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Association of antioxidative enzymes with the synergistic effect of selenium and UV irradiation in enhancing plant growth
Xue, TL; Hartikainen, H
2000
Source PublicationAGRICULTURAL AND FOOD SCIENCE IN FINLAND
Volume9Issue:2Pages:177-186
AbstractSelenium (Se) is able to defend human and animal cells against UV(B) stress. Higher plants are generally considered not to require Se but to have a low tolerance to it. However, recently it has been demonstrated that Se is able to protect also plants against UV-induced oxidative stress and even to promote the growth of plants subjected to high-energy light. In the present study the effects of Se on antioxidative enzymes possibly associated with this synergistic effect were investigated. Ryegrass and lettuce were grown in soil supplemented with Se at 0, 0.1 or 1.0 mg kg(-1) under normal light or subjected to UV episodes. Lipid peroxidation and the changes of antioxidative enzymes were measured at two growing stages. The positive synergistic effect of the lower Se dosage and UV was found to be at least partly associated with the antioxidative role of Se through increased glutathione peroxidase (GSH-Px) and catalase (CRT) activity, whereas ascorbate peroxidase (APX) responded negatively to both factors. The contribution of the other enzymes studied seemed to be plant-specific: glutathione S-transferase (GST) increased in both ryegrass assays and superoxide dismutase (SOD) in the first lettuce assay. At the higher addition level Se acted as a pro-oxidant and diminished fresh weight yields. UV irradiation alleviated the toxicity coincidently with increase of CAT in ryegrass and SOD in lettuce.
SubtypeArticle
KeywordAscorbate Peroxidase Catalase Enzymes Glutathione Peroxidase Glutathione S-transferase Lipid Peroxidation Selenium Superoxide Dismutase Ultraviolet Radiation
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedAgriculture ; Food Science & Technology
WOS KeywordULTRAVIOLET-IRRADIATION ; GLUTATHIONE-PEROXIDASE ; L-SELENOMETHIONINE ; HYDROGEN-PEROXIDE ; DAMAGE ; OZONE
Indexed BySCI
Language英语
WOS SubjectAgriculture, Multidisciplinary ; Food Science & Technology
WOS IDWOS:000088009600007
PublisherAGRICULTURAL RESEARCH CENTRE FINLAND
Citation statistics
Cited Times:63[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68278
Collection中国科学院地理科学与资源研究所
Corresponding AuthorXue, TL
Affiliation1.Chinese Acad Sci, Inst Geog, Beijing 100101, Peoples R China
2.Univ Helsinki, Dept Appl Chem & Microbiol, FIN-00014 Helsinki, Finland
Recommended Citation
GB/T 7714
Xue, TL,Hartikainen, H. Association of antioxidative enzymes with the synergistic effect of selenium and UV irradiation in enhancing plant growth[J]. AGRICULTURAL AND FOOD SCIENCE IN FINLAND,2000,9(2):177-186.
APA Xue, TL,&Hartikainen, H.(2000).Association of antioxidative enzymes with the synergistic effect of selenium and UV irradiation in enhancing plant growth.AGRICULTURAL AND FOOD SCIENCE IN FINLAND,9(2),177-186.
MLA Xue, TL,et al."Association of antioxidative enzymes with the synergistic effect of selenium and UV irradiation in enhancing plant growth".AGRICULTURAL AND FOOD SCIENCE IN FINLAND 9.2(2000):177-186.
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