The oxidative pentose phosphate pathway in photosynthesis: a tale of two shunts

Y Xu, SC Schmiege, TD Sharkey - New Phytologist, 2024 - Wiley Online Library
CO2 release in the light (RL) and its presumed source, oxidative pentose phosphate
pathways, were found to be insensitive to CO2 concentration. The oxidative pentose …

Reimport of carbon from cytosolic and vacuolar sugar pools into the Calvin–Benson cycle explains photosynthesis labeling anomalies

Y Xu, T Wieloch, JAM Kaste… - Proceedings of the …, 2022 - National Acad Sciences
When isotopes of carbon are fed to photosynthesizing leaves, metabolites of the Calvin–
Benson cycle (CBC) are rapidly labeled initially, but then the rate of labeling slows …

Estimation of intrinsic water-use efficiency from δ13C signature of C3 leaves: Assumptions and uncertainty

WT Ma, YZ Yu, X Wang, XY Gong - Frontiers in Plant Science, 2023 - frontiersin.org
Carbon isotope composition (δ13C) has been widely used to estimate the intrinsic water-use
efficiency (iWUE) of plants in ecosystems around the world, providing an ultimate record of …

The crucial roles of mitochondria in supporting C4 photosynthesis

Y Fan, S Asao, RT Furbank, S von Caemmerer… - New …, 2022 - Wiley Online Library
C4 photosynthesis involves a series of biochemical and anatomical traits that significantly
improve plant productivity under conditions that reduce the efficiency of C3 photosynthesis …

Accounting for mesophyll conductance substantially improves 13C‐based estimates of intrinsic water‐use efficiency

WT Ma, G Tcherkez, XM Wang, R Schäufele… - New …, 2021 - Wiley Online Library
Carbon isotope discrimination (Δ) has been used widely to infer intrinsic water‐use
efficiency (iWUE) of C3 plants, a key parameter linking carbon and water fluxes. Despite the …

Short- and long-term responses of leaf day respiration to elevated atmospheric CO2

YR Sun, WT Ma, YN Xu, X Wang, L Li… - Plant …, 2023 - academic.oup.com
Evaluating leaf day respiration rate (RL), which is believed to differ from that in the dark (R
Dk), is essential for predicting global carbon cycles under climate change. Several studies …

Laisk measurements in the nonsteady state: Tests in plants exposed to warming and variable CO2 concentrations

SC Schmiege, TD Sharkey, B Walker… - Plant …, 2023 - academic.oup.com
Light respiration (RL) is an important component of plant carbon balance and a key
parameter in photosynthesis models. RL is often measured using the Laisk method, a gas …

Revisiting carbon isotope discrimination in C3 plants shows respiration rules when photosynthesis is low

FA Busch, M Holloway-Phillips, H Stuart-Williams… - Nature Plants, 2020 - nature.com
Stable isotopes are commonly used to study the diffusion of CO2 within photosynthetic plant
tissues. The standard method used to interpret the observed preference for the lighter …

Discovery of the canonical Calvin–Benson cycle

TD Sharkey - Photosynthesis Research, 2019 - Springer
It has been 65 years since the Calvin–Benson cycle was first formulated. In this paper, the
development of the concepts that are critical to the cycle is traced and the contributions of …

Temperature responses of leaf respiration in light and darkness are similar and modulated by leaf development

DM Zheng, X Wang, Q Liu, YR Sun, WT Ma… - New …, 2024 - Wiley Online Library
Our ability to predict temperature responses of leaf respiration in light and darkness (RL and
R Dk) is essential to models of global carbon dynamics. While many models rely on constant …