五味子稳定碳同位素分布特征及其与环境因子的关系

被引：25

作者：

董星彩

王颜红

李国琛

李波

王世成

机构：

[1] 中国科学院沈阳应用生态研究所

来源：

生态学杂志 | 2010年 / 29卷 / 12期

关键词：

器官; 时间变化; 纬度; 大气δ13C;

D O I：

10.13292/j.1000-4890.2010.0378

中图分类号：

S567.19 [];

学科分类号：

摘要：

利用稳定碳同位素技术分析了辽宁省五味子果实、果梗、叶片稳定碳同位素组成(δ13C)随生长时间的变化规律及果实δ13C值与环境因子之间的关系。结果表明:植物不同器官δ13C值差异显著(P<0.01),表现为果实(-26.356‰)>果梗(-26.620‰)>叶片(-28.327‰),说明光合产物由光合作用器官到非光合作用器官存在明显的碳同位素分馏,非光合作用器官之间也存在差异。随着时间变化,五味子果实δ13C值相对稳定,果梗δ13C值降低,叶片δ13C值显著降低(P<0.001)。五味子果实δ13C值随纬度的升高略有升高(R=0.101),与大气δ13C值呈弱负相关(R=-0.204)。果实δ13C值随纬度的变化为利用同位素技术进行五味子产地鉴别提供了理论依据。

引用

页码：2353 / 2357

页数：5

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