That's because, «screening microbial extracts
from soil is thought to be a tapped - out approach,» said Richard Ebright, a scientist at the Waksman Institute of Microbiology at Rutgers.
(Evapotranspiration is the process by which water is transferred
from soil and groundwater to the atmosphere through plant transpiration — loss of water through foliage — and soil evaporation.)
In the traditional view of this symbiosis, the plants photosynthesize and provide carbon to the fungi in return for nutrients that the fungi take up
from the soil (I say traditional because mycorrhizal fungi can also provide other benefits to their hosts such as helping them deal with summer water stress and protecting them from pathogens that attack their roots).
However, there is strong evidence showing that fungi produce a large diversity of enzymes and chelating compounds that allow them to capture nutrients
from the soil that are not normally accessible to plants (chelating compounds bind metals into different forms in the soil to prevent their interference with uptake of other nutrients).
«For years, scientists at the APS have used these techniques to deepen our understanding of a wide variety of materials,
from soil samples to new materials to biological matter,» said Kamel Fezzaa from sector 32 - ID at the APS.
Live reports
from the soil grain — the promise and challenge of microbiosensors.
«Kirk routinely assumes the responsibility of liaison between cooperating programs and is responsible for data collections that range
from soil sampling to plant biomass sampling to taking physiological measurements with delicate instrumentation,» Xue said.
The fungi colonize root cells, gaining access to carbon supplied by the plant, while at the same time mobilizing mineral nutrients
from the soil, including phosphorus, to be used by the plant.
This book provides comprehensive, current scientific and applied practical knowledge on vegetable grafting, a method gaining considerable interest that is used to protect crops
from soil - borne diseases, abiotic stress and to enhance growth / yield.
The Harrison lab also studies how plants find and take up phosphorus
from the soil when they do not have these symbiotic relationships with fungi.
Rhizobia - hosting plants, mostly in the legume family, recruit rhizobia
from the soil to infect their roots, forming specialized nodules of root tissue to house the bacteria and provide them with sugars as a food resource.
This loss of water to the atmosphere is important for plants to pull water
from the soil, forming a suction force like when you drink from a straw, but too much water loss in the desert can be deadly.
Evidence from carbon isotope records
from both soil carbonates [18]--[20] and biomarkers (n - alkanes) extracted from deep - sea sediments [21] provide clear evidence of a progressive vegetation shift from C3 (∼ trees and shrubs) to C4 (∼ tropical grasses) plants during the Plio - Pleistocene.
Most antibiotic resistance probably comes
from soil bacteria, and the genes they carry genes can readily be disseminated from one species of bacteria to another on plasmids.
Specificity in Arabidopsis thaliana recruitment of root fungal communities
from soil and rhizosphere — Hector Urbina — Fungal Biology
With many sources of carbon coming
from the soil, such as plant roots and microorganisms, researchers need to distinguish those sources to get accurate measurements.
Ebright and his colleagues developed a new antibiotic
from a soil sample taken in Italy.
Professor Maria Harrison has received part of a $ 1.2 million grant from the Department of Energy to support the development of biosensors to track and measure the movement of phosphate
from soil fungi into plant cells in real time.
Stable isotopic compositions — variants of particular chemical elements — of such remains, recovered
from soil and lake sediment, may help us better understand climate change over a long span of time.
Most plants suck up nitrogen
from the soil through their roots.
Warmer air also causes more water to evaporate
from the soil.
So just as some observers have feared, warming temperatures could release formerly inert carbon
from the soil.
Was a gasket around the stem used, to avoid getting gas
from the soil?
When this occurs, the uranium drops out of the water supply and can be recovered
from the soil.
But according to a new study, they also take up more toxic materials
from the soil.
Bacteria can also mine critical minerals
from the soil.
Where archeologists exhume secrets
from the soil, molecular archeologists uncover secrets lying inside human remains.
I've seen only the summary — did they eliminate methane
from soil microbes, somehow?
It is listed in the Book the Weather Makers by Tim Flannery (a recent release) where he details on page 196 the possibility of the Amazon rain forest drying out and returning to the atmosphere huge quantities of CO2 released
from the soil.
«To better compare the GPR signal against the measured root values
from the soil cores, radar profiles were sectioned with the most signal concentrated on the upper soil layer for further analysis,» Dong said.
The study looked at red wines, except from two areas in Washington where only white wines were produced, because they are made with the skin of grapes where arsenic that is absorbed
from soil tends to concentrate.
Environment Canada researcher Derek Muir is studying how that changes the release of mercury
from the soil into streams and lakes.
«This is a new mechanism for bringing carbon
from the soil into the air.
«Rain cleans the atmosphere; it hadn't occurred to me to think of rain as a mechanism to produce solid particles
from soil.»
More than a year of intensive chemical analysis showed that the particles were definitely composed of organic matter
from the soil.
Scientists have, for the first time, traced the nanoparticles taken up
from the soil by crop plants and analysed the chemical states of their metallic elements.
«You start with the world where you and I are getting an exposure from the sun,
from the soil we walk on, from the brick in our house that on average is about 400 millirems a year — which is dangerous,» said Tom Lenhart, a former member of the federal - state Interagency Steering Committee on Radiation Standards.
But although it is more likely that they were transferred
from the soil to human pathogens, the team can't rule out that it was the other way around.
The researchers hope that what they are learning
from soil bacteria will help identify ways to reduce gene sharing among infectious bacteria, slowing the spread of drug - resistant superbugs, said senior author Gautam Dantas, PhD, assistant professor of pathology and immunology.
This type of cotton has been genetically engineered to produce a toxin
from the soil bacterium Bacillus thuringiensis.
Soyuz lifting off perfectly
from the soil here in her new home in French Guiana, beginning her mission number 1777.]
When nitrogen isotopes change in response to variation in winter precipitation over the past 2,000 years, this signature is transferred
from the soil to plant leaves to insect to bat and ultimately guano.
In fact, they found that in the Great Plains states up to half of light absorption is due to organic matter, or «brown carbon» from burning fossil fuels and
from soil that mixes in with falling snow.
Plants such as peas and beans acquire Rhizobia bacteria
from the soil, which can extract nitrogen from the air and put it into a form that the plant can use.
The team first isolated genes
from the soil that originated from Proteobacteria, a group of bacteria that's usually disease - causing, hypothesizing that these organisms might be most likely to share genes with pathogens.
The research, published in Nature Geoscience and led by researchers from the Université Libre de Bruxelles, the University of Exeter, Laboratoire des Sciences du Climat et l'Environnement, the University of Hawai'i and ETH Zürich, has for the first time shown that increased leaching of carbon
from soil, mainly due to deforestation, sewage inputs and increased weathering, has resulted in less carbon being stored on land and more stored in rivers, streams, lakes, reservoirs, estuaries and coastal zones — environments that are together known as the «land - ocean aquatic continuum».
To better understand the microbial diversity of these environments, researchers from the University of Manitoba isolated AAP strains
from soil samples at four different sites within the Central Gold Mine tailings.
«We were happy to find that antibiotic resistance genes
from soil bacteria generally aren't poised to jump suddenly into pathogens,» Dantas said.
The findings suggest that most genes
from soil bacteria are not poised to contribute to antibiotic resistance in infectious bacteria.
In contrast, there was almost no change in so - called background radiation, which naturally emanates
from soil, rocks and other environmental substances.