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Pioneer access of the foam nest bacterial community of Leptodactylidae frogs and its biotechnological potential.
Braz J Biol
June 2024
Universidade Federal do Ceará - UFC, Departamento de Biologia, Fortaleza, CE, Brasil.
Many anuran amphibians deposit their eggs in foam nests, biostructures that help protect the eggs and tadpoles from predators. Currently, there are no other identification and description studies of the cultivable microbiota role in the nests of the Leptodactylid frogs such as Physalaemus cuvieri, Leptodactylus vastus and Adenomera hylaedactyla. This study aimed to isolate and identify the culturable bacteria from these three anuran species' nests, as well as to prospect enzymes produced by this microbiota.
View Article and Find Full Text PDFMineral profile and histopathological findings in the liver of white-lipped frog (Leptodactylidae) from the morphoclimatic domain of the Caatingas, Brazil.
Environ Sci Pollut Res Int
February 2024
Postgraduate Program in Animal Bioscience (PPGBA), Rural Federal University of Pernambuco (UFRPE), Rua Dom Manuel de Medeiros, S/N, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
This study aimed to investigate the mineral profile and histopathological findings in the liver of Leptodactylus macrosternum (white-lipped frog) and to assess the association between melanomacrophage areas and hepatic fungal granuloma with several factors such as weight, snout-cloacal length, sex, hepatosomatic index, season (dry and rainy), and condition factor K. A total of 135 frogs of different ages were collected from three areas in the city of Petrolina, Pernambuco, with varying land use (conventional agriculture, organic agriculture, and Caatinga stricto sensu). The liver of all specimens exhibited changes such as granulomatous lesions, inflammatory cell infiltrate, blood vessel congestion, and sinusoid dilation.
View Article and Find Full Text PDFEarly onset of urea synthesis and ammonia detoxification pathways in three terrestrially developing frogs.
J Comp Physiol B
October 2023
Department of Biology, Boston University, Boston, MA, USA.
Frogs evolved terrestrial development multiple times, necessitating mechanisms to avoid ammonia toxicity at early stages. Urea synthesis from ammonia is a key adaptation that reduces water dependence after metamorphosis. We tested for early expression and plasticity of enzymatic mechanisms of ammonia detoxification in three terrestrial-breeding frogs: foam-nest-dwelling larvae of Leptodactylus fragilis (Lf) and arboreal embryos of Hyalinobatrachium fleischmanni (Hf) and Agalychnis callidryas (Ac).
View Article and Find Full Text PDFNeotropical Frog Foam Nest's Microbiomes.
Microorganisms
March 2023
Laboratório de Recursos Genéticos, Departamento de Biologia, Universidade Federal do Ceará, Av. Humberto Monte 2977, Campus do Pici, Bloco 909, Fortaleza 60455-760, Brazil.
Amphibian foam nests are unique microenvironments that play a crucial role in the development of tadpoles. They contain high levels of proteins and carbohydrates, yet little is known about the impact of their microbiomes on tadpole health. This study provides a first characterization of the microbiome of foam nests from three species of Leptodactylids (, , and ) by investigating the DNA extracted from foam nests, adult tissues, soil, and water samples, analyzed via 16S rRNA gene amplicon sequencing to gain insight into the factors driving its composition.
View Article and Find Full Text PDFThe effect of heterospecific and conspecific competition on inter-individual differences in tungara frog tadpole () behavior.
Behav Ecol
January 2023
Institute of Ecology and Evolution, School of Biological Sciences, University of Edinburgh, West Mains Road, EH9 3JT, UK.
Repeated social interactions with conspecifics and/or heterospecifics during early development may drive the differentiation of behavior among individuals. Competition is a major form of social interaction and its impacts can depend on whether interactions occur between conspecifics or heterospecifics and the directionality of a response could be specific to the ecological context that they are measured in. To test this, we reared tungara frog tadpoles () either in isolation, with a conspecific tadpole or with an aggressive heterospecific tadpole, the whistling frog tadpole ().
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