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An improved theory for calculating leaf gas exchange more precisely accounting for small fluxes
gas exchange leaf von Caemmerer and Farquhar (vCF)
2023/12/8
The widely used theory for gas exchange proposed by von Caemmerer and Farquhar (vCF) integrates molar fluxes, mole fraction gradients and ternary effects but does not account for cuticular fluxes, for...
Effect of vapor pressure deficit on gas exchange in wild-type and abscisic acid-insensitive plants
ABA-signaling Drought stress HOS15 OST1 ABI1/2 Protein degradation and stability
2024/2/28
Stomata control the gas exchange of terrestrial plant leaves, and are therefore essential to plant growth and survival. We investigated gas exchange responses to vapor pressure deficit (VPD) in two gr...
Intact leaf gas exchange provides a robust method for measuring the kinetics of stomatal conductance responses to abscisic acid and other small molecules in Arabidopsis and grasses
Stomatalconductance Kinetics Guardcellphysiology Aquaporin
2024/3/5
Guard cells perceive external and internal stimuli and regulate stomatal conductance in plants. With the use of gas exchange analyzers, time-resolved stomatal conductance responses to light intensity,...
Biomass allocation, leaf gas exchange and nutrient uptake of hazelnut seedlings in response to Trichoderma harzianum and Glomus intraradices inoculation
Corylus avellana fungi growth rate leaf nutrients nursery stomatal conductance
2017/6/26
Mycorrhizal fungi form mutualistic symbioses with the roots of 80% of plants which increase growth and nutrient uptake for the host plants. This research was conducted to determine the effect of indiv...
Gas exchange responses of two poplar clones (Populus euramericana (Dode) Guinier 561/41 and Populus nigra Linnaeus 63/135) to lead toxicity
physiological parameters phytoremediation soil contamination heavy metals stress
2016/10/14
To evaluate the lead tolerance of Populus euramericana (Dode) Guinier 561/41 and Populus nigra Linnaeus 63/135 clones in relation to photosynthetic efficiency, we measured physiological parameters of ...
Investigations of Air-Sea Gas Exchange in the CoOP Coastal Air-Sea Chemical Exchange Project
Air-Sea Gas Exchange CoOP Coastal Air-Sea Chemical Exchange
2015/7/22
The exchange of CO2 and other gases across the ocean-air interface is an extremely important component in global climate dynamics, photosynthesis and respiration, and the absorption of anthropogenical...
Acoustic Analysis of Breath Sounds as a Surrogate for Gas Exchange Thresholds
Acoustic Analysis Breath Sounds Gas Exchange Thresholds
2015/5/21
Respiratory gas exchange threshold measurements are a reference standard for measuring sustainable exercise capacity (McLellan and Skinner, 1981). A recent consensus report suggested that ‘threshold b...
Lack of Agreement Between Gas Exchange Variables Measured by Two Metabolic Systems
Metabolic system oxygen consumption minute ventilation carbon dioxide production Bruce protocol
2015/4/7
The purpose of this study was to assess the agreement and consistency between gas exchange variables measured by two online metabolic systems during an incremental exercise test. After obtaining local...
RESPIRATORY GAS EXCHANGE INDICES FOR ESTIMATING THE ANAEROBIC THRESHOLD
Anaerobic threshold exercise tes
2015/3/16
Several methods are used for estimating the anaerobic threshold (AT) during exercise. The aim of the
present study was to compare AT values based on blood lactate measurements with those obtained fr...
Dynamic Interactions of Gas Exchange, Body Mass, and Progressive Exercise in Children
HEART RATE CARDIOPULMONARY EXERCISE TESTING OXYGEN UPTAKE VENTILATION CARBON DIOXIDE OUTPUT DXA
2017/5/19
Cardiopulmonary exercise testing (CPET) is increasingly used as a biomarker of fitness in children. Maximal or peak values remain the most common variables obtained in CPET, but these physiologically ...
Pulmonary Mechanics and Gas Exchange during Exercise in Kenyan Distance Runners
EXERCISE HYPERPNEA EXPIRATORY FLOW LIMITATION WORK OF BREATHING HYPOXEMIACANADA
2017/5/19
The purpose of this study was to determine arterial blood gases, the mechanical limits for generating expiratory flow and the work performed by the respiratory muscles during treadmill exercise in Ken...
Evolution of Gas Exchange Abnormalities in Patients with Liver Cirrhosis Candidate for Liver Transplantation
Blood gas Cirrhosis Hypoxemia
2015/9/25
Background: Hypoxemia is common in patients with cirrhosis but the natural history of this syndrome is unknown. This study was conducted to evaluate the natural history of arterial oxygenation in pati...
The relationship between near-surface turbulence and gas transfer velocity in freshwater systems and its implications for floating chamber measurements of gas exchange
The relationship near-surface turbulence gas transfer velocity freshwater systems floating chamber measurements of gas exchange
2014/4/17
We performed a series of gas exchange measurements in 12 diverse aquatic systems to develop the direct relationship between near-surface turbulence and gas transfer velocity. The relationship was log-...
Parameterization of a coupled CO2 and H2O gas exchange model at the leaf scale of Populus euphratica
Parameterization coupled CO2 and H2O gas exchange model leaf scale Populus euphratica
2010/4/7
The following two models were combined to simultaneously predict CO2 and H2O gas exchange at the leaf scale of Populus euphratica: a Farquhar et al. type biochemical sub-model of photosynthesis (Farqu...
Needle age-related and seasonal photosynthetic capacity variation is negligible for modelling yearly gas exchange of a sparse temperate Scots pine forest
Needle age-related and seasonal photosynthetic capacity variation a sparse temperate Scots pine forest
2010/1/21
In this study, we quantified the predictive accuracy loss involved with omitting photosynthetic capacity variation for a Scots pine (Pinus sylvestris L.) stand in Flanders, Belgium. Over the course of...