Effect of UV-B radiation on the growth and antioxidant enzymes of Antarctic sea ice microalgae Chlamydomonas sp ICE-L

doi:10.1007/s11738-009-0271-x

	Effect of UV-B radiation on the growth and antioxidant enzymes of Antarctic sea ice microalgae Chlamydomonas sp ICE-L
	Wang, Quan-fu 2; Hou, Yan-hua 2; Miao, Jin-lai 1; Li, Guang-you 1
刊名	ACTA PHYSIOLOGIAE PLANTARUM
	2009-11
卷号	31 期号:6 页码:1097-1102
关键词	Antioxidative enzymes Reactive oxygen species Antarctic Microalgae Chlamydomonas sp.
ISSN号	0137-5881
DOI	10.1007/s11738-009-0271-x
英文摘要	The effect of ultraviolet-B (UV-B) radiation on Antarctic phytoplankton has become an attractive ecological issue as a result of annual springtime ozone depletion. The effects of UV-B radiation on the growth and antioxidant enzymes were investigated using Antarctic sea ice microalgae Chlamydomonas sp. ICE-L as the material in this study. The results demonstrated that UV-B radiation could notably inhibit the growth, especially at high UV-B radiation intensity (70 mu W cm(-2)). Malondialdehyde and O-2 (center dot-) content in ICE-L increased rapidly in early days (1-3 days) exposed to UV-B radiation enhancement, then decreased rapidly. In the stress of UV-B radiation enhancement, the superoxide dismutase, peroxidase and Catalase activities of 1-4 days in ICE-L were obviously higher than those in the control, and their activities became higher at high UV-B radiation intensity (70 mu W cm(-2)). These enzymes activity of 7 days would kept stable at low UV-B radiation intensity (35 mu W cm(-2)), but kept high level at high UV-B radiation intensity (70 mu W cm(-2)). However, the ascorbate peroxidase activity in ICE-L kept stable under the stress of UV-B radiation enhancement. The above experimental results indicated that the antioxidant enzyme system played an important role in the adaptation of Antarctic ice microalgae under the UV-B radiation change of Antarctic ecosystems.
资助项目	National Natural Science Foundation of China[40876107]
WOS关键词	ULTRAVIOLET-B ; SYSTEMS ; PHYTOPLANKTON ; CHLOROPLASTS ; DIATOMS ; WATERS ; PLANTS
WOS研究方向	Plant Sciences
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000271067900001
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/27551]
专题	自然资源部第一海洋研究所
通讯作者	Miao, Jin-lai
作者单位	1.First Inst Oceanog, Key Lab Marine Bioact Subst, Qingdao 266061, Shandong, Peoples R China 2.Harbin Inst Technol, Sch Ocean, Weihai 264209, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Quan-fu,Hou, Yan-hua,Miao, Jin-lai,et al. Effect of UV-B radiation on the growth and antioxidant enzymes of Antarctic sea ice microalgae Chlamydomonas sp ICE-L[J]. ACTA PHYSIOLOGIAE PLANTARUM,2009,31(6):1097-1102.
APA	Wang, Quan-fu,Hou, Yan-hua,Miao, Jin-lai,&Li, Guang-you.(2009).Effect of UV-B radiation on the growth and antioxidant enzymes of Antarctic sea ice microalgae Chlamydomonas sp ICE-L.ACTA PHYSIOLOGIAE PLANTARUM,31(6),1097-1102.
MLA	Wang, Quan-fu,et al."Effect of UV-B radiation on the growth and antioxidant enzymes of Antarctic sea ice microalgae Chlamydomonas sp ICE-L".ACTA PHYSIOLOGIAE PLANTARUM 31.6(2009):1097-1102.