Zobrazeno 1 - 10
of 239
pro vyhledávání: '"Roy E. Weber"'
Autor:
Anthony V Signore, Phillip R Morrison, Colin J Brauner, Angela Fago, Roy E Weber, Kevin L Campbell
Publikováno v:
eLife, Vol 12 (2023)
The extinct Steller’s sea cow (Hydrodamalis gigas; †1768) was a whale-sized marine mammal that manifested profound morphological specializations to exploit the harsh coastal climate of the North Pacific. Yet despite first-hand accounts of their b
Externí odkaz:
https://doaj.org/article/9064cfac40364a85829042713f263289
Publikováno v:
Acta Amazonica, Vol 8, Iss 4 suppl 1, Pp 219-226 (1978)
Resumo As propriedades respiratórias do sangue da piranha, são diferentes das de outros peixes, primariamente pela alta capacidade tamponante do CO2 (ΔHCO-3/Δ pH = 19,6 mmol/L para o sangue oxigenado e 39,1 mmol/1 para o sangue desoxigenado). A c
Externí odkaz:
https://doaj.org/article/89d4922c52c44a079272564b58cbc428
Autor:
Roy E. Weber, Stephen C. Wood
Publikováno v:
Acta Amazonica, Vol 8, Iss 4 suppl 1, Pp 239-245 (1978)
Resumo São estudados o equilíbrio da oxigênio de hemoglobinas de Hypostomus e Pterygoplichthys e suas sensibilidades ao nucleosídio trifosfatos eritrocítico (NTP), ATP e guanosina trifosfato (GTP) para investigar o mecanismo pelo qual o sangue s
Externí odkaz:
https://doaj.org/article/e911ff0d984c4325ae614cf4a0fa81de
Publikováno v:
Acta Amazonica, Vol 8, Iss 4 suppl 1, Pp 247-250 (1978)
Resumo O cascudo (Hypostomus sp.) induzido por água hipóxica a respirar ar apresentou o mesmo pH (7,39 a 30°C) que os peixes mantidos em água bem oxigenada e dependentes apenas da ventilação branquial (pH 7,41). Ocorreu retenção do CO2(aument
Externí odkaz:
https://doaj.org/article/72d9c242e7bc4ae08675e02ff9bd8cd3
Publikováno v:
Acta Amazonica, Vol 8, Iss 4 suppl 1, Pp 167-172 (1978)
Resumo Afinidades pelo oxigênio do sangue, concentrações eritrocíticas de nucleosídeo trifosfato (NTP) e outros parâmetros hematológicos, foram medidos em peixes de respiração aérea facultativa do Amazonas, depois da aclimatação em água
Externí odkaz:
https://doaj.org/article/49c829ab599b40c0961be6fc43779f8d
Publikováno v:
Acta Amazonica, Vol 8, Iss 4 suppl 1, Pp 311-321 (1978)
Resumo O hematócrito (43%) e a capacidade de ligação de O (18,8 ml O2 100 ml. sangue) de Trichechus inunguis são baixos ao serem comparados com outros mamíferos mergulhadores, mas são similares aos de mamíferos terrestres. Hb fracionada de pei
Externí odkaz:
https://doaj.org/article/82587cc62421445aa65ab3549120d3b9
Autor:
Robert L. Garlick, Bonnie J. Davis, Martha Farmer, Hans Jorgen Fyhn, Unni E. H. Fyhn, Robert W. Noble, Dennis A. Powers, Austen Riggs, Roy E. Weber
Publikováno v:
Acta Amazonica, Vol 8, Iss 4 suppl 1, Pp 323-330 (1978)
Resumo Mediram-se o equilíbrio e a cinética de ligação do oxigênio pelo sangue e hemoglobina de adultos e fetos de Typholonectes compressicauda. A afinidade pelo oxigênio do sangue fetal é mais alta do que a do sangue do adulto. A eletroforese
Externí odkaz:
https://doaj.org/article/73fc8a285c9e4027bf8a3140cd723ce5
Autor:
Chandrasekhar Natarajan, Agnieszka Jendroszek, Amit Kumar, Roy E Weber, Jeremy R H Tame, Angela Fago, Jay F Storz
Publikováno v:
PLoS Genetics, Vol 14, Iss 4, p e1007331 (2018)
During the adaptive evolution of a particular trait, some selectively fixed mutations may be directly causative and others may be purely compensatory. The relative contribution of these two classes of mutation to adaptive phenotypic evolution depends
Externí odkaz:
https://doaj.org/article/e1779528ddcd417a9902f6bfbd26d3b0
Autor:
Anthony V. Signore, Phillip R. Morrison, Colin J. Brauner, Angela Fago, Roy E. Weber, Kevin L. Campbell
Publikováno v:
Signori, A V, Morrison, P R, Brauner, C J, Fago, A, Weber, R E & Campbell, K L 2023, ' Evolution of an extreme hemoglobin phenotype contributed to the sub-Arctic specialization of extinct Steller's sea cows ', eLife, vol. in press .
The extinct Steller’s sea cow (Hydrodamalis gigas; †1768) was a whale-sized marine mammal that manifested profound morphological specializations to exploit the harsh coastal climate of the North Pacific. Yet despite first-hand accounts of their b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3feed46da681bc762fb4b3a99c11d000
https://doi.org/10.1101/2022.08.29.505768
https://doi.org/10.1101/2022.08.29.505768
Publikováno v:
Comparative biochemistry and physiology : A : molecular & integrative physiology
Weber, R E, Damsgaard, C, Fago, A, Val, A L & Moens, L 2022, ' Ontogeny of hemoglobin‑oxygen binding and multiplicity in the obligate air-breathing fish Arapaima gigas ', Comparative Biochemistry and Physiology-Part A: Molecular & Integrative Physiology, vol. 268, 111190 . https://doi.org/10.1016/j.cbpa.2022.111190
Weber, R E, Damsgaard, C, Fago, A, Val, A L & Moens, L 2022, ' Ontogeny of hemoglobin‑oxygen binding and multiplicity in the obligate air-breathing fish Arapaima gigas ', Comparative Biochemistry and Physiology-Part A: Molecular & Integrative Physiology, vol. 268, 111190 . https://doi.org/10.1016/j.cbpa.2022.111190
The evolutionary and ontogenetic changes from water-to air-breathing result in major changes in the cardio-respiratory systems. However, the potential changes in hemoglobin's (Hb) oxygen binding properties during ontogenetic transitions to air-breath