Colouration matters in dull toads: ultraviolet adornment for ladies and agrochemicals fading effects

Tartu, Sabrina; Lorrain-Soligon, Léa; Cheron, Marion; Dupoué, Andréaz; Brischoux, François

doi:10.1007/s00442-023-05482-y

Cited by 1 publication

(1 citation statement)

References 108 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous studies conducted on the spined toad, Bufo spinosus , have associated AMPA exposure with numerous adverse effects, such as higher embryonic and larval mortality, increased oxidative stress in tadpoles (Cheron et al, 2022; Cheron and Brischoux, 2023, 2020) and altered colouration in adult males (Tartu et al, 2023). In addition, in a companion study using the same individuals as the present one, we reported that environmentally relevant concentrations of AMPA (0.4 µg L -1 ) led to increased deformity rate upon hatching and increased development length, with effects depending on the habitat of origin of the parents (agricultural versus forest, Tartu et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Maternal body condition affects the response of larval spined toads’ faecal microbiome to a widespread contaminant

Tartu,

Pollet,

Clavereau

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

Glyphosate’s primary metabolite, aminomethylphosphonic acid (AMPA) is the most detected pollutant in surface waters. Recent studies have raised concerns regarding its toxicity, yet the involved underlying mechanisms remain poorly understood. A disruption of the gut microbiome, which plays a crucial role in host health, could be the mediator of most adverse effects. We investigated the impact of AMPA exposure on the gut microbiome of spined toad tadpoles (Bufo spinosus). We hypothesized that AMPA could alter the gut microbiota composition and that these effects could depend on the microbiota source. We exposed tadpoles to minute concentrations of AMPA and analyzed their faecal microbiota using 16S rRNA gene sequencing as a proxy of the gut microbiota. AMPA exposure decreased the gut bacterial biomass and affected bacterial community composition of tadpole’s faeces. Furthermore, we observed interactions between AMPA exposure and maternal body condition on the Bacteroidota and Actinobacteriota phyla abundances. This suggests a maternal effect on early-life microbial colonizers that could influence the response of the gut microbiome to AMPA. These findings highlight the importance of considering the gut microbiome when studying the effects of environmental contaminants. Further research is needed to elucidate the long-term implications of this microbiome alteration for amphibian health.

show abstract