Chitosan-tripolyphosphate nanoparticles as a novel vehicle for DNA vaccine delivery: combatting Aeromonas hydrophila in zebrafish

Aquaculture International, Journal Year: 2025, Volume and Issue: 33(3)

Published: March 21, 2025

Language: Английский

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Multisystemic inflammatory disease in Pheasantshell (Unionidae,Actinonaias pectorosa) associated withYokenella regensburgeiinfection at sites experiencing seasonal mass mortality events

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: March 16, 2024

Abstract Freshwater mussels are integral components of riverine ecosystems, influencing water quality, nutrient cycling, and habitat characteristics. Enigmatic freshwater mussel declines, often characterized by sudden mass mortality events, pose significant challenges to conservation efforts. The Clinch River, a biodiversity hotspot, has experienced several enigmatic events since 2016. Studies have reported bacteria associated with moribund Pheasantshell ( Actinonaias pectorosa ) during in the specifically Yokenella regensburgei . Despite reports bacterial infection, little is known about their role as pathogens. Through multiyear case-control study, combining in-situ experiments, field surveys, histology, isolation, high-throughput sequencing, we assessed Actinonais at two sites River. Between May 2021 December 2023, collected 29 wild free-living A. 68 hatchery-reared maintained silos same investigated differences pathology microbiology between groups. No silo presented clinical signs disease, or gross microscopic lesions pathological conditions leading mortality. Our findings reveal association severe multisystemic multifocal infiltrative hemocytosis necrosis, consistent sepsis. Lesions yokenellosis were sufficient severity physiological significance explain infected hosts. Although our study does not cause these infections, it confirms that ultimately dying from an infectious disease Y. can be pathogenic mussels. results underscore importance considering diseases populations emphasize need for further research elucidate epidemiology pathogenicity Overall, highlights integrated approaches pathology, microbiology,

Language: Английский

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Multisystemic inflammatory disease in Pheasantshell (Unionidae, Actinonaias pectorosa) associated with Yokenella regensburgei infection at sites experiencing seasonal mass mortality events

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(8), P. e0301250 - e0301250

Published: Aug. 27, 2024

Freshwater mussels are integral components of riverine ecosystems, influencing water quality, nutrient cycling, and habitat characteristics. Enigmatic freshwater mussel declines, often characterized by sudden mass mortality events, pose significant challenges to conservation efforts. The Clinch River, a biodiversity hotspot in Virginia Tennessee, USA, has experienced several enigmatic events since 2016. Studies have reported bacteria associated with moribund Pheasantshell ( Actinonaias pectorosa ) during the specifically Yokenella regensburgei . Despite reports bacterial infection, little is known about their role as pathogens. Through multiyear case-control study, combining in-situ experiments, field surveys, histology, isolation, high-throughput sequencing, we assessed Actinonais at three sites River. Between May 2021 December 2023, collected 21 wild free-living A 68 hatchery-reared maintained silos same investigated differences pathology microbiologye between groups. No silo presented clinical signs disease, or gross microscopic lesions pathological conditions leading mortality. Our findings reveal association severe multisystemic multifocal infiltrative hemocytosis necrosis, consistent sepsis. Lesions yokenellosis were sufficient severity physiological significance explain infected hosts. Although our study does not cause these infections, it confirms that ultimately dying an infectious disease Y can be pathogenic mussels. results underscore importance considering diseases populations emphasize need for further research elucidate epidemiology pathogenicity Overall, highlights integrated approaches pathology, microbiology,

Language: Английский

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The Community Dynamic Alterations Mechanisms of Traveling Plastics in the Pearl River Estuary with the Salinity Influence

Water Research, Journal Year: 2024, Volume and Issue: 274, P. 123057 - 123057

Published: Dec. 26, 2024

Language: Английский

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