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DNA damage triggers the death of green sea turtle-derived cells at high temperature.
Comp Biochem Physiol C Toxicol Pharmacol
January 2025
Graduate School of Science and Engineering, Iwate University, 4-3-5, Ueda, Morioka-city 020-8551, Japan.
As temperatures rise due to increasingly severe global warming, the effect of high temperatures on wildlife, including green sea turtles, is one of the issues that must be addressed to ensure the conservation of biodiversity. In the current study, we found that green sea turtle cell death due to apoptosis occurred at 37 °C, which suppressed cell proliferation. We also found that high temperature-induced heat stress led to the accumulation of DNA damage in green sea turtle cells.
View Article and Find Full Text PDFDistinct population-wide differences in contaminants and blood parameters in foraging green sea turtles.
Mar Pollut Bull
January 2025
School of Science, Technology and Engineering, University of the Sunshine Coast, Hervey Bay, Queensland 4655, Australia.
The rising diversity and concentration of contaminants have surpassed ecological thresholds, threatening marine ecosystems. The effects of pollutants on marine animals, particularly sea turtles, are receiving increased attention due to their role as indicators of human impacts. This study examined the health implications of contaminant exposure in three green turtle (Chelonia mydas) foraging sites in the southern Great Barrier Reef, Australia.
View Article and Find Full Text PDFResponsiveness to cold snaps by turtle embryos depends on exposure timing and duration.
Proc Biol Sci
January 2025
School of Biological Sciences, Illinois State University, Normal, IL 61790, USA.
Characterizing how organisms respond to transient temperatures may further our understanding of their susceptibility to climate change. Past studies in the freshwater turtle, , have demonstrated that the timing and duration of heat waves can have major implications for the response of genes involved in gonadal development and the production of female hatchlings. Yet, no study has considered how the response of these genes to transient cold snap exposure may affect gonadal development and the production of males.
View Article and Find Full Text PDFReproductive strategies in loggerhead sea turtle : polyandry and polygyny in a Southwest Atlantic rookery.
PeerJ
January 2025
Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo, Laboratório de Genética e Evolução Molecular, Vitória, Espírito Santo, Brazil.
Sea turtles are highly migratory and predominantly inhabit oceanic environments, which poses significant challenges to the study of their life cycles. Research has traditionally focused on nesting females, utilizing nest counts and mark-recapture methods, while male behavior remains understudied. To address this gap, previous studies have analyzed the genotypes of females and hatchlings to indirectly infer male genotypes and evaluate the extent of multiple paternity within populations.
View Article and Find Full Text PDFThiacloprid exposure disrupts the gut-liver axis and induces liver dysfunction in the Reeves' turtles (Mauremys reevesii).
Ecotoxicol Environ Saf
January 2025
Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, China. Electronic address:
As one of the neonicotinoid insecticides, thiacloprid (THI) is extensively used in agriculture and frequently detected in various aquatic environments, posing a potential threat to aquatic organisms. However, the effects of THI exposure on aquatic turtles remain unknown. In this study, we focused on investigating whether THI has a toxic effect on the gut-liver axis in aquatic turtles.
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