Articles tagged with Photosynthesis
New research contradicts past findings on plant recovery from drought, revealing that sunflowers cannot fully recover from drought. A study by Colorado State University found that gas bubble blockages in sunflowers' water-transporting tissues do not reverse after watering, despite appearing to recover remarkably well from drought.
Researchers used high-resolution three-dimensional imaging to study the internal anatomy of sorghum leaves, revealing a complex ventilation system. The study found that reducing stomata size can increase air spaces beneath the leaf, improving CO2 distribution without compromising photosynthesis.
Researchers have successfully engineered plants to produce myoglobin, an important component of animal muscle, using a gene gun to insert the genes into chloroplasts. The yield was approximately three times higher than when inserted into the nuclear genome, paving the way for plant-grown meat production.
A new fiber-optic-inspired technology has been developed to distribute sunlight more evenly throughout algae cultivation systems, increasing biomass productivity by as much as six times. This innovation could benefit various applications that rely on photosynthetic organisms, including biofuel production and carbon capture.
Scientists have discovered that oxygenic photosynthesis is possible with only one photosystem, overturning a long-held assumption in biology. The study, published in Nature Communications, shows that the absence of one photosystem can be compensated by an alternative mechanism.
Researchers discovered a new signaling pathway allowing plants to adjust protein production in minutes, not hours. Short sequence elements in messenger RNA act as molecular switches, enabling direct regulation of protein synthesis.
Researchers developed a rice husk-derived biochar catalyst that degrades levofloxacin within four minutes under mild conditions. The catalyst works by activating peroxymonosulfate and inducing the formation of a surface intermediate, resulting in both radical and non-radical pathways for degradation.
Researchers investigated the function of antenna protein CP26 and found that it affects the structural organization of the photosynthetic system instead of directly participating in non-photochemical quenching. Plants lacking CP26 showed moderate modifications to NPQ rates and photosynthetic efficiency.
A new study found that even as oak trees continue to photosynthesize late into the year, their growth stops by mid-summer. This decoupling between photosynthesis and growth suggests that increased carbon uptake may not translate to greater wood production, reducing long-term carbon storage in forests.
Researchers found that plant species with tougher leaves actually suffered more from insect damage, while those with higher silicon concentrations sustained less. In contrast, plants with higher heat tolerance experienced greater herbivory. Understanding these drivers is crucial for predicting forest health under future climate scenarios.
A new study has discovered a crucial protein interaction that controls the photosynthetic machinery in plants. The discovery sheds light on how plants adapt to changes in light conditions and balance the light-harvesting capacities of both photosystems, enabling efficient energy transformation.
A new international study challenges long-held beliefs about how ecosystems absorb carbon under global warming. Plants are using water more efficiently while developing larger canopies to absorb light and fix carbon, making this the dominant factor in determining carbon dioxide uptake.
Researchers create conjugated polymer with bipyridine units that enhances water oxidation kinetics and charge separation, leading to high efficiency in H2O2 production. The strategy offers a promising route for sustainable chemical synthesis driven by solar energy.
Researchers design polymer networks to replicate dynamic behaviors inspired by biological systems. Self-oscillating gels exhibit rhythmic motion similar to a beating heart, while artificial photosynthetic gels convert light into chemical energy.
Researchers studied cyanobacteria Synechocystis to understand how it adapts to fluctuating light conditions, revealing mutations that enhance resilience. These findings may provide new strategies for improving crop tolerance to changing light intensities.
Researchers developed an ultrafast transient absorption microscope to analyze fluctuations and heterogeneities in light-harvesting antennae. The study revealed two kinetic components with nearly identical time constants and quantified photophysical properties associated with these components.
A novel study in Biological Diversity reveals the integrated physiological and symbiotic adaptation mechanism underlying P. purpuratum's ex situ conservation. The research demonstrates that ex situ conservation elevates seed-set rates but incurs trade-offs in photosynthetic capacity and oxidative stress.
Researchers identified a potential connection between photosynthetic strategy and dark inhibition levels, with C3 and CAM plants showing variable and elevated levels, respectively. The study aims to inform future efforts to engineer more efficient photosynthesis in crops.
Researchers determined the LH1-RC complex structure at high resolution, identifying a new membrane protein and non-heme Fe ion that may facilitate electron transfer. The findings provide insight into the photosynthetic complex and could contribute to genetically engineered phototrophic systems and bioremediation technologies.
Researchers develop hybrid photocatalyst system to overcome light-induced damage in molecular catalysts, significantly improving CO2-to-formate quantum yield from 6% to over 27%. The new design ensures selective excitation of semiconductors and prevents unwanted photochemical reactions.
A new study reveals that transforming biomass from dedicated energy crops into biochar could provide a cost-effective and scalable solution for removing carbon dioxide from the atmosphere, helping China move closer to its carbon neutrality goals. Biochar can lock carbon in soils for decades or even centuries while improving soil health.
Photorespiration provides carbon atoms required for environmentally induced DNA modification, influencing plant adaptation to environmental influences. The study found a metabolic connection between photorespiration and epigenetic regulation, suggesting a new approach to optimize crop strategies.
Researchers discover a unique protein component, RbcS-STAR, that helps concentrate carbon dioxide around Rubisco, boosting photosynthetic efficiency. This breakthrough could lead to more sustainable food production by improving crop yields while reducing environmental impact.
Researchers propose a new biochemical pathway, the 'Bloom cycle,' which converts nitrogen into essential compounds, boosting crop production and nutritional quality. This discovery suggests that photorespiration is not a waste of energy, but rather a vital process for plant survival.
A 40-year greening project in China's Taklamakan Desert has successfully reduced atmospheric carbon dioxide levels and increased solar-induced fluorescence, indicating a measurable carbon sink. The project demonstrates the potential of afforestation to mitigate climate change, despite being only a small dent in global emissions.
Researchers used a quantum device to simulate a vibrating molecule, tracking how energy moves within it. They found that vibrations can actively steer energy flow in unexpected ways, speeding up transfer and opening new pathways.
Cyanobacteria can absorb and break down guanidine, using it as their sole nitrogen source, according to a new study. The ability to utilize guanidine is an advantage for colonization, despite its previous classification as a toxic substance.
A new study reveals that maize roots can absorb CO2 from the soil atmosphere, contributing to plant biomass and challenging traditional views on carbon balances in croplands. The root system plays an active role in regulating carbon flows between soil, plants, and the atmosphere.
A new review evaluates biological strategies to improve the efficiency of photosynthesis, highlighting promising solutions such as engineering Rubisco enzyme and developing cooperative crops. The research aims to address global challenges in agriculture and ensure food security for the world's population.
A recent study mapped the evolutionary history of Asia-Pacific Balanophora species, revealing its retained plastids despite losing photosynthetic genes. This allows it to survive entirely as a parasite on specific tree roots, with some species producing seeds without fertilization.
A team of scientists has discovered chemical evidence of ancient life in 3.3 billion-year-old rocks, doubling the window of time for detecting organic molecules that reveal information about original organisms. The study also found molecular signs of photosynthesis dating back over 800 million years earlier than previously documented.
Butterworts have evolved CAM photosynthesis, a pathway similar to that of cacti and succulents, allowing them to thrive in dry habitats. This adaptation enables the plants to conserve water and produce sticky mucilage for trapping prey.
Scientists have created a micro-algal platform that allows for automated and fast testing of chloroplast genetic modifications, opening up plant chloroplasts to high-throughput applications. This platform enables researchers to fine-tune genetic circuits and identify which modifications have real potential.
Australian researchers have developed tiny compartments to help supercharge photosynthesis, enabling plants to fix carbon more efficiently. The team engineered encapsulins that can house the enzyme Rubisco in a confined space, allowing for fine-tuning of compatibility for future use in crops.
Researchers studied the genetic response of umbrella acacia and splendid thorn acacia to drought stress. The study found that umbrella acacias prioritize continued growth over water conservation when water is scarce, using up all accessible water to survive severe droughts. In contrast, splendid thorn acacias invest in water conservati...
Researchers at Chinese Academy of Sciences identify a key gene and protein involved in controlling DNA looping, leading to increased grain yield and nitrogen efficiency. The discovery paves the way for future crop breeding strategies to improve sustainability.
Researchers found that plant roots can actively absorb CO₂ from the soil, with this process influenced by light, fertilizer, and atmospheric conditions. Root-based CO₂ absorption may be an alternative carbon nutrition pathway.
Researchers at Michigan State University have discovered a crucial regulatory pathway in cyanobacteria that enables them to balance their energy demands and improve photosynthesis efficiency. The study reveals that the protein RpaA plays a key role in controlling carboxysome growth and integrity, allowing for better understanding of ca...
Researchers at Rice University discovered that energy transfers faster between molecular sites when starting in an entangled state. This finding has implications for creating more efficient light-harvesting materials and understanding biochemical processes like photosynthesis.
The study reveals that marimo experience significant decline in photoinhibition just after ice melts but recover their function within 20-30 days in spring. This critical period highlights the importance of conservation efforts for marimo preservation.
Researchers discovered the largest eukaryotic photosystem I-fucoxanthin-chlorophyll supercomplex in coccolithophores, which can expand its light-harvesting cross-section by three to four times while maintaining over 95% energy conversion efficiency.
The study found that DLDG1 regulates NPQ by controlling proton conductivity within the thylakoid membrane through CFo-CF1 ATP synthase activity. The dldg1hope2 double mutant showed faster NPQ induction than the hope2 mutant, indicating a complex relationship between DLDG1 and NPQ regulation.
A Rutgers University study reveals that iron stress slows photosynthesis in phytoplankton, reducing oxygen production and impacting the food chain. The research found that up to 25% of light-harvesting proteins are uncoupled from energy-producing centers, wasting energy.
A team of researchers at the University of Toronto has identified a protein, Shikimate kinase-like 1 (SKL1), that enables land plants to convert light into energy through photosynthesis. This discovery holds promise for improved herbicides and increased efficiency of photosynthesis in food crops.
A new study using NASA's PACE satellite data established a novel method to determine global plant productivity. The technique relies on the light plants reflect, allowing for accurate capture of short-term changes. This approach has significant implications for understanding carbon sequestration, climate change, and ecosystem monitoring.
A newly discovered pathway in plants complements the main workflow of photorespiration, aiding in processing cytotoxic chemicals and improving energy efficiency. This parallel pathway has potential for increasing crop yield without compromising plant resilience to stress conditions.
Researchers at IISc and Caltech use simulations to map energy landscape for electron movement in PSII, finding D2 branch has higher energy barrier preventing electron transport. The team suggests tweaking components can boost or rewire electron flow across PSII.
A novel, needle-type biosensor allows for real-time monitoring of sucrose uptake in plants, revealing light-dependent stomatal uptake and daily rhythms. The sensor's high sensitivity and stability enable the detection of subtle physiological events, shedding new light on plant biology.
New research reveals that plants rely on multiple heat-sensing systems and a sugar-based mechanism to detect temperature changes. Sugar produced in sunlight helps plants grow taller even when thermosensors like phytochrome B are less effective. This discovery could lead to breeding crops more resiliently under stress.
Researchers at Colorado State University have developed a more efficient light-based process for transforming fossil fuels into useful modern chemicals, effective even at room temperatures. The organic photoredox catalysis system uses visible light to alter chemical compounds, reducing energy demands and pollution in various industries.
A new study reveals how nanoparticles can interfere with photosynthesis in plants, reducing their ability to convert sunlight into food. The research team found that nanoparticles undergo changes in pH and pick up lipid coatings from plant membranes, boosting their binding to RuBisCO and impairing its function.
A team of researchers analyzed a photosynthetic complex found in a marine alga and discovered a unique arrangement of antenna proteins around the photosystem core. This structure indicates an adaptation to its living environment and provides insights into the efficiency of light-harvesting under certain conditions.
Scientists have designed human-made molecules that self-assemble into stacked rings, allowing charge and energy to circulate freely, echoing photosynthesis. This breakthrough could lead to improved energy generation and advanced electronics.
A team of scientists has decoded the structure of a light-harvesting nanodevice in a 3-billion-year-old lineage of cyanobacteria, providing an unprecedented glimpse into early life's photosynthetic assembly. The discovery reveals that even three billion years ago, photosynthesis had reached a remarkable degree of sophistication.
Researchers have found new organisms that can capture carbon dioxide and clean pollutants from the environment. By exploring extremophiles in homes, scientists can gain insights into their unique characteristics and develop sustainable solutions.
Researchers discovered that trees close their stomata earlier than previously thought, prioritizing growth over photosynthesis during drought. This finding has implications for carbon sequestration and climate models, suggesting that trees may absorb less CO2 from the atmosphere during droughts.
Researchers have discovered a way to regulate starch storage in algae using blue light-activated signalling pathways. This method has the potential to increase starch production in biofuels, improve nutritional value of agricultural feed supplements, and capture more carbon dioxide, reducing greenhouse gases.
The European Commission has awarded €8 million to two projects, SUN-PERFORM and Solar to Butanol – S2B, to develop highly efficient bio-inspired technologies for renewable fuel production. These innovations target hard-to-electrify sectors like aviation and shipping, aiming to significantly reduce Europe's carbon emissions.
Researchers from Chiba University identified a previously unreported gene, LIRI1, which plays a crucial role in regulating the balance between starch and lipid storage in plant leaves. The study suggests that LIRI1 promotes carbon allocation by activating starch production and inhibiting starch degradation.
A study published in Science Advances has revealed promising alternative pathways to overcome photorespiration, which can reduce crop productivity by up to 36%. The researchers identified mechanisms that could improve plant productivity while adapting to climate change and growing global food demands.