Frederick M. Rothwell

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Spectrophotometric, chromatographic, and ion-exchange procedures were used to follow microbial transformation and degradation of lignin-related compounds during incubation in liquid culture. Analyses of solvent extracts from fermentation media showed that selected mine soil microorganisms were able to modify one or more of the structural components of(More)
Ten seedlings were collected from one year old shingle oak grown in fumigated and fertilized seedbeds at a tree nursery in western Kentucky. Root material from the seedlings was washed free of soil and small segments stained for microscopic analysis of mycorrhizae development. External morphology of root segments was typically ectomycorrhizal, with(More)
The external mycelium of a vesicular-arbuscular mycorrhizal (VAM) fungus was effective in aggregating a sandy loam minesoil. The polysaccharide nature of the soil binding agent on hyphal surfaces and on the surfaces of sand particles in contact with the hyphae within the aggregate was demonstrated with the periodic acid-Schiff reagent staining reaction. A(More)
The establishment and interrelationships of microorganisms with soil and plant processes during reclamation are greatly influenced by the composition of the planting medium and vegetation practices. While in some instances the parent material may be used as the vegetation medium, the practice of topsoiling, particularly the direct haul method, may be(More)
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