TY - JOUR
T1 - Effect of a polybrominated diphenyl ether congener (BDE-47) on growth and antioxidative enzymes of two mangrove plant species, Kandelia obovata and Avicennia marina, in South China
AU - Wang, Ying
AU - Zhu, Haowen
AU - Tam, Nora Fung Yee
N1 - Funding Information:
The work described in this paper was financially supported by Research Fund from City University of Hong Kong (Project No. 7002847) and the State Key Laboratory in Marine Pollution (Project No. 9360136).
PY - 2014/8/30
Y1 - 2014/8/30
N2 - The effects of BDE-47 on the growth and antioxidative responses of the seedlings of Kandelia obovata (Ko) and Avicennia marina (Am) were compared in an 8-week hydroponic culture spiked with different levels of BDE-47, 0.1, 1, 5 and 10mgl-1. The two highest BDE-47 levels significantly suppressed the growth and increased the activities of three antioxidative enzymes, superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), of Ko in week 1. However, SOD and POD activities at high levels of BDE-47 became lower than the control in week 8. On the contrary, growth of Am was not affected at all contamination levels, and the activities of three enzymes were enhanced by BDE-47 in weeks 1 and 4, but such stimulatory effect became insignificant in week 8. Avicennia was more tolerant to BDE-47 toxicity than Kandelia, as its antioxidative enzymes could better counter-balance the oxidative stress caused by BDE-47.
AB - The effects of BDE-47 on the growth and antioxidative responses of the seedlings of Kandelia obovata (Ko) and Avicennia marina (Am) were compared in an 8-week hydroponic culture spiked with different levels of BDE-47, 0.1, 1, 5 and 10mgl-1. The two highest BDE-47 levels significantly suppressed the growth and increased the activities of three antioxidative enzymes, superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), of Ko in week 1. However, SOD and POD activities at high levels of BDE-47 became lower than the control in week 8. On the contrary, growth of Am was not affected at all contamination levels, and the activities of three enzymes were enhanced by BDE-47 in weeks 1 and 4, but such stimulatory effect became insignificant in week 8. Avicennia was more tolerant to BDE-47 toxicity than Kandelia, as its antioxidative enzymes could better counter-balance the oxidative stress caused by BDE-47.
KW - Antioxidative enzymes
KW - Catalase (CAT)
KW - Mangroves
KW - PBDE toxicity
KW - Peroxidase (POD)
KW - Superoxide dismutase (SOD)
UR - http://www.scopus.com/inward/record.url?scp=84906282188&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2014.02.012
DO - 10.1016/j.marpolbul.2014.02.012
M3 - Article
C2 - 24631399
AN - SCOPUS:84906282188
SN - 0025-326X
VL - 85
SP - 376
EP - 384
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
IS - 2
ER -