| 锌营养对盐胁迫下水稻幼苗叶片细胞膜和叶绿素荧光特性的影响 |
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| 引用本文： | 徐建明,李才生,毛善国,汪鑫,樊趁英,马惠丽,汪红日.锌营养对盐胁迫下水稻幼苗叶片细胞膜和叶绿素荧光特性的影响[J].安徽农业科学,2008,36(1):119-121. |
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| 作者姓名： | 徐建明 李才生 毛善国 汪鑫 樊趁英 马惠丽 汪红日 |
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| 作者单位： | 淮阴师范学院生物系,江苏淮安,223300;淮阴师范学院生物系,江苏淮安,223300;淮阴师范学院生物系,江苏淮安,223300;淮阴师范学院生物系,江苏淮安,223300;淮阴师范学院生物系,江苏淮安,223300;淮阴师范学院生物系,江苏淮安,223300;淮阴师范学院生物系,江苏淮安,223300 |
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| 基金项目： | 淮阴师范学院教授引进启动基金 |
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| 摘 要： | 目的]探究锌营养对水稻幼苗在盐胁迫下有关细胞保护酶活性、膜脂过氧化情况和叶绿素荧光特性的影响。方法]通过砂培试验,研究锌营养对盐胁迫下水稻幼苗叶片细胞膜和叶绿素荧光特性的影响。结果]结果表明:锌营养能够显著提高其叶片内SOD和POD的活性,减少细胞内电解质的外渗率和MDA的含量,保护了细胞膜的稳定性,特别是在中低锌营养浓度处理(0.5、1.0 mg/L)。同时,锌营养还能减轻因盐胁迫造成的叶片光合机构的破坏程度,提高PSⅡ的最大光化学效率(Fv/Fm),有效光化学效率(Fv′/Fm′)及PSⅡ电子传递量子效率(PSⅡ),并提高电子传递速率(ETR)和光化学猝灭系数(qP),减小非光化学猝灭系数(NPQ),以达到提高光能利用率的目标。结论]该研究为在盐渍化土壤栽培水稻提供科学的栽培措施。
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| 关 键 词： | 水稻 锌营养 盐胁迫 细胞膜 叶绿素荧光 |
| 文章编号： | 0517-6611（2008）01-00119-03 |
| 收稿时间： | 2007-08-29 |
| 修稿时间： | 2007年8月29日 |
Effects of Zinc Nutrition on Leaves Cell Membrane and Chlorophyll Fluorescence Characteristics of Rice Seedling under Salt Stress |
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| XU Jian-ming.Effects of Zinc Nutrition on Leaves Cell Membrane and Chlorophyll Fluorescence Characteristics of Rice Seedling under Salt Stress[J].Journal of Anhui Agricultural Sciences,2008,36(1):119-121. |
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| Authors: | XU Jian-ming |
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| Abstract: | Objective] The research aimed to discuss the effects of zinc nutrition on the activity of related cytoprotection enzyme,membrane-lipid peroxidation situations and chlorophyll fluorescence characteristics of rice seedlings under salt stress.Method] In sand culture test,the effects of zinc nutrition on the leaf cell membrane and chlorophyll fluorescence characteristics of rice seedlings under salt stress were studied.Result] Zinc nutrition could significantly increase the activities of SOD and POD in the leaves,reduce the exosmosis rate of intracellular electrolyte circuits and MDA content,and protect the stability of cell membrane,especially in the treatments with middle and low concentrations(0.5 and 1.0 mg/L)of zinc nutrition.Meanwhile,zinc nutrition could also alleviate the damage degree of leaf photosynthetic structure caused by salt stress,increase the maximum photochemical efficiency of PSⅡ(Fv/Fm),effective photochemical efficiency of PSⅡ(Fv′/Fm′) and electron transport quantum efficiency of PSⅡ(PSⅡ),and increase electron transport rate(ETR)and photochemical quenching coefficient(qP),and minish non-photochemical quenching coefficient(NPQ)so as to achieve the object of increasing light energy utilization efficiency.Conclusion] This research provided scientific cultivation measures for planting rice in saline soil. |
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| Keywords: | Rice Zinc nutrition Salt stress Cell membrane Chlorophyll fluorescence |
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