Association of <i>Pseudomonas anguilliseptica</i> infection with ‘winter disease’ in sea bream, <i>Sparus aurata</i> L.

Doménech, Ana; Fernández‐Garayzábal, J. F.; García, José Ángel López; Cutuli, M. Teresa; Blanco, M. Mar; Gibello, Alicia; Moreno, Miguel A.; Domı́nguez, Lucas

doi:10.1046/j.1365-2761.1999.00124.x

Cited by 32 publications

(16 citation statements)

References 9 publications

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“…Sequences of Betaproteobacteria in this study were related to Hydrogenophaga and Acidovorax that had also been found in diatomderived microaggregates (11) and in lake snow of Lake Constance (40). Most of the sequences of Gammaproteobacteria were related to the eel pathogen Pseudomonas anguilliseptica (14). 16S rRNA gene sequences related to Bacteroidetes were often amplified from diatom cultures.…”

Section: Discussionsupporting

confidence: 65%

Bacteria Associated with Benthic Diatoms from Lake Constance: Phylogeny and Influences on Diatom Growth and Secretion of Extracellular Polymeric Substances

Brückner

Bahulikar

Rahalkar

et al. 2008

Appl Environ Microbiol

125

128

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The composition of diatom-associated bacterial communities was studied with 14 different unialgal xenic diatom cultures isolated from freshwater epilithic biofilms of Lake Constance, Germany. A clear dominance of Alphaproteobacteria was observed, followed by Betaproteobacteria, Gammaproteobacteria, Bacteroidetes, and Verrucomicrobia. Pure cultures of the diatom Cymbella microcephala, which was found to be dominant in epilithic biofilms in Lake Constance, were cocultivated with six associated bacterial strains. All these bacterial strains were able to grow in C. microcephala cultures in the absence of organic cosubstrates. Diatom growth was generally enhanced in the presence of bacteria, and polysaccharide secretion was generally increased in the presence of Proteobacteria. The monomer composition of extracellular polysaccharides of C. microcephala changed in relation to the presence of different bacteria, but the dominant monomers were less affected. Our results indicate that these changes were caused by the diatom itself rather than by specific bacterial degradation. One Bacteroidetes strain strongly influenced carbohydrate secretion by the alga via extracellular soluble compounds. Biofilms were formed only in the presence of bacteria. Phylogenetic analysis and coculture studies indicate an adaptation of Proteobacteria and Bacteroidetes to the microenvironment created by the diatom biofilm.

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Section: Discussionsupporting

confidence: 65%

Bacteria Associated with Benthic Diatoms from Lake Constance: Phylogeny and Influences on Diatom Growth and Secretion of Extracellular Polymeric Substances

Brückner

Bahulikar

Rahalkar

et al. 2008

Appl Environ Microbiol

125

128

View full text Add to dashboard Cite

show abstract

“…It also causes severe economic losses and decreases fish farms efficiencies especially under culture conditions [6][7][8] such as overcrowding, low temperature where the highest natural mortalities were at 15°C to 20°C, injuries as inappropriate handling and transportation and secondary pathogen of damaged fish tissues [9][10][11][12][13][14]. Austin [2] suggested the reason for the widespread incidence of Pseudomonas sp.…”

Section: Introductionmentioning

confidence: 99%

Phenotypic and Genotypic Characterization of Some Pseudomonas sp. Associated with Burkholderia cepacia Isolated from Various Infected Fishes

El‐Barbary¹,

Hal²

2017

J Aquac Res Development

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“…However, in previous studies, some bacterial agents such as Aeromonas hydrophila, , and Pseudomonas anguilliseptica [11][12][13] , have been isolated and some parasites such as Sanguinicolid trematodes 14 have been reported during the outbreaks of WD. In the present study, according to bacteriological examinations, bacterial agents such as Vibrio spp.…”

Section: Bi̇ri̇nci̇oğlu Aydoğan Avcimentioning

confidence: 99%

“…It has been reported that WD outbreaks are appeared during the winter seasons and several environmental stress factors such as decrease in salinity and temperature (<13ºC) of sea water influenced the formation of WD 5,8,10,13 . Hepatic steatosis is accentuated in sea bream affected by WD and a polifactorial, metabolic-based pathology which causes high mortality when the water temperature drops below 11-13ºC 2,4 .…”

Section: Bi̇ri̇nci̇oğlu Aydoğan Avcimentioning

confidence: 99%

Pathological Investigations of Winter-like Disease in Cultured Sea Breams (Sparus aurata)

Birincioğlu¹,

Aydoğan²,

Avcı³

2013

Kafkas Univ Vet Fak Derg

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SummaryDuring the January 2008, an outbreak occurred in 15 sea bream farms located in Güllük gulf of Bodrum, Turkey and approximately two million sea breams (Sparus aurata) were died in three weeks. When the outbreak was took place, surface temperature and dissolved oxygen of sea water was measured as 10ºC and 7.9 mg/l on January 10, 2008. For pathological examinations, a total of 65 fish (8-9-month-old) were collected from 9 of 15 farms. At necropsy, extreme abdominal distention, milk-like discharge around the anus and depigmentation of skin were observed in all fish. The liver was swollen and yellowish-white in color. Microscopically, degeneration, severe fatty changes and multifocal necrotic areas were observed in the liver. The similar necrotic areas were also noted in the kidney and spleen. Severe verminous enteritis due to Myxidium spp. was seen in two fish farms. The gills were generally edematous and hyperemic. According to result of bacteriological examinations, Vibrio spp. (farm no: 1) and Staphylococcus spp. (farms no: 1, 8) were isolated and identified in some farms. In conclusion, it is thought that the outbreak occurred in sea breams might be winter disease associated with sudden decreases in water temperature together with induced fatty liver. Keywords: Winter disease, Sea bream, Histopathology, Liver Kültür Çipuralarında (Sparus aurata) Winter-benzeri Hastalık Üzerinde Patolojik İncelemeler ÖzetBodrum Güllük körfezinde bulunan 15 farklı balık çiftliğinde, 10 Ocak 2008 döneminde, kültür çipuralarında (Sparus aurata) görülen bir salgın sonucu üç hafta içinde yaklaşık 2 milyon balık ölümü meydana geldi. Ölümlerin meydana geldiği dönemde, deniz suyunun yüzey sıcaklığı 10ºC ve çözünmüş oksijen miktarı 7.9 mg/l olarak ölçüldü. Çalışmada, salgının görüldüğü 15 işletmenin dokuzundan alınan toplam 65 adet çipura (8-9 aylık) incelendi. Dış bakıda, tüm balıklarda karında aşırı şişkinlik, anus etrafında süt benzeri akıntı ve deride depigmentasyon görüldü. Karaciğerler şişkin ve sarımsı-beyaz renkteydi. Mikroskobik incelemede, karaciğerde dejenerasyon, şiddetli yağlanma ve multifokal nekroz alanları dikkati çekti. Benzer nekroz alanlarına böbrek ve dalaklarda da rastlandı. İki işletmede barsaklarda Myxidium spp.ye bağlı şiddetli paraziter enteritis saptandı. Solungaçların sekunder lamellerinde ödem ve hiperemi oldukça belirgindi. Bakteriyolojik inceleme sonucunda, bir işletmede Vibrio spp. (işletme no: 1), iki işletmede ise Staphylococcus spp. (işletme no: 1, 8) izole ve identifiye edildi. Sonuç olarak, çipuralarda görülen bu ölümlerin, deniz suyu sıcaklığında meydana gelen ani düşüşün neden olduğu karaciğer yağlanmasıyla karakterize Winter hastalığına bağlı olarak oluşabileceği düşünüldü.

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Association of Pseudomonas anguilliseptica infection with ‘winter disease’ in sea bream, Sparus aurata L.

Cited by 32 publications

References 9 publications

Bacteria Associated with Benthic Diatoms from Lake Constance: Phylogeny and Influences on Diatom Growth and Secretion of Extracellular Polymeric Substances

Bacteria Associated with Benthic Diatoms from Lake Constance: Phylogeny and Influences on Diatom Growth and Secretion of Extracellular Polymeric Substances

Phenotypic and Genotypic Characterization of Some Pseudomonas sp. Associated with Burkholderia cepacia Isolated from Various Infected Fishes

Pathological Investigations of Winter-like Disease in Cultured Sea Breams (Sparus aurata)

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