| Effects of Zn Stress on Zn Accumulation and Anti-Oxidant Enzymes Activity in Four Varieties of Ryegrass |
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| 作者姓名： | XU Wei-hong~ XIONG Zhi-ting~ HUANG He~. College of Resources and Environmental Sciences Wuhan University Wuhan Hubei China . College of Resources and Environmental Sciences Southwest University Chongqing China |
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| 作者单位： | XU Wei-hong~1，2，XIONG Zhi-ting~1，HUANG He~11. College of Resources and Environmental Sciences，Wuhan University，Wuhan 430072，Hubei，China;2. College of Resources and Environmental Sciences，Southwest University，Chongqing 400715，China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （29877021） |
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| 摘 要： | 0IntroductionOxpihdeantiovmee sntornes isn c agrueseedn bplyan htesa1v]y. mAenttai-lso xiisda ati ounsu oalfplantsis an i mportant adaptive mechanismto the disad-vantage environment2].Anti-oxidationenzyme systeminplants is pri marily involved with super…
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| 关 键 词： | 锌聚集 厌氧酶 黑麦草 植物生长 酶活性 |
| 文章编号： | 1007-1202（2005）06-1051-06 |
| 收稿时间： | 2005-01-06 |
Effects of Zn stress on Zn accumulation and anti-oxidant enzymes activity in four varieties of ryegrass |
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| Xu Wei-hong,Xiong Zhi-ting,Huang He.Effects of Zn Stress on Zn Accumulation and Anti-Oxidant Enzymes Activity in Four Varieties of Ryegrass[J].Wuhan University Journal of Natural Sciences,2005,10(6):1051-1056. |
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| Authors: | Xu Wei-hong Xiong Zhi-ting Huang He |
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| Institution: | (1) College of Resources and Environmental Science, Wuhan University, 430072 Wuhan, Hubei, China;(2) College of Resources and Environmental Sciences, Southwest University, 400715 Chongqing, China |
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| Abstract: | We investigated the influence of different content of Zn2+ (0, 2, 4, 8, 16 mmol·kg1) on plant growth, activities of peroxidase (POD) and superoxide dismutase (SOD), free proline content and Zn accumulation
in four varieties of ryegrass (Loliurn pereme L.) by pot culture experiment. The results showed that plant biomass increased at the ranges of 0–2 (Tuoya). 0–4 (Yeying),
0–8 mmol·kg1 (Airuisi and Taide), respectively, and then decreased under excess Zn. The activities of POD, SOD and proline content in
shoots decreased firstly, and then increased with the increase of Zn content. The plant biomass, activities of POD and SOD
in Taide were evidently higher than in the other three varieties. Root tolerance index (RTI) and Zn transport ratio from root
to shoot (S/R) in Taide were excced 1.0. The maximum of Zn content was 583.9 mg/kg (at 16 mmol·kg1) in Taide’s shoot.
Foundation item: Supported by the National Natural Science Foundation of China (29877021)
Biography: XU Wei-hong (1969-), female, Ph.D. candidate, Associate professor, research direction: plant nutrition and environment. |
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| Keywords: | Zn ryegrass anti-oxidation enzyme proline Zn accumulation resistance |
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