Disseminated nocardiosis associated with the isolation of <i>Nocardia nova</i> in a longsnout seahorse <i>Hippocampus reidi</i> (Ginsburg)

Dill, Jennifer; Sánchez, Susan; McDermott, Alison M.; Camus, Alvin C.

doi:10.1111/jfd.12589

Cited by 7 publications

(2 citation statements)

References 23 publications

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“…and Nocardia nova; parasites, such as Uronema spp. ; and marine leeches and fungi, have also been reported [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Identification of Mycobacterium chelonae from Lined Seahorse Hippocampus erectus and Histopathological Analysis

Bai

Hao²,

et al. 2023

Fishes

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The lined seahorse (Hippocampus erectus) is an aquacultural species in China and has important economic and ornamental value. However, the species is affected by disease, which restricts their large-scale cultivation. In 2021, a disease was observed in cultured seahorses in Tianjin, China, with a cumulative mortality rate of 20%. The symptoms observed in the moribund seahorse included a weak swimming capacity, discolored body surface, enlarged liver and kidneys, and numerous white nodules in the parenchymatous organs. The strains HM-2021-1 and HM-2021-2 were isolated from diseased seahorses and were identified as being responsible for the disease. It demonstrated the potential to infect seahorse, and the cumulative mortalities of the seahorses artificially infected with strains HM-2021-1 and HM-2021-2 were 93.3% and 90.0%. The pathogen was identified as Mycobacterium chelonae based on physiological and biochemical tests, and 16S rDNA, rpoB, and Hsp65 gene sequence analysis. To our knowledge, this study is the first report of M. chelonae associated with diseased seahorses in China.

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“…and Nocardia nova; parasites, such as Uronema spp. ; and marine leeches and fungi, have also been reported [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Identification of Mycobacterium chelonae from Lined Seahorse Hippocampus erectus and Histopathological Analysis

Bai

Hao²,

et al. 2023

Fishes

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“…V. fortis (Wang et al, 2016), V. alginolyticus, V. splendidus (Balcázar et al, 2010), V. harveyi (Alcaide et al, 2001;Qin et al, 2017;Tendencia, 2004), V. rotiferianus (Yang et al, 2017), V. tubiashii (Shao et al, 2020, V. parahaemolyticus (Lin et al, 2016), Mycobacterium sp. (Balcázar, Planas & Pintado, 2011;Fogelson et al, 2017), Nocardia nova (Dill et al, 2017), and Tenaciba culumaestuarii (Declercq et al, 2014), and parasites such as Uronema (Declercq et al, 2014), marine leeches, ciliates (Meng & Yu 1985), microsporidians (Vincent & Clifton-Hadley, 1989), and fungi (Blazer & Wolke, 1979).…”

Section: Introductionmentioning

confidence: 99%

Pathogenic Photobacterium sp. induce mortality in the lined seahorse (Hippocampus erectus): First case report from China

ZHANG

ZHANG²,

BAI³

et al. 2022

Israeli Journal of Aquaculture - Bamidgeh

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In August 2019, an unknown disease was first reported in farmed seahorses (Hippocampus erectus) in Binhai New Area in Tianjin city, China, with a cumulative mortality rate of 25% within seven days of onset. The main symptoms of the affected seahorses were discoloration of the body surface, abdominal distention, kidney erosion, and intestinal enlargement. Histopathological observation revealed damage to the diseased seahorses' intestines, liver, and kidneys. Strains HM-2019-5 and HM-2019-6 were isolated from diseased kidneys and identified as Photobacterium sp. based on physiological and biochemical tests and 16S rDNA sequencing analysis. Artificial infection experiments demonstrated that strain HM-2019-5 could cause a 90% morbidity rate in healthy seahorses. Antimicrobial susceptibility tests showed that HM-2019-5 and HM-2019-6 were resistant to 13 of 16 antimicrobial agents tested. This is the first report of photobacterial disease in a seahorse to the best of our knowledge.

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Bacterial Diseases

Hadfield¹

2021

Clinical Guide to Fish Medicine

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Disseminated nocardiosis associated with the isolation of Nocardia nova in a longsnout seahorse Hippocampus reidi (Ginsburg)

Cited by 7 publications

References 23 publications

Identification of Mycobacterium chelonae from Lined Seahorse Hippocampus erectus and Histopathological Analysis

Identification of Mycobacterium chelonae from Lined Seahorse Hippocampus erectus and Histopathological Analysis

Pathogenic Photobacterium sp. induce mortality in the lined seahorse (Hippocampus erectus): First case report from China

Bacterial Diseases

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