A5072966368- Light effects on plants
- Greenhouse Technology and Climate Control
- Plant Molecular Biology Research
- Photosynthetic Processes and Mechanisms
- Water Quality Monitoring and Analysis
- Modular Robots and Swarm Intelligence
- Impact of Light on Environment and Health
- Innovations in Aquaponics and Hydroponics Systems
- Plant nutrient uptake and metabolism
- Plant and Biological Electrophysiology Studies
- Plant Gene Expression Analysis
- solar cell performance optimization
- TiO2 Photocatalysis and Solar Cells
- Coffee research and impacts
- Leaf Properties and Growth Measurement
- Spacecraft Design and Technology
- Remote Sensing in Agriculture
- Analytical Chemistry and Sensors
- Space Science and Extraterrestrial Life
- Oil and Gas Production Techniques
- CO2 Reduction Techniques and Catalysts
- Microbial Community Ecology and Physiology
- Structural Analysis of Composite Materials
- Growth and nutrition in plants
- Plant tissue culture and regeneration
Utah State University
2019-2024
Wageningen University & Research
2022-2024
University of Florida
2019
Universitas Respati Indonesia
2017
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...
A crewed mission to and from Mars may include an exciting array of enabling biotechnologies that leverage inherent mass, power, volume advantages over traditional abiotic approaches. In this perspective, we articulate the scientific engineering goals constraints, along with example systems, guide design a surface biomanufactory. Extending past arguments for exploiting stand-alone elements biology, argue integrated biomanufacturing plant replete modules microbial in situ resource utilization,...
LED technology facilitates a range of spectral quality, which can be used to optimize photosynthesis, plant shape and secondary metabolism. We conducted three studies investigate the effect blue photon fraction on yield quality medical hemp. Conditions were varied among evaluate potential interactions with environment, but all environmental conditions other than maintained constant five-chambers in each study. The photosynthetic flux density (PPFD, 400 700 nm) was rigorously at set point...
Plants compete for sunlight and have evolved to perceive shade through both relative increases in the flux of far-red photons (FR; 700 750 nm) decreases all (intensity). These two signals interact control stem elongation leaf expansion. Although interacting effects on are well quantified, responses expansion poorly characterized. Here we report a significant interaction between fraction total photon flux. Extended photosynthetic density (ePPFD; 400 was maintained at three levels (50/100, 200...
A promising approach for the synthesis of high value reduced compounds is to couple bacteria cathode an electrochemical cell, with delivery electrons from electrode driving reductive biosynthesis in bacteria. Such systems have been used reduce CO2 acetate and other C-based compounds. Here, we report electrosynthetic system that couples a diazotrophic, photoautotrophic bacterium, Rhodopseudomonas palustris TIE-1, cell through mediator H2 allows capture both N2 all energy coming infrared (IR)...
Phytochrome, a well-studied photoreceptor in plants, primarily absorbs the red (R) and far-red (FR) regions is responsible for perception of shade subsequent morphological responses. Experiments performed controlled environments have widely used R:FR ratio to simulate natural environment phytochrome photoequilibrium (PPE) activity phytochrome. We review why PPE may be an unreliable metric, including differences weighting factors, multiple phytochromes, nonphotochemical reversions,...
The photon flux in the green wavelength region is relatively enriched shade and blue selectively filtered. In sole source lighting environments, increasing fraction of typically decreases stem elongation leaf expansion, smaller leaves reduce capture yield. Photons reverse these reductions through photoreceptor cryptochrome Arabidopsis thaliana, but studies other species have not consistently shown benefits photons on expansion growth. Spectral effects can interact with total flux. Here, we...
The ratio of active phytochrome (Pfr) to total (Pr + Pfr), called photo-equilibrium (PPE; also photostationary state, PSS) has been used explain shade avoidance responses in both natural and controlled environments. PPE is commonly estimated using measurements the spectral photon distribution (SPD) above canopy photoconversion coefficients. This approach effectively predicted morphological when only red far-red (FR) fluxes have varied, but environment research often utilizes unique ratios...
Nitrogen (N) recycling is essential for efficient food production in regenerative life support systems. Crew members with a high workload need 90–100 g of protein per person day, which about 14 N, or 1 mole day. Most this N excreted through urine 85% as urea. Plants take up predominantly nitrate and ammonium, but direct uptake urea possible small amounts. Efficient requires maintenance pH waste streams below 7 to minimize the volatilization ammonia. In aerobic reactors, continuous conditions...
Ultraviolet photons (UV) can damage critical biochemical processes. Plants synthesize photo-protective pigments that absorb UV to minimize damage. Cannabinoids UV, so increased has the potential increase cannabinoid synthesis. Studies in 1980’s provided some evidence for this hypothesis low-cannabinoid cultivars, but recent studies did not find an synthesis with increasing high-cannabinoid cultivars. These used low photon fluxes, we examined effect of higher fluxes. We fluorescent lights 55%...
A crewed mission to and from Mars may include an exciting array of enabling biotechnologies that leverage inherent mass, power, volume advantages over traditional abiotic approaches. In this perspective, we articulate the scientific engineering goals constraints, along with example systems, guide design a surface biomanufactory. Extending past arguments for exploiting stand-alone elements biology, argue integrated biomanufacturing plant replete modules microbial \textit{in situ} resource...
<title>Abstract</title> Food production and pharmaceutical synthesis are posited as essential biotechnologies for facilitating human exploration beyond Earth. These technologies not only offer critical green space food agency to astronauts but also promise minimize mass volume requirements through scalable, modular agriculture within closed-loop systems, offering an advantage over traditional bring-along strategies. Despite these benefits, the prevalent model evaluating such systems exhibits...
Photons during the dark period delay flowering in short-day plants (SDP). Red photons applied at night convert phytochromes to active far-red absorbing form (P fr ), leading inhibition of flowering. Far-red (greater than 700 nm) re-induce when after a pulse red period. However, sufficiently high intensity and duration sensitive species. Mechanistically, this response occurs because phytochrome-red r ) absorbance is not zero beyond nm. We nighttime from near infrared (NIR) LEDs (peak 850 over...
In sweet pepper (Capsicum annuum L.), the fruit yield is often negatively affected by abortion. Here we investigated whether abortion blue:red light ratio (B:R) and possible underlying physiological mechanisms related to carbohydrates hormones. Sweet plants were grown at B:R of 1:10, 1:3, 1:1 or 9:1 with a total photosynthetic photon flux density 200 µmol m−2 s−1, resulting in phytochrome photostationary state (PSS) 0.88, 0.86 0.72, respectively. For set observations, each plant was allowed...
Supplemental lighting is necessary for winter greenhouse tomato production, and optimised spectra must consider both yield energy use. In a 20-week experiment, two common commercial cultivars – 'Merlice' 'Brioso' were grown under four LED with 38%, 63%, 81%, 95% red photons. As the percentage of photons increased, blue green percentages decreased (not at same ratio). Stem length, specific leaf area, dry mass partitioning not significantly affected by in either cultivar, but increasing from...