| Si对NaCl胁迫下枣叶栅栏细胞超微结构的影响 |
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| 引用本文： | 徐呈祥,徐锡增,甘习华.Si对NaCl胁迫下枣叶栅栏细胞超微结构的影响[J].中国南方果树,2011,40(1). |
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| 作者姓名： | 徐呈祥 徐锡增 甘习华 |
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| 作者单位： | 1. 南京林业大学森林资源与环境学院,南京,210037;肇庆学院生命科学学院
2. 南京林业大学森林资源与环境学院,南京,210037 |
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| 基金项目： | 江苏省博士后科研计划(0701039B); 中国博士后科学基金(20070411057); 国家自然科学基金(30471368)资助 |
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| 摘 要： | 以酸枣Ziziphus spinosus(Bunge)Hu.砧2年生金丝小枣Z.jujuba‘Jinsixiaozao’盆栽苗为试材,研究了NaCl胁迫对枣叶栅栏细胞超微结构的影响及增施可溶性硅(Si,0.040%)的效应,旨在进一步揭示枣树耐盐性与Si营养的关系。结果表明:0.30%NaCl胁迫165天后枣叶栅栏细胞超微结构产生了较明显伤害,0.50%NaCl胁迫165天则产生严重伤害;土壤施可溶性硅明显减轻前述盐胁迫对枣叶栅栏细胞超微结构的伤害,突出表现是叶绿体精细结构保持较好,淀粉粒、被膜泡囊等内含物增多。说明,提高土壤中生物有效硅水平,对盐胁迫特别是重度盐胁迫下枣树叶片栅栏细胞结构和功能具显著保护作用。
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| 关 键 词： | 枣 盐胁迫 硅 栅栏细胞 超微结构 |
Influence of Si on Leaf Palisade Cell Ultrastructure of Ziziphus jujuba Mill. under Salt Stress |
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| XU Cheng-xiang,XU Xi-zeng,GAN Xi-hua.Influence of Si on Leaf Palisade Cell Ultrastructure of Ziziphus jujuba Mill. under Salt Stress[J].South China Fruits,2011,40(1). |
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| Authors: | XU Cheng-xiang XU Xi-zeng GAN Xi-hua |
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| Institution: | XU Cheng-xiang1,2,XU Xi-zeng1,GAN Xi-hua1(1 College of Forest Resources and Environment,Nanjing Forestry University,Nanjing,Jiangsu 210037,2 College of Life Sciences,Zhaoqing University) |
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| Abstract: | The influence of salt stress on ultrastructure of palisade cells in the leaves of Ziziphus jujuba Mill.cv.Jinsixiaozao and the effect of silicon application were studied with two-year-old pot-cultured plants.Results showed that the ultrastructure of palisade cells in leaves was obviously injured under salt stress of 0.30% NaCl for 165 days and seriously injured under salt stress of 0.50% NaCl for 165 days.Soil application of soluble silicon(0.040%) evidently alleviated the stress symptoms of palisade cell u... |
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| Keywords: | Ziziphus jujuba salt stress silicon palisade cell ultrastructure |
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