Bacillus amyloliquefaciens G1: A Potential Antagonistic Bacterium against Eel-Pathogenic Aeromonas hydrophila
Recent studies have revealed that the use of probiotics is an alternative to control marine aeromonas. However, few probiotics are available against Aeromonas hydrophila infections in eels. In the present study, a potential antagonistic strain G1 against the eel-pathogenic A. Hydrophila was isolated from sediment underlying brackish water. Its extracellular products with antibacterial activities were shown to be stable under wide range of pH, temperature, and proteinase K. It was initially identified as Bacillus amyloliquefaciens using API identification kits and confirmed to be B. Amyloliquefaciens strain (GenBank accession number DQ422953) by phylogenetic analysis. In addition, it was shown to be safe formammalians, had a wide anti-A. Hydrophila spectrum, and exhibited significant e.ects on inhibiting the growth of the eel-pathogenic A. Hydrophila both in vitro and in vivo. To the best of our knowledge, this is the first report on a promising antagonistic Bacillus amyloliquefaciens strain from brackish water sediment against eel-pathogenic A. Hydrophila.
Haipeng Cao Shan He RuopengWei Marek Diong Liqun Lu
Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources of Ministry of Education, Education Department, Shanghai Normal University, Shanghai 200235, China Technology Department, Shanxi Veterinary Drug and Feed Engineering Technology Research Center, Yunch Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources of Ministry of Education,
国际会议
青岛
英文
1-7
2010-10-09（万方平台首次上网日期，不代表论文的发表时间）