Liu Lei, Wei Ning, Gou Yuxiao, Li Dongmei, Liang Yubo, Xu Daoyan, Liu Renyan, Sui Shifeng, Jiang Tianjiu
College of Life Science and Technology, Jinan University, Guangzhou, 510632, China; National Marine Environmental Monitoring Center, SOA, Dalian, 116023, China.
Dalian Ocean University, Dalian, 116023, China.
Toxicon. 2017 Dec 1;139:31-40. doi: 10.1016/j.toxicon.2017.09.015. Epub 2017 Sep 29.
This paper reports a toxic strain of Protoceratium reticulatum, its morphology, phylogeny, yessotoxins (YTXs) production and abundance in northern Yellow Sea of China from 2011 to 2015 was investigated. YTXs in hepatopancreas and edible parts of bottom sowing cultured Japanese scallop Patinopecten yessoensis in this sea area were determined weekly for 5 years. Other potential producers of YTXs, Gonyaulax spinifera and Lingulodinium polyedrum, were also investigated. Results revealed that Protoceratium reticulatum strain from the northern Yellow Sea belongs to a geographically widely distributed species. Motile cells of Protoceratium reticulatum contribute to YTXs in Japanese scallop, and G. spinifera may also be a potential contributor. Resting cysts of Protoceratium reticulatum, G. spinifera, and L. polyedrum in sediments were possibly important origins of YTXs in scallop cultured at sea bottom. YTXs in scallop decreased from 2011 to 2015, most toxins were concentrated in hepatopancreas, while a small portion in edible parts which was safe for consumption the whole year around.
本文报道了一种具尾原甲藻毒性菌株，对其形态、系统发育、在中国黄海北部2011年至2015年期间的腹泻性贝毒（YTXs）产生情况及丰度进行了研究。对该海域底播养殖的虾夷扇贝（Patinopecten yessoensis）肝胰腺和可食用部分中的YTXs进行了为期5年的每周一次测定。还对其他YTXs潜在产生者，具刺膝沟藻（Gonyaulax spinifera）和多边舌甲藻（Lingulodinium polyedrum）进行了研究。结果表明，来自黄海北部的具尾原甲藻菌株属于一个地理分布广泛的物种。具尾原甲藻的游动细胞是虾夷扇贝中YTXs的来源，具刺膝沟藻也可能是一个潜在来源。沉积物中具尾原甲藻、具刺膝沟藻和多边舌甲藻的休眠孢囊可能是海底养殖扇贝中YTXs的重要来源。2011年至2015年期间，扇贝中的YTXs含量下降，大部分毒素集中在肝胰腺中，而可食用部分中的毒素含量较少，全年食用均安全。
