浙江农业学报 ›› 2018, Vol. 30 ›› Issue (9): 1585-1591.DOI: 10.3969/j.issn.1004-1524.2018.09.20

• 环境科学 • 上一篇    下一篇

虾源蜡样芽孢杆菌D7的生态安全性评价

张洪玉1, 王海波1, 2, 杨移斌3, 赵明军4, 夏磊1, 2, *   

  1. 1.中国水产科学研究院 无公害渔药创制中心,北京100141;
    2.北京鑫洋水产高新技术有限公司,北京102488;
    3.中国水产科学研究院 长江水产研究所,湖北 武汉 430233;
    4.中国水产科学研究院 渔业发展战略研究中心,北京 100141
  • 收稿日期:2018-03-08 出版日期:2018-09-25 发布日期:2018-10-15
  • 作者简介:张洪玉(1981—),男,内蒙古通辽人,博士,副研究员,主要从事渔用投入品的研究。E-mail: zhanghy@cafs.ac.cn

Ecological safety assessment of Bcillus cereus D7 isolated from shrimp

ZHANG Hongyu1, WANG Haibo1, 2, YANG Yibin3, ZHAO Mingjun4, XIA Lei1, 2, *   

  1. 1. Research & Creation Center of Green Fishery Drug of Chinese Academy of Fishery Sciences, Beijing 100141, China;
    2. Beijing Seasun Aquaculture BioTech. Co. Ltd., Beijing 102488, China;
    3. Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China;
    4. Fishery Development Strategy & Research Centre,Chinese Academy of Fishery Sciences, Beijing 100141;
  • Received:2018-03-08 Online:2018-09-25 Published:2018-10-15
  • Contact: 夏磊,E-mail: xialei666@126.com
  • Supported by:
    中国水产科学研究院基本科研业务费专项(2016B002)

摘要: 为了评价蜡样芽孢杆菌菌株D7的生态安全性,分别测定了蜡样芽孢杆菌D7对氨氮、亚硝酸盐、磷酸盐浓度的影响,以及对小球藻、大型蚤、斑马鱼、凡纳滨对虾和草鱼等水生动植物的安全性。研究结果表明,蜡样芽孢杆菌菌株D7浓度≥1×107 cfu·mL-1时,水中氨氮及亚硝酸盐含量显著降低(P<0.05)。蜡样芽孢杆菌菌株D7浓度≤1×106 cfu·mL-1时,对氨氮及亚硝酸盐含量无显著影响。蜡样芽孢杆菌菌株D7浓度在104~108 cfu·mL-1时,水中磷酸盐含量无显著变化。小球藻含量与菌体浓度呈正相关。处理96 h,对大型蚤、斑马鱼和凡纳滨对虾死亡率均无显著影响。以不同细菌剂量(108~1012 cfu·mL-1)灌胃草鱼,处理96 h后,未出现草鱼死亡现象。表明虾源蜡样芽孢杆菌D7生态安全性较好,对水体及养殖动物无明显危害。

关键词: 虾源, 蜡样芽孢杆菌, 生态安全

Abstract: In order to evaluate the ecological safety of Bacillus cereus D7, the effects of Bacillus cereus D7 on concentration of ammonia nitrogen, nitrite and phosphate were tested. The research of safety on Chlorella vulgaris, Daphnia magna, Danio retio, Penaeus vanmamei and Ctenopharyngodon idella were also carried out. The results showed that Bacillus cereus D7 (≥1×107 cfu·mL-1) reduced ammonia nitrogen and nitrite concentration significantly (P<0.05). When the concentration of Bacillus cereus D7 was below 1×106 cfu·mL-1, there were no significant influence on ammonia nitrogen and nitrite concentration. When the concentration of Bacillus cereus D7 was between 104~108 cfu·mL-1, there was no significant influence on phosphate. Concentration of Chlorella vulgaris showed positive correlation with Bacillus cereus D7. The death rate of Daphnia magna, Danio retio,Penaeus Vanmamei had no significant difference after 96 h treatment. When the concentration of Bacillus cereus D7 was between 108~1012 cfu·mL-1, there was no obvious influence on death rate of Ctenopharyngodon idella after 96 h. The results showed that Bacillus cereus D7 could have no adverse effects on water and aquatic animals, which could be used as a kind of ecological safety probiotics.

Key words: shrimp source, Bacillus cereus, ecological security

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