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dc.contributor.author
Brzek, Pawel
dc.contributor.author
Ciminari, María Eugenia
dc.contributor.author
Kohl, Kevin
dc.contributor.author
Lessner, Krista
dc.contributor.author
Karasov, William
dc.contributor.author
Caviedes Vidal, Enrique Juan Raul
dc.date.available
2016-02-23T16:15:43Z
dc.date.issued
2013-06
dc.identifier.citation
Brzek, Pawel; Ciminari, María Eugenia; Kohl, Kevin; Lessner, Krista; Karasov, William; et al.; Effect of age and diet composition on activity of pancreatic enzymes in birds; Springer; Journal of Comparative Physiology B: Biochemical, Systems and Environmental Physiology; 183; 5; 6-2013; 685-697
dc.identifier.issn
0174-1578
dc.identifier.uri
http://hdl.handle.net/11336/4397
dc.description.abstract
Digestive enzymes produced by the pancreas and intestinal epithelium cooperate closely during food hydrolysis. Therefore, activities of pancreatic and intestinal enzymes processing the same substrate can be hypothe- sized to change together in unison, as well as to be adjusted to the concentration of their substrate in the diet. However, our knowledge of ontogenetic and diet-related changes in the digestive enzymes of birds is limited mainly to intes- tinal enzymes; it is largely unknown whether they are accompanied by changes in activities of enzymes produced by the pancreas. Here, we analyzed age- and diet-related changes in activities of pancreatic enzymes in five pas- serine and galloanserine species, and compared them with simultaneous changes in activities of intestinal enzymes. Mass-specific activity of pancreatic amylase increased with age in young house sparrows but not in zebra finches, in agreement with changes in typical dietary starch content and activity of intestinal maltase. However, we found little evidence for the presence of adaptive, diet-related modu- lation of pancreatic enzymes in both passerine and gal- loanserine species, even though in several cases the same birds adaptively modulated activities of their intestinal enzymes. In general, diet-related changes in mass-specific activities of pancreatic and intestinal enzymes were not correlated. We conclude that activity of pancreatic enzymes in birds is under strong genetic control, which enables evolutionary adjustment to typical diet composi- tion but is less adept for short term, diet-related flexibility.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Digestive Enzymes
dc.subject
Pancreas
dc.subject
Ontogeny
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Developmental Flexibility
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Biología del Desarrollo
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Effect of age and diet composition on activity of pancreatic enzymes in birds
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
183
dc.journal.number
5
dc.journal.pagination
685-697
dc.journal.pais
Alemania
dc.journal.ciudad
Heidelberg
dc.description.fil
Fil: Brzek, Pawel. University of Wisconsin. Department of Forest and Wildlife Ecology; Estados Unidos. University of Białystok. Institute of Biology; Polonia
dc.description.fil
Fil: Ciminari, María Eugenia. Universidad Nacional de San Luis. Facultad de Ciencias Humanas. Laboratorio de Biología "Profesor Enrique Cavides Codelia"; Argentina. Universidad Nacional de San Luis. Facultad de Quimica, Bioquimica y Farmacia. Departamento de Bioquímica y Ciencias Biológicas; Argentina
dc.description.fil
Fil: Kohl, Kevin. University of Wisconsin. Department of Forest and Wildlife Ecology; Estados Unidos. University of Utah. Department of Biology; Estados Unidos
dc.description.fil
Fil: Lessner, Krista. University of Wisconsin. Department of Forest and Wildlife Ecology; Estados Unidos
dc.description.fil
Fil: Karasov, William. University of Wisconsin. Department of Forest and Wildlife Ecology; Estados Unidos
dc.description.fil
Fil: Caviedes Vidal, Enrique Juan Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina. Universidad Nacional de San Luis. Facultad de Ciencias Humanas. Laboratorio de Biología "Profesor Enrique Cavides Codelia"; Argentina. Universidad Nacional de San Luis. Facultad de Quimica, Bioquimica y Farmacia. Departamento de Bioquímica y Ciencias Biológicas; Argentina
dc.journal.title
Journal of Comparative Physiology B: Biochemical, Systems and Environmental Physiology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s00360-012-0731-2
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/issn/0174-1578
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00360-012-0731-2
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3689912/
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