Articles tagged with Photosynthesis
New observational study shows that certain Amazon rainforest regions increase photosynthesis in response to limited water stress, contradicting Earth system models. This discovery suggests the current models overestimate carbon losses in the Amazon rainforest due to climate change.
Researchers at Kobe University developed a high-speed detection method to observe oxygen generated by artificial photosynthesis, revealing the mechanism behind water-to-oxygen reaction. The new method is 1000 times faster than conventional methods and could contribute to developing efficient photocatalysts for clean energy.
Researchers have successfully installed part of the C4 photosynthetic pathway in rice, paving the way for more efficient and water-use-friendly crop varieties. The breakthrough could increase photosynthesis efficiency by 50% and improve nitrogen use efficiency.
GAIN4CROPS project uses nature-inspired approaches to enhance photosynthetic efficiency in sunflowers, promoting climate-resilient crops and sustainable agriculture. The research could lead to decreased land, nitrogen, and water usage, aligning with efforts to conserve biodiversity and reduce environmental impact.
Research reveals that crops adapted to pre-industrial environments, like corn and sorghum, cannot efficiently utilize elevated CO2 levels. Experts propose engineering these plants to optimize resource allocation, potentially boosting productivity in a future with rising CO2 concentrations.
A 30-year review of climate experiments found that C3 crops' yields may increase by 18% with adequate nutrients and water, but quality losses and increased vulnerability to pests and diseases are also expected. Genetic solutions and bioengineering can help mitigate negative effects, but developing new crop cultivars is time-consuming.
Researchers developed a model that shows CAM-like metabolism can save more than 50% of water while maintaining 80% productivity in temperate climates. The study also identified an alternative CAM cycle involving mitochondrial enzyme ICDH, which can add up to 11% of total water savings.
CAM photosynthesis, used by arid plants, is introduced into C3 plants to reduce water loss. The study reveals alternative metabolic modes can provide environment-specific benefits under certain conditions, helping prepare for growing food crops in increasingly hot and dry temperate environments.
The study elucidated how Rubisco activase works, revealing that it grabs the N-terminal tail of Rubisco and releases inhibitory sugar molecules using ATP energy. This dual function enables Rca to recruit into carboxysomes, where CO2 is generated, making photosynthesis more efficient.
Researchers compared the DNA of four C3 grass crops and four C4 grass crops to identify regions that control the expression of four enzymes involved in photosynthesis. They found 'activators' that trigger expression in bundle sheath cells and 'repressors' that restrict expression in mesophyll cells.
A new study published in Nature Plants suggests that tropical forests like the one at Biosphere 2 may be more resilient to predicted temperature increases than previously thought. The rainforest's ability to photosynthesize steadily even at high temperatures, up to 38C, challenges current climate change predictions for the Amazon.
Researchers have engineered a red-algae-like Rubisco enzyme into crops, doubling CO2-fixation rates. The breakthrough aims to increase crop production and improve photosynthesis efficiency.
Researchers at Osaka City University have discovered metal ions as a key component to produce malic acid, a molecule with 4 carbon atoms, through artificial photosynthesis. This innovation enables the exploration of CO2 as a raw material for producing complex materials.
Researchers created an optimal experimental environment by introducing engineered plant enzyme into E. coli bacteria. They discovered that a specific subunit of Rubisco works faster than others and can be improved in bacteria to boost crop productivity.
A recent study from the University of Guam found that leaves grown under fluctuating light respond better to sunflecks than those grown under homogeneous shade. The research highlights the need for experimental methods to mimic natural light fluctuations in plant physiology.
Researchers discovered that rhodochrosite can be photooxidized by UV light under anoxic conditions, suggesting a possible alternative to biological catalysts for oxygenic photosynthesis. This finding provides insight into the evolution of oxygenic photosynthetic organisms on Earth.
Researchers from the University of Turku discovered a novel molecular mechanism in conifers that enables them to adapt to winter conditions by dissipating excess light energy as heat. This finding sheds new light on photosynthesis regulation and its importance for conifer forests' carbon sink capacity.
A recent study published in Food and Energy Security found that optimizing cowpea canopies can significantly improve CO2 assimilation and water-use efficiency, leading to increased crop yields. Researchers used a canopy gas exchange chamber to measure plant responses to different canopy architectures, revealing that higher biomass cano...
Researchers have made two major breakthroughs to optimize photosynthesis, increasing crop growth by 27 percent in field trials. The discoveries improved the efficiency of electron transport and carbon fixation, resulting in increased productivity and water conservation.
Researchers at Berkeley Lab and JCAP develop new technique to map out nanoscale changes in bismuth vanadate, leading to improved oxygen production and reduced degradation. The study provides insight into the material's properties and their impact on water-splitting reactions.
A breakthrough in understanding rubisco, a crucial enzyme in photosynthesis, could lead to significant gains in crop production. By revisiting a billion-year-old strategy, scientists have identified new ways to enhance rubisco activity.
Researchers find that manipulating magnesium intake can improve photosynthetic efficiency and growth in rice plants. By understanding the daily pattern of magnesium uptake, scientists may be able to develop new strategies for improving crop yields and addressing global food shortages.
Researchers identified eight new acetyltransferases in plants, which are doubly catalytically active and play a role in photosynthesis. The study reveals an entirely new complexity within the enzyme machinery, suggesting other enzymes with similar dual activities exist in eukaryotic cells.
A new study by Columbia University reveals that even as temperatures warm, light remains a major factor in limiting carbon uptake in northern high latitudes. This limitation means that these regions will not become more conducive to vegetation growth and instead release more carbon dioxide.
Scientists have uncovered new structural details of an aquatic microorganism's LHCI-PSI complex, shedding light on the energy harvesting and transfer process. The discovery highlights unique features of diatom proteins, which can inform the development of efficient solar-energy utilization devices.
Researchers introduce fluorescence protein sensors into live plants to visualize dynamic changes in NADPH level and NADH/NAD+ ratio in different cell types. This allows for the study of photosynthesis and photorespiration, revealing the close connection between subcellular compartments for efficient metabolism.
A recent study published in Frontiers in Plant Science found that crops' lower leaves are less efficient due to altered light conditions, not age. This 'Achilles' heel' can cause a 10% loss of potential canopy photosynthesis gain, highlighting the importance of optimizing light environments for improved crop yields.
Researchers have identified 76 types of aquaporins in tobacco, a model plant species closely related to major crops like tomato and potato. This discovery sheds light on the functional roles of aquaporins in plants, which could lead to improved crop productivity and resilience.
Researchers have captured a molecular mechanism behind the water splitting reaction of photosynthesis using nanoscale imaging and chemical analysis. The study could help inform the design of artificial photosynthetic systems producing clean and renewable energy from sunlight and water.
Nathaniel Gabor's lab is developing a new microscopy technique to study bacterial growth in light and examine the physics of light harvesting. The project aims to gain precise control of optical excitation at the single cell level, potentially upending the current state of knowledge on light sensing in biosystems.
Scientists have developed a catalyst that directly converts carbon dioxide into formic acid using sunlight. The discovery marks a significant step towards creating an artificial photosynthesis system that efficiently converts CO2 into organic molecules.
A Max Planck research team led by Tobias Erb developed an artificial chloroplast platform capable of capturing and converting greenhouse gas carbon dioxide with light. The system, created using synthetic biology and microfluidics, outperforms previous synthetic-biological approaches in binding rates for carbon dioxide.
Researchers have successfully reengineered the Photosystem I complex to produce biohydrogen, a sustainable alternative to fossil fuels. The innovation could lead to the creation of low-cost, renewable energy platforms using sunlight and water.
Researchers from Lancaster University have successfully modified a molecular building block in wheat to activate Rubisco faster in hotter temperatures. This breakthrough could help protect crops from rising temperatures and improve global food security.
Researchers are developing innovative solutions to increase crop production under climate change conditions, including improving photosynthesis and making crops more resistant to drought. The goal is to double cereal production by 2050 to ensure global food security.
A new study from Columbia University reveals that the balance between soil water and energy availability determines whether plant growth is limited by precipitation or temperature. This finding highlights the crucial role of precipitation in supporting plant photosynthesis, particularly during the late growing season.
A study using satellite data and in-situ sensor observations found that the end date of plant photosynthesis is constrained by both temperature and water limits. As temperatures decrease, soil water demands increase to support continued vegetation growth, potentially leading to expansions of regions with limited photosynthesis.
A research team at Washington State University has identified the lipid controlling the switch in light-harvesting proteins to dissipate excess energy. This discovery could lead to optimizing photosynthesis in crops for specific environments, reducing waste and increasing food production.
Researchers discovered that when cyanobacteria cells become too crowded, they shut down photosynthesis as a defense mechanism. This phenomenon allows the cells to slow down growth and avoid rupture, providing insights into how organisms regulate this essential process.
A team of scientists has developed a nature-inspired design for artificial photosynthesis, capable of generating large sources of renewable energy using CO2. The system consists of nanoscale tubes that mimic the structure of living photosynthetic cells, allowing for efficient conversion of sunlight into fuel.
A team from the University of Illinois has developed a new method to quickly screen thousands of plants for key traits related to photosynthesis. This breakthrough technology uses hyperspectral cameras to analyze light reflected off plant surfaces and estimate trait values, allowing researchers to identify promising plants for further ...
Researchers have discovered a previously unknown signaling pathway that protects chloroplasts from damage caused by intense sunlight. This pathway, involving the protein SAFE1, suppresses light-induced programmed cell death and promotes stress tolerance in plants.
Researchers found a 117% difference in photosynthetic efficiency between rice varieties under fluctuating and constant light conditions. This suggests that natural diversity in rice could be harnessed to increase crop productivity.
A new mathematical computer model predicts that soybean crops lose up to 13% of their productivity due to minute-by-minute light fluctuations. The study aims to improve photosynthesis and equip farmers with higher-yielding crops to ensure global food security.
Researchers at Boyce Thompson Institute developed a new type of corn that recovers much more quickly after a cold snap, allowing for earlier harvests and potentially higher crop yields. This breakthrough could enable farmers to command better prices for their crops in temperate climates.
New research suggests that cleaning up ozone precursors in energy, industrial, and transportation sectors can mitigate climate change by increasing the land's ability to remove carbon dioxide through photosynthesis. This could result in a 15% increase in the size of the current land sink for carbon.
Researchers at the Institute for Basic Science have developed a new strategy to convert CO2 into oxygen and pure carbon monoxide using nanoparticles. The hybrid catalyst, made of blue titania, tungsten trioxide, and silver, shows 200 times higher performance than previous versions.
A team of researchers has uncovered the location and functions of Chl f, a newly discovered chlorophyll molecule that could improve solar cell efficiency. The study found that far-red light causes structural changes in photosystem I, leading to Chl f synthesis and enhancing up-hill energy transfer.
A new study published in Nature Plants reveals that there is no simple or universal solution to the problem of engineering plants to cope with the challenges posed by climate change. Higher levels of photoprotection may actually interfere with other mechanisms important for plant growth, and targeted adaptation is a complex task.
Researchers from Washington University in St. Louis and Argonne National Laboratory have successfully reversed the flow of electrons in a purple photosynthetic bacteria, achieving a 90% yield on the B-branch side. This breakthrough discovery sheds light on the earliest light-driven events of photosynthesis and could aid in designing bi...
Researchers characterized the light-harvesting system of Chlamydomonas reinhardtii, a common unicellular green alga. The study reveals the assembly mechanisms and energy transfer pathways of the C2S2M2L2 supercomplex, shedding light on efficient light harvesting in green algae.
Freshwater plants in lakes with high bicarbonate concentrations have higher photosynthesis yields, altering species richness and composition. This shift is expected to change underwater meadow structure and predator protection for small animals and juvenile fish.
A global study reveals that bicarbonate use among aquatic plants is linked to local geology and concentration levels. Many freshwater plants have evolved to use bicarbonate for photosynthesis due to low dissolved CO2 in water.
Researchers have solved the structure of cytochrome b6f, a protein complex that powers plant growth via photosynthesis. The discovery reveals new insights into how the complex regulates photosynthetic efficiency in response to environmental conditions.
Recent research on turbocharged crops reveals that their productivity lies in sugar sensing mechanisms regulating photosynthesis. Unlike C3 plants, C4 crops are not sensitive to high levels of sugars, suggesting a more complex feedback mechanism.
Researchers used ultrashort X-ray pulses to study Photosystem I, a large biomolecular system converting sunlight into chemical energy. This breakthrough paves the way for time-resolved studies on electron transfer in photosynthesis, with potential applications in medicine and next-generation solar energy storage.
A University of Oklahoma-led study found a significant increase in photosynthesis in the Amazon rainforest during the dry season, as measured by satellite-based solar-induced chlorophyll fluorescence. The study provides new insights into the dynamics of Amazonian photosynthesis and its impact on global atmospheric carbon concentrations.
Researchers conducted a 'Photosynthesis Olympics' study to identify the most efficient wheat varieties, finding that top performers were up to 90% better than worst ones due to genetic differences. The results have significant implications for breeders and farmers, offering potential for improved yields with reduced inputs.
A recent study published in New Phytologist identified opportunities to boost cassava yields by optimizing photosynthesis. Researchers found that cassava's stomata limit photosynthesis during light transitions, and increasing the speed of these pores could increase yield potential by up to 6%.
Researchers found that two Sphagnum species in the Le Forbonnet peatland can survive extreme temperatures and droughts. This suggests that preserving peatlands is crucial for mitigating climate change.