Article
Biochemistry & Molecular Biology
Waldo Acevedo, Rodrigo Moran-Figueroa, Luis Vargas-Chacoff, Francisco J. Morera, Juan Pablo Pontigo
Summary: This study characterizes the NLRP3 inflammasome in Atlantic salmon through structural modeling, functional transcript expression determination, and transcriptome analysis. The results suggest a similar composition and function of the NLRP3 inflammasome in Atlantic salmon and mammals. The adaptation to seawater in Atlantic salmon leads to down-regulation of inflammasome-related genes and temporary detrimental effects on the immune system.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biotechnology & Applied Microbiology
D. Conte, J. K. Palmeiro, A. A. Bavaroski, L. S. Rodrigues, D. Cardozo, A. P. Tomaz, J. O. Camargo, L. M. Dalla-Costa
Summary: The study identified untreated healthcare effluents, presence of antimicrobials in the environment, and multidrug-resistant Aeromonas sp. as potential factors for the spread of resistance, posing a threat to public health.
JOURNAL OF APPLIED MICROBIOLOGY
(2021)
Article
Fisheries
Morten Omholt Alver, Martin Fore, Jo Arve Alfredsen
Summary: The research team developed a mathematical model based on the advection-diffusion equation to predict dissolved oxygen levels in fish sea cages. The model was tested in a large production unit and performed well, but may require more detailed information on fish behavior and current conditions within the cages to improve accuracy.
Article
Plant Sciences
Cansu Oksel, Farhat A. Avin, Mustafa Mirik, Fulya Baysal-Gurel
Summary: This study analyzed and identified Pseudomonas syringae pv. syringae from infected sweet cherry trees in different locations of the Marmara region in Turkey. The study found high genetic diversity among the isolates, and that location was not indicative of genetic diversity. The results contribute to a better understanding of the evolution and genetic diversity of P. syringae pv. syringae in sweet cherry isolates.
Article
Chemistry, Applied
Jie Chen, Qing Kong, Ziting Sun, Jiayuan Liu
Summary: The study using liquid chromatography-mass spectrometry found that lipid composition in salmon muscle changes over time when stored at 4 degrees Celsius, with four lipids showing significant increase from the tenth day. Traditional freshness index also indicated spoilage of salmon slices by the tenth day, suggesting they may serve as indicators of raw salmon freshness.
Article
Chemistry, Applied
Meng Dong, Yu-Ying Zhang, Xu-Hui Huang, Ran Xin, Xiu-Ping Dong, Kunihiko Konno, Bei-Wei Zhu, Ian Fisk, Lei Qin
Summary: The study evaluated the dynamic sensations of fresh and roasted salmon during chewing, as well as the tastants released in saliva. Specific amino acids and nucleotides released in saliva may induce different taste perceptions.
Article
Ecology
Vesta Skrodenyte-Arbaciauskiene, Tomas Virbickas, Juliana Luksa, Elena Serviene, Laima Blazyte-Cereskiene, Vytautas Kesminas
Summary: The gut microbiota of wild Baltic salmon parr was found to differ from those of wild North- and East-Atlantic salmon parr, possibly due to biogeographical differences or host-selective pressures as a result of the Baltic salmon population splitting from the Atlantic salmon population in the Ancylian period.
Article
Biochemistry & Molecular Biology
Jana Stundlova, Frantisek Stahlavsky, Vera Opatova, Jan Stundl, Frantisek Kovarik, Petr Dolejs, Jirf Smid
Summary: The family Buthidae is an early diverging and highly diverse lineage of scorpions, but its internal phylogenetic relationships are not well understood. Through the use of multilocus sequence data and extensive taxon sampling, this study reconstructed the phylogenetic relationships within Buthidae and assessed the validity of morphology-based groupings. The results suggest that some morpho-groups within Buthidae are not monophyletic and that taxonomic revisions may be needed for certain genera.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2022)
Article
Fisheries
Heidi Moe Fore, Trine Thorvaldsen, Tonje C. Osmundsen, Frank Asche, Ragnar Tveteras, Jan Tore Fagertun, Hans Bjelland
Summary: The Norwegian government has introduced a new type of aquaculture license to address environmental issues in salmon farming. New technological solutions have been proposed, including expansion to open ocean areas and reduced emissions. The analysis of license applications reveals that future marine aquaculture will involve larger and stronger units, with a focus on design diversity.
AQUACULTURE REPORTS
(2022)
Article
Agriculture, Dairy & Animal Science
Chuncai Liang, Huan Cui, Ligong Chen, Hailong Zhang, Cheng Zhang, Juxiang Liu
Summary: This study investigated the antimicrobial resistance and prevalence of Escherichia coli (E. coli) in broiler chickens in Hebei Province. The results showed that ampicillin resistance was the highest, while meropenem resistance was the lowest. There was a serious problem of multidrug resistance in both types of broiler farms.
Article
Immunology
Juan Pablo Pontigo, Carla Espinoza, Mauricio Hernandez, Guillermo Nourdin, Cristian Oliver, Ruben Avendano-Herrera, Jaime Figueroa, Cecilia Rauch, Jose M. Troncoso, Luis Vargas-Chacoff, Alejandro J. Yanez
Summary: Developing an effective and economical vaccine against Piscirickettsia salmonis is crucial for sustainable salmon farming. One vaccine prototype effectively protected Atlantic salmon by inducing specific antibodies and pro-inflammatory cytokines, while the other two activated innate immune responses but did not provide protection. Understanding the protein formulation of vaccines based on P. salmonis is essential for improving immune responses and disease resistance in Atlantic salmon.
FRONTIERS IN IMMUNOLOGY
(2021)
Article
Fisheries
Xiaohao Li, Yanyun Liu, Jianxin Cheng, Yuqing Xia, Kunpeng Fan, Ying Liu, Peng-fei Liu
Summary: This study cloned a fibrinogen alpha chain-like gene from Atlantic salmon, analyzed its expression pattern after infection by the bacterium Aeromonas salmonicida, and found that it may play important roles in the innate immune responses to bacterial invasion in Atlantic salmon. The study highlighted the significance of Ss-FGA in the immune system of Atlantic salmon.
AQUACULTURE REPORTS
(2022)
Article
Neurosciences
Francesca Vacca, Ana S. Gomes, Koji Murashita, Raffella Cinquetti, Cristina Roseti, Amilcare Barca, Ivar Ronnestad, Tiziano Verri, Elena Bossi
Summary: Two slc15a2-type genes were identified in the Atlantic salmon genome, encoding PepT2-type peptide transporters. While slc15a2a transcripts are widely distributed in fish tissues, abundant in the brain and gills, slc15a2b transcripts are mainly expressed in the kidney and distal gastrointestinal tract. Both PepT2a and PepT2b function as high-affinity transporters.
JOURNAL OF PHYSIOLOGY-LONDON
(2022)
Article
Multidisciplinary Sciences
Tormod Haraldstad, Thrond O. Haugen, Esben M. Olsen, Torbjorn Forseth, Erik Hoglund
Summary: Renewable energy projects like hydropower plants contribute to meeting energy demands and mitigating climate change, but they can alter environments and impact fish migration conditions, affecting population adaptations. Monitoring Atlantic salmon smolts at a hydropower plant showed that behavioral traits influenced their choice between fish passage and turbine intake during migration, with potential implications for genetic diversity and future challenges.
SCIENTIFIC REPORTS
(2021)
Article
Immunology
Danixa Martinez, Ricardo Oyarzun-Salazar, Ana Maria Quilapi, Jose Coronado, Ricardo Enriquez, Carolina Vargas-Lagos, Cristian Oliver, Natacha Santibanez, Marcos Godoy, Jose Luis Munoz, Luis Vargas-Chacoff, Alex Romero
Summary: This study evaluated the activation of nutritional immunity in Atlantic salmon stimulated with live and inactivated Piscirickettsia salmonis. The results showed that both live and inactivated P. salmonis could activate nutritional immunity, and there was no distinction between the two. Genetic material of P. salmonis was detected in the liver tissue of the fish. The hematocrit percentage decreased in fish stimulated with live P. salmonis, while it remained unchanged in fish stimulated with inactivated P. salmonis. Plasma iron content decreased in both experimental groups, but the decrease was statistically significant only at 3 dpi. Immune-nutritional markers were modulated in both experimental conditions, while other markers were down-regulated. Intracellular iron content increased in the liver at 7 and 14 dpi, while zinc content decreased at 14 dpi in both experimental groups. However, manganese content was not altered by the stimulation. These findings suggest that nutritional immunity responds similarly to live and inactivated P. salmonis, and may be self-activated by the detection of PAMPs rather than a sequestration and/or competition of micronutrients by the living microorganism.
FRONTIERS IN IMMUNOLOGY
(2023)
