Pseudobulbs: sink for exogenous nitrogen in epiphytic orchids
Pseudobulbs, which are somewhat enlarged or thickened succulent stems, are common in epiphytic orchids. Nitrogen can be transported from old to young pseudobulbs and between leaves and pseudobulbs......»»
Critically endangered Guam tree contributes to global leaf research
The intricate leaf design of Guam's Serianthes nelsonii tree was used as a model to contribute to the global goal of understanding how a plant leaf functions, and the results were published in the March issue of the journal Nitrogen......»»
Rhythmic gene expression in plants is crucial for symbiosis with nutrient-providing bacteria, study finds
Legumes thrive in low-nitrogen environments by partnering with rhizobia, soil bacteria that convert atmospheric nitrogen into ammonium, a usable form for the plants. These beneficial bacteria are housed in root nodules formed on legume roots......»»
From roots to leaves: The nitrogen connection to photosynthetic efficiency
Photosynthesis efficiency in plants is influenced by the type of nitrogen absorbed. Ammonium (NH4+) and nitrate (NO3-) are the primary nitrogen sources, each affecting plant physiology differently. Variations in leaf anatomy, such as cell wall thickn.....»»
Study highlights the benefits of mixing cover crops
A University of Kentucky study titled "Productivity benefits of cereal-legume cover crop mixtures under variable soil nitrogen and termination times" suggests that mixing cover crops is a beneficial strategy for modern agriculture......»»
Forests endure as carbon sink despite regional pressures, new research reveals
Despite facing regional threats like deforestation and wildfires, the world's forests continue to be a powerful weapon in the fight against climate change. A new study reveals these vital ecosystems have consistently absorbed carbon dioxide for the p.....»»
Study: Targeted home systems to remove PFAS more cost-effective than system-wide solutions
PFAS, the potentially cancer-causing chemicals known as "forever chemicals," have become an increasing concern in home drinking water. Solutions to reduce the risk of exposure range from mandated municipal-level water treatment to under-the-sink home.....»»
Scientists found a nearly indestructible moss that may survive on Mars
A nearly indestructible moss that can survive bursts of gamma rays and liquid nitrogen may be one of the keys to Mars colonization, scientists have … The post Scientists found a nearly indestructible moss that may survive on Mars appeared first.....»»
Nitrogen-using bacteria can cut farms’ greenhouse gas emissions
Nitrogen fertilizers get converted to nitrous oxide, a potent greenhouse gas. Enlarge (credit: Timothy Hearsum) Fritz Haber: good guy or bad guy? He won the Nobel Prize in Chemistry in 1918 for his part in developing the.....»»
Tropical forest resilience to seasonal drought linked to nutrient availability
Tropical forests are highly productive ecosystems, accounting for nearly half of the global forest carbon sink. If tropical forests can no longer remove carbon dioxide from the atmosphere, the effects of climate change may become even more severe......»»
How an iPad just set a Geekbench record
In an experiment, the latest iPad Pro with M4 was cooled using liquid nitrogen to achieve minor overclocking......»»
Researchers unlock vital insights into metal-nitrogen-carbon catalysts" reaction mechanism
A team of researchers has made significant strides in understanding metal-nitrogen-carbon (M-N-C) catalysts, offering alternatives to expensive platinum-group-metal (PGM) catalysts and a pathway to a greener future......»»
Nitrogen pollution is less harmful to mixed forests, study shows
In a study published in the journal Plant and Soil, researchers from the Institute of Applied Ecology of the Chinese Academy of Sciences have shown that mixed larch and deciduous forests are more resistant to soil acidification—a decrease in soil p.....»»
Study finds consistent decline in nitrogen oxides emissions from human activities in China since 2020
Nitrogen oxides (NOx) form aerosols and ozone in the atmosphere and are significant contributors to air pollution and climate change. China is the largest emitter, yet accurate and timely information on NOx emissions in China has been lacking since 2.....»»
New rhizobia-diatom symbiosis solves long-standing marine mystery
Nitrogen is an essential component of all living organisms. It is also the key element controlling the growth of crops on land, as well as the microscopic oceanic plants that produce half the oxygen on our planet. Atmospheric nitrogen gas is by far t.....»»
Habitats much more vulnerable for nitrogen deposition than previously thought
Nitrogen deposition is one of the four main pressures on nature in Europe. Many of the Natura 2000 sites suffer from an excessive input of ammonium and nitrate from farming, industry, traffic and households, leading to the disappearance of many plant.....»»
Mangrove blue carbon at higher risk of microplastic pollution
Earth's oceans and coastal ecosystems are a major sink for carbon storage, known as blue carbon. Sequestration of carbon is vitally important in the fight against climate change as it 'locks away' this molecule, alleviating pressure on greenhouse gas.....»»
Sink to source: Does what we put into our plumbing end up back in the water supply?
When you see an advertisement for a detergent promising to brighten your clothes, something called a fluorescent whitening compound, or optical brightener, is probably involved. Such material absorbs UV light and emits visible blue light via fluoresc.....»»
Researchers reveal oceanic black carbon sink effect driven by seawater microdroplets
Pyrogenic carbon is widely produced during the incomplete combustion of biomass and fossil fuels on land. About one-third of pyrogenic carbon is exported to the ocean by rivers, and thereinto, the refractory fraction becomes the source of oceanic bla.....»»
Study finds patterns of crop-specific fertilizer-nitrogen losses, opportunities for sustainable mitigation
Nitrogen fertilizers play an essential role in ensuring global food security. However, the applied fertilizer-nitrogen, particularly that exceeding crop demand and soil N retention capacity, can potentially escape into the environment and lead to a v.....»»
Northern permafrost region emits more greenhouse gases than it captures, study finds
Permafrost underlies about 14 million square kilometers of land in and around the Arctic. The top 3 meters contain an estimated 1 trillion metric tons of carbon and 55 billion metric tons of nitrogen. Historically, the northern permafrost region has.....»»