Fungal hyphae associated with tree roots extending into the surrounding substrate are suspected to have to contaminated buried plant material with recent carbon in two examples and to have resulted in erroneously young radiocarbon ages. This problem might be overcome by choosing sampling sites far from trees or by analyzing the lignin component of samples, although the latter is presently difficult.

中文翻译：

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真菌菌丝对植物样品的放射性碳分析

在两个例子中，怀疑与延伸到周围基质的树根相关的真菌菌丝必须用最近的碳污染埋藏的植物材料，并导致错误的年轻放射性碳年龄。这个问题可以通过选择远离树木的采样点或通过分析样品的木质素成分来克服，尽管后者目前很困难。