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作 者:MENG Deting SHI Jiaoxia LI Moli WEI Zhongcheng WANG Yangrui XU Yiqiang LI Yubo BAO Zhenmin HU Xiaoli
机构地区:[1]MOE Key Laboratory of Marine Genetics and Breeding,College of Marine Life Sciences,Ocean University of China,Qingdao 266003,China [2]Laboratory for Marine Fisheries Science and Food Production Processes,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266237,China [3]Laboratory of Tropical Marine Germplasm Resources and Breeding Engineering,Sanya Oceanographic Institution,Ocean University of China,Sanya 572000,China
出 处:《Journal of Ocean University of China》2023年第1期251-257,共7页中国海洋大学学报(英文版)
基 金:funded by the National Key R&D Project(No.2019YFC1605704);the Taishan Industry Leading Talent Project(No.LJNY201816);supported by Sanya Yazhou Bay Science and Technology City(No.SKJCKJ-2019KY01).
摘 要:Bivalve farming plays a dominant role in mariculture in China.Paralytic shellfish toxins(PSTs)can be accumulated in bivalves and cause poisoning the consumers.A sensitive detection of PSTs can provide early warning to decrease poisoning events in bivalve consuming.PSTs are traditionally examined using the whole soft-tissues.However,PSTs accumulation varies dramatically in different tissues of bivalves.Some tough tissues/organs(such as mantle),which account for a large proportion of the total soft body,exhibit a lower accumulation of PSTs and make the toxin extraction time-and reagent-consuming,potentially decreasing the accuracy and sensitivity of PSTs monitoring in bivalves.To develop a sensitive and cost-effective approach for PSTs examination in massively farmed bivalves,we fed three commercially important bivalves,Yesso scallop Patinopecten yessoensis,Pacific oyster Crassostrea gigas,and blue mussel Mytilus edulis with PSTs-producing dinoflagellate Alexandrium catenella,and detected PSTs concentration in different tissues.For all three bivalve species,the digestive gland accumulated much more PSTs than other tissues,and the digestive gland’s toxicity was significantly correlated with the PSTs toxicity of the whole soft-tissues,with r^(2)=0.94,0.92,and 0.94 for Yesso scallop,Pacific oyster,and blue mussel,respectively.When the toxicity of the whole soft-tissues reached 80μgSTXeq(100g)^(−1),the regulatory limit for commercial shellfish,the digestive gland’s toxicity reached 571.48,498.90,and 859.20μgSTXeq(100g)^(−1) in Yesso scallop,Pacific oyster,and blue mussel,respectively.Our results indicate that digestive gland can be used for the sensitive and cost-effective monitoring of PSTs in bivalves.
关 键 词:paralytic shellfish toxins MONITORING BIVALVE early warning digestive gland
分 类 号:TS254.7[轻工技术与工程—水产品加工及贮藏工程]
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