Leaf Transition from Heterotrophy to Autotrophy is Recorded in the Intraleaf C, H and O Isotope Patterns of Leaf Organic Matter.

CONCLUSIONS: Efforts to establish quantitative isotope-environment relationships should take into account the fact that the evaporative leaf water 18 O and 2 H enrichment signal recorded in autotrophically laid-down α-cellulose is significantly diluted by the heterotrophically formed α-cellulose. The δ2 H of field-grown mature banana leaf n-alkanes is much more sensitive than α-cellulose as a recorder of the growth environment. Quantitative isotope-environment relationship based on greenhouse-grown n-alkanes δ2 H may not be reliable.
PMID: 32441059 [PubMed - as supplied by publisher]

Source: Rapid Communications in Mass Spectrometry : RCM - May 21, 2020 Category: Chemistry Authors: Zhu Z, Yin X, Song X, Wang B, Ma R, Zhao Y, Rani A, Wang Y, Yan Q, Su J, Gessler A, Zhou Y Tags: Rapid Commun Mass Spectrom Source Type: research