Do 2H and 18O in leaf water reflect environmental drivers differently?

LA Cernusak, A Barbeta, RT Bush… - New …, 2022 - Wiley Online Library
We compiled hydrogen and oxygen stable isotope compositions (δ2H and δ18O) of leaf
water from multiple biomes to examine variations with environmental drivers. Leaf water δ2H …

Toward a common methodological framework for the sampling, extraction, and isotopic analysis of water in the Critical Zone to study vegetation water use

N Ceperley, TE Gimeno, SR Jacobs… - Wiley …, 2024 - Wiley Online Library
The analysis of the stable isotopic composition of hydrogen and oxygen in water samples
from soils and plants can help to identify sources of vegetation water uptake. This approach …

Covariation between oxygen and hydrogen stable isotopes declines along the path from xylem water to wood cellulose across an aridity gradient

M Holloway‐Phillips, LA Cernusak, DB Nelson… - New …, 2023 - Wiley Online Library
Oxygen and hydrogen isotopes of cellulose in plant biology are commonly used to infer
environmental conditions, often from time series measurements of tree rings. However, the …

18O enrichment of sucrose and photosynthetic and nonphotosynthetic leaf water in a C3 grass—atmospheric drivers and physiological relations

JC Baca Cabrera, RT Hirl, J Zhu… - Plant, Cell & …, 2023 - Wiley Online Library
Abstract The 18O enrichment (Δ18O) of leaf water affects the Δ18O of photosynthetic
products such as sucrose, generating an isotopic archive of plant function and past climate …

Variability in pattern and hydrogen isotope composition (δ2H) of long-chain n-alkanes of surface soils and its relations to climate and vegetation characteristics: A …

C Guo, LI Xiaozhen, T Xiaolu, QIN Wenyi, LIU Haitao… - Pedosphere, 2022 - Elsevier
The average chain length (ACL), carbon preference index (CPI), and hydrogen isotope
composition (δ 2 H) of long-chain n-alkanes in sediments have been used to retrieve …

Subdecadal phytolith and charcoal records from Lake Malawi, East Africa imply minimal effects on human evolution from the∼ 74 ka Toba supereruption

CL Yost, LJ Jackson, JR Stone, AS Cohen - Journal of Human Evolution, 2018 - Elsevier
The temporal proximity of the∼ 74 ka Toba supereruption to a putative 100–50 ka human
population bottleneck is the basis for the volcanic winter/weak Garden of Eden hypothesis …

Temperature‐sensitive biochemical 18O‐fractionation and humidity‐dependent attenuation factor are needed to predict δ18O of cellulose from leaf water in a …

RT Hirl, J Ogée, U Ostler, R Schäufele… - New …, 2021 - Wiley Online Library
We explore here our mechanistic understanding of the environmental and physiological
processes that determine the oxygen isotope composition of leaf cellulose (δ18Ocellulose) …

The ecohydrology of a grassland ecosystem – predictions and observations

RT Hirl, H Schnyder, U Ostler… - Hydrology and Earth …, 2019 - hess.copernicus.org
The oxygen isotope composition (δ 18 O) of leaf water (δ 18 O leaf) is an important
determinant of environmental and physiological information found in biological archives, but …

How dry was the Younger Dryas? Evidence from a coupled δ2H–δ18O biomarker paleohygrometer applied to the Gemündener Maar sediments, Western Eifel …

J Hepp, L Wüthrich, T Bromm, M Bliedtner… - Climate of the …, 2019 - cp.copernicus.org
Causes of the Late Glacial to Early Holocene transition phase and particularly the Younger
Dryas period, ie the major last cold spell in central Europe during the Late Glacial, are …

Using plant physiological stable oxygen isotope models to counter food fraud

F Cueni, DB Nelson, M Boner, A Kahmen - Scientific reports, 2021 - nature.com
Fraudulent food products, especially regarding false claims of geographic origin, impose
economic damages of 30– 40 billion per year. Stable isotope methods, using oxygen …