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Box A, Capó X, Tejada S, Catanese G, Grau A, Deudero S, Sureda A, Valencia JM. Reduced Antioxidant Response of the Fan Mussel Pinna nobilis Related to the Presence of Haplosporidium pinnae. Pathogens 2020; 9:pathogens9110932. [PMID: 33187065 PMCID: PMC7698053 DOI: 10.3390/pathogens9110932] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/02/2020] [Accepted: 11/09/2020] [Indexed: 01/24/2023] Open
Abstract
The endemic fan mussel (Pinna nobilis) in the Mediterranean Sea is at high risk of disappearance due to massive mortality events. The aim of the study was to evaluate the antioxidant response of P. nobilis collected in the Balearic Islands (Western Mediterranean) before and after the mass mortality event. Individuals collected before (between 2011 and 2012) and after (between 2016 and 2017) the event were analyzed by histological, molecular, and biochemical methods to compare pathogenic loads and biochemical responses. All the individuals collected during 2016–2017 presented symptoms of the disease and were positive for Haplosporidium pinnae, while acid-fast bacteria or/and Gram-negative bacteria were detected in some individuals of both sampling periods. The activities of the antioxidant enzymes catalase and superoxide dismutase in the gills were significantly lower in P. nobilis affected with the parasite compared to those in the asymptomatic ones, while levels of malondialdehyde, as an indicator of lipid peroxidation, were higher in infected individuals. When analyzing the differential effects of H. pinnae and Mycobacterium sp. on P. nobilis, it was observed that significant effects on biomarkers were only observed in the presence of H. pinnae. Co-infection of P. nobilis by H. pinnae with other pathogens such as Mycobacterium sp. constitutes a serious problem due to its high mortality rate in the Balearic Island waters. This concerning situation for P. nobilis is favored by a reduction in antioxidant defenses related to H. pinnae infection that induces oxidative stress and cell damage.
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Affiliation(s)
- Antonio Box
- Department of Agricultura, Ramaderia, Pesca, Caça i Cooperació Municipal, Consell Insular d’Eivissa, 07800 Balearic Islands, Spain;
| | - Xavier Capó
- Instituto Español de Oceanografía, Centro Oceanográfico de Baleares, Muelle de Poniente s/n, 07015 Palma de Mallorca, Balearic Islands, Spain; (X.C.); (S.D.)
| | - Silvia Tejada
- Laboratory of Neurophysiology, Biology Department and Health Research Institute of Balearic Islands (IdisBa), University of the Balearic Islands, 07122 Palma de Mallorca, Balearic Islands, Spain;
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Gaetano Catanese
- Laboratorio de Investigaciones Marinas y Acuicultura, LIMIA-Govern de les Illes Balears, 07157 Port d’Andratx, Balearic Islands, Spain; (G.C.); (A.G.); (J.M.V.)
- INAGEA (INIA-CAIB-UIB), Edifici Guillem Colom Casasnoves, 07122 Palma de Mallorca, Balearic Islands, Spain
| | - Amalia Grau
- Laboratorio de Investigaciones Marinas y Acuicultura, LIMIA-Govern de les Illes Balears, 07157 Port d’Andratx, Balearic Islands, Spain; (G.C.); (A.G.); (J.M.V.)
- INAGEA (INIA-CAIB-UIB), Edifici Guillem Colom Casasnoves, 07122 Palma de Mallorca, Balearic Islands, Spain
| | - Salud Deudero
- Instituto Español de Oceanografía, Centro Oceanográfico de Baleares, Muelle de Poniente s/n, 07015 Palma de Mallorca, Balearic Islands, Spain; (X.C.); (S.D.)
| | - Antoni Sureda
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Research Group in Community Nutrition and Oxidative Stress and Health Research Institute of Balearic Islands (IdisBa), University of Balearic Islands, 07122 Palma de Mallorca, Balearic Islands, Spain
- Correspondence: ; Tel.: +34-971-172820
| | - José María Valencia
- Laboratorio de Investigaciones Marinas y Acuicultura, LIMIA-Govern de les Illes Balears, 07157 Port d’Andratx, Balearic Islands, Spain; (G.C.); (A.G.); (J.M.V.)
- INAGEA (INIA-CAIB-UIB), Edifici Guillem Colom Casasnoves, 07122 Palma de Mallorca, Balearic Islands, Spain
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