Articles tagged with Nitrogen Fixation
A new study reveals that ocean acidification can overwhelm benefits to nitrogen-fixing bacteria, hampering essential services for marine life. Trichodesmium cyanobacteria, which contributes up to 50% of marine nitrogen fixation, shows negative impacts under acidic conditions and with limited iron availability.
A massive atlas of plant and bacterial proteins has been published, providing unprecedented detail on the molecular controls of nitrogen fixation symbiosis. The study, led by University of Wisconsin-Madison researchers, reveals the interplay of proteins in rhizobia colonization of root nodules in the model legume Medicago truncatula.
Researchers have discovered how cyanobacteria create patterns to optimize nitrogen fixation, a process vital for life. The patterns allow cells to distribute fixed nitrogen efficiently, enabling complex life forms like humans to survive.
Scientists at the John Innes Centre have identified a critical protein, CNGC15s, that facilitates calcium movement into plant cell nuclei. This allows plants to initiate cellular processes necessary for bacterial accommodation and nitrogen fixation.
Researchers propose that plants 'decide' to thrive in certain environments, influencing biome productivity and composition. Nitrogen-fixing trees, which produce their own fertilizer, flourish in tropical zones but struggle in temperate forests, highlighting the importance of plant strategy in ecosystem evolution.
Researchers at Chapman University found tremendous diversity in how nitrogen-fixing plants regulate their relationships with soil bacteria. Plants were grown across a gradient of nitrogen availability, revealing that some species can turn off nitrogen fixation under high soil conditions, while others do not regulate it.
Researchers discovered that the Earth's cyclic wobble affects the production of fixed nitrogen, a nutrient crucial for marine organisms. The study reveals that precession-driven upwelling brings nitrogen-poor water to the surface, where blue-green algae convert it into biologically usable forms.
Researchers aim to miniaturize and automate nitrogen fixation, making it available only when needed. By placing the apparatus in plant cells, they hope to reduce energy requirements and environmental problems associated with current methods.
Three projects aim to revolutionise farming methods by enabling crops to fix their own nitrogen, reducing the need for artificial fertilisers. Researchers will search for a lost bacterium with special properties, create synthetic biological modules to produce fertiliser, and engineer beneficial relationships between plants and microbes.
Researchers at UNIST have created a novel method for direct nitrogen fixation using ball-milling graphite in the presence of nitrogen gas. This process enables the production of nitrogen-doped graphene nanoplatelets, which can enhance energy conversion efficiency in solar cells and fuel cells.
A new study in Nature confirms an improved method for measuring nitrogen fixation in the ocean, revealing rates that are between 62 and 600 percent higher than previously measured. The findings leave a gap in the nitrogen budget due to incomplete knowledge of microorganisms responsible for these processes.
A marine microorganism has been found to have a remarkably reduced set of genes, allowing it to fix nitrogen from the atmosphere into a form available to other organisms. This process fertilizes the oceans, controlling biological productivity and affecting carbon dioxide absorption.
New data from a 10,000-kilometer cruise reveals that iron availability significantly controls the input of fixed nitrogen into the Atlantic Ocean. This finding is crucial for understanding global climate patterns and their potential implications on carbon dioxide sequestration.
Researchers at Caltech have discovered that methane-consuming archaea are actively fixing nitrogen and sharing it with their bacterial neighbors. This finding may help explain the discrepancy between known sources and sinks of fixed nitrogen in the global nitrogen cycle.
Researchers found that diatoms, a type of phytoplankton, host nitrogen-fixing cyanobacteria, contradicting previous assumptions that blue-green algae were the primary drivers. The study reveals an important mechanism for regulating atmospheric carbon dioxide and climate.
A new study published in PNAS reveals that Trichodesmium separates its carbon and nitrogen fixation processes by time, with the process switching between the two every day. The stunning images obtained using advanced imaging technology show where the fixed nitrogen is stored within a cell and how it changes over time.
A new theory on nitrogen fixation in ecosystems may help scientists better predict the effects of climate change. The researchers found that temperature constraints and phosphorus acquisition abilities play a crucial role in shaping the distribution of nitrogen-fixing plants across global ecosystems.
Scientists have explained the enigmatic distribution of nitrogen-fixing trees by recognizing the role of temperature and phosphorus abundance. In temperate forests, the high cost of producing the enzyme nitrogenase offsets the benefit of nitrogen fixation despite low-nitrogen soils.
A team of researchers led by UC Davis faculty member Benjamin Houlton has resolved a longstanding paradox in the plant world. They found that temperature and phosphorus abundance play key roles in determining the presence of nitrogen-fixing tree species in temperate and tropical forests.
Scientists found that tree canopy levels affect nitrogen fixation rates in feather mosses, regulating forest productivity and carbon consumption. High nitrogen deposition from pollution reduces moss nitrogen fixation rates.
Research reveals that forest canopies influence nitrogen fixation rates by controlling the amount of nitrogen deposited on mosses. High canopy nitrogen levels reduce nitrogen fixation, while low levels increase it.
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.
A recent study found that pesticides block a key receptor in soil bacteria, disrupting natural nitrogen-fixing communications. This results in lower crop yields or significantly delayed growth. The research highlights the importance of preserving natural symbiotic relationships between crops and soil bacteria.
Researchers found that the Pacific and Indian oceans receive twice as much nitrogen fixing as previously thought, indicating a more stable global picture of nitrogen fixation than initially assumed. This discovery suggests that major fluctuations in ocean nitrogen are unlikely and may be mitigated by climate change.
Researchers found that unicellular organisms are fixing nitrogen at rates up to three times higher than previously reported for the Pacific Ocean. This influx of nitrogen has significant implications for global carbon sequestration and climate regulation.
Researchers aim to understand the functions of Nostoc punctiforme's 7,000 genes and its potential to domesticate crop plants for nitrogen fixation. They plan to study gene expression and environmental responses to improve the process.
Scientists have found a new source of nitrogen-fixing bacteria in the Pacific Ocean near Hawaii, which could contribute significantly to ocean nitrogen fixation. The newly discovered bacteria are active at greater depths and longer time periods than known marine cyanobacteria, with potential implications for global warming.
Researchers find nitrogen-fixing cyanobacteria in Pacific Ocean water samples near Hawaii, contributing significantly to ocean nitrogen fixation. The newly discovered bacteria are more abundant and active than previously thought, with potential implications for global warming.
A team from Michigan State University has found a new source of nitrogen fixation in spirochetes, corkscrew-shaped bacteria abundant in termite guts. This discovery opens up new possibilities for nitrogen availability and highlights the importance of microbes in animal nutrition and health.