seawater without nutrients, 1% of both V. ordalii strains survived (~10 3 colony-forming units ml −1 ), and long-term maintenance did not affect bacterial biochemical or genetic properties. Additionally, V. ordalii maintained for 60 d in sterile seawater remained infective in rainbow trout Oncorhynchus mykiss. However, after 2 d of natural seawater exposure, this bacterium became nonculturable, indicating that autochthonous microbiota may play an important role in survival. Recuperation assays that added fresh medium to non-sterile microcosms did not favour V. ordalii recovery on solid media. Our results contribute towards a better understanding of V. ordalii survival behaviour in seawater ecosystems. KEY WORDS: Vibrio ordalii · Vibriosis · Survival · MicrocosmResale or republication not permitted without written consent of the publisher

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Section: Discussionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 97%

Section: Bacterial Strains and Growth Conditionsmentioning

confidence: 99%

Section: Fish Infectionmentioning

confidence: 99%

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Survival behaviour and virulence of the fish pathogen Vibrio ordalii in seawater microcosms

et al. 2016

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Understanding the pathogenesis of important bacterial diseases of fish

Tonelli

Lemos

Tonelli

et al. 2022

Bacterial Fish Diseases

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Vibriosis in cultured marine fishes: a review

et al. 2019

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Vibriosis in cultured marine fishes: a review ABSTRCT For more than a century, vibriosis affects various species of economically important cultured marine fishes around the globe. The knowledge of this bacterial disease on many species of cultured fish is still lacking, but progressing. This review focuses on updated fundamental knowledge related to vibriosis including the history, taxonomy, and various epidemiological aspects such as socio-economy, clinical signs, pathological changes, diagnosis, pathogenesis, transmission, risk factors and control measures of vibriosis. This review revealed a rising prevalence of vibriosis in aquaculture, concomitant with the rapid development of this industry worldwide. Yet, information on Vibrio infection in cultured fish, particularly on the Vibrio of non-medical importance, the influence of their virulence toxins to host cells, effects of global warming and the socioeconomic impacts are still scarce, and need more profound studies. Moreover, comprehensive epidemiological information on vibriosis are quite limited in many Asian countries with tropical climate, limiting the progression in control and prevention aspects of the disease.

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Cell-surface properties of Vibrio ordalii strains isolated from Atlantic salmon Salmo salar in Chilean farms

Cited by 15 publications

References 50 publications

Survival behaviour and virulence of the fish pathogen Vibrio ordalii in seawater microcosms

Survival behaviour and virulence of the fish pathogen Vibrio ordalii in seawater microcosms

Understanding the pathogenesis of important bacterial diseases of fish

Vibriosis in cultured marine fishes: a review

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