Organ specific changes in energy metabolism due to anaerobiosis in the sea mussel Mytilus edulis (L.) |
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| Affiliation: | 1. Department of Veterinary Sciences, University of Pisa, Via Livornese (lato monte), San Piero a Grado, Pisa 56122, Italy;2. Institute of Biosciences and Bioresources, IBBR-CNR, Via Madonna del Piano 10, Firenze, Sesto Fiorentino 50019, Italy;3. Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci” (CIBM), Viale N. Sauro 4, Livorno 57128, Italy;1. Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal;2. Chemistry Department & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal;3. Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci" (CIBM), 57128, Livorno, Italy;4. Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado (PI), Italy;1. Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal;2. Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci", 57128 Livorno, Italy;3. Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy;4. Department of Veterinary Sciences, University of Pisa, 56122 San Piero a Grado, PI, Italy |
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| Abstract: | - 1.1. Anaerobic energy metabolism was investigated in different organs of Mytilus edulis and the whole animal.
- 2.2. Succinate accumulates to high levels in most organs but remains low in the hemolymph.
- 3.3. After 16 hours propionate accumulation is observed in all organs. Experimental evidence is not sufficient yet to point out organs that produce more propionate than others.
- 4.4. Acetate is a minor end product.
- 5.5. Acetate and propionate are found in the hemolymph in amounts equal to those in the organs.
- 6.6. Animals incubated in oxygen-free seawater accumulate more end products than animals exposed to air, in the form of volatile fatty acids that are excreted into the incubation water.
- 7.7. Alanine and glutamine increase in the posterior adductor muscle. Aspartate decreases in the total animal, posterior adductor muscle and gills, while in the hemolymph decrease in alanine, asparagine, serine, threonine and proline are observed.
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