| 硒对常夏石竹耐盐突变体生理指标的影响 |
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| 引用本文： | 王玉,王长泉.硒对常夏石竹耐盐突变体生理指标的影响[J].河北农业科学,2004,8(4):56-59. |
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| 作者姓名： | 王玉 王长泉 |
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| 作者单位： | 山东省淄博市人民公园,山东,淄博,255000;山东理工大学基建处,山东,淄博,255049 |
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| 摘 要： | 研究分析了不同施硒量对常夏石竹耐盐突变体生理指标的影响。结果表明 :在培养基中加施适量外源硒 ,能显著提高常夏石竹 (Dianthusplumarius)耐盐突变体生物量、POD活性以及K /Na 、K 、Na 绝对含量和叶绿素及游离脯氨酸含量 ;质膜透性、可溶性糖含量降低。施硒使常夏石竹耐盐突变体叶绿体体积、形状及排列方式发生明显改变 ;叶绿体被膜、线粒体结构有所改善 ;细胞碎片减少 ;叶绿体与线粒体更加靠近。
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| 关 键 词： | 常夏石竹 硒 耐盐突变体 生理指标 超微结构 |
| 文章编号： | 1008-1631(2004)04-0056-04 |
| 修稿时间： | 2004年9月26日 |
Effects of Selenium on the Physiological Indexes and Ultrastructure of Salt-tolerant Dianthus Plumarius Variants |
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| WANG Yu,WANG Chang-quan.Effects of Selenium on the Physiological Indexes and Ultrastructure of Salt-tolerant Dianthus Plumarius Variants[J].Journal of Hebei Agricultural Sciences,2004,8(4):56-59. |
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| Authors: | WANG Yu WANG Chang-quan |
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| Institution: | WANG Yu1,WANG Chang-quan2 |
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| Abstract: | Adding selenium in MS medium could significantly enhance the biomass,proline,POD activity,ratio of K and Na ,absolute content of K and Na ,white the cell memberane permeability and soluble sugar deceased in salt-tolerant Dianthus plumarius variants. The varaints showed the same characteristics as common halophytes: the cell memberane system was indistinct,thylakoids swelled and the number of grana lamellae reduced;the endoplasmic retichla were around the vacuoles inside which there were some decomposed cell pieces. After adding selenium the voloume,shape,arranging-pattern of chloroplasts were changed in the variants; the structure of memberane system was improved,chloroplasts were closer to the mitochondria than that without adding selenium,and the quantity of pieces in cells decreased. |
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| Keywords: | Dianthus plumarius Selenium Salt-tolerant variant Physiological index Ultrastructure |
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