Articles tagged with Photosynthesis
Scientists discovered that a specific protein allows Miscanthus x giganteus to photosynthesize at low temperatures, whereas corn struggles. The study suggests expressing this gene in corn could make it more tolerant of cold weather events.
Researchers have gained insight into the way Cyanothece, a cyanobacterium, regulates its physiological processes through its circadian rhythm. The study found that genes governing vital processes like energy metabolism and nitrogen fixation cycle on and off with changing light and dark periods.
Researchers at Jülich and Emory University have synthesized a stable inorganic metal oxide cluster that enables the fast and effective oxidation of water to oxygen. This breakthrough could contribute to solving energy and climate problems by producing hydrogen from renewable sources using artificial photosynthesis.
The new method allows researchers to localize pigments with similar fluorescence spectra, providing insights into photosynthesis and cellular function. The study reveals compositional heterogeneity between thylakoid rings, with different processes in photosynthesis occurring in different areas of the membranes.
Researchers found that healthy coral polyps rely on both photosynthetic carbon from algae and feeding-derived carbon for survival. The study suggests a key role for this dual carbon source in coral recovery from bleaching, with implications for the management of these critical ecosystems.
Researchers at Penn State have developed a proof-of-concept device that can split water and produce recoverable hydrogen using sunlight. The system, which uses a catalyst complex to mimic natural photosynthesis, achieves an efficiency of about 0.3 percent but holds promise for future improvements.
Cornell researchers have proven the polymer trap model theory of sugar transport in plants, which could lead to increased photosynthetic rates and carbon dioxide intake. The study uses genetic engineering to silence genes involved in sucrose polymerization, resulting in a buildup of sugars in leaves.
University of Illinois researchers successfully simulated every step of the photosynthetic process using a computer model that mimics evolution. The new findings suggest that by rearranging the investment of nitrogen, they can almost double efficiency in plants. This could lead to increased crop yields and improved plant productivity.
Researchers have sequenced the genome of Chlamydomonas, a tiny green alga with approximately 15,000 genes. The study provides new insights into human diseases associated with cilia dysfunction, as well as photosynthesis and metabolic processes.
A research team led by Neal Woodbury has uncovered a new view of photosynthesis, revealing the orchestrated movement of proteins on a millionth of a second. This discovery helps explain why changing the energetics didn't knock out photosynthesis, and offers lessons for improving organic solar cells.
Researchers used 2-D spectroscopy to study a bacteriochlorophyll complex and detected 'quantum beating,' where light-induced excitations meet and interfere constructively. This discovery explains the extreme efficiency of energy transfer in photosynthesis.
A study by Berkeley Lab and UC Berkeley reveals that quantum mechanical effects enable nearly instantaneous energy transfer in photosynthesis. Quantum beats, coherent electronic oscillations, play a crucial role in the process.
Brookhaven chemists aim to replicate natural photosynthesis to produce fuels like methanol, methane, and hydrogen from water and carbon dioxide using renewable solar energy. They are investigating various catalysts, including ruthenium-based complexes, to mimic the natural process of oxygen production from water.
Van Voorhis is developing methods to simulate electron transfer and improve the efficiency of devices such as LEDs and optical displays. His research aims to create a larger portion of energy storage in artificial photosynthesis, potentially leading to more efficient solar energy storage.
Researchers discovered that single-celled cyanobacterium Synechococcus fixes nitrogen gas at night, converting it into biologically useful compounds. This finding sheds light on how hot-spring microbial communities obtain essential nutrients, and highlights the complex metabolic strategies of these microorganisms.
Scientists at Freie Universität Berlin identify a new intermediate state in the Kok cycle, crucial for molecular oxygen formation. This discovery sheds light on the mechanism of photosynthesis and has implications for more efficient solar cells.
Researchers have identified two protein kinases, STN7 and STN8, responsible for regulating short-term and long-term adaptations in plant photosynthesis. The discovery provides new insights into the regulation of photosynthetic proteins and has significant implications for understanding plant adaptation to changing light conditions.
UCR research shows that increasing plant vitamin C levels can minimize ozone's damaging effects, reducing brown spots, stunted size, and lowered crop yields. The study found that higher vitamin C levels in plants also improve photosynthesis, offering a clear direction for developing plants that can thrive in high-ozone environments.
Scientists have developed a new technique to track molecular energy transfer in photosynthesis, revealing distinct energy pathways and quantum mechanical effects. This breakthrough may lead to more efficient artificial photosynthesis systems and sustainable energy sources.
Scientists have discovered that zeaxanthin, a carotenoid pigment, plays a crucial role in protecting plants from excessive solar energy. The study used ultrafast spectroscopic techniques to follow the movement of absorbed excitation energy and found that zeaxanthin interacts with chlorophyll molecules to dissipate excess energy.
A new study by UC Davis researchers shows that photorespiration, long thought to be a wasteful process, is essential for healthy plant growth and nitrogen uptake. Elevated atmospheric carbon dioxide and low oxygen levels inhibit nitrate assimilation, leading to slowed plant growth.
A team of Purdue biologists has determined the structure of the cytochrome protein complex, critical for photosynthesis in a blue-green bacterium. The study reveals the entire mechanism of photosynthesis and its energy flow, shedding light on animal metabolism.
This study found that elevated tropospheric ozone concentrations inhibit photosynthesis in soybeans, leading to decreased growth and yield. The results suggest a potential annual loss of $21 million for the US soybean industry based on current production levels.
A recent study suggests that rising ozone levels could lead to a significant loss of $21 million annually in US soybean production over the next 30 years. Researchers found that soybeans suffer from reduced photosynthesis and biomass, resulting in fewer seeds and pods, and decreased seed weight.
A new study reveals that elevated carbon dioxide levels can improve corn growth during drought periods, increasing photosynthesis by up to 41% in some cases. The findings suggest that C4 plants like corn may benefit from rising CO2 levels, but other factors such as ozone levels could still impact crop yields.
Researchers analyzed genomes of five bacteria to understand how photosynthesis evolved, finding evidence of horizontal gene transfer and the merging of evolutionary lines. The study sheds light on the origins of complex metabolic pathways and may inspire human-directed biodesign.
Scientists have sequenced the genome of Chlorobium tepidum, a green-sulfur bacterium that performs photosynthesis in the absence of oxygen. The analysis reveals strong similarities between its metabolic processes and those of Archaea, suggesting a possible duplication of genes involved in photosynthesis.
Argonne chemist Thurnauer has made a laboratory version of an energy 'pump' that keeps negatively charged electrons away from positively charged holes. This technology could be used to chemically neutralize toxic compounds, such as hazardous waste, through controlled electron movement.
Researchers found that insect damage affects not just the hole in the leaf, but also surrounding areas with reduced photosynthesis activity. The device revealed an 80-fold increase in furanocoumarin synthesis, a defensive chemical used by plants to boost their defense.
Researchers have discovered that a T arrangement in molecular electronic switches enables efficient communication between distant molecules, facilitating the on and off states of the switch. This finding broadens design possibilities for molecular photonics, solar energy conversion, and nanotechnology.
Researchers created a test-tube photosynthesis system that mimics the metal cluster in green plants, shedding light on how life-giving oxygen is produced. The study, led by University of Delaware chemist Arnold Rheingold, may suggest new strategies for converting sunlight into electricity and enhance our appreciation of the natural world.
Researchers found that some algal cells can grow and survive in near-normal conditions without Photosystem I, a key component of traditional photosynthesis. This discovery may challenge our understanding of plant biology and suggest new avenues for studying photosynthesis.