Recovery and confirmation of <i>Edwardsiella piscicida</i> from a black crappie <i>Pomoxis nigromaculatus</i> (Lesueur, 1829)

Griffin, Matt J.; Petty, Barbara D.; Ware, Cynthia; Fogelson, Susan B.

doi:10.1111/jfd.13056

Cited by 2 publications

(1 citation statement)

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“…The pathogenicity of E. piscicida , part of which may have been misclassified as E. tarda in the past, might be underestimated compared to E. tarda (Bujan et al, 2018; Griffin et al, 2014). E. piscicida can infect a broad range of freshwater and seawater teleost fish species, like Pomoxis nigromaculatus (Griffin et al, 2019), Micropterus salmoides (Camus et al, 2019; Fogelson et al, 2016), Paralichthys olivaceus (Sugiura et al, 2018), Lates calcarifer (Loch et al, 2017), Carassius auratus (Choe et al, 2017), Taeniura meyeni (Camus et al, 2016), Ictalurus punctatus (Reichley et al, 2016) and Anguilla japonica (Tu & Kawai, 1998). In the meanwhile, edwardsiellosis caused great damage to the aquaculture industry, as the cumulative mortality of hybrid tilapia juveniles in Southeast Asia reached 40–50% (Dong et al, 2019); also, the mortality rate was up to 90–95% in adult turbot and 70–80% in juvenile ones (Wang et al, 2006); moreover, high mortality was observed in the eels with the cumulative mortality rate estimated to be >65% over a month (Jung et al, 2022).…”

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confidence: 99%

The pathway of Edwardsiella piscicida infecting Lateolabrax maculatus via the immersion bath

Hu,

Wang,

et al. 2023

Journal of Fish Diseases

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Edwardsiella piscicida, an infectious bacterium, causes great economic losses to the aquaculture industry. Immersion bath which is the closest way to how the fish infect bacterial pathogens in the natural environment is an effective route of artificial infection. In this study, the dynamic process of E. piscicida infection, in the spotted sea bass (Lateolabrax maculatus) was evaluated via the immersion bath. The results showed that soaking the spotted sea bass with 3 × 106 CFU mL−1 E. piscicida for 30 min could artificially induce edwardsiellosis. The higher culture temperature (28.5 ± 0.5°C) or the longer bath time (30 min) would lead to higher mortality of fish. E.piscicida first invaded the gill, then entered the blood circulation to infect the spleen and kidney, where it is colonized, and gradually multiplied in the liver and brain. Meanwhile, the fluorescence in situ hybridization showed that the localization of E. piscicida in the gill and foregut after the immersion challenge proceeded from the exterior to the interior. The invasion of pathogens triggers the immune response of fish and causes tissue damage to the host. The quantitative real‐time PCR results displayed an increase in the relative expression level of immune genes (NK‐lysin, LZM, IgM and IgD). Otherwise, the most notable histopathological changes of the infected spotted sea bass were multifocal necrosis. Findings in this study broaden our understanding of the infection conditions of E. piscicida and its pathogenicity to the spotted sea bass.

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Section: Introductionmentioning

confidence: 99%

The pathway of Edwardsiella piscicida infecting Lateolabrax maculatus via the immersion bath

Hu,

Wang,

et al. 2023

Journal of Fish Diseases

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Genetic characterization of heterologous Edwardsiella piscicida isolates from diverse fish hosts and virulence assessment in a Chinook salmon Oncorhynchus tshawytscha model

Nguyen

López-Porras

Marancik

et al. 2021

Journal of Fish Diseases

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Chinook salmon (Oncorhynchus tshawytscha), sockeye salmon (O. nerka) and coho salmon (O. kisutch) are major Pacific salmon species with strong economic, cultural, social, recreational and symbolic significance to communities in the US Pacific Northwest (Lichatowich & Lichatowich, 2001). Chinook salmon is considered a keystone species given their role in nutrient cycling and as a vital food source for diverse wildlife (Bennett, 2019;Cederholm et al., 1999;Gende et al., 2002). However, populations of Chinook salmon have decreased in abundance and several populations are listed as threatened under the Endangered Species Act (NMFS, 1999). Several factors including anthropogenic activities, climate change and a resurgence of key predators are attributed to the decline in salmon populations (Miller et al., 2014). Another factor putatively contributing to reduced wild salmon populations is infectious diseases (Kent, 2011).First recognized in 2013, Edwardsiella piscicida is a global fish pathogen reported from more than 20 species of fresh, brackish

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Recovery and confirmation of Edwardsiella piscicida from a black crappie Pomoxis nigromaculatus (Lesueur, 1829)

Cited by 2 publications

References 28 publications

The pathway of Edwardsiella piscicida infecting Lateolabrax maculatus via the immersion bath

The pathway of Edwardsiella piscicida infecting Lateolabrax maculatus via the immersion bath

Genetic characterization of heterologous Edwardsiella piscicida isolates from diverse fish hosts and virulence assessment in a Chinook salmon Oncorhynchus tshawytscha model

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