Comparative studies on the fish-killing activities of Chattonella marina isolated in 1985 and Chattonella antiqua isolated in 2010, and their possible toxic factors
Comparative studies on the fish-killing activities of Chattonella marina isolated in 1985 and Chattonella antiqua isolated in 2010, and their possible toxic factors
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DOI：
10.1080/09168451.2015.1116929
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发表时间：
2016-04-02
影响因子：
1.6
通讯作者：
Oda, Tatsuya
中科院分区：
文献类型：
--
作者：
Cho, Kichul;Sakamoto, Jun;Oda, Tatsuya
与1985年分离的Chattonella marina相比，2010年分离的Chattonella antiqua对红鲷、日本竹荚鱼和蓝雀鲷表现出更强的杀鱼活性。化学发光和电子自旋共振（ESR）分析表明，C. antiqua比C.码头羟自由基清除剂苯甲酸钠显著抑制C.蓝色雀鲷上的古董。蓝雀鲷鳃组织中叶绿素含量沿着暴露时间的延长而增加，鳃相关的C.用叶绿素含量估算的antiqua比C.码头这些结果表明，细胞的ROS产生活性和对鳃表面的亲和性可能是影响查顿氏菌杀鱼活性的重要因素。
Chattonella antiqua isolated in 2010 showed extremely more potent fish-killing activities against red sea bream, Japanese horse mackerel, and blue damselfish than those of Chattonella marina isolated in 1985. Chemiluminescence and electron spin resonance (ESR) analyses suggested greater reactive oxygen species (ROS)-producing activity of C. antiqua than that of C. marina. Sodium benzoate, a hydroxyl radical scavenger, significantly suppressed the fish-killing activity of C. antiqua on blue damselfish. The chlorophyll level in the gill tissue of blue damselfish exposed to flagellate cells increased along with the exposure time, and the cell count of gill-associated C. antiqua estimated with chlorophyll level was higher than that of C. marina. These results suggest that the ROS-producing activity and affinity of Chattonella cells to the gill surface may be important factors influencing the fish-killing activity of Chattonella species.