Long-term feeding with Euglena gracilis cells modulates immune responses, oxidative balance and metabolic condition in Diplodon chilensis (Mollusca, Bivalvia, Hyriidae) exposed to living Escherichia coli

We evaluated the modulating effect of long-term feeding with lyophilized Euglena gracilis cells on immune response, oxidative balance and metabolic condition of the freshwater mussel Diplodon chilensis. Mussels, previously fed with Scenedesmus vacuolatus (SV) or E.gracilis (EG) for 90 days, were cha...

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Autor principal: Bianchi, V.A
Otros Autores: Castro, J.M, Rocchetta, I., Nahabedian, D.E, Conforti, V., Luquet, C.M
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Academic Press 2015
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030 |a FSIME 
100 1 |a Bianchi, V.A. 
245 1 0 |a Long-term feeding with Euglena gracilis cells modulates immune responses, oxidative balance and metabolic condition in Diplodon chilensis (Mollusca, Bivalvia, Hyriidae) exposed to living Escherichia coli 
260 |b Academic Press  |c 2015 
270 1 0 |m Bianchi, V.A.; Laboratorio de Ecotoxicología Acuática, INIBIOMA (CONICET-UNCo) - CEAN, Ruta Provincial N 61, Km 3, CCP 7, Argentina 
506 |2 openaire  |e Política editorial 
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520 3 |a We evaluated the modulating effect of long-term feeding with lyophilized Euglena gracilis cells on immune response, oxidative balance and metabolic condition of the freshwater mussel Diplodon chilensis. Mussels, previously fed with Scenedesmus vacuolatus (SV) or E.gracilis (EG) for 90 days, were challenged with an environmentally relevant concentration of Escherichia coli in water for 5 days, under feeding or starvation conditions. EG diet increased overall phagocytic activity and tissue hemocyte accumulation (gill and mantle), and favored hemocyte viability upon E.coli challenge. Tissular hemocyte accumulation, and humoral bacteriolytic activity and protein content were similarly stimulated by EG and E.coli, with no further effect when both stimuli were combined. Both, E.coli challenge and EG diet reduced gill bacteriolytic activity with respect to nonchallenged SV mussels, while no effect was observed in challenged EG mussels. Gill and digestive gland protein contents, along with digestive gland bacteriolytic activity were higher in EG than in SV mussels. Both SV and EG mussels showed increased gill mass upon E.coli challenge, while digestive gland mass was increased by bacterial challenge only in SV mussels. Bacterial challenge produced no effect on humoral reactive oxygen species levels of both groups. Total oxyradical scavenging capacity levels was reduced in challenged SV mussels but remained unaffected in EG ones. In general, EG diet decreased glutathione S-transferase and catalase activities in gill and digestive gland, compared with SV diet; but increased enzyme activity was evident in challenged mussels of both groups. Gill and digestive gland lipid peroxidation levels were higher in EG than in SV mussels but E.coli challenge had stronger effect on SV mussels. Adductor muscle RNA:DNA ratio was higher in EG mussels than in SV ones, and increased upon E.coli challenge in mussels of both groups. E.gracilis can be suggested as a nutritional and protective diet complement suitable for filtering bivalves. However, our results obtained from starved mussels show that starvation periods after supplying this diet should be avoided, since these could revert part of the acquired benefits and/or exacerbate detrimental effects. © 2014 Elsevier Ltd.  |l eng 
536 |a Detalles de la financiación: PIP 0282 
536 |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica, PICT 00214, PICT 1293 
536 |a Detalles de la financiación: UBACYT 01/W290, PIP 0283 
536 |a Detalles de la financiación: This study was supported by grants CONICET PIP 0282 and ANPCYT PICT 00214 to CML; ANPCYT PICT 1293 to IR and CONICET PIP 0283 and UBACYT 01/W290 to VC; with permission N° 815 from the National Parks Administration. We acknowledge material support from Centro de Ecología Aplicada del Neuquén and Cooperativa de Agua Potable y Saneamiento de San Martín de los Andes. The authors wish to thank Flavia Bieczynski and Santiago Franzoni for scuba diving. Special thanks to the anonymous reviewers who helped to improve this manuscript. 
593 |a Laboratorio de Ecotoxicología Acuática, INIBIOMA (CONICET-UNCo) - CEAN, Ruta Provincial N 61, Km 3, CCP 7, Junín de los Andes, Neuquén, 8371, Argentina 
593 |a Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia, Buenos Aires, 1917, Argentina 
593 |a Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pab. II, Ciudad Universitaria, Buenos Aires, 1428, Argentina 
593 |a Department of Functional Ecology, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, Bremerhaven, 27570, Germany 
593 |a IBBEA, Instituto de CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pab. II, Ciudad Universitaria, Buenos Aires, 1428, Argentina 
593 |a Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pab. II, Ciudad Universitaria, Buenos Aires, 1428, Argentina 
690 1 0 |a ANTIOXIDANT RESPONSES 
690 1 0 |a EG 
690 1 0 |a GROWTH 
690 1 0 |a IMMUNOMODULATION 
690 1 0 |a PARAMYLON 
690 1 0 |a STARVATION 
690 1 0 |a SV 
690 1 0 |a BACTERIA (MICROORGANISMS) 
690 1 0 |a BIVALVIA 
690 1 0 |a DIPLODON CHILENSIS 
690 1 0 |a ESCHERICHIA COLI 
690 1 0 |a EUGLENA GRACILIS 
690 1 0 |a HYRIIDAE 
690 1 0 |a MOLLUSCA 
690 1 0 |a SCENEDESMUS VACUOLATUS 
690 1 0 |a ANALYSIS 
690 1 0 |a ANIMAL 
690 1 0 |a ANIMAL FOOD 
690 1 0 |a BIVALVE 
690 1 0 |a DIET 
690 1 0 |a ENERGY METABOLISM 
690 1 0 |a ESCHERICHIA COLI 
690 1 0 |a EUGLENA GRACILIS 
690 1 0 |a FOOD DEPRIVATION 
690 1 0 |a IMMUNOLOGY 
690 1 0 |a INNATE IMMUNITY 
690 1 0 |a METABOLISM 
690 1 0 |a MICROBIOLOGY 
690 1 0 |a OXIDATION REDUCTION REACTION 
690 1 0 |a PHYSIOLOGY 
690 1 0 |a ANIMAL FEED 
690 1 0 |a ANIMALS 
690 1 0 |a BIVALVIA 
690 1 0 |a DIET 
690 1 0 |a ENERGY METABOLISM 
690 1 0 |a ESCHERICHIA COLI 
690 1 0 |a EUGLENA GRACILIS 
690 1 0 |a FOOD DEPRIVATION 
690 1 0 |a IMMUNITY, INNATE 
690 1 0 |a OXIDATION-REDUCTION 
700 1 |a Castro, J.M. 
700 1 |a Rocchetta, I. 
700 1 |a Nahabedian, D.E. 
700 1 |a Conforti, V. 
700 1 |a Luquet, C.M. 
773 0 |d Academic Press, 2015  |g v. 42  |h pp. 367-378  |k n. 2  |p Fish Shellfish Immunol.  |x 10504648  |t Fish and Shellfish Immunology 
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856 4 0 |u https://doi.org/10.1016/j.fsi.2014.11.022  |y DOI 
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