First report of <i>Streptococcus parauberis</i> in a cultured freshwater ornamental fish, the ram cichlid <i>Mikrogeophagus ramirezi</i> (Myers &amp; Harry, 1948)

Lazado, Carlo C.; Fridman, Sophie; Sinai, Tamar; Zilberg, Dina

doi:10.1111/jfd.12676

Cited by 7 publications

(4 citation statements)

References 24 publications

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“…c), as these cell‐to‐cell properties are interrelated (Lazado et al . ). The A‐layer of Aeromonas is a key feature that plays a part in bacterial auto‐aggregation (Johnson et al .…”

Section: Resultsmentioning

confidence: 97%

Pathogenic characteristics ofAeromonas veroniiisolated from the liver of a diseased guppy (Poecilia reticulata)

Lazado

Zilberg

2018

Lett Appl Microbiol

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Aeromonad infections continue to affect the fish farming industry. Several new species of Aeromonads in freshwater ornamental fish have been identified in the last years. In this study, we have characterized an Aeromonas veronii isolate from a diseased guppy. The series of experiments identified the intrinsic and extrinsic factors contributing to the pathogenic characteristics of the isolate. It has been shown to be pathogenic to both guppy and zebrafish. The results offer foundational knowledge in the development of preventive and therapeutic measures to combat this pathogen in the ornamental fish industry.

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“…c), as these cell‐to‐cell properties are interrelated (Lazado et al . ). The A‐layer of Aeromonas is a key feature that plays a part in bacterial auto‐aggregation (Johnson et al .…”

Section: Resultsmentioning

confidence: 97%

Pathogenic characteristics ofAeromonas veroniiisolated from the liver of a diseased guppy (Poecilia reticulata)

Lazado

Zilberg

2018

Lett Appl Microbiol

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“…Lethargy, loss of appetite, skin discoloration, exophthalmia/corneal opacity, abdominal distention and abnormal behavioral swimming are the most common clinical signs of streptococcosis in infected fish [ 9 , 47 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 ]. These clinical signs are not pathognomonic because they are not distinct from lactococcosis caused by Lactococcus garvieae, at least in some high susceptible species such as rainbow trout ( Oncorhynchus mykiss ) [ 59 ].…”

Section: The Diseasementioning

confidence: 99%

“…Little information is available, however, on the pathology of other streptococcal infections in fish. Macrophage infiltration in kidney, liver and muscle, focal necrosis in muscle fibers in freshwater fish infected with S. parauberis [ 57 ] and large numbers of vacuoles in the brain matrix of fish infected with S. uberis have been reported [ 58 ], but no microscopic pathology data are available for S. phocae infections in fish [ 53 , 64 ].…”

Section: The Diseasementioning

confidence: 99%

“…The first study reporting streptococcosis infection by S. parauberis (formerly known as S. uberis type II) [ 120 ] in fish was revealed by Domeénech et al [ 121 ]. Subsequently, the disease was reported in several species including turbot ( Scophthalmus maximus ), olive flounder, sea bass ( Sebastes ventricosus ), striped bass ( Morone saxatilis ) and ram cichlid ( Mikrogeophagus ramirezi ) [ 57 , 122 , 123 , 124 , 125 ]. More recently, S. parauberis classified as serotype III has been reported as the cause of streptococcosis in different turbot farms in China, and the isolates are different from those that infect flounder ( Paralichthys olivaceus ) in Japan and South Korea but similar to strains in Spain and the USA [ 101 ].…”

Section: The Diseasementioning

confidence: 99%

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Streptococcosis a Re-Emerging Disease in Aquaculture: Significance and Phytotherapy

Soltani

Leitão

Shafiei

et al. 2022

Animals

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Streptococcosis, particularly that caused by S. iniae and S. agalactiae, is a major re-emerging bacterial disease seriously affecting the global sustainability of aquaculture development. Despite a wide spread of the disease in aquaculture, few studies have been directed at assessing the in vitro antagonistic activity and in vivo efficacy of medicinal herbs and other plants against streptococcal agents. Most in vitro studies of plant extractives against S. iniae and S. agalactiae have found antibacterial activity, but essential oils, especially those containing eugenol, carvacrol or thymol, are more effective. Although essential oils have shown better anti-streptococcal activity in in vitro assays, in vivo bioassays require more attention. The extracts examined under in vivo conditions show moderate efficacy, increasing the survival rate of infected fish, probably through the enhancement of immunity before challenge bioassays. The available data, however, lack dosage optimization, toxicity and bioavailability assays of a specific plant or its bioactive compound in fish organs; hence, it is difficult to judge the validation of clinical efficacy for the prevention or treatment of fish streptococcosis. Despite the known bioactive compounds of many tested plants, few data are available on their mode of action towards streptococcal agents. This review addresses the efficacy of medicinal plants to fish streptococcosis and discusses the current gaps.

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Characterization of a Streptococcus species isolated from Siganus guttatus in South China

Wang

Olsen

et al. 2021

Aquaculture

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First report of Streptococcus parauberis in a cultured freshwater ornamental fish, the ram cichlid Mikrogeophagus ramirezi (Myers & Harry, 1948)

Cited by 7 publications

References 24 publications

Pathogenic characteristics ofAeromonas veroniiisolated from the liver of a diseased guppy (Poecilia reticulata)

Pathogenic characteristics ofAeromonas veroniiisolated from the liver of a diseased guppy (Poecilia reticulata)

Streptococcosis a Re-Emerging Disease in Aquaculture: Significance and Phytotherapy

Characterization of a Streptococcus species isolated from Siganus guttatus in South China

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