A mycobacterial disease is associated with the silent mass mortality of the pen shell Pinna nobilis along the Tyrrhenian coastline of Italy
| Autor: | Francesca Carella, Serena Aceto, F. Pollaro, Noèlia Carrasco, Carmelo Iaria, A. Miccio, Patricia Prado, G. De Vico |
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| Přispěvatelé: | Producció Animal, Aigües Marines i Continentals, Aqüicultura, Carella, Francesca, Aceto, Serena, Pollaro, Francesco, Miccio, Antonino, Iaria, Carmelo, Carrasco, Noelia, Prado, Patricia, DE VICO, Gionata |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Haplosporida lcsh:Medicine Zoology Article Mycobacterium 03 medical and health sciences 0302 clinical medicine Mediterranean sea Mediterranean Sea Animals Humans Parasite hosting lcsh:Science Protozoan Infections Animal Sicily Mycobacterium Infections Multidisciplinary biology lcsh:R Mycobacterial disease biology.organism_classification language.human_language Bivalvia Molecular analysis Mass mortality 030104 developmental biology Spain language lcsh:Q Sicilian 030217 neurology & neurosurgery Pinna nobilis |
| Zdroj: | IRTA Pubpro. Open Digital Archive Institut de Recerca i Tecnologia Agroalimentàries (IRTA) Scientific Reports, Vol 9, Iss 1, Pp 1-12 (2019) Scientific Reports |
| Popis: | Disease is an increasing threat for marine bivalves worldwide. Recently, a mass mortality event (MME) impacting the bivalve Pinna nobilis was detected across a wide geographical area of the Spanish Mediterranean Sea and linked to a haplosporidian parasite. In 2017–2018, mass mortality events affecting the pen shell Pinna nobilis were recorded in two different regions of Italy, Campania and Sicily, in the Tyrrhenian Sea (Mediterranean Sea). Histopathological and molecular examinations of specimens showed the presence of Haplosporidium sp. in only one specimen in one area. Conversely, in all of the surveyed moribund animals, strong inflammatory lesions at the level of connective tissue surrounding the digestive system and gonads and linked to the presence of intracellular Zhiel-Neelsen-positive bacteria were observed. Molecular analysis of all of the diseased specimens (13) confirmed the presence of a Mycobacterium. Blast analysis of the sequences from all of the areas revealed that they were grouped together with the human mycobacterium M. sherrisii close to the group including M. shigaense, M. lentiflavum and M. simiae. Based on pathological and molecular findings, it is proposed that a mycobacterial disease is associated with the mortality episodes of Pinna nobilis, indicating that, at this time, Haplosporidium sp. is not responsible for these events in Campanian and Sicilian waters. |
| Databáze: | OpenAIRE |
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