| 供硫水平对花生叶片硫素含量与形态的影响 |
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| 引用本文： | 周可金,雷红灵,肖文娜,章力干.供硫水平对花生叶片硫素含量与形态的影响[J].植物营养与肥料学报,2008,14(6):1154-1159. |
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| 作者姓名： | 周可金 雷红灵 肖文娜 章力干 |
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| 作者单位： | 1.安徽农业大学农学院,安徽合肥 230036; |
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| 摘 要： | 采用盆栽方法研究了供硫水平对花生不同叶龄叶片的硫酸盐、谷胱甘肽和蛋白态硫含量及其形态的影响。结果表明，叶片谷胱甘肽含量随叶龄增大而减少，硫酸盐含量却相反。当硫素供应充足时，幼叶谷胱甘肽含量占总硫 4.6%，蛋白态硫含量占 91%，其余以硫酸盐形式存在；中龄叶及老叶的硫酸盐含量占总硫的60%~80%，而谷胱甘肽含量不到1%。当硫素供应不足时，幼叶和中龄叶含硫化合物总量减少，尤其是硫酸盐。因此，在缺硫时，谷胱甘肽不是植株硫的主要来源，且低氮加重缺硫症状发生。不同叶龄叶片对缺硫反应不同，幼叶对缺硫反应更为敏感。
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| 关 键 词： | 硫素供应 硫形态 谷胱甘肽 叶片 花生 |
| 收稿时间： | 2007-10-10 |
Effects of sulfur supply on sulfur content and conformation within peanut leaves |
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| ZHOU Ke-jin LEI Hong-ling XIAO Wen-na ZHANG Li-gan.Effects of sulfur supply on sulfur content and conformation within peanut leaves[J].Plant Nutrition and Fertilizer Science,2008,14(6):1154-1159. |
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| Authors: | ZHOU Ke-jin LEI Hong-ling XIAO Wen-na ZHANG Li-gan |
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| Affiliation: | 1.College of Agronomy,Anhui Agricultural University,Hefei 230036,China; |
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| Abstract: | Greenhouse experiment was conducted to study content and conformation of sulfate(S),glutathione,and insol- uble S fraction within different aged peanut leaves.The content of glutathione decreased with the leaf aging increase, whereas an opposite trend was observed for SO_4~(2-)content.The concentration of insoluble S was similar for all leaves. With the sufficient S supply,SO_4~(2-),glutathione,and insoluble fraction accounted for 4.4%,4.6% and 91% of total S in the young leave,respectively.In the middle and old leaves,60% to 80% of total S accumulated as SO_4~(-2),and glu- tathione accounted for less than 1%.The concentrations of all S-containing compounds,particularly SO_4~(-2),decreased in the young and middle leaves without S supply.Glutathione was not a major S source for peanut during S deficiency.Low N supply aggravated the symptoms S deficiency.The different aged leaves had no-unique responses to S deficiency. Young leaves are more sensitive to S deficient than middle and old leaves. |
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| Keywords: | sulfur supply sulfur conformation glutathione leaf peanut |
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