| 一株水产芽孢杆菌的筛选鉴定及其净水效果研究 |
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| 引用本文： | 李永芹,许乐乐,陈克卫.一株水产芽孢杆菌的筛选鉴定及其净水效果研究[J].水生态学杂志,2013,34(1):96-100. |
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| 作者姓名： | 李永芹 许乐乐 陈克卫 |
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| 作者单位： | 中国农业大学（烟台） |
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| 基金项目： | 中国农业大学(烟台)校内科研项目(YT201105) |
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| 摘 要： | 从刺参(Stichopus japonicus)养殖池塘底泥中分离芽孢杆菌,筛选后获得1株优势目的菌株YT-2;根据形态学特征和生理生化特性结果,将其鉴定为枯草芽孢杆菌(Bacillus subtilis)。安全性试验证实,枯草芽孢杆菌YT-2对孔雀鱼(Poecilia reticulata)和南美白对虾(Penaeus vannamei)无毒性;水质净化试验结果显示,10d后菌株YT-2对养殖水体中氨氮和亚硝酸盐的降解率分别为81.9%和64.3%,表明该菌对净化养殖池塘水质有明显的作用,具有作为益生菌开发应用的潜力。
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| 关 键 词： | 芽孢杆菌 筛选 鉴定 净水效果 |
| 收稿时间： | 2012/9/28 0:00:00 |
| 修稿时间： | 2012/11/15 0:00:00 |
Screening, Identification and Water Purification Effect of Strain Bacillus for agriculture |
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| lI Yong-qin,XU Le-le and CHEN Ke-wei.Screening, Identification and Water Purification Effect of Strain Bacillus for agriculture[J].Journal of Hydroecology,2013,34(1):96-100. |
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| Authors: | lI Yong-qin XU Le-le and CHEN Ke-wei |
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| Institution: | Yantai Institute of China Agricultural University |
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| Abstract: | Bacillus strains were isolated and purified from the marine pond of sea cucumber. A dominant strain, Bacillus YT-2 was obtained through screening tests. Based on morphological features and results of physiological and biochemical characteristics, YT-2 was identified as Bacillus subtilis. The results of safety tests showed that the toxicity of the strain YT-2 was actually nontoxic on guppies and shrimp. And the water purification experiment indicated that the removal rates of ammonia nitrogen and nitrite by Bacillus subtilis YT-2 were 81.9% and 64.3%, respectively. Therefore, Bacillus subtilis YT-2 can effectively improve the quality of water in aquacultural pond, and has potential application value as probiotics. |
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| Keywords: | Bacillus Screening identification Water purification |
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