The oxygen isotopic composition (here shown as the δ ¹⁸O value) of soluble sugars in leaves and phloem tissue holds valuable information about plant functions in response to climatic changes. However, δ ¹⁸O analysis of sugars is prone to error, and thoroughly tested methods are lacking.

中文翻译：

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改进用于氧同位素分析的叶糖和韧皮部糖的提取和纯化。

叶子和韧皮部组织中可溶性糖的氧同位素组成（此处显示为δ ¹⁸ O 值）包含有关植物功能响应气候变化的宝贵信息。然而，糖的δ ¹⁸ O 分析容易出错，并且缺乏经过彻底测试的方法。