Histological Description of the Skin Glands of Phyllobates bicolor (Anura: Dendrobatidae) Using Three Staining Techniques

Moreno-Gómez, Freddy; Duque, Tania; Fierro, Leonardo; Arango, Juan Pablo Betancourt; Peckham, Xiomara; Asencio-Santofimio, Helberg

doi:10.4067/s0717-95022014000300022

Cited by 5 publications

(6 citation statements)

References 14 publications

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“…Nevertheless, various subtypes of serous glands with high morphological variability have been reported (Goniakowska-Witalinska and Kubiczek 1998, Delfino et al 1999, Warburg et al 2000, Nosi et al 2002, Brunetti et al 2012, Moreno-Gómez et al 2014.…”

Section: O Albicansmentioning

confidence: 99%

Comparative analysis of the integument of different tree frog species from Ololygon and Scinax genera (Anura: Hylidae)

Silva¹,

Silva-Soares²,

Brito-Gitirana³

2017

Zoologia

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ABSTRACT. The integuments of ten treefrog species of two genera from Scinaxnae -O. angrensis (Lutz, 1973), O. flavoguttata (Lutz & Lutz, 1939), O. humilis (Lutz & Lutz, 1954), O. perpusilla (Lutz & Lutz, 1939), O. v-signata (Lutz, 1968, Scinax hayii (Barbour, 1909), S. similis (Cochran, 1952), O. trapicheroi (Lutz & Lutz, 1954) and S. x-signatus (Spix, 1824) -were investigated using conventional and histochemical techniques of light microscopy, and polarized light microscopy. All integuments showed the basic structure of the anuran integument. Moreover, the secretory portions of exocrine glands, such as serous merocrine and apocrine glands, were found to be restricted to the spongious dermis. Lipid content occurred together with the heterogeneous secretory material of the glands with an apocrine secretion mechanism. In addition, clusters of these apocrine glands were present in the ventrolateral integument of some species. Melanophores were also visualized in all examined hylids. However, the occurrence of iridophores, detected through polarized light microscopy, varied according to the species. The Eberth-Katschenko layer occurred in the dorsal integument from both genera, but it was only present in the ventral integument of O. albicans, O. angrensis, O. flavoguttata, O. perpusilla and O. v-signata. Although the integument of all treefrogs showed the same basic structure, some characteristics were genus-specific; however, these features alone may not be used to distinguish both genera.

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Section: O Albicansmentioning

confidence: 99%

Comparative analysis of the integument of different tree frog species from Ololygon and Scinax genera (Anura: Hylidae)

Silva¹,

Silva-Soares²,

Brito-Gitirana³

2017

Zoologia

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“…The outer limit of epidermis exhibited weak keratinization. In Phyllobates bicolor (Moreno-Gómez, Duque, Fierro, Arango, Peckham, & Asencio-Santofimio, 2014), the epidermis was composed of lightly keratinized squamous epithelium in contrast to the keratinized epidermis reported for Rhinella granulosa (Chammas, Carneiro, Ferro, Antoniazzi, & Jared, 2015). The role of the epidermal keratin is to protect the tissue from mechanical friction (Gu & Coulombe, 2007).…”

Section: Discussionmentioning

confidence: 94%

A Histological Study on the Skin of Hyla savignyi (Anura: Hylidae)

Akat

Arıkan

2018

Commagene Journal of Biology

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Integument is a prominent defense line and is one of the organs for communication and contact with the external environment. The current study was designed to assess the histomorphological characteristics of the skin of Hyla savignyi. The ventral and dorsal skins of H. savignyi were composed of a stratified squamous epithelium and dermis like that of any other vertebrate. The dermis was made up of spongious dermis and compact dermis. In both ventral and dorsal integument samples, two types of cutaneous glands (granular, mucous) were identified. The lumen of granular glands was filled with secretory granules that showed strong acidophilic reaction. Mucous glands were lined by mucocytes and had an obvious lumen. Histomorphological characteristics of the skin did not show any individual variation.

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“…inguinalis ; see Grant, 2004 ), Dendrobates auratus , Epipedobates anthonyi (including specimens reported as E . tricolor ; for taxonomy see Graham et al, 2004 ; Tarvin et al, 2017 ), Mannophryne trinitatis , Oophaga histrionica , and Phyllobates terribilis (Neuwirth et al, 1979 ) and the OSGs and OMGs of Phyllobates bicolor (Delfino et al, 2010 ; Moreno‐Gómez et al, 2014 ), Ameerega picta (Prates et al, 2011 ), and Ectopoglossus saxatilis and Hyloxalus faciopunctulatus (Grant et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Structure and evolution of the sexually dimorphic integumentary swelling on the hands of dendrobatid poison frogs and their relatives (Amphibia: Anura: Dendrobatoidea)

et al. 2021

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The hands of adult males of many dendrobatid poison frogs and their relatives possess swelling formed by glandular tissue hypothesized to secrete courtship pheromones delivered to the female during cephalic amplexus. Variation in the occurrence and external morphology of the swelling of finger IV has provided important evidence for dendrobatoid systematics for decades, but its underlying structure has not been investigated. We undertook a detailed comparative analysis of the integument of the hand, including both external morphology and histology, of 36 species representing the diversity of dendrobatoid frogs and several close relatives. The swelling is caused by four densely packed, hypertrophic, morpho‐histochemical types of specialized mucous glands (SMGs). We observed type I SMGs on fingers II–V and the wrist, including areas that are not swollen, types II and IV exclusively on finger IV, and type III on finger IV and the wrist. Type I SMGs occur either in isolation or together with types II, III, or IV; types II, III, and IV never occur together or without type I. We delimited 15 characters to account for the variation in external morphology and the occurrence of SMGs. Our data suggest that type I SMGs are a new synapomorphy for Dendrobatoidea and that type II SMGs originated in either the most recent common ancestor (MRCA) of Dendrobatidae or independently in the MRCAs of Aromobatidae and Colostethinae, respectively, while types III and IV are restricted to Anomaloglossus. The discovery of these SMGs adds a new dimension to studies of poison frog reproductive biology, which have investigated acoustic, visual, and tactile cues in courtship, mating, and parental care across the diversity of Dendrobatoidea for decades but have almost entirely overlooked the possible role of chemical cues.

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Histological Description of the Skin Glands of Phyllobates bicolor (Anura: Dendrobatidae) Using Three Staining Techniques

Cited by 5 publications

References 14 publications

Comparative analysis of the integument of different tree frog species from Ololygon and Scinax genera (Anura: Hylidae)

Comparative analysis of the integument of different tree frog species from Ololygon and Scinax genera (Anura: Hylidae)

A Histological Study on the Skin of Hyla savignyi (Anura: Hylidae)

Structure and evolution of the sexually dimorphic integumentary swelling on the hands of dendrobatid poison frogs and their relatives (Amphibia: Anura: Dendrobatoidea)

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