Accumulation of Microcystin (LR, RR and YR) in Three Freshwater Bivalves in Microcystis aeruginosa Bloom Using Dual Isotope Tracer SCIE SCOPUS

Cited 13 time in WEB OF SCIENCE Cited 12 time in Scopus
Title
Accumulation of Microcystin (LR, RR and YR) in Three Freshwater Bivalves in Microcystis aeruginosa Bloom Using Dual Isotope Tracer
Author(s)
Kim, Min-Seob; Lee, Yeonjung; Ha, Sun-Yong; Kim, Baik-Ho; Hwang, Soon-Jin; Kwon, Jung-Taek; Choi, Jong-Woo; Shin, Kyung-Hoon
KIOST Author(s)
Lee, Yeonjung(이연정)
Publication Year
2017-07
Abstract
Stable isotope tracers were first applied to evaluate the Microcystis cell assimilation efficiency of Sinanodonta bivalves, since the past identification method has been limited to tracking the changes of each chl-a, clearity, and nutrient. The toxicity profile and accumulation of MC-LR, -RR and -YR in different organs (foot and digestive organs) from the three filter-feeders (Sinanodonta woodiana, Sinanodonta arcaeformis, and Unio douglasiae) were assessed under the condition of toxigenic cyanobacteria (Microcystis aeruginosa) blooms through an in situ pond experiment using C-13 and N-15 dual isotope tracers. Chl-a concentration in the manipulated pond was dramatically decreased after the beginning of the second day, ranging from 217.5 to 15.6 mu g.L-1. The highest amount of MCs was incorporated into muscle and gland tissues in U. douglasiae during the study period, at early 2 or 3 times higher than in S. woodiana and S. arcaeformis. In addition, the incorporated C-13 and N-15 atom % in the U. douglasiae bivalve showed lower values than in other bivalves. The results demonstrate that U. douglasiae has less capacity to assimilate toxic cyanobacteria derived from diet. However, the incorporated C-13 and N-15 atom % of S. arcaeformis showed a larger feeding capacity than U. douglasiae and S. woodiana. Our results therefore also indicate that S. arcaeformis can eliminate the toxin more rapidly than U. douglasiae, having a larger detoxification capacity.
ISSN
1660-3397
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/40353
DOI
10.3390/md15070226
Bibliographic Citation
MARINE DRUGS, v.15, no.7, 2017
Publisher
MDPI
Subject
CYANOBACTERIAL TOXIN MICROCYSTIN; DREISSENA-POLYMORPHA; ANODONTA-WOODIANA; ZEBRA MUSSELS; LAKE; DELTA-C-13; STREAM; FISH; CONSUMPTION; GLUTATHIONE
Keywords
stable isotope tracer; U. douglasiae; S. woodiana; S. arcaeformis; toxic microcystin; M. aeruginosa
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
Related Researcher
Research Interests

Marine biogeochemistry,Stable isotope ecology,해양생지화학,안정동위원소 생태학

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