A5114020334- Photosynthetic Processes and Mechanisms
- Light effects on plants
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Remote Sensing in Agriculture
- Isotope Analysis in Ecology
- Spectroscopy and Quantum Chemical Studies
- Plant Water Relations and Carbon Dynamics
- Greenhouse Technology and Climate Control
- Atmospheric and Environmental Gas Dynamics
- Water Quality Monitoring and Analysis
- Plant responses to elevated CO2
Wageningen University & Research
2022-2024
Abstract. Carbonyl sulfide (COS) has been proposed as a proxy for gross primary production (GPP), it is taken up by plants through comparable pathway CO2. COS diffuses into the leaf and undergoes an essentially one-way reaction in mesophyll cells, catalyzed enzyme carbonic anhydrase (CA), does not exit again. In order to use GPP, however, mechanisms of uptake its coupling CO2 need be well understood. Characterizing isotopic discrimination during plant can provide useful information on...
Application of light-emitting diode technology has opened opportunities to optimize light spectrum for crop production greenhouses and vertical farms. In addition photosynthetically active radiation, far-red (FR) shown potential enhancing leaf photosynthesis. However, additional FR also alters the red ratio (R:FR) induces a shade-avoidance response (SAR) that changes nitrogen, thickness mass. These acclimations can potentially alter resistance CO2 diffusion, which limit Tomato plants were...
Abstract Maximal sunlight intensity varies diurnally due to the earth's rotation. Whether this slow diurnal pattern influences photoprotective capacity of plants throughout day is unknown. We investigated variation in NPQ, along with NPQ capacity, induction, and relaxation kinetics after transitions high light, tomato grown under parabolic (DP) or constant (DC) light regimes. DP peaked at midday (470 μmol m ‐2 s ‐1) while DC stayed 300 ‐1 a similar 12‐hour photoperiod daily integral. NPQs...
ABSTRACT Leaf photosynthesis models are used extensively in research and embedded many larger scale models. Typical simplify light intensity as the integrated over 400–700 nm waveband (photosynthetic active radiation, PAR). However, far‐red (700–750 nm, FR) also drives when supplied addition to within PAR spectrum. Currently, it is unknown how much contributes carbon assimilation under various spectral conditions. We developed a combined experimental computational method quantify FR...
Leaf photosynthesis models are used extensively in research and embedded many larger scale models. Typical simplify light intensity as the integrated over 400 to 700 nm waveband (Photosynthetic Active Radiation; PAR). However, far-red (700-750 nm, FR) also drives when supplied addition within PAR spectrum. Currently, it is unknown how much contributes carbon assimilation under various spectral conditions. We developed a combined experimental computational method quantify FR stimulation....
Maximal sunlight slowly varies over a day due to earth’s rotation. However, it is unknown whether this predictable daily light pattern influences the short-term regulation of non-photochemical quenching (NPQ) responses across day. Diurnal variation in NPQ at growth intensity, capacity and kinetics during after 30-minute high period, were measured tomato plants grown diurnal constant (DC) or parabolic (DP) intensity. We also leaf gas exchange violaxanthin de-epoxidation state (DES) period...
<p>Carbonyl sulfide (COS) is the most abundant sulfur-containing trace gas in atmosphere, with an average mixing ratio of 500 parts per trillion (ppt). It has a relatively long lifetime about 2 years, which permits it to travel into stratosphere. There, likely plays important role formation stratospheric sulfur aerosols (SSA), have cooling effect on Earth’s climate. Furthermore, during photosynthetic uptake by plants, COS follows essentially same pathway as...