| 华北景天叶片有机渗透调节物质对水分胁迫的响应 |
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| 引用本文： | 那冬晨,任彩琴,柴婷婷,张婧,王文斗.华北景天叶片有机渗透调节物质对水分胁迫的响应[J].北方园艺,2011(17):96-98. |
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| 作者姓名： | 那冬晨 任彩琴 柴婷婷 张婧 王文斗 |
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| 作者单位： | 山西师范大学生命科学学院,山西临汾,041004;山西师范大学生命科学学院,山西临汾,041004;山西师范大学生命科学学院,山西临汾,041004;山西师范大学生命科学学院,山西临汾,041004;山西师范大学生命科学学院,山西临汾,041004 |
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| 基金项目： | 山西师范大学自然科学基金资助项目(YZ08017) |
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| 摘 要： | 试验以华北景天为试材,采用人工控水方法,研究了不同水分胁迫强度对华北景天叶片有机渗透调节物质的影响.结果表明:在水分胁迫下,华北景天叶片中游离脯氨酸和可溶性糖含量变化不明显,可溶性蛋白含量变化显著.华北景天可通过可溶性蛋白的渗透调节作用,降低细胞的渗透势,维持细胞膨压,从而保证干旱条件下细胞的正常生长与代谢.所以,可溶性蛋白是水分胁迫条件下华北景天叶片细胞内重要的渗透调节剂.
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| 关 键 词： | 华北景天 水分胁迫 有机渗透调节物质 |
The Response of Organic Osmoregulatory Substance of Sedum tatarinowii Leaves to Water Stress |
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| NA Dong-chen
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REN Cai-qin
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CHAI Ting-ting
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ZHANG Jing
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WANG Wen-dou.The Response of Organic Osmoregulatory Substance of Sedum tatarinowii Leaves to Water Stress[J].Northern Horticulture,2011(17):96-98. |
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| Authors: | NA Dong-chen REN Cai-qin CHAI Ting-ting ZHANG Jing WANG Wen-dou |
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| Institution: | NA Dong-chen,REN Cai-qin,CHAI Ting-ting,ZHANG Jing,WANG Wen-dou(College of Life Sciences,Shanxi Normal University,Linfen,Shanxi 041004) |
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| Abstract: | The response of organic osmoregulatory substance of Sedum tatarinowii leaves to water stress was studied under manual controlling soil water environments.The results showed that the contents of free proline and soluble sugar appeared unremarkable changed,but the content of soluble protein appeared remarkable increasing trend under water stress.The cell osmotic potential was reduced and the cell turgor was maintained through the osmoregulatory of soluble protein in the leaves of Sedum tatarinowii.Thus normal... |
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| Keywords: | Sedum tatarinowii water stress organic osmoregulatory substance |
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