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学科主题: Plant Sciences
题名: Antioxidative responses of Elodea nuttallii (Planch.) H. St. John to short-term iron exposure
作者: Xing, Wei1; Li, Dunhai2; Liu, Guihua1
通讯作者: Liu, GH, Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China
关键词: Iron ; Physiological characteristics ; Antioxidative response ; Elodea nuttallii (Planch.) H. St. John
刊名: PLANT PHYSIOLOGY AND BIOCHEMISTRY
发表日期: 2010-10-01
DOI: 10.1016/j.plaphy.2010.08.006
卷: 48, 期:10-11, 页:873-878
收录类别: SCI
文章类型: Article
部门归属: [Xing, Wei; Liu, Guihua] Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China; [Li, Dunhai] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National S&T Major Projects [2008ZX07103-004, 2008ZX07002-005]
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
摘要: Antioxidative responses of Elodea nuttallii (Planch.) H. St. John to short-term iron exposure were investigated in the study. Results showed that iron accumulation in E. nuttallii was concentration dependent. Growth of E. nuttallii was promoted by low iron concentration (1-10 mg L-1 [Fe3+]), but growth inhibition was observed when iron concentration beyond 10 mg L-1. The synthesis of protein and pigments increased within 1-10 mg L-1 [Fe3+] range. The activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD) and glutathione-S-transferase (GST) were up to maximal values at 10 mg L-1 [Fe3+]. High iron concentration inhibited the synthesis of protein and pigments as well as activities of antioxidative enzymes, and accelerated degradation of pigment and production of ROS. Low iron concentration had no significant influences on PSII maximal quantum yield, activity of PSII and relative electron transport rate though PSII. Malondialdehyde (MDA) and proline concentrations were highest at 100 and 1 mg L-1 [Fe3+], respectively. (C) 2010 Elsevier Masson SAS. All rights reserved.
英文摘要: Antioxidative responses of Elodea nuttallii (Planch.) H. St. John to short-term iron exposure were investigated in the study. Results showed that iron accumulation in E. nuttallii was concentration dependent. Growth of E. nuttallii was promoted by low iron concentration (1-10 mg L(-1) [Fe(3+)]), but growth inhibition was observed when iron concentration beyond 10 mg L(-1). The synthesis of protein and pigments increased within 1-10 mg L(-1) [Fe(3+)] range. The activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD) and glutathione-S-transferase (GST) were up to maximal values at 10 mg L(-1) [Fe(3+)]. High iron concentration inhibited the synthesis of protein and pigments as well as activities of antioxidative enzymes, and accelerated degradation of pigment and production of ROS. Low iron concentration had no significant influences on PSII maximal quantum yield, activity of PSII and relative electron transport rate though PSII. Malondialdehyde (MDA) and proline concentrations were highest at 100 and 1 mg L(-1) [Fe(3+)], respectively. (C) 2010 Elsevier Masson SAS. All rights reserved.
关键词[WOS]: INDUCED OXIDATIVE STRESS ; VERTICILLATA L.F. ROYLE ; DUCKWEED LEMNA-MINOR ; BACOPA-MONNIERI L ; PHYSIOLOGICAL-RESPONSES ; GLUTATHIONE METABOLISM ; LIPID-PEROXIDATION ; CADMIUM EXPOSURE ; AQUATIC PLANT ; COPPER
语种: 英语
WOS记录号: WOS:000284342800010
ISSN号: 0981-9428
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/13667
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China

Recommended Citation:
Xing, Wei; Li, Dunhai; Liu, Guihua.Antioxidative responses of Elodea nuttallii (Planch.) H. St. John to short-term iron exposure,PLANT PHYSIOLOGY AND BIOCHEMISTRY,2010,48(10-11):873-878
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