Elias Kaiser

ORCID: 0000-0002-9081-9604
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About
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Research Areas
  • Greenhouse Technology and Climate Control
  • Light effects on plants
  • Photosynthetic Processes and Mechanisms
  • Plant Water Relations and Carbon Dynamics
  • Plant responses to elevated CO2
  • Plant Stress Responses and Tolerance
  • Leaf Properties and Growth Measurement
  • Plant Molecular Biology Research
  • Smart Agriculture and AI
  • Plant responses to water stress
  • Plant and animal studies
  • Innovations in Aquaponics and Hydroponics Systems
  • Plant Physiology and Cultivation Studies
  • Plant nutrient uptake and metabolism
  • Spectroscopy and Chemometric Analyses
  • Cannabis and Cannabinoid Research
  • Plant Parasitism and Resistance
  • Photoreceptor and optogenetics research
  • Flowering Plant Growth and Cultivation
  • Plant and Biological Electrophysiology Studies
  • Bioeconomy and Sustainability Development
  • Atmospheric chemistry and aerosols
  • GABA and Rice Research
  • Biotechnology and Related Fields
  • Agriculture Sustainability and Environmental Impact

Wageningen University & Research
2016-2025

Graduate School Experimental Plant Sciences
2017-2024

Max Planck Institute of Molecular Plant Physiology
2018-2022

Laurentian University
2001

Vertical farming is considered to be a key enabler for transforming agrifood systems, especially in or nearby urbanized areas. systems (VFS) are advanced indoor cropping that allow highly intensified and standardized plant production. The close control of environmental parameters makes crop production stable repeatable, ensuring year-round uniform product quality quantity irrespective location. However, due continuous changes physiology development, as well frequent electricity prices, the...

10.3389/fsci.2024.1411259 article EN cc-by Frontiers in Science 2024-09-24

Greenhouse crop production in northern countries often relies heavily on supplemental lighting for year-round yield and product quality. Among the different spectra used lighting, red is considered most efficient, but plants do not develop normally when grown solely under monochromatic light ("red syndrome"). Addition of blue has been shown to aid normal development, typical greenhouse include a mixture light. However, it unclear whether sunlight, as part available greenhouse, may be...

10.3389/fpls.2018.02002 article EN cc-by Frontiers in Plant Science 2019-01-13

Abstract A better understanding of the metabolic and diffusional limitations photosynthesis in fluctuating irradiance can help identify targets for improving crop yields. We used different genotypes Arabidopsis thaliana to characterise importance Rubisco activase (Rca), stomatal conductance (g s ), non-photochemical quenching chlorophyll fluorescence (NPQ) sucrose phosphate synthase (SPS) on irradiance. Leaf gas exchange were measured leaves exposed stepwise increases decreases rwt43 , which...

10.1038/srep31252 article EN cc-by Scientific Reports 2016-08-09

Plants depend on photosynthesis for growth. In nature, factors such as temperature, humidity, CO2 partial pressure, and spectrum intensity of irradiance often fluctuate. Whereas is most influential has been studied in detail, understanding interactions with other lacking.We tested how photosynthetic induction after dark-light transitions was affected by pressure (20, 40, 80 Pa), leaf temperatures (15·5, 22·8, 30·5 °C), leaf-to-air vapour deficits (VPDleaf-air; 0·5, 0·8, 1·6, 2·3 kPa) blue...

10.1093/aob/mcw226 article EN Annals of Botany 2016-10-18

Abstract Background Quantifying plant transpiration via thermal imaging is desirable for applications in agriculture, breeding, and science. However, under natural non-steady state conditions currently limited by the difficulty of quantifying properties leaves, especially specific heat capacity (C p ). Existing literature offers only rough estimates C lacks simple accurate methods to determine it. Results We developed a non-invasive method quantify k (the product leaf thickness (lt),...

10.1186/s13007-025-01326-3 article EN cc-by Plant Methods 2025-01-24

ABSTRACT Stomata regulate plant gas exchange under changing environments, but observations of single stomata dynamics in planta are sparse. We developed a compact microscope system that can measure the kinetics tens simultaneously, with sub‐minute time resolution. Darkfield imaging green light was used to create 3D stacks from which 2D surface projections were constructed resolve stomatal apertures. Stomatal Chrysanthemum morifolium (Chrysanthemum) and Zea mays (Maize) intensity categorized,...

10.1111/pce.15436 article EN cc-by-nc-nd Plant Cell & Environment 2025-03-02

The addition of far-red (FR, 700–800 nm) radiation to standard growth light triggers a set photomorphogenic responses collectively termed shade avoidance syndrome. Recent research showed that additional FR increased fruit yield in greenhouse tomato production. However, the mechanism behind this increase is not clear; nor it known whether there trade-off between and defense against plant diseases under FR. aims study were 1) quantify effect on growth, 2) explain based underlying components 3)...

10.1016/j.envexpbot.2019.103889 article EN cc-by-nc-nd Environmental and Experimental Botany 2019-09-20

In nature, soil salinity and fluctuating light (FL) often occur concomitantly. However, it is unknown whether salt stress interacts with FL on leaf photosynthesis, architecture, biochemistry, pigmentation, mineral concentrations, as well whole-plant biomass. To elucidate this, tomato (Solanum lycopersicum) seedlings were grown under constant (C, 200 μmol m-2 s-1 ) or (5-650 ), in combination no (0 mM NaCl) moderate (80 salinity, for 14 days, at identical photoperiods daily integrals. had...

10.1111/pce.13810 article EN Plant Cell & Environment 2020-05-28

Abstract NaCl stress affects stomatal behavior and photosynthesis by a combination of osmotic ionic components, but it is unknown how these components affect photosynthetic dynamics. Tomato (Solanum lycopersicum) plants were grown in reference nutrient solution [control; electrical conductivity (EC)=2.3 dS m–1], containing additional macronutrients (osmotic effect; EC=12.6 m–1), or with 100 mM effects; EC=12.8 m–1). Steady-state dynamic photosynthesis, leaf biochemistry, characterized...

10.1093/jxb/erac078 article EN Journal of Experimental Botany 2022-02-25

The cultivation of medical cannabis ( Cannabis sativa L.) is expanding in controlled environments, driven by evolving governmental regulations for healthcare supply. Increasing inflorescence weight and plant specialized metabolite (PSM) concentrations critical, alongside maintaining product consistency. Medical grown under different spectra photosynthetic photon flux densities (PPFD), the interaction between spectrum PPFD on PSM attracts attention both industrialists scientists. Plants were...

10.3389/fpls.2024.1393803 article EN cc-by Frontiers in Plant Science 2024-06-18

Abstract A dynamic model of leaf CO 2 assimilation was developed as an extension the canonical steady‐state model, by adding effects energy‐dependent non‐photochemical quenching (qE), chloroplast movement, photoinhibition, regulation enzyme activity in Calvin cycle, metabolite concentrations, and diffusion. The calibrated tested successfully using published measurements gas exchange chlorophyll fluorescence on Arabidopsis thaliana ecotype Col‐0 several photosynthetic mutants transformants...

10.1111/pce.13119 article EN cc-by Plant Cell & Environment 2017-12-16

The composition of the thylakoid proton motive force (pmf) is regulated by ion transport. Passive channels in membrane dissipate potential (Ɗψ) component to allow for a higher fraction pmf stored as concentration gradient (ƊpH). K+/H+ antiport across via K+ EXCHANGE ANTIPORTER3 (KEA3) instead reduces ƊpH pmf. Thereby, KEA3 decreases nonphotochemical quenching (NPQ), thus allowing light use efficiency, which particularly important during transitions from high low light. Here, we show that...

10.1104/pp.19.01561 article EN cc-by PLANT PHYSIOLOGY 2020-02-10

Under natural conditions, irradiance frequently fluctuates, causing net photosynthesis rate ( A ) to respond slowly and reducing the yields. We quantified genotypic variation of photosynthetic induction in 19 genotypes among following six horticultural crops: basil, chrysanthemum, cucumber, lettuce, tomato, rose. Kinetics stomatal opening were measured by exposing shade-adapted leaves (50 μmol m –2 s –1 a high (1000 until reached steady state. Rubisco activation was estimated kinetics...

10.3389/fpls.2022.860229 article EN cc-by Frontiers in Plant Science 2022-04-27
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