Addition of Bdellovibrio to aquaculture water can significantly alter the distribution of microbial community on the gills and enhance the survival rate of Carassius auratus gibelio

Zhang, Yingying; Zhu, Zhu; Jiang, Yifeng; Ji, Tongwei; Bai, Hao; Zhao, Huijing; Yang, Hui

doi:10.1016/j.aquaculture.2023.739820

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…These phyla were both associated with neurotransmitter levels such as serotonin in the cerebral cortex and hippocampus in rats [53]. The phylum Bdellovibrionota was also positively associated with increased activity in our tadpole behavioural assays, and recent studies have described this phylum to contain natural antibiotics that positively influence gut microbial community composition through protection from pathogens [54], although to our knowledge it has yet to be associated with behavioural parameters in vertebrates. The phylum Firmicutes, one of the most abundant phyla across treatments, was negatively associated with tadpole activity.…”

Section: (B) Behavioural Assaysmentioning

confidence: 53%

Something in the water: aquatic microbial communities influence the larval amphibian gut microbiota, neurodevelopment and behaviour

Emerson,

Woodley

2024

Proc. R. Soc. B.

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Microorganisms colonize the gastrointestinal tract of animals and establish symbiotic host-associated microbial communities that influence vertebrate physiology. More specifically, these gut microbial communities influence neurodevelopment through the microbiota-gut-brain (MGB) axis. We tested the hypothesis that larval amphibian neurodevelopment is affected by the aquatic microbial community present in their housing water. Newly hatched Northern Leopard Frog ( Lithobates pipiens ) tadpoles were raised in pond water that was unmanipulated (natural) or autoclaved. Tadpoles raised in autoclaved pond water had a gut microbiota with reduced bacterial diversity and altered community composition, had decreased behavioural responses to sensory stimuli, were larger in overall body mass, had relatively heavier brains and had altered brain shape when compared with tadpoles raised in natural pond water. Further, the diversity and composition of the gut microbiota were associated with tadpole behavioural responses and brain measurements. Our results suggest that aquatic microbial communities shape tadpole behaviour and brain development, providing strong support for the occurrence of the MGB axis in amphibians. Lastly, the dramatic role played by aquatic microbial communities on vertebrate neurodevelopment and behaviour should be considered in future wildlife conservation efforts.

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Section: (B) Behavioural Assaysmentioning

confidence: 53%