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Carbon Dynamics of Aggregate‐Associated Organic Matter Estimated by Carbon‐13 Natural Abundance
A major factor controlling soil organic matter dynamics is believed to be the differing degrees of protection from decomposition afforded by the spatially hierarchical organization of soil aggregate… Expand
BIOSURFACTANTS: Their Identity and Potential Efficacy in the Biological Control of Zoosporic Plant Pathogens.
External hyphal production of vesicular-arbuscular mycorrhizal fungi in pasture and tallgrass prairie communities
External hyphae of vesicular-arbuscular mycorrhizal (VAM) fungi were quantified over a growing season in a reconstructed tallgrass prairie and an ungrazed cool-season pasture. In both sites, hyphal… Expand
Biosurfactant-enhanced removal of residual hydrocarbon from soil
Abstract An anionic monorhamnolipid biosurfactant produced by Pseudomonas aeruginosa was investigated for its potential to remove residual hexadecane from sand columns. In a series of column… Expand
Carbon cycling by arbuscular mycorrhizal fungi in soil-plant systems.
Arbuscular mycorrhizal fungi (AMF) play an important role in regulating carbon fluxes between the biosphere and the atmosphere. A recent study showed that live hyphae can turn over rapidly, in five… Expand
Electron Microscopy of Rhamnolipid (Biosurfactant) Morphology: Effects of pH, Cadmium, and Octadecane
A rhamnolipid biosurfactant produced by Pseudomonas aeruginosa ATCC 9027 is reported to increase the aqueous dispersion and biodegradation of petroleum hydrocarbons and to complex heavy metals. These… Expand
Effect of Rhamnolipids on the Dissolution, Bioavailability, and Biodegradation of Phenanthrene
Biodegradation rates for polycyclic aromatic hydrocarbons (PAH) in the environment are limited by their low solubility and sorption to solid surfaces. The purpose of this study was to quantify the… Expand
The American Slave: A Composite Autobiography
TeV Gamma-Ray Survey of the Northern Hemisphere Sky Using the Milagro Observatory
Milagro is a water Cerenkov extensive air shower array that continuously monitors the entire overhead sky in the TeV energy band. The results from an analysis of ~3 yr of data (2000 December-2003… Expand
Using landscape and depth gradients to decouple the impact of correlated environmental variables on soil microbial community composition
Simultaneously assessing shifts in microbial community composition along landscape and depth gradients allows us to decouple correlations among environmental variables, thus revealing underlying… Expand