百菌 velezensis LG37 保护 Macrobrachium rosenbergii 免受氨应激的影响
Guangxin Liu1, Hejun Jian2, Anfeng Liu3
1Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China.
Microbial pathogenesis
|October 11, 2025
概括
补充Bacillus velezensis LG37改善了巨型淡水 (Macrobrachium rosenbergii) 暴露在氨中的生存率和免疫反应. 这种益生菌增强了抗氧化能力和耐压能力,显示了水产养殖的前景.
科学领域:
- 水产养殖是水产养殖的一种方式.
- 动物免疫学 动物免疫学
- 益生菌 益生菌 益生菌
背景情况:
- 氨对水生生物构成重大威胁,影响水产养殖中的生存和健康.
- 巨型淡水 (Macrobrachium rosenbergii) 在水产养殖中容易受到氨毒性的影响.
- 百菌 velezensis LG37是一种潜在的益生菌剂,可以改善水生动物的健康.
研究的目的:
- 为了评估Bacillus velezensis LG37在Macrobrachium rosenbergii中对氨压力的保护作用.
- 评估LG37补充对生存,抗氧化能力和免疫反应的影响.
主要方法:
- 青少年Macrobrachium rosenbergii被分为对照组和LG37补充组.
- 通过计算致命度来确定氨的耐受性.
- 测量了生存率,甲酸 (MDA) 水平,抗氧化酶活性 (SOD,CAT),免疫酶活性 (lyszyme,phenoloxidase),热冲击蛋白70 (Hsp70) 和Caspase-3表达.
主要成果:
- 补充LG37显著增加了氨的中位致命剂量28%.
- 在LG37组中,抗氧化酶活性 (SOD,CAT) 和免疫酶活性 (lyszyme,phenoloxidase) 显著更高.
- 在LG37组中,Hsp70表达升级,Caspase-3表达显著增加,这表明细胞损伤和细胞亡减少.
结论:
- 饮食类Bacillus velezensis LG37增强了Macrobrachium rosenbergii对氨压力的耐受性.
- 补充LG37可以增强抗氧化防御,并加强的免疫反应.
- 细菌 velezensis LG37 显示了作为一种保护性益生菌的潜力,用于改善水产养殖中 Macrobrachium rosenbergii 的健康和生存.
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