Harmful Algal Bloom Laboratory, The Marine Science Institute, University of the Philippines Diliman, Quezon City, Philippines; Verde Island Passage Center for Oceanographic Research and Aquatic Life Sciences, Batangas State University, Batangas City, Batangas, Philippines.
Harmful Algal Bloom Laboratory, The Marine Science Institute, University of the Philippines Diliman, Quezon City, Philippines.
Mar Pollut Bull. 2018 Dec;137:430-443. doi: 10.1016/j.marpolbul.2018.10.034. Epub 2018 Oct 26.
Morphological and phylogenetic analysis showed that the Gambierdiscus isolate from Bolinao, Philippines belongs to the species of G. carpenteri. It was morphologically more similar to the Merimbula strain than the subtropical Florida Keys strain. Growth and toxin production were also investigated at varying levels of temperature, salinity, and irradiance. Gambierdiscus are known to grow favorably in a low light environment. However, this study showed high growth rates of G. carpenteri even at high irradiance levels. Generally, cells produced more toxins at lower treatment levels. Highest cellular toxin content recorded was 7.48 ± 0.49 pg Pbtx eq/cell at culture conditions of 25 °C, 100 μmol photons m s, and salinity of 26. Growth rate and toxin production data suggest that cells produced more toxins during the slowest growth at certain range of treatments. This information gives insight into how changes in environmental conditions may affect toxin production and growth of G. carpenteri.
形态学和系统发育分析表明，来自菲律宾博利瑙的冈比亚藻分离株属于 G. carpenteri 种。它在形态上与 Merimbula 株比与亚热带佛罗里达群岛株更相似。还研究了在不同温度、盐度和光照水平下的生长和毒素产生情况。已知冈比亚藻在低光照环境中生长良好。然而，这项研究表明，即使在高光辐照度水平下，G. carpenteri 的生长速度也很高。通常，细胞在较低的处理水平下产生更多的毒素。在 25°C、100µmol 光子 m s 和盐度为 26 的培养条件下，细胞产生的毒素含量最高，为 7.48±0.49pgPbtx eq/cell。生长率和毒素产生数据表明，在一定处理范围内，细胞在最慢的生长阶段产生更多的毒素。这些信息使我们深入了解环境条件的变化如何影响 G. carpenteri 的毒素产生和生长。
