Mutations involved in the emergence of
            <i>Yersinia ruckeri</i>
            biotype 2 in France

Moreau, Emmanuelle; Thomas, Tatiana; Brevet, Marie; Thorin, Chantal; Fournel, Catherine; Calvez, Ségolène

doi:10.1111/tbed.13175

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…Interestingly, the loss of both motility and lipase activity in biotype 2 is caused by mutations in the flagellar secretion apparatus. Biotype 1 strains isolated in France are longer in size compared to biotype 2 isolates [20]. Y. ruckeri can be recovered from the internal organs of infected fish, and can be cultured on various bacteriological media such as Tryptic Soy Agar [21], Nutrient Agar [22], Brain Heart Infusion Agar [7], Columbia Blood Agar [23] and McConkey Agar [24,25].…”

Section: Description Of Y Ruckeri a Member Of The Yersiniaceae Fmentioning

confidence: 99%

“…The cells grow fairly rapidly in a wide temperature range from 22 °C to 37 °C, but best between 22 °C and 25 °C. Y. ruckeri can be identified using serological and molecular diagnostic tests [20,23,24,25,26,27,28,29,30,31,32,33,34,35,36]. Recently, a multi-locus variable-number tandem-repeat analysis has been developed as a fast and efficient method for high-resolution genotyping of Y. ruckeri isolates [37].…”

Section: Description Of Y Ruckeri a Member Of The Yersiniaceae Fmentioning

confidence: 99%

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Overcoming Fish Defences: The Virulence Factors of Yersinia ruckeri

Wróbel

Leo

Linke

2019

Genes

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Yersinia ruckeri is the causative agent of enteric redmouth disease, a bacterial infection of marine and freshwater fish. The disease mainly affects salmonids, and outbreaks have significant economic impact on fish farms all over the world. Vaccination routines are in place against the major serotypes of Y. ruckeri but are not effective in all cases. Despite the economic importance of enteric redmouth disease, a detailed molecular understanding of the disease is lacking. A considerable number of mostly omics-based studies have been performed in recent years to identify genes related to Y. ruckeri virulence. This review summarizes the knowledge on Y. ruckeri virulence factors. Understanding the molecular pathogenicity of Y. ruckeri will aid in developing more efficient vaccines and antimicrobial compounds directed against enteric redmouth disease.

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Section: Description Of Y Ruckeri a Member Of The Yersiniaceae Fmentioning

confidence: 99%

Section: Description Of Y Ruckeri a Member Of The Yersiniaceae Fmentioning

confidence: 99%

Overcoming Fish Defences: The Virulence Factors of Yersinia ruckeri

Wróbel

Leo

Linke

2019

Genes

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Antibiotic-Resistant Bacteria in Aquaculture and Climate Change: A Challenge for Health in the Mediterranean Area

Pepi

Focardi

2021

IJERPH

152

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Aquaculture is the productive activity that will play a crucial role in the challenges of the millennium, such as the need for proteins that support humans and the respect for the environment. Aquaculture is an important economic activity in the Mediterranean basin. A great impact is presented, however, by aquaculture practices as they involve the use of antibiotics for treatment and prophylaxis. As a consequence of the use of antibiotics in aquaculture, antibiotic resistance is induced in the surrounding bacteria in the column water, sediment, and fish-associated bacterial strains. Through horizontal gene transfer, bacteria can diffuse antibiotic-resistance genes and mobile resistance genes further spreading genetic determinants. Once triggered, antibiotic resistance easily spreads among aquatic microbial communities and, from there, can reach human pathogenic bacteria, making vain the use of antibiotics for human health. Climate change claims a significant role in this context, as rising temperatures can affect cell physiology in bacteria in the same way as antibiotics, causing antibiotic resistance to begin with. The Mediterranean Sea represents a ‘hot spot’ in terms of climate change and aspects of antibiotic resistance in aquaculture in this area can be significantly amplified, thus increasing threats to human health. Practices must be adopted to counteract negative impacts on human health, with a reduction in the use of antibiotics as a pivotal point. In the meantime, it is necessary to act against climate change by reducing anthropogenic impacts, for example by reducing CO2 emissions into the atmosphere. The One Health type approach, which involves the intervention of different skills, such as veterinary, ecology, and medicine in compliance with the principles of sustainability, is necessary and strongly recommended to face these important challenges for human and animal health, and for environmental safety in the Mediterranean area.

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Yersinia ruckeri İzolatlarında Biyofilm Oluşumunun ve Bazı Virulens Faktörlerinin Belirlenmesi

Demirbaş

AKTAŞ

KAYDU

et al. 2023

Etlik Veteriner Mikrobiyoloji Dergisi

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Çalışmada gökkuşağı alabalıklarından izole edilen 20 adet Yersinia ruckeri izolatının biyofilm oluşturma yeteneği ve bazı virülens faktörleri fenotipik olarak incelendi. İzolatların biyofilm oluşturma yeteneklerinin belirlenmesinde Kongo Red Agar (CRA), Modifiye Tüp Aderans (Christensen) ve Mikroplak yöntemleri kullanıldı. İzolatların hareket özelliği, hemolitik aktivitesi, lipaz aktivitesi ve proteaz aktivitesi fenotipik metotlar ile ortaya konuldu. CRA ve Christensen yöntemleri ile izolatlar biyofilm oluşturmazken mikroplak yönteminde izolatların büyük bir kısmının zayıf düzeyde biyofilm oluşturduğu saptandı. İzolatların 13’ünün hareketli ve lipaz aktivitesine sahip olduğu belirlenirken, 14 izolatın ise proteaz aktivitesine sahip olduğu belirlendi. Ek olarak izolatların tamamının nonhemolitik olduğu saptandı. Çalışma sonuçlarına göre sadece hareket ve lipaz aktivitesi arasında istatiksel olarak anlamlı, pozitif yönlü, güçlü bir korelasyon saptandı. Mikroorganizmaların patojenitesi virulens faktörleri ve biyofilm oluşumu ile bağlantılı bir süreçtir. Dolayısıyla Y. ruckeri izolatlarının virulens faktörlerinin ve biyofilm oluşumlarının periyodik olarak izlenmesi, Y. ruckeri enfeksiyonlarının önlenmesi veya tedavi edilmesinde anti-biyofilm terapilerinin geliştirilmesi gibi yeni stratejilerin oluşturulmasına önemli katkılar sağlayacaktır.

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Mutations involved in the emergence of Yersinia ruckeri biotype 2 in France

Cited by 3 publications

References 19 publications

Overcoming Fish Defences: The Virulence Factors of Yersinia ruckeri

Overcoming Fish Defences: The Virulence Factors of Yersinia ruckeri

Antibiotic-Resistant Bacteria in Aquaculture and Climate Change: A Challenge for Health in the Mediterranean Area

Yersinia ruckeri İzolatlarında Biyofilm Oluşumunun ve Bazı Virulens Faktörlerinin Belirlenmesi

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