Buscar
Mostrando ítems 1-10 de 42
Functional assessment of toad parotoid macroglands: A study based on poison replacement after mechanical compression
(ElsevierOxford, 2014-09)
Toads have a pair of parotoid macroglands behind the eyes that secrete poison used in passive defence against predators. These macroglands are composed of juxtaposed alveoli, each one bearing a syncytial gland, all connected ...
Morphological diversity in the parotoid macroglands of neotropical true toads (Anura: Bufonidae) and its association with the release of glandular secretion
(Elsevier Gmbh, 2021-09)
The parotoid macrogland in toads of the family Bufonidae is a complex structure mainly related to a defensive function. It presents considerable variability among species regarding their morphology, chemical nature of the ...
Post-metamorphic development of skin glands in a true toad: Parotoids versus dorsal skin
(Wiley-liss, Div John Wiley & Sons Inc, 2017-05)
Chemical defenses in amphibians are a common antipredatory and antimicrobial strategy related to the presence of dermal glands that synthesize and store toxic or unpalatable substances. Glands are either distributed ...
MALDI-MS argininyl bufadienolide esters fingerprint from parotoid gland secretions of Rhinella arenarum : age, gender and seasonal variation
(John Wiley & Sons Ltd, 2018-06)
In many amphibians, the granular glands can be grouped in special regions forming macroglands. This is the case of toads, characterized by the presence of a pair of parotoid macroglands, strategically located to give ...
Diversity and evolution of the parotoid macrogland in true toads (Anura: Bufonidae)
(Wiley Blackwell Publishing, Inc, 2019-09)
Skin glands in amphibians are either distributed throughout the skin or aggregated in multiglandular structures such as the parotoids typical of most species of Bufonidae. Although many early divergent and derived bufonids ...
Morphological Changes in Skin Glands During Development in Rhinella Arenarum (Anura: Bufonidae)
(Wiley-liss, Div John Wiley & Sons Inc, 2016-01)
Avoiding predation is critical to survival of animals; chemical defenses represent a common strategy among amphibians. In this study, we examined histologically the morphology of skin glands and types of secretions related ...
Regeneracao das macroglandulas parotoides do sapo Rhinella icterica apos a compressao mecanica
(Universidade Federal de São Paulo (UNIFESP), 2010)
Os sapos apresentam um par de macroglandulas parotoides, secretoras de veneno usado na defesa passiva contra predadores. Essas macroglandulas sao compostas por alveolos justapostos, preenchidos por glandulas sinciciais ...
Histological and immunohistochemical characterization of the integument and parotoids glands Rhinella bergi (Anura: Bufsonidae): Development and differentiation
(Elsevier Gmbh, Urban & Fischer Verlag, 2019-04)
A detailed description of the tegument and parotoid glands of pre-metamorphic, post-metamorphic, juvenile and adult individuals of Rhinella bergi is presented to provide an exhaustive analysis of the integumentary ...
Avaliação da atividade imunomoduladora de extratos de peles e glândulas parotóides de anuros do semi-árido brasileiro
(Universidade Estadual de Feira de Santana, 2007)
(Avaliação da atividade imunomoduladora de extratos de peles e glândulas parotóides de anuros do semi-árido
brasileiro) – A pele dos anfíbios possui uma variedade de produtos químicos com diversas atividades biológicas. ...