Articles tagged with Chlorophyll
Researchers have discovered that yellow phyllobilins in autumn leaves function as four-step molecular switches that react to light, with the molecular environment determining the switching mechanism. These findings suggest potential physiological roles for these compounds in plant photoregulation.
Hokkaido University researchers have identified a key enzyme involved in chlorophyll degradation and the formation of autumn colors. By understanding this process, scientists may uncover novel mechanisms for photosynthesis and discover new enzymes with potential applications.
Increasing nitrogen concentrations significantly impact purslane's carotenoid and chlorophyll content. Researchers found that higher nitrogen levels increased chlorophyll and beta-carotene levels in the plant.
Researchers discovered a gene that enables plants to harness energy from the far-red-light spectrum, potentially increasing plant productivity. This breakthrough could lead to the development of more efficient crop plants and even artificial photosynthesis as an alternative energy source.
Researchers have discovered that arsenic accumulates in the nuclei of plants' cells at low concentrations, impairing photosynthesis. The toxic metalloid can cause genetic damage by replacing phosphorus in genes.
Researchers found that foliar applications of kaolin at 2.5% and 5% controlled approximately 80% of the whitefly population in bean crops. Kaolin also improved plant physiology, reducing transpiration by 40% and increasing leaf chlorophyll content by 43%.
Researchers found that supplemental lighting with red and blue LEDs can increase anthocyanin synthesis and pigmentation of lettuce crops, leading to improved color and increased market value. This cost-effective practice allows growers to manipulate leaf color in 5-7 days without negatively affecting growth or morphology.
A team of chemists has synthesized molecules that can absorb any color of sunlight, from oranges to near-infrared. By understanding how these pigments work, they aim to manipulate their light absorption at will.
A new study uses laser technology and chlorophyll fluorescence to sort Capsicum pepper seeds, increasing germination percentages and uniformity. The technique has been shown to improve seed quality in pepper lots, enhancing plant growth and development.
Researchers have established a new technique to predict seasonal cholera epidemics months in advance with greater accuracy, utilizing remote satellite imaging and measuring organic matter. The 'satellite water marker' index was found to be more accurate than previous methods, reducing error rates by up to 30%.
A recent study published in Food and Chemical Toxicology found that chlorophyll can protect against cancer when exposed to moderate levels of carcinogens, reducing liver and stomach tumors by 29-64% and 24-45%, respectively. However, high doses of chlorophyll increased tumor growth, questioning traditional lab research methods.
Tomato and watermelon crops show higher capacity for carbon fixation under saline conditions. In contrast, lettuce, melon, and pepper crops have lower photosynthetic rates and chlorophyll content, indicating reduced efficiency in CO2 accumulation.
Researchers confirmed that citric acid reacts with sunlight to harvest energy and form purple-colored nanoparticles, a potential green energy source.
A study found that a decrease in chlorophyll concentration, leading to a change in ocean color, can reduce hurricane formation by 70% in the North Pacific. This reduction is due to changes in air circulation patterns and surface water temperature.
A new study has found that chlorophyll and its derivative chlorophyllin are effective in limiting the absorption of aflatoxin in humans. The Phase 0 approach allows for the measurement of minute amounts of aflatoxin, revealing rapid absorption that is significantly limited after treatment with chlorophyll and chlorophyllin.
Scientists at Leiden University have successfully developed an artificial leaf that can convert sunlight into fuel and clean energy. The breakthrough, which is the first step in creating an artificial photosynthesis system, involves modifying chlorophyll molecules to resemble the efficient light antennae of bacteria.
Researchers discovered the chlorophyll molecules' structure, enabling artificial photosynthetic systems. The chlorosomes contain up to 250,000 chlorophylls and have unique internal structures.
A new technique allows for a quantitative and precise determination of plant viability during drought stress using chlorophyll fluorescence. This method is non-invasive, easy to measure, and minimizes technical expertise, making it a valuable complement to existing methods.
Ripe bananas exhibit bright blue luminescence when exposed to UV light, attributed to breakdown products of chlorophyll. The intensity of the glow decreases as ripening progresses.
Researchers identified pigment-binding protein CP29 as a valve regulating excess solar energy during photosynthesis. The study suggests that ambient pH levels can control the dimmer switch's opening and closing, with implications for designing artificial photosynthesis systems.
The researchers' successful sequencing of the cyanobacterium's genome has revealed its genetic secrets, shedding light on how it produces chlorophyll d and absorbs far-red light. This discovery holds potential for plant research and could lead to the development of crops that can harness a wider range of light spectrum.
Scientists have sequenced the genome of a rare cyanobacterium that produces an even rarer form of chlorophyll, enabling it to harness near-infrared light. This breakthrough could lead to genetically altered plants that can store and generate solar energy, increasing photosynthesis efficiency.
Researchers found that breakdown of chlorophyll in ripening fruits produces highly active antioxidants called nonfluorescing chlorophyll catabolytes (NCCs). These NCCs are effective against oxidative stress and may play a role in human health. The study suggests that consuming ripe fruits regularly can provide potential health benefits.
Researchers found major increases in chlorophyll a concentration in six lakes on Baffin Island, indicating dramatic changes in ecosystem function. This increase occurred approximately 150 years ago, coinciding with the start of the Industrial Revolution and increased human impact on global atmospheric chemistry.
A Swedish research team has identified a protease that degrades the LHCII protein, which is responsible for the green color of leaves. This discovery sheds light on the plant's recycling process and how it prepares for winter.
Phytoplankton population and size can change dramatically due to El Niño and La Niña events, affecting ocean ecology and influencing the climate. These changes impact carbon storage in the ocean, which in turn helps stabilize carbon dioxide concentrations in the atmosphere.
Researchers have developed a new method to estimate global ocean productivity by analyzing the amount of carbon in phytoplankton, using satellite data and ocean color. This approach may lead to significant revisions in estimates of ocean carbon absorption and new understanding of marine ecosystems.
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.
Researchers found that nutrient-poor ocean areas have 'hot spots' of high chlorophyll concentrations, likely due to concentrated floating organic particles. This phenomenon improves our understanding of marine ecosystem processes and has significant applications for fishing and tuna stock management.
Researchers at Brookhaven National Laboratory have discovered an important intermediate step in the artificial photosynthesis process using robust transition metal complexes like rhenium. By studying these reactions over short and long timescales, they found that two energetic metal complexes are involved in activating one CO2 molecule.
A double-blind study conducted in China found that chlorophyllin supplements reduced DNA damage related to aflatoxin exposure in healthy adults. The study showed a 55% reduction in aflatoxin damage, which could lead to a lower risk of liver cancer.
A new study using NASA's Sea-viewing Wide Field-of-View Sensor (SeaWiFS) reveals that El Niño dramatically reduced the amount of carbon dioxide normally released into the atmosphere by the equatorial Pacific Ocean. Chlorophyll levels also plummeted during this time, followed by a massive bloom of microscopic algae.
A new study reveals El Niño dramatically reduced carbon dioxide normally released by the equatorial Pacific Ocean, while also causing extreme biological effects. The research uses data from buoys, ships, and space instruments to monitor ocean productivity and CO2 levels.