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Fabrication and characterization of fish oil emulsions stabilized by metal-phenolic network coatings-decorated Acipenser sturgeon protein.
Food Chem
January 2025
Lab of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, No. 381 Wushan Road, Guangzhou, Guangdong 510640, China. Electronic address:
Acipenser sturio fish oil, rich in ω-3 PUFAs, offers potential for functional foods but is prone to oxidative degradation. This study investigates enhancing antioxidant and emulsifying properties of the oil by modifying Acipenser sturgeon protein (ASP) using metal-phenolic networks (MPNs). ASP was coated with EGCG (epigallocatechin-3-gallate) and Ca, forming ASP-EGCG-Ca complexes (AECas) used as emulsifiers.
View Article and Find Full Text PDFPrior thermal acclimation gives White Sturgeon a fin up dealing with low oxygen.
Conserv Physiol
January 2025
Department of Zoology, The University of British Columbia, Vancouver, British Columbia, Canada.
Assessing how at-risk species respond to co-occurring stressors is critical for predicting climate change vulnerability. In this study, we characterized how young-of-the-year White Sturgeon () cope with warming and low oxygen (hypoxia) and investigated whether prior exposure to one stressor may improve the tolerance to a subsequent stressor through "cross-tolerance". Fish were acclimated to five temperatures within their natural range (14-22°C) for one month prior to assessment of thermal tolerance (critical thermal maxima, CTmax) and hypoxia tolerance (incipient lethal oxygen saturation, ILOS; tested at 20°C).
View Article and Find Full Text PDFOpposing roles for Bmp signalling during the development of electrosensory lateral line organs.
Elife
January 2025
Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom.
The lateral line system enables fishes and aquatic-stage amphibians to detect local water movement via mechanosensory hair cells in neuromasts, and many species to detect weak electric fields via electroreceptors (modified hair cells) in ampullary organs. Both neuromasts and ampullary organs develop from lateral line placodes, but the molecular mechanisms underpinning ampullary organ formation are understudied relative to neuromasts. This is because the ancestral lineages of zebrafish (teleosts) and (frogs) independently lost electroreception.
View Article and Find Full Text PDFEffect of L-alanine exposure during early life stage on olfactory development, growth and survival in age-0 lake sturgeon .
Conserv Physiol
December 2024
Department of Biological Sciences, University of Manitoba, 50 Sifton Rd, R3T 2M5 Winnipeg, Manitoba, Canada.
Environmental factors play an important role in phenotypic development of fishes, which has implications for hatchery-reared fishes that are released into the wild where natural cues are present. There is interest in examining how early exposure to dietary odourants can affect development of olfaction. The aim of our study was to use behavioural, molecular and electro-physiological techniques to evaluate how introduction of the amino acid L-alanine to the rearing environment might influence the development of olfactory perception of dietary cues, growth and survival in lake sturgeon (), a species of conservation concern.
View Article and Find Full Text PDFA Repetitive Genomic Region Aligning with the IGLV Gene Cluster Suggests a Role as a Transcription Termination Element Across Several Sturgeon Species.
Int J Mol Sci
November 2024
Department of Pathobiological Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA 70803, USA.
This study focuses on the common presence of repetitive sequences within the sturgeon genome that may contribute to enhanced immune responses against infectious diseases. A repetitive 675 bp VAC-2M sequence in Russian sturgeon DNA that aligns with the Siberian sturgeon IGLV gene cluster was identified. A specific 218 bp long portion of the sequence was found to be identical between , and species, and NCBI blast analysis confirmed the presence of this DNA segment in the genome.
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