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Environmental microbial reservoir influences the bacterial communities associated with Hydra oligactis.
Sci Rep
December 2024
MTA-DE "Momentum" Ecology, Evolution & Developmental Biology Research Group, Dept. of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary.
The objective to study the influence of microbiome on host fitness is frequently constrained by spatial and temporal variability of microbial communities. In particular, the environment serves as a dynamic reservoir of microbes that provides potential colonizers for animal microbiomes. In this study, we analyzed the microbiome of Hydra oligactis and corresponding water samples from 15 Hungarian lakes to reveal the contribution of environmental microbiota on host microbiome.
View Article and Find Full Text PDFStochastic morphological swings in regeneration: A manifestation of noisy canalized morphogenesis.
Proc Natl Acad Sci U S A
January 2025
Department of Physics and Network Biology Research Laboratories, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Animal morphogenesis, the development of an organism's body form, is commonly perceived as a directed and almost deterministic process. However, noise and stochastic fluctuations are ubiquitous in biological systems. The questions on the role of fluctuations in morphogenesis and what ensures the robustness of this process under noisy conditions remain elusive.
View Article and Find Full Text PDFNeuroanatomical subtypes of tobacco use disorder and relationship with clinical and molecular features.
Prog Neuropsychopharmacol Biol Psychiatry
December 2024
Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University, China. Electronic address:
Background: Individual neurobiological heterogeneity among patients with tobacco use disorder (TUD) hampers the identification of neuroimaging phenotypes.
Methods: The current study recruited 122 TUD individuals and 57 healthy controls, and obtained their 3D-T1 images. Heterogeneity through discriminative analysis (HYDRA) was applied to uncover the potential subtype of TUD where regional gray matter volume (GMV) was treated as the feature.
Evaluation of the toxic potential of ethyl methanesulphonate (EMS) on .
Toxicol Rep
December 2024
Department of Zoology, School of Sciences, IFTM University, Moradabad, Uttar Pradesh, India.
The effect of EMS at final concentration of 0.09, 0.18, 0.
View Article and Find Full Text PDFTowards the standardization of Hydra vulgaris bioassay for toxicity assessments of liquid samples.
Ecotoxicol Environ Saf
December 2024
Aquatic Contaminants Research Division, Environment and Climate Change Canada, Montréal, Québec, Canada. Electronic address:
The Hydra vulgaris bioassay is recognized as sensitive invertebrate test species for toxicity assessment of real-life environmental mixtures for enforcement and monitoring investigations. The purpose of this study was to characterize the intra-laboratory variability, study the influence of environmental variables (temperature, luminosity, inter-individual and day of analysis) on ZnSO toxicity, a reference model toxicant for hydra. The sublethal (effect concentration for 50 % of hydra-EC50) and lethal (lethal concentration for 50 % of hydra-LC50) were determined based on characteristic morphological changes for this species.
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