Escudo de la República de Colombia
Sistema Nacional de Biliotecas - Repositorio Institucional Universidad Nacional de Colombia Biblioteca Digital - Repositorio Institucional UN Sistema Nacional de Bibliotecas UN

La secreción cutánea, instrumento sistemático

Low, Bobbie S. (1973) La secreción cutánea, instrumento sistemático. Caldasia; Vol. 11, núm. 52 (1973); 73-97 Caldasia; Vol. 11, núm. 52 (1973); 73-97 2357-3759 0366-5232 .

Texto completo

[img]
Vista previa
PDF
10MB

URL oficial: http://revistas.unal.edu.co/index.php/cal/article/...

Resumen

The Author points out information lacking in morphological Systematics for evolutionary studies of amphibian taxa, relieving physiological and biochemical analysis as valuable tools of philogenetic interrelationships study.  After a brief mention of Urodela cutaneous secretion, with polypeptideshormone-like structured as chief constituent, and some steroid anuran toxic samples, there is an explanation about chromatographic isolation of indole derivatives. An important conclusion is the participation of 5-hydroxitryptaminein almost all Bufo species cutaneous secretion more concentrated when the species is more primitive; chemical affinities are represented by polygonal graphs; high affinity indexes seem to suggest us remote dispersions in earlyevolution stages; these affinities are more common between African and Tropical American Species, whereas Middle East and African Bufonidae show a low toxic affinity; Asian Bufonidae are not much analogous in cutaneous secretion composition with New World and African specimens. Actually, chemical analysis suggests some generalizations about philogenetic interrelationships and primitive spreading of early evolution specimens of anura., The Author points out information lacking in morphological Systematics for evolutionary studies of amphibian taxa, relieving physiological and biochemical analysis as valuable tools of philogenetic interrelationships study.  After a brief mention of Urodela cutaneous secretion, with polypeptideshormone-like structured as chief constituent, and some steroid anuran toxic samples, there is an explanation about chromatographic isolation of indole derivatives. An important conclusion is the participation of 5-hydroxitryptaminein almost all Bufo species cutaneous secretion more concentrated when the species is more primitive; chemical affinities are represented by polygonal graphs; high affinity indexes seem to suggest us remote dispersions in earlyevolution stages; these affinities are more common between African and Tropical American Species, whereas Middle East and African Bufonidae show a low toxic affinity; Asian Bufonidae are not much analogous in cutaneous secretion composition with New World and African specimens. Actually, chemical analysis suggests some generalizations about philogenetic interrelationships and primitive spreading of early evolution specimens of anura.

Tipo de documento:Artículo - Article
Palabras clave:Ciencias Naturales, Biología, Plantas, animales, Historia Natural, Paleobotánica, Paleozoología, Ornitología, Herpetología, Botánica, Entomología, Parasitología, Ictiología, Secreción Cutánea, Alcaloides, Cromatografía, Secreción Cutánea, Alcaloides, Cromatografía
Unidad administrativa:Revistas electrónicas UN > Caldasia
Código ID:34132
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :01 Julio 2014 12:49
Ultima modificación:25 May 2018 20:41
Ultima modificación:25 May 2018 20:41
Exportar:Clic aquí
Estadísticas:Clic aquí
Compartir:

Solamente administradores del repositorio: página de control del ítem

Vicerrectoría de Investigación: Número uno en investigación
Indexado por:
Indexado por Scholar Google WorldCat DRIVER Metabiblioteca OAIster BASE BDCOL Registry of Open Access Repositories SNAAC Red de repositorios latinoamericanos eprints Open archives La referencia Tesis latinoamericanas OpenDOAR CLACSO
Este sitio web se ve mejor en Firefox