从波罗的海的一个微生物中分离出来的,产生圆柱体的蓝藻细菌
Tânia Keiko Shishido1, Endrews Delbaje2, Matti Wahlsten3
1Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Viikinkaari 9, FI-00014, Helsinki, Finland; University of Helsinki, Helsinki Institute of Life Science, Institute of Biotechnology, Viikinkaari 5, 00014, Helsinki, Finland.
概括
在波罗的海微生物地毯中发现有毒的蓝菌,Kamptonema,产生圆柱体类素. 这些地毯可能是环境毒素的来源,对水质和动物健康构成风险.
科学领域:
- 环境微生物学环境微生物学
- 蓝藻细菌毒理学 蓝藻细菌毒理学
- 海洋生态海洋生态学
背景情况:
- 蓝藻细菌的有毒盆地地毯与全球水质问题和动物中毒有关.
- 波罗的海的一种蓝藻菌株Kamptonema,已知可以产生圆筒种素,其息地不清楚.
- 之前从波罗的海水中没有报道过圆柱种素.
研究的目的:
- 从波罗的海中分离和描述坎普托尼马菌株.
- 调查这些菌株中存在的圆柱和相关毒素.
- 探索波罗的海中这些有毒的蓝藻细菌的生态生活方式.
主要方法:
- 隔离 Kamptonema sp. 的一种物种. UHCC 0994来自赫尔辛基的一个谷底微生物.
- Kamptonema spp. 的基因组测序草案. 在PCC 7926和UHCC 0994.4.
- 高分辨率液体染色学质谱测量检测毒素.
- 对气囊基因和浮力调节的分析.
主要成果:
- 坎普托内马公司 Kamptonema Sp. UHCC 0994从波罗的海的一块盆地地中分离出来.
- 四种波罗的海坎普托尼马菌株 (PCC 7926,UHCC 0994,PCC 6506,PCC 6407) 拥有完整的圆柱类素基因集群.
- 这四种菌株都产生了圆柱和7-epi-cylindrospermopsin;两种菌株调节了浮力,这表明了类浮游生物的生活方式.
结论:
- 波罗的海的地微生物可以容纳有毒的坎普托尼马物种.
- 这些蓝藻细菌能够产生有害的圆柱.
- 微生物地毯中的有毒蓝藻可能是波罗的海生态系统中环境毒素的重要来源.
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