Successful cultivation of the toxic dinoflagellate Dinophysis caudata (Dinophyceae)

スポンサーリンク

概要

• 論文の詳細を見る

• Recently, Park et al. (2006) succeeded in cultivating the toxic dinoflagellate Dinophysis acuminata and maintaining them by feeding the ciliate Myrionecta rubra grown with a cryptophyte Teleaulax sp. After this report, the present study is the second report of propagation of a Dinophysis species (Dinophysis caudata) under laboratory conditions and describes the maintenance of several clonal strains kept at high abundance (>5,000 cells mL−1) for a relatively long period (>4 months) when fed on M. rubra with the addition of Teleaulax amphioxeia. We confirmed that D. caudata swam actively around its ciliate prey and inserted its peduncle (feeding tube) into the ciliate. Thereafter, the prey became immobile and rounded. Dinophysis caudata actively ingested the cytoplasm of the prey through the peduncle. Dinophysis caudata grew at a growth rate of 1.03 divisions day−1 when supplied with M. rubra as prey, reaching a maximum concentration of ca. 5,000 cell well−1 (810 μL) during a 9 day growth experiment. In contrast, a culture of D. caudata was not able to be established in the absence of the ciliate or when provided with T. amphioxeia only, suggesting that D. caudata can not directly utilize T. amphioxeia as prey.

• 日本プランクトン学会、日本ベントス学会の論文
• 2008-05-01

著者

• Nagai Satoshi

  Harmful Algal Bloom Div. National Res. Inst. Of Fisheries And Environment Of Inland Sea Fisheries Re

• Kamiyama Takashi

  Tohoku National Fisheries Research Institute Fisheries Research Agency

• Kamiyama Takashi

  Tohoku National Fisheries Research Institute

• Nishitani Goh

  Harmful Algal Bloom Division National Research Institute Of Fisheries And Environment Of Inland Sea

• SAKIYAMA SANAE

  Harmful Algal Bloom Division, National Research Institute of Fisheries and Environment of Inland Sea

• Sakiyama Sanae

  Harmful Algal Bloom Division National Research Institute Of Fisheries And Environment Of Inland Sea

関連論文

• Isolation and characterization of a novel virus infecting Teleaulax amphioxeia (Cryptophyceae)
• Comparison of environmental conditions in two representative oyster farming areas : Hiroshima Bay, western Japan and Oginohama Bay (a branch of Ishinomaki Bay), northern Japan
• Water temperature and salinity during the occurrence of Dinophysis fortii and D. acuminata in Kesennuma Bay, northern Japan
• Characteristics of the distribution of bacteria, heterotrophic nanoflagellates and ciliates in Hiroshima Bay in summer
• Development of a quantification assay for the cysts of the toxic dinoflagellate Alexandrium tamarense using real-time polymerase chain reaction
• Development of compound microsatellite markers in the toxic dinoflagellate Alexandrium catenella (Dinophyceae)
• Quantification of lipophilic toxins associated with diarrhetic shellfish poisoning in Japanese bivalves by liquid chromatography-mass spectrometry and comparison with mouse bioassay
• Successful cultivation of the toxic dinoflagellate Dinophysis caudata (Dinophyceae)
• The first detection of okadaic acid and its derivatives in Korean bivalves by liquid chromatography-mass spectrometry

スポンサーリンク