| Effect of salt stress on activity of superoxide dismutase （SOD） in Ulmus pumila L. |
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| 引用本文： | SONG Fu-nan YANG Chuan-ping LIU Xue-mei LI Gong-bin. Effect of salt stress on activity of superoxide dismutase （SOD） in Ulmus pumila L.[J]. 林业研究, 2006, 17(1): 13-16. DOI: 10.1007/s11676-006-0003-7 |
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| 作者姓名： | SONG Fu-nan YANG Chuan-ping LIU Xue-mei LI Gong-bin |
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| 作者单位： | Northeast Forestry University Harbin 150040, P. R. China |
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| 基金项目： | This work was supported by a grant from Heilongjiang Province Science Fund for Distinguished Young Scholars. |
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| 摘 要： | The injury tolerance of cell plasma membrane and the correlative enzymes activities of plasma-membrane protection system in the Ulmuspumila leaves treated by nine concentrations （0.3%, 0.6%, 0,9%, 1,2%, 1.5%, 1.8%, 2,1%, 2.4%, 3.0%） of Na2CO3 and NaHCO3 mixtures were studied in a greenhouse of Northeast Forestry University, Harbin, China. The rate of electrolyte leakage （REL） and SOD （Superoxide dismutase） activity in leaves of different samples were determined. Results showed that the REL in leaves of U. pumila presented a slowly increasing trend at the salt concentrations less than 1.5%, which indicated that cell plasma membrane of U. pumila leaves had rather strong resistance to the injury of salt ion, and had a significant increase at the salt concentrations more than 1.5%. The SOD activities in leaves of U, pumila presented an increased trend at salt concentrations less than 1.5%, the growth of seedlings did not decline, and tress and leaves had no symptom of injury, while the salt concentrations exceeded 1.5%, SOD activities sharply decreased and REL increased promptly.
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| 关 键 词： | 盐应力 电解液 过氧化物 岐化酶 胁迫生理学 |
| 文章编号： | 1007-662X（2006）01-0013-04 |
| 收稿时间： | 2005-11-08 |
| 修稿时间： | 2006-01-12 |
Effect of salt stress on activity of superoxide dismutase (SOD) in Ulmus pumila L. |
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| Fu-nan Song,Chuan-ping Yang,Xue-mei Liu,Gong-bin Li. Effect of salt stress on activity of superoxide dismutase (SOD) in Ulmus pumila L.[J]. Journal of Forestry Research, 2006, 17(1): 13-16. DOI: 10.1007/s11676-006-0003-7 |
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| Authors: | Fu-nan Song Chuan-ping Yang Xue-mei Liu Gong-bin Li |
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| Affiliation: | (1) Northeast Forestry University, Harbin, 150040, P. R. China |
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| Abstract: | The injury tolerance of cell plasma membrane and the correlative enzymes activities of plasma-membrane protection system in the Ulmus pumila leaves treated by nine concentrations (0.3%, 0.6%, 0.9%, 1.2%, 1.5%, 1.8%, 2.1%, 2.4%, 3.0%) of Na2CO3 and NaHCO3 mixtures were studied in a greenhouse of Northeast Forestry University, Harbin, China. The rate of electrolyte leakage (REL) and SOD (Superoxide dismutase) activity in leaves of different samples were determined. Results showed that the REL in leaves of U. pumila presented a slowly increasing trend at the salt concentrations less than 1.5%, which indicated that cell plasma membrane of U. pumila leaves had rather strong resistance to the injury of salt ion, and had a significant increase at the salt concentrations more than 1.5%. The SOD activities in leaves of U. pumila presented an increased trend at salt concentrations less than 1.5%, the growth of seedlings did not decline, and tress and leaves had no symptom of injury, while the salt concentrations exceeded 1.5%, SOD activities sharply decreased and REL increased promptly. Biography: SONG Fu-nan (1972–), male, Ph.D. candidate of Northeast Forestry University, Harbin 150040, P. R. China. |
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| Keywords: | Ulmus pumila Salt stress Rate of electrolyte leakage (REL) SOD |
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