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An incorrect wetness-based correction method for deuterium offset [Biological Sciences]
Proceedings of the National Academy of Sciences of the United States of America ( IF 11.1 ) Pub Date : 2021-04-13 , DOI: 10.1073/pnas.2026641118
Ying Zhao 1
Affiliation  

Isotope-based plant–soil water tracing assumes that the isotope signal in the plant xylem does not fractionate (1). However, this assumption has been questioned increasingly in recent years with numerous reports for different plants of deuterium depletion in xylem water, particularly for halophyte and xerophytes (2). Chen et al. (3) go beyond what others have done to date and show how organics linked to the water cryogenic extraction from stem material result in a dynamic exchange between organically bound deuterium and liquid water. They further establish a correction method to challenge previous conclusions of …

中文翻译:

一种不正确的基于湿度的氘偏移校正方法 [生物科学]

基于同位素的植物土壤水分示踪假设植物木质部中的同位素信号不会分离 ( 1 )。然而,近年来,随着关于木质部水中不同植物,特别是盐生植物和旱生植物的氘消耗的大量报道,这一假设受到越来越多的质疑 ( 2 )。陈等人。( 3 ) 超越其他人迄今为止所做的,并展示了与从茎材料中进行水低温提取相关的有机物如何导致有机结合的氘和液态水之间的动态交换。他们进一步建立了一种修正方法来挑战……的先前结论。
更新日期:2021-04-06
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