PMID- 32220740
OWN - NLM
STAT- MEDLINE
DCOM- 20200710
LR  - 20200710
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 723
DP  - 2020 Jun 25
TI  - The toxicity, bioaccumulation and debromination of BDE-47 and BDE-209 in 
      Chlorella sp. under multiple exposure modes.
PG  - 138086
LID - S0048-9697(20)31599-0 [pii]
LID - 10.1016/j.scitotenv.2020.138086 [doi]
AB  - Polybrominated diphenyl ethers (PBDEs) are a series of important persistent 
      organic pollutants (POPs) in marine environments. Microalgae are the start of 
      PBDEs bioaccumulated and bioconcentrated along the marine food web. In order to 
      investigate the variations of PBDEs bioaccumulation by microalgae and its 
      influencing factors, we set up a series of experiments with Chlorella sp. under 
      different BDE-47 or BDE-209 exposure modes to measure their toxicity, 
      bioaccumulation and degradation patterns. The inhibition effect on cell growth 
      was much more obvious in BDE-47 than BDE-209, with the EC(50) values at 96 h 
      calculated as 64.7 mug L(-1) and 4070 mug L(-1), respectively. Microalgal uptake 
      rates showed BDE-209 diffused less into cells than BDE-47, with highest measured 
      uptake rates of 0.145 x 10(-7) mug h(-1) cell(-1) and 0.45 x 10(-7) mug h(-1) 
      cell(-1), respectively. The bioaccumulation amount by unit microalgal cell varied 
      with PBDE concentrations and culture time, which appeared to be related to the 
      changes of extracellular polymeric substances (EPS) and cellular neutral lipids 
      under the toxicity of PBDEs. Finally, we found Chlorella sp. delayed the 
      debromination patterns of BDE-209 compared to seawater. This study linked the 
      toxicity, microalgal bioaccumulation and metabolism of PBDEs, provided new 
      insights in the research of POPs by microalgae and marine food webs.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Lv, Mengchen
AU  - Lv M
AD  - Department of Marine Ecology, Ocean University of China, Qingdao 266003, China.
FAU - Tang, Xuexi
AU  - Tang X
AD  - Department of Marine Ecology, Ocean University of China, Qingdao 266003, China; 
      Laboratory for Marine Ecology and Environmental Science, Qingdao National 
      Laboratory for Marine Science and Technology, Qingdao 266071, China.
FAU - Zhao, Yirong
AU  - Zhao Y
AD  - Department of Marine Ecology, Ocean University of China, Qingdao 266003, China.
FAU - Li, Jun
AU  - Li J
AD  - Department of Marine Ecology, Ocean University of China, Qingdao 266003, China.
FAU - Zhang, Bihan
AU  - Zhang B
AD  - Department of Marine Ecology, Ocean University of China, Qingdao 266003, China.
FAU - Li, Luying
AU  - Li L
AD  - Department of Marine Ecology, Ocean University of China, Qingdao 266003, China.
FAU - Jiang, Yongshun
AU  - Jiang Y
AD  - College of Marine Science and Technology, Qingdao Agricultural University, No.17 
      Wenhai Road, Qingdao 266000, China.
FAU - Zhao, Yan
AU  - Zhao Y
AD  - Department of Marine Ecology, Ocean University of China, Qingdao 266003, China; 
      Laboratory for Marine Ecology and Environmental Science, Qingdao National 
      Laboratory for Marine Science and Technology, Qingdao 266071, China. Electronic 
      address: zhaoyan@ouc.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20200320
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Halogenated Diphenyl Ethers)
RN  - 0 (Water Pollutants, Chemical)
RN  - 0N97R5X10X (2,2',4,4'-tetrabromodiphenyl ether)
RN  - N80BQ29A0H (decabromobiphenyl ether)
SB  - IM
MH  - Bioaccumulation
MH  - *Chlorella
MH  - Halogenated Diphenyl Ethers/analysis
MH  - Water Pollutants, Chemical/*analysis
OTO - NOTNLM
OT  - Bioaccumulation
OT  - Chlorella sp.
OT  - Debromination
OT  - EPS
OT  - Lipids
OT  - PBDEs
OT  - Toxicity
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/03/30 06:00
MHDA- 2020/07/11 06:00
CRDT- 2020/03/30 06:00
PHST- 2020/01/15 00:00 [received]
PHST- 2020/02/25 00:00 [revised]
PHST- 2020/03/19 00:00 [accepted]
PHST- 2020/03/30 06:00 [pubmed]
PHST- 2020/07/11 06:00 [medline]
PHST- 2020/03/30 06:00 [entrez]
AID - S0048-9697(20)31599-0 [pii]
AID - 10.1016/j.scitotenv.2020.138086 [doi]
PST - ppublish
SO  - Sci Total Environ. 2020 Jun 25;723:138086. doi: 10.1016/j.scitotenv.2020.138086. 
      Epub 2020 Mar 20.