1. 1 株水产用抑菌菌株的筛选鉴定及性质研究.
- Author
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赵倩, 高绪娜, 徐海燕, 张坤琳, 谷巍, 王慧, 盛永杰, and 单宝龙
- Subjects
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VIBRIO parahaemolyticus , *AEROMONAS hydrophila , *BACILLUS subtilis , *CRUCIAN carp , *VIBRIO alginolyticus , *PATHOGENIC bacteria - Abstract
A strain YJ4 with antibacterial activity was isolated and screened from the intestine of crucian carp, its fermentation broth has strong bacteriostatic effect on Aeromonas hydrophila, Vibrio harveii, Vibrio alginolyticus, Vibrio parahaemolyticus and Aeromonas verge. Morphological characteristics, physiological and biochemical characteristics, 16S rDNA sequence and phylogeny and phylogenetic evolution were analyzed. The results showed that strain YJ4 had 99% homology with Bacillus subtilis, which was identified as Bacillus subtilis. The property study found that Bacillus subtilis YJ4 bacteria liquid was resistant to acid, salt and high temperature, had no toxic effect on fish. The experiment indicates that Bacillus subtilis YJ4 isolated has inhibitory effect on common aquatic pathogens, which has strong tolerance. It is suitable for adding to aquatic feed to prepare pellets and can be used as aquatic microecological preparations. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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