Artigo

Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae)

Hematological parameters, intraerythrocytic phosphates, hemoglobin, and whole blood Bohr effect of the South American armored catfish Hoplostenum littorale were studied during different seasons of the year. In addition, the degree of dependence on air breathing was determined for this species. The h...

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Autor principal: Affonso, Elizabeth Gusmão
Grau: Artigo
Idioma: English
Publicado em: Acta Amazonica 2020
Assuntos:
Adaptation
Air-breathing Behavior
Hematology
Intraerythrocytic Phosphate
Blood Bohr Effect
Adaptação
Comportamento Da Respiração Aérea
Hematologia
Fosfatos Intraeritrocitários
Efeito Bohr Do Sangue
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/13048
id oai:repositorio:1-13048
recordtype dspace
spelling oai:repositorio:1-13048 Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae) Características respiratórias de Hoplostenum littorale (Siluriformes, Callichthyidae) Affonso, Elizabeth Gusmão Adaptation Air-breathing Behavior Hematology Intraerythrocytic Phosphate Blood Bohr Effect Adaptação Comportamento Da Respiração Aérea Hematologia Fosfatos Intraeritrocitários Efeito Bohr Do Sangue Hematological parameters, intraerythrocytic phosphates, hemoglobin, and whole blood Bohr effect of the South American armored catfish Hoplostenum littorale were studied during different seasons of the year. In addition, the degree of dependence on air breathing was determined for this species. The hematological parameters presented seasonal variations, which were not correlated to oxygen, temperature, and water level oscillations. Five anodic hemoglobin fractions were detected in starch gel electrophoresis. In addition to ATP, GTP and Fe-GTP being detected, 2,3-DPG was also detected in red blood cells of H. littorale. The latter is an intraerythrocytic phosphate characteristic to red blood cells of mammalians. The increased production of 2,3-DPG could be associated with decreasing Hb-O2 affinity and both features could be related to environmental temperature increase. Whole blood Bohr effect was influenced by water temperature. This study confirms H. littorale to be continuous and not obligate air breather, under all dissolved oxygen level conditions. Os parâmetros hematológicos, os fosfatos intraeritrocitários, a hemoglobina e o efeito Bohr do sangue de Hoplostenum littorale foram estudados em diferentes períodos do ano. Além disso, foi determinado o grau de dependência da respiração aérea nesta espécie. Os parâmetros hematológicos apresentaram variações sazonais, as quais não foram relacionadas com as variações no oxigênio dissolvido, temperatura e nível de água. Além de ATP, GTP e Fe-GTP terem sido detectados nos eritrócitos de H. littorale, 2,3-DPG também foi detectado. Este último é um fosfato intraeritrocitário característico de células vermelhas de mamíferos. O efeito deste composto sobre a afinidade da Hb-O2 pode estar relacionado com o aumento da temperatura. O efeito Bohr do sangue foi influenciado pela temperatura da água. Este estudo confirma que H. littorale é um respirador aéreo facultativo que utiliza a respiração aérea mesmo em condições normóxicas. 2020-04-24T15:13:49Z 2020-04-24T15:13:49Z 2001 Artigo https://repositorio.inpa.gov.br/handle/1/13048 10.1590/1809-43922001312262 en Volume 31, Número 2, Pags. 249-249 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Acta Amazonica
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Adaptation
Air-breathing Behavior
Hematology
Intraerythrocytic Phosphate
Blood Bohr Effect
Adaptação
Comportamento Da Respiração Aérea
Hematologia
Fosfatos Intraeritrocitários
Efeito Bohr Do Sangue
spellingShingle Adaptation
Air-breathing Behavior
Hematology
Intraerythrocytic Phosphate
Blood Bohr Effect
Adaptação
Comportamento Da Respiração Aérea
Hematologia
Fosfatos Intraeritrocitários
Efeito Bohr Do Sangue
Affonso, Elizabeth Gusmão
Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae)
topic_facet Adaptation
Air-breathing Behavior
Hematology
Intraerythrocytic Phosphate
Blood Bohr Effect
Adaptação
Comportamento Da Respiração Aérea
Hematologia
Fosfatos Intraeritrocitários
Efeito Bohr Do Sangue
description Hematological parameters, intraerythrocytic phosphates, hemoglobin, and whole blood Bohr effect of the South American armored catfish Hoplostenum littorale were studied during different seasons of the year. In addition, the degree of dependence on air breathing was determined for this species. The hematological parameters presented seasonal variations, which were not correlated to oxygen, temperature, and water level oscillations. Five anodic hemoglobin fractions were detected in starch gel electrophoresis. In addition to ATP, GTP and Fe-GTP being detected, 2,3-DPG was also detected in red blood cells of H. littorale. The latter is an intraerythrocytic phosphate characteristic to red blood cells of mammalians. The increased production of 2,3-DPG could be associated with decreasing Hb-O2 affinity and both features could be related to environmental temperature increase. Whole blood Bohr effect was influenced by water temperature. This study confirms H. littorale to be continuous and not obligate air breather, under all dissolved oxygen level conditions.
format Artigo
author Affonso, Elizabeth Gusmão
title Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae)
title_short Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae)
title_full Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae)
title_fullStr Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae)
title_full_unstemmed Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae)
title_sort respiratory characteristics of hoplostenum littorale (siluriformes, callichthyidae)
publisher Acta Amazonica
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/13048
_version_ 1787143151413100544
score 11.755432

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