Digestive morphology and enzyme activity in the Andean toad, <i>Bufo spinulosus</i>

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dc.contributor.authorNaya, DE
dc.contributor.authorFarfán, G
dc.contributor.authorSabat, P
dc.contributor.authorMéndez, MA
dc.contributor.authorBozinovic, F
dc.date.accessioned2025-01-21T01:07:10Z
dc.date.available2025-01-21T01:07:10Z
dc.date.issued2005
dc.description.abstractGut plasticity is a trait with implications on animal performance. However, and despite their importance as study models in physiology, research on gut flexibility in amphibians is scarce. In the present work, we analyse digestive adjustments of Bufo spinulosus adult individuals to cope with changes in diet quality and quantity at two organizational levels (i.e., digestive morphology and enzymes). We found that changes in gut:size are related to the amount of food ingested, but not to diet composition. This is in agreement with "the gut seasonal change" hypothesis and offers a proximal explanation for this change. Digestive enzymatic activity (maltase and aminopeptidase-N) did not change with diet quality or quantity, which agrees with the hypothesis of "bard-wired physiology in adult amphibians". Both hypotheses are in agreement with the general theoretical framework of gut phenotypic flexibility when interpreted in light of amphibian natural history. In addition, our results indicate that the correlation between feeding frequency and the level of gut up-regulation proposed for interspecific comparisons may also be found at the intraspecific level. (c) 2004 Elsevier Inc. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cbpb.2004.11.006
dc.identifier.eissn1531-4332
dc.identifier.issn1095-6433
dc.identifier.urihttps://doi.org/10.1016/j.cbpb.2004.11.006
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96287
dc.identifier.wosidWOS:000227773100001
dc.issue.numero2
dc.language.isoen
dc.pagina.final170
dc.pagina.inicio165
dc.revistaComparative biochemistry and physiology a-molecular & integrative physiology
dc.rightsacceso restringido
dc.subjectamphibians
dc.subjectBufo spinulosus
dc.subjectdigestive theory
dc.subjectdigestive enzymes
dc.subjectfood intake
dc.subjectfood quality
dc.subjectgastrointestinal tract
dc.subjectgut size
dc.subjectphenotypic flexibility
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleDigestive morphology and enzyme activity in the Andean toad, <i>Bufo spinulosus</i>
dc.typeartículo
dc.volumen140
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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