TY - JOUR
T1 - Toxicity of bisphenol A and its bioaccumulation and removal by a marine microalga Stephanodiscus hantzschii
AU - Li, Rui
AU - Chen, Gui Zhu
AU - Tam, Nora Fung Yee
AU - Luan, Tian Gang
AU - Shin, Paul K.S.
AU - Cheung, S. G.
AU - Liu, Yu
N1 - Funding Information:
This study was supported by grants from the National Natural Science Foundation of China (No. 40576057) as well as from City U (Project number: 7002316). The authors gratefully acknowledge the support of Futian-City Mangrove Research & Development Centre and Futian Nature Reserve. This study was conducted in accordance with the Chinese National Environmental Protection Bureau guidelines, but did not involve human subjects and animal welfare.
PY - 2009/2
Y1 - 2009/2
N2 - The toxicity of bisphenol A (BPA) to Stephanodiscus hantzschii, a diatom isolated from tidal water of Futian Mangrove Nature Reserve, China, and the bioaccumulation and removal capability of the marine microalga to BPA were investigated in the present study. Toxicity experiments showed that the 96-h EC50 of BPA was 8.65±0.26 mg/L, and the cell number and chlorophyll a content of S. hantzschii decreased significantly with increases in BPA at concentrations higher than 3.00 mg/L. S. hantzschii had high removal capability at low BPA concentrations as BPA was bioaccumulated and biodegraded by cells. After 16-day treatment, 88%, 99%, 92%, 61%, 48%, 28% and 26% of BPA were removed by the diatom in the media supplemented with 0.01, 0.10, 1.00, 3.00, 5.00, 7.00 and 9.00 mg/L BPA, respectively. The present study demonstrated that S. hantzschii was a tolerant isolate that could be used to remove BPA from contaminated waters.
AB - The toxicity of bisphenol A (BPA) to Stephanodiscus hantzschii, a diatom isolated from tidal water of Futian Mangrove Nature Reserve, China, and the bioaccumulation and removal capability of the marine microalga to BPA were investigated in the present study. Toxicity experiments showed that the 96-h EC50 of BPA was 8.65±0.26 mg/L, and the cell number and chlorophyll a content of S. hantzschii decreased significantly with increases in BPA at concentrations higher than 3.00 mg/L. S. hantzschii had high removal capability at low BPA concentrations as BPA was bioaccumulated and biodegraded by cells. After 16-day treatment, 88%, 99%, 92%, 61%, 48%, 28% and 26% of BPA were removed by the diatom in the media supplemented with 0.01, 0.10, 1.00, 3.00, 5.00, 7.00 and 9.00 mg/L BPA, respectively. The present study demonstrated that S. hantzschii was a tolerant isolate that could be used to remove BPA from contaminated waters.
KW - Bioaccumulation
KW - Bisphenol A
KW - Removal
KW - Stephanodiscus hantzschii
KW - Toxicity
UR - http://www.scopus.com/inward/record.url?scp=54949113628&partnerID=8YFLogxK
U2 - 10.1016/j.ecoenv.2008.05.012
DO - 10.1016/j.ecoenv.2008.05.012
M3 - Article
C2 - 18639342
AN - SCOPUS:54949113628
SN - 0147-6513
VL - 72
SP - 321
EP - 328
JO - Ecotoxicology and Environmental Safety
JF - Ecotoxicology and Environmental Safety
IS - 2
ER -