First case report on pathogenic fungus Fonsecaea sp. Negroni from skin of Pelophylax kl. esculentus L. in Serbia

During life, anuran individuals undergo drastic changes in the course of transition from aquatic to terrestrial habitat, when they are faced with metabolically demanding processes (growth, responses to developmental pressures), which result in increased production of reactive oxygen species (ROS), signaling molecules involved in development that can induce oxidative damage and stress. This situation can be further complicated by environmental influences. The aim of this study was to investigate oxidative stress parameters in naturally developing Pelophylax esculentus complex frogs during four developmental periods: premetamorphosis, prometamorphosis, metamorphic climax and juvenile stage, in order to examine changes in the response of the antioxidative system (AOS) and oxidative damage during the transition from aquatic to terrestrial life. Results show that ontogenetic shifts in anurans are accompanied by different levels of damage and AOS responses, which vary from the increased first-line enzymatic activities during the early period of development (premetamorphosis), through increased changes in the non-enzymatic complement during the metamorphic climax, to changes in both the enzymatic and non-enzymatic components observed in juvenile individuals.Premetamorphic individuals and individuals in metamorphosis displayed higher levels of lipid peroxidation, indicating that direct exposure to the environment for the first time and the modulation of organs are the most susceptible stages for oxidative damage. On the other hand, lower oxidative damage in juveniles points to the ability of their AOS to efficiently respond to challenges of the terrestrial environment. This study highlights the importance of ROS and the AOS of anurans in response to different developmental and/or environmental pressures that individuals face.

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New record for mycobiota of Serbia: A rare fungus Quambalaria cyanescens found in Pelophylax esculentus (Anura) skin microbiome

Stupar

Savković

Breka

et al. 2022

Genetika

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A rare basidiomycete Quambalaria cyanescens, documented so far on various substrates worldwide, was isolated from the skin of edible frog (Pelophylax esculentus) captured in South Banat. The fungal identification was based on sequencing of ITS region and BLAST analyses. The presence of Q. cyanescens in the amphibian skin microbiome is not only the first finding of this fungus in Serbia but also the recording of new ecological habitat for this rare species of micromycetes. Phylogenetic analyses revealed the high similarity of isolate in this study with foliar pathogens of Eucalyptus in Australia.

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First case report on pathogenic fungus Fonsecaea sp. Negroni from skin of Pelophylax kl. esculentus L. in Serbia

Cited by 3 publications

References 17 publications

A Variety of Fungal Species on the Green Frogs’ Skin (Pelophylax esculentus complex) in South Banat

A Variety of Fungal Species on the Green Frogs’ Skin (Pelophylax esculentus complex) in South Banat

Oxidative stress in Pelophylax esculentus complex frogs in the wild during transition from aquatic to terrestrial life

New record for mycobiota of Serbia: A rare fungus Quambalaria cyanescens found in Pelophylax esculentus (Anura) skin microbiome

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