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	Uptake and biodegradation of polycyclic aromatic hydrocarbons by marine seaweed
	Wang, X. -C.1,2; Zhao, H. -M.1
刊名	Journal of coastal research
	2007
页码	1056-1061
关键词	Marine organic pollution Phytoremediation Metabolism Polycyclic aromatic hydrocarbons Seaweed
ISSN号	0749-0208
通讯作者	Wang, x. -c.(xuchenwang@ms.qdio.ac.cn)
英文摘要	The distribution and fate of polycyclic aromatic hydrocarbons (pahs) in coastal waters are of global environmental concern due to their mutagenic and carcinogenic effects within ecosystems. in this study, we investigated the uptake and biodegradation of two pahs (phenanthrene and pyrene) by a brown seaweed laminaria joapnica, a common macrophytic plant grown in the near shore waters along the east china coast. in laboratory culture, the seaweed showed great ability to take up and metabolise phenanthrene and pyrene. the uptake and degradation appeared to be rapid processes and concentration-dependent. at a pam concentration level of 0.1 mg/l, laminaria joapnica tolerated and survived well for up to two weeks and > 90% phenanthrene and pyrene were removed and subsequently degraded. the metabolism of phenanthrene and pyrene in seaweed tissues was carried mainly by the enzyme-oxidation process converting pahs to less or non-toxic forms of compounds. at high concentration levels (> 0.2 mg/l), however, the toxic nature of pahs to the seaweed was significant, and resulted in serious damage and destruction to tissue. our study suggests that in natural pah contamination levels found in coastal waters, laminaria joapnica could play an important role in removing pahs and possibly other organic pollutants from sea water, thus serving as an 'environmentally-friendly' bioremediation system protecting ecological health and marine life.
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography ; Geology
WOS类目	Environmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary
语种	英语
出版者	COASTAL EDUCATION & RESEARCH FOUNDATION
WOS记录号	WOS:000207860300192
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2380733
专题	中国科学院大学
通讯作者	Wang, X. -C.
作者单位	1.Chinese Acad Sci, Inst Oceanol, Grad Univ, Qingdao 266071, Peoples R China 2.Univ Massachusetts, Dept Environm Earth & Ocean Sci, Boston, MA 02125 USA
推荐引用方式 GB/T 7714	Wang, X. -C.,Zhao, H. -M.. Uptake and biodegradation of polycyclic aromatic hydrocarbons by marine seaweed[J]. Journal of coastal research,2007:1056-1061.
APA	Wang, X. -C.,&Zhao, H. -M..(2007).Uptake and biodegradation of polycyclic aromatic hydrocarbons by marine seaweed.Journal of coastal research,1056-1061.
MLA	Wang, X. -C.,et al."Uptake and biodegradation of polycyclic aromatic hydrocarbons by marine seaweed".Journal of coastal research (2007):1056-1061.

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