Physiological responses to sulfide toxicity by the air-breathing catfish, Hoplosternum littorale (Siluriformes, Callichthyidae)
| Autor: | C.F. Corrêa, Gilberto Moraes, E.G. Affonso, V.L.P. Polez, A.F. Mazon, Francisco Tadeu Rantin, M.R.R. Araújo |
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| Rok vydání: | 2004 |
| Předmět: |
Gills
Gill Sulfide Physiology Health Toxicology and Mutagenesis Hydrogen sulfide Sulfides Toxicology Biochemistry Methemoglobin Electron Transport Complex IV chemistry.chemical_compound Pyruvic Acid Animals Cytochrome c oxidase Lactic Acid Catfishes chemistry.chemical_classification Hematologic Tests biology Muscles Myocardium digestive oral and skin physiology Cell Biology General Medicine Metabolism biology.organism_classification Glucose Liver chemistry biology.protein Hoplosternum littorale Catfish |
| Zdroj: | Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology. 139:251-257 |
| ISSN: | 1532-0456 |
| DOI: | 10.1016/j.cca.2004.11.007 |
| Popis: | Hemolytic anemia accompanied by changes in the immunology system is one of the sulfide intoxication harmful effects on Hoplosternum littorale. Hematological parameters are considered as effective indicators of stress caused by this hydrogen sulfide. During sulfide exposure, H. littorale neither alters the methemoglobin concentration nor forms sulfhemoglobin in the presence of high levels of dissolved sulfide in the water. Cytochrome c oxidase shows little activity in the gills and blood of H. littorale when exposed to sulfide. Alternative metabolic routes are suggested through which the accumulation of pyruvate leads to the formation of an end product other than lactate. |
| Databáze: | OpenAIRE |
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