Eye ontogeny in Pleurodema bufoninum: A comparison with Pleurodema somuncurense (Anura, Leptodactylidae)

Vision is one of the main sensory systems in amphibians, and the eye structure is highly associated with habitat conditions. The ontogeny, as well as the adult structure, of the eye has been studied in only a few species. The life change after metamorphosis is accompanied by changes in the visual en...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Volonteri, C., Barrasso, D.A., Cotichelli, L., Basso, N.G., Hermida, G.N.
Formato: JOUR
Materias:
development
meniscus
umbraculum
visual system
anatomy and histology
animal
Anura
comparative study
cytology
eye
growth, development and aging
iris
larva
lens
Animals
Eye
Iris
Larva
Lens, Crystalline
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03622525_v278_n7_p896_Volonteri
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03622525_v278_n7_p896_Volonteri
record_format dspace
spelling todo:paper_03622525_v278_n7_p896_Volonteri2023-10-03T15:26:57Z Eye ontogeny in Pleurodema bufoninum: A comparison with Pleurodema somuncurense (Anura, Leptodactylidae) Volonteri, C. Barrasso, D.A. Cotichelli, L. Basso, N.G. Hermida, G.N. development meniscus umbraculum visual system anatomy and histology animal Anura comparative study cytology eye growth, development and aging iris larva lens Animals Anura Eye Iris Larva Lens, Crystalline Vision is one of the main sensory systems in amphibians, and the eye structure is highly associated with habitat conditions. The ontogeny, as well as the adult structure, of the eye has been studied in only a few species. The life change after metamorphosis is accompanied by changes in the visual environment. The aim of this work is to describe the eye ontogeny of Pleurodema bufoninum and to compare it with that of Pleurodema somuncurense. Specimens of both Pleurodema species were processed for histology analysis at different stages of development, including the tadpole, postmetamorphic, and adult forms. Eyes in both Pleurodema species are composed of the 3 tunics, tunica fibrosa, tunica vasculosa, and tunica interna, and the lens. Additionally, in both, the iris presents a projection on its dorsal and ventral free ends that screens the cornea. This structure has been reported in the eye of several anuran species and is called the umbraculum, meniscus or pupillary nodule. Our results show that the structures related to light capture (retina and lens) appear early in larval life, while the components of the terrestrial-life eye (scleral cartilage, specialized cornea, eyelids, nictitating membrane, and Harderian's gland) do not develop until the metamorphic climax, when the tadpole leaves the water. The adult eyes of P. bufoninum and P. somuncurense are very similar in structure and development. © 2017 Wiley Periodicals, Inc. Fil:Hermida, G.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03622525_v278_n7_p896_Volonteri
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic development
meniscus
umbraculum
visual system
anatomy and histology
animal
Anura
comparative study
cytology
eye
growth, development and aging
iris
larva
lens
Animals
Anura
Eye
Iris
Larva
Lens, Crystalline
spellingShingle development
meniscus
umbraculum
visual system
anatomy and histology
animal
Anura
comparative study
cytology
eye
growth, development and aging
iris
larva
lens
Animals
Anura
Eye
Iris
Larva
Lens, Crystalline
Volonteri, C.
Barrasso, D.A.
Cotichelli, L.
Basso, N.G.
Hermida, G.N.
Eye ontogeny in Pleurodema bufoninum: A comparison with Pleurodema somuncurense (Anura, Leptodactylidae)
topic_facet development
meniscus
umbraculum
visual system
anatomy and histology
animal
Anura
comparative study
cytology
eye
growth, development and aging
iris
larva
lens
Animals
Anura
Eye
Iris
Larva
Lens, Crystalline
description Vision is one of the main sensory systems in amphibians, and the eye structure is highly associated with habitat conditions. The ontogeny, as well as the adult structure, of the eye has been studied in only a few species. The life change after metamorphosis is accompanied by changes in the visual environment. The aim of this work is to describe the eye ontogeny of Pleurodema bufoninum and to compare it with that of Pleurodema somuncurense. Specimens of both Pleurodema species were processed for histology analysis at different stages of development, including the tadpole, postmetamorphic, and adult forms. Eyes in both Pleurodema species are composed of the 3 tunics, tunica fibrosa, tunica vasculosa, and tunica interna, and the lens. Additionally, in both, the iris presents a projection on its dorsal and ventral free ends that screens the cornea. This structure has been reported in the eye of several anuran species and is called the umbraculum, meniscus or pupillary nodule. Our results show that the structures related to light capture (retina and lens) appear early in larval life, while the components of the terrestrial-life eye (scleral cartilage, specialized cornea, eyelids, nictitating membrane, and Harderian's gland) do not develop until the metamorphic climax, when the tadpole leaves the water. The adult eyes of P. bufoninum and P. somuncurense are very similar in structure and development. © 2017 Wiley Periodicals, Inc.
format JOUR
author Volonteri, C.
Barrasso, D.A.
Cotichelli, L.
Basso, N.G.
Hermida, G.N.
author_facet Volonteri, C.
Barrasso, D.A.
Cotichelli, L.
Basso, N.G.
Hermida, G.N.
author_sort Volonteri, C.
title Eye ontogeny in Pleurodema bufoninum: A comparison with Pleurodema somuncurense (Anura, Leptodactylidae)
title_short Eye ontogeny in Pleurodema bufoninum: A comparison with Pleurodema somuncurense (Anura, Leptodactylidae)
title_full Eye ontogeny in Pleurodema bufoninum: A comparison with Pleurodema somuncurense (Anura, Leptodactylidae)
title_fullStr Eye ontogeny in Pleurodema bufoninum: A comparison with Pleurodema somuncurense (Anura, Leptodactylidae)
title_full_unstemmed Eye ontogeny in Pleurodema bufoninum: A comparison with Pleurodema somuncurense (Anura, Leptodactylidae)
title_sort eye ontogeny in pleurodema bufoninum: a comparison with pleurodema somuncurense (anura, leptodactylidae)
url http://hdl.handle.net/20.500.12110/paper_03622525_v278_n7_p896_Volonteri
work_keys_str_mv AT volonteric eyeontogenyinpleurodemabufoninumacomparisonwithpleurodemasomuncurenseanuraleptodactylidae
AT barrassoda eyeontogenyinpleurodemabufoninumacomparisonwithpleurodemasomuncurenseanuraleptodactylidae
AT cotichellil eyeontogenyinpleurodemabufoninumacomparisonwithpleurodemasomuncurenseanuraleptodactylidae
AT bassong eyeontogenyinpleurodemabufoninumacomparisonwithpleurodemasomuncurenseanuraleptodactylidae
AT hermidagn eyeontogenyinpleurodemabufoninumacomparisonwithpleurodemasomuncurenseanuraleptodactylidae
_version_ 1807316631544659968

Ejemplares similares