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Effects of microcystins on the growth and the activity of superoxide dismutase and peroxidase of rape (Brassica napus L.) and rice (Oryza sativa L.)
Chen, JZ; Song, LR; Dai, E; Gan, NQ; Liu, ZL; Liu, ZL, Nanjing Univ, Sch Life Sci, Dept Biol, Nanjing 210093, Peoples R China
2004-03-15
Source PublicationTOXICON
ISSN0041-0101
Volume43Issue:4Pages:393-400
AbstractMicrocystins are naturally occurring hepatotoxic cyclic heptapeptides produced by some toxic freshwater cyanobacterial species. In this study, crude extract of toxic cyanobacterial blooms from Dianchi Lake in southwestern China was used to determine the effects of microcystins on rape (Brassica napus L.) and rice (Oryza sativa L.). Experiments were carried out on a range of doses of the extract (equivalent to 0, 0.024, 0.12, 0.6 and 3 mug MC-LR/ml). Investigations showed that exposure to microcystins inhibited the growth and development of both rice and rape seedlings, however, microcystins had more powerful inhibition effect on rape than rice in germination percentage of seeds and seedling height. Microcystins significantly inhibited the elongation of primary roots of rape and rice seedlings. Determination of the activities of peroxidase and superoxide dismutase demonstrated that microcystin stress was manifested as an oxidative stress. Using ELISA, microcystins were examined from the extract of exposed rape and rice seedlings, indicating that consumption of edible plants exposed to microcystins via irrigation route may have health risks. Significantly different levels of recovered microcystins between exposed rice and rape seedlings Suggested that there might be different tolerant mechanisms toward microcystins. (C) 2004 Elsevier Ltd. All rights reserved.; Microcystins are naturally occurring hepatotoxic cyclic heptapeptides produced by some toxic freshwater cyanobacterial species. In this study, crude extract of toxic cyanobacterial blooms from Dianchi Lake in southwestern China was used to determine the effects of microcystins on rape (Brassica napus L.) and rice (Oryza sativa L.). Experiments were carried out on a range of doses of the extract (equivalent to 0, 0.024, 0.12, 0.6 and 3 mug MC-LR/ml). Investigations showed that exposure to microcystins inhibited the growth and development of both rice and rape seedlings, however, microcystins had more powerful inhibition effect on rape than rice in germination percentage of seeds and seedling height. Microcystins significantly inhibited the elongation of primary roots of rape and rice seedlings. Determination of the activities of peroxidase and superoxide dismutase demonstrated that microcystin stress was manifested as an oxidative stress. Using ELISA, microcystins were examined from the extract of exposed rape and rice seedlings, indicating that consumption of edible plants exposed to microcystins via irrigation route may have health risks. Significantly different levels of recovered microcystins between exposed rice and rape seedlings Suggested that there might be different tolerant mechanisms toward microcystins. (C) 2004 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordMicrocystins Brassica Napus l Oryza Sativa l Seed Germination Plant Growth Superoxide Dismutase Peroxidase Enzyme-linked Immunosorbent Assay
DepartmentNanjing Univ, Sch Life Sci, Dept Biol, Nanjing 210093, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Wuhan 420073, Peoples R China; Jiangsu Acad Agr Sci, Multi Analyt Ctr, Nanjing 210014, Peoples R China
Subject AreaPharmacology & Pharmacy ; Toxicology
DOI10.1016/j.toxicon.2004.01.011
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaPharmacology & Pharmacy ; Toxicology
WOS SubjectPharmacology & Pharmacy ; Toxicology
WOS IDWOS:000221021400005
WOS KeywordPROTEIN PHOSPHATASE-ACTIVITY ; INDUCIBLE GENE-EXPRESSION ; INDUCED DNA-DAMAGE ; CYANOBACTERIAL TOXINS ; OXIDATIVE STRESS ; IN-VIVO ; LR ; WATER ; AERUGINOSA ; EXPOSURE
Citation statistics
Cited Times:128[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9504
Collection期刊论文
Corresponding AuthorLiu, ZL, Nanjing Univ, Sch Life Sci, Dept Biol, Nanjing 210093, Peoples R China
Affiliation1.Nanjing Univ, Sch Life Sci, Dept Biol, Nanjing 210093, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 420073, Peoples R China
3.Jiangsu Acad Agr Sci, Multi Analyt Ctr, Nanjing 210014, Peoples R China
Recommended Citation
GB/T 7714
Chen, JZ,Song, LR,Dai, E,et al. Effects of microcystins on the growth and the activity of superoxide dismutase and peroxidase of rape (Brassica napus L.) and rice (Oryza sativa L.)[J]. TOXICON,2004,43(4):393-400.
APA Chen, JZ,Song, LR,Dai, E,Gan, NQ,Liu, ZL,&Liu, ZL, Nanjing Univ, Sch Life Sci, Dept Biol, Nanjing 210093, Peoples R China.(2004).Effects of microcystins on the growth and the activity of superoxide dismutase and peroxidase of rape (Brassica napus L.) and rice (Oryza sativa L.).TOXICON,43(4),393-400.
MLA Chen, JZ,et al."Effects of microcystins on the growth and the activity of superoxide dismutase and peroxidase of rape (Brassica napus L.) and rice (Oryza sativa L.)".TOXICON 43.4(2004):393-400.
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