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Researchers from the University of New South Wales conducted a study on the pathogenic mechanisms of Aeromonas veronii and Escherichia coli in human macrophages. The study found that A. veronii induced higher levels of inflammation and apoptosis in macrophages compared to E. coli. A. veronii also downregulated the expression of histone genes, suggesting a unique impact on host cell gene expression. This research provides new insights into the pathogenic mechanisms of A. veronii as a human enteric pathogen. [Extracted from the article]

A recent study conducted at University Hospital Marques Valdecilla in Santander, Spain, focused on analyzing the virulence genes of Aeromonas species isolated from feces. The research aimed to compare the distribution of these genes between different species of Aeromonas and determine their presence in enterotoxigenic strains versus co-pathogen strains. The study found no significant differences in the distribution of virulence genes based on the co-existence of co-pathogens. A. hydrophila was identified as the potentially most virulent species among the strains studied. [Extracted from the article]

A study conducted by researchers at the University of Niigata in Japan explores the carbon storage regulator (Csr) system in Aeromonas salmonicida, a Gram-negative bacterium. The study found that the Csr system in A. salmonicida affects various phenotypes, including glycogen biosynthesis, biofilm formation, motility, and stability of small RNA molecules. The research highlights the conservation and functionality of the Csr system in A. salmonicida and raises questions about its regulatory targets and mechanisms. The study was supported by the Ministry of Education, Culture, Sports, Science and Technology, Japan. [Extracted from the article]

Researchers from the Chinese Academy of Fishery Sciences have conducted a study on Aeromonas hydrophila, a bacterium that causes disease in frogs. The study found that two dominant bacteria, Aeromonas hydrophila Rd001 and Acinetobacter johnsonii Rd002, were isolated from naturally infected frogs. Experimental infection confirmed that Rd001 was the primary pathogen responsible for the disease. The study also identified the virulence genotype and antimicrobial susceptibility of Rd001, as well as its genetic traits. This research provides valuable information for preventing and controlling A. hydrophila infections in frogs. [Extracted from the article]

A study conducted by the Chinese Academy of Fishery Sciences in Wuhan, China, focused on the characteristics of a dominant strain of Aeromonas bacteria found in sick red swamp crayfish. The researchers identified the strain as Aeromonas salmonicida subsp. masoucida, which causes red swamp crayfish head rot. The study found that the infected crayfish exhibited a strong immune response, as evidenced by the upregulation of immune-related genes. The research provides valuable insights into the emerging infectious diseases and immune response in red swamp crayfish. [Extracted from the article]

A study conducted by researchers from the Vellore Institute of Technology in Tamil Nadu, India, focused on the development of a bioactive feed for treating bacterial infections in freshwater prawns. The study found that the ethyl acetate extract of Bacillus licheniformis, a marine-based actinomycete, exhibited antibacterial and antioxidant properties. The researchers conducted an experimental trial with three groups of prawns, and the group that received the encapsulated B. licheniformis feed showed increased survival rates and enhanced antioxidant activities compared to the other groups. The study concluded that B. licheniformis demonstrated improved immune response, disease resistance, and gene expression in prawns challenged with Aeromonas hydrophila. [Extracted from the article]

A study conducted by the Chinese Academy of Fishery Sciences has analyzed the miRNA and mRNA transcriptome of the giant freshwater prawn Macrobrachium rosenbergii infected with Aeromonas hydrophila. The researchers identified differentially expressed miRNAs and mRNAs, as well as differentially predicted target genes. The study found that infection with A. hydrophila triggers complex responses in both miRNA and mRNA, significantly impacting immune and autophagy processes in M. rosenbergii. The findings suggest the involvement of various signaling pathways and functional categories related to immunity, apoptosis, and autophagy. [Extracted from the article]

A new report from Guizhou Education University in China discusses the isolation, identification, and characterization of a pathogenic strain of Aeromonas allosaccharophila in farmed leeches in Jiangsu, China. The study found that this strain caused severe disease and death in leeches, leading to mass mortality in farmed populations. The researchers identified the strain through physiological and biochemical identification and phylogenetic analysis of the whole genome sequence. This study provides valuable information for the prevention and control of bacterial diseases in the breeding of leeches. [Extracted from the article]

Keywords: Aeromonadaceae; Aeromonas; Aeromonas hydrophila; Gammaproteobacteria; Genetics; Gram-Negative Bacteria; Gram-Negative Facultatively Anaerobic Rods; Proteobacteria EN Aeromonadaceae Aeromonas Aeromonas hydrophila Gammaproteobacteria Genetics Gram-Negative Bacteria Gram-Negative Facultatively Anaerobic Rods Proteobacteria 1268 1268 1 10/03/23 20231006 NES 231006 2023 OCT 6 (NewsRx) -- By a News Reporter-Staff News Editor at Genomics & Genetics Weekly -- A new study on Aeromonas hydrophila is now available. Aeromonadaceae, Aeromonas, Aeromonas hydrophila, Gammaproteobacteria, Genetics, Gram-Negative Bacteria, Gram-Negative Facultatively Anaerobic Rods, Proteobacteria. [Extracted from the article]

For more information on this research see: Isolation and genotypic characterization of extended-spectrum beta-lactamase-producing Escherichia coli O157:H7 and Aeromonas hydrophila from selected freshwater sources in Southwest Nigeria. Keywords: Aeromonadaceae; Aeromonas; Aeromonas hydrophila; Amidohydrolases; Beta-Lactamases; Enterobacteriaceae; Enzymes and Coenzymes; Escherichia coli; Escherichia coli O157:H7; Gammaproteobacteria; Gram-Negative Bacteria; Gram-Negative Facultatively Anaerobic Rods; Health and Medicine; Lactamase; Proteobacteria; Public Health EN Aeromonadaceae Aeromonas Aeromonas hydrophila Amidohydrolases Beta-Lactamases Enterobacteriaceae Enzymes and Coenzymes Escherichia coli Escherichia coli O157:H7 Gammaproteobacteria Gram-Negative Bacteria Gram-Negative Facultatively Anaerobic Rods Health and Medicine Lactamase Proteobacteria Public Health 828 828 1 07/24/23 20230728 NES 230728 2023 JUL 28 (NewsRx) -- By a News Reporter-Staff News Editor at Genomics & Genetics Weekly -- New research on Escherichia coli O157:H7 is the subject of a new report. Aeromonadaceae, Aeromonas, Aeromonas hydrophila, Beta-Lactamases, Amidohydrolases, Enterobacteriaceae, Enzymes and Coenzymes, Escherichia coli, Escherichia coli O157:H7, Gammaproteobacteria, Gram-Negative Bacteria, Gram-Negative Facultatively Anaerobic Rods, Health and Medicine, Lactamase, Proteobacteria, Public Health. [Extracted from the article]

Based on phenotypic characteristics and sequence analysis of the 16S rRNA and gyrB genes, PCG1 was identified as Aeromonas veronii and PCG2 was identified as Vibrio cholerae. Keywords: Aeromonadaceae; Aeromonas; Cholera; Digestive System Diseases and Conditions; Gammaproteobacteria; Gram-Negative Bacteria; Gram-Negative Facultatively Anaerobic Rods; Proteobacteria; Vibrio cholerae; Vibrionaceae EN Aeromonadaceae Aeromonas Cholera Digestive System Diseases and Conditions Gammaproteobacteria Gram-Negative Bacteria Gram-Negative Facultatively Anaerobic Rods Proteobacteria Vibrio cholerae Vibrionaceae 733 733 1 06/19/23 20230623 NES 230623 2023 JUN 23 (NewsRx) -- By a News Reporter-Staff News Editor at Genomics & Genetics Weekly -- New study results on aeromonas have been published. [Extracted from the article]

Keywords: Aeromonadaceae; Aeromonas; Aeromonas salmonicida; Gammaproteobacteria; Gram-Negative Bacteria; Gram-Negative Facultatively Anaerobic Rods; Proteobacteria EN Aeromonadaceae Aeromonas Aeromonas salmonicida Gammaproteobacteria Gram-Negative Bacteria Gram-Negative Facultatively Anaerobic Rods Proteobacteria 1437 1437 1 04/10/23 20230414 NES 230414 2023 APR 14 (NewsRx) -- By a News Reporter-Staff News Editor at Genomics & Genetics Weekly -- Investigators publish new report on Aeromonas salmonicida. Taken together, these indicated that the znuABC was necessary for A. salmonicida SRW-OG1 pathogenicity and environmental adaptability, and was cross regulated by iron starvation, but it was not irreplaceable for A. salmonicida SRW-OG1 Zn2+ uptake in the host." Therefore, the purpose of this study was to explore the effect of znuABC silencing on the virulence regulation of A. salmonicida SRW-OG1. [Extracted from the article]