PMID- 32902972 OWN - NLM STAT- MEDLINE DCOM- 20210106 LR - 20220531 IS - 1520-5851 (Electronic) IS - 0013-936X (Linking) VI - 54 IP - 19 DP - 2020 Oct 6 TI - Nontarget Screening and Toxicity Evaluation of Diol Esters of Okadaic Acid and Dinophysistoxins Reveal Intraspecies Difference of Prorocentrum lima. PG - 12366-12375 LID - 10.1021/acs.est.0c03691 [doi] AB - High-resolution mass spectrometry (HRMS) analysis with the assistance of molecular networking was used to investigate intracellular toxin profiles of five Prorocentrum lima (P. lima) strains sampled from the north Yellow Sea and South China Sea. Mice were used as a model species for testing the acute toxicity of intracellular okadaic acid (OA) and dinophysistoxins (DTXs) in free and esterified states. Results showed that OA and DTX1 esterified derivatives were detected in all P. lima samples, accounting for 55%-96% of total toxins in five strains. A total of 24 esters and 1 stereoisomer of DTX1 (35S DTX1) were identified based on molecular networking and MS data analysis, 15 esters of which have been reported first. All P. lima strains displayed specific toxin profiles, and preliminary analysis suggested that toxin profiles of the five P. lima strains might be region-related. Moreover, acute toxicity in mice suggested higher toxicity of esters compared with free toxins, which highlights the importance and urgency of attention to esterified toxins in P. lima. FAU - Wu, Haiyan AU - Wu H AUID- ORCID: 0000-0001-5880-3998 AD - Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China. FAU - Chen, Jiaqi AU - Chen J AUID- ORCID: 0000-0002-0925-8492 AD - Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China. FAU - Peng, Jixing AU - Peng J AD - Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China. FAU - Zhong, Yun AU - Zhong Y AD - Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China. FAU - Zheng, Guanchao AU - Zheng G AD - Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China. FAU - Guo, Mengmeng AU - Guo M AD - Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China. FAU - Tan, Zhijun AU - Tan Z AUID- ORCID: 0000-0002-7216-4034 AD - Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China. AD - Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China. FAU - Zhai, Yuxiu AU - Zhai Y AD - Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China. AD - Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China. FAU - Lu, Songhui AU - Lu S AD - College of Life Science and Technology, Jinan University, Guangzhou 510632, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200920 PL - United States TA - Environ Sci Technol JT - Environmental science & technology JID - 0213155 RN - 0 (Esters) RN - 0 (Marine Toxins) RN - 1W21G5Q4N2 (Okadaic Acid) RN - EC 2.3.2.27 (Ubiquitin-Protein Ligases) SB - IM MH - Animals MH - China MH - *Dinoflagellida MH - Esters MH - *Marine Toxins/toxicity MH - Mice MH - Okadaic Acid/toxicity MH - Ubiquitin-Protein Ligases EDAT- 2020/09/10 06:00 MHDA- 2021/01/07 06:00 CRDT- 2020/09/09 17:45 PHST- 2020/09/10 06:00 [pubmed] PHST- 2021/01/07 06:00 [medline] PHST- 2020/09/09 17:45 [entrez] AID - 10.1021/acs.est.0c03691 [doi] PST - ppublish SO - Environ Sci Technol. 2020 Oct 6;54(19):12366-12375. doi: 10.1021/acs.est.0c03691. Epub 2020 Sep 20.