Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae)
Autor(a) principal: | |
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Data de Publicação: | 2001 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Amazonica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672001000200249 |
Resumo: | 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. |
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Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae)Adaptationair-breathing behaviorhematologyintraerythrocytic phosphateblood Bohr effectHematological 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.Instituto Nacional de Pesquisas da Amazônia2001-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672001000200249Acta Amazonica v.31 n.2 2001reponame:Acta Amazonicainstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPA10.1590/1809-43922001312262info:eu-repo/semantics/openAccessAFFONSO,Elizabeth Gusmãoeng2015-05-29T00:00:00Zoai:scielo:S0044-59672001000200249Revistahttps://acta.inpa.gov.br/PUBhttps://old.scielo.br/oai/scielo-oai.phpacta@inpa.gov.br||acta@inpa.gov.br1809-43920044-5967opendoar:2015-05-29T00:00Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.none.fl_str_mv |
Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae) |
title |
Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae) |
spellingShingle |
Respiratory characteristics of Hoplostenum littorale (Siluriformes, Callichthyidae) AFFONSO,Elizabeth Gusmão Adaptation air-breathing behavior hematology intraerythrocytic phosphate blood Bohr effect |
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) |
author |
AFFONSO,Elizabeth Gusmão |
author_facet |
AFFONSO,Elizabeth Gusmão |
author_role |
author |
dc.contributor.author.fl_str_mv |
AFFONSO,Elizabeth Gusmão |
dc.subject.por.fl_str_mv |
Adaptation air-breathing behavior hematology intraerythrocytic phosphate blood Bohr effect |
topic |
Adaptation air-breathing behavior hematology intraerythrocytic phosphate blood Bohr effect |
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. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672001000200249 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672001000200249 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1809-43922001312262 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
dc.source.none.fl_str_mv |
Acta Amazonica v.31 n.2 2001 reponame:Acta Amazonica instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
instname_str |
Instituto Nacional de Pesquisas da Amazônia (INPA) |
instacron_str |
INPA |
institution |
INPA |
reponame_str |
Acta Amazonica |
collection |
Acta Amazonica |
repository.name.fl_str_mv |
Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA) |
repository.mail.fl_str_mv |
acta@inpa.gov.br||acta@inpa.gov.br |
_version_ |
1752129835703992320 |