Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/8870
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Population variability in heat shock proteins among three Antarctic penguin species |
Autor: | Barbosa, Andrés CSIC ORCID ; Merino, Santiago CSIC ORCID ; Benzal, Jesús CSIC ORCID; Martínez, Javier CSIC ORCID; García-Fraile, Sonia CSIC | Palabras clave: | Antarctica Ecophysiology Environmental gradient Heat shock proteins Pygoscelis adeliae Pygoscelis antarctica Pygoscelis papua Stress |
Fecha de publicación: | 2007 | Editor: | Springer Nature | Citación: | Polar Biology, 30:1239-1244 | Resumen: | Heat shock proteins (HSPs) are synthesised under stressful conditions such as exposure to elevated temperatures, contamination, free radicals, UV light or pathophysiological states resulting from parasites and/or pathogens. HSPs function to protect cells by means of modulation of protein folding. In Antarctica, these proteins have been studied in such organisms as protozoa and fishes, without attention to geographical variation. We studied the variation of HSP70 and HSP60 levels in Gentoo, Adelie and Chinstrap penguins among different populations along the Antarctic Peninsula from King George Island (62°15′S) to Avian Island (67°46′S). Our results show that the northern population of Gentoo penguin showed higher levels of HSP70 and HSP60 than the southern population. High temperature, human impact and immunity as a proxy for parasites and diseases in northern locations could explain such variation. Adelie penguin only showed significant geographical variation in HSP70, increasing north to south, a pattern perhaps related to increased UV radiation and decreased temperatures from north to south. Chinstrap penguin shows no population differences in the variation in neither HSP70 nor HSP60, although HSP70 showed marginally significant differences. Sexual differences in the level of these proteins are also discussed. | Versión del editor: | http://dx.doi.org/10.1007/s00300-007-0284-0 | URI: | http://hdl.handle.net/10261/8870 | DOI: | 10.1007/s00300-007-0284-0 | ISSN: | 0722-4060 | E-ISSN: | 1432-2056 |
Aparece en las colecciones: | (EEZA) Artículos |
Mostrar el registro completo
CORE Recommender
SCOPUSTM
Citations
14
checked on 20-abr-2024
WEB OF SCIENCETM
Citations
11
checked on 24-feb-2024
Page view(s)
353
checked on 21-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.