Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 37 for “"fungal community"”.
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Belowground Fungal Community Change Associated with Ecosystem Development
… level; however, there are no studies describing fungal community change associated with long-term ecosystem development. To understand ecosystem development, the organisms responsible for shaping and driving these systems and their relationships with the vegetation and soil factors, it is …
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Assessing Arbuscular Mycorrhizal Fungal community composition and diversity across a land-use gradient in Eastern Washington prairies
… Washington’s native prairies. However, AMF community composition is significantly altered by the commercial agricultural practices used extensively in this region for over 100 years. The Eastern Washington University (EWU) Prairie Restoration Project aims to restore ~120 acres of farmland to …
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The Effects on Soil Fungal Community of Excluding select Above-ground Herbaceous Species in a Montane Longleaf Pine Savanna Restoration Area
… <p>My goals were to begin describing soil fungal communities of the longleaf pine at Sheffield Wildlife Management Area (SWMA) and describe changes to the fungal community after the removal of dominant plants in a longleaf savanna. I hypothesized the closed-forest would differ in fungal …
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The Fungal Connection: Characterizing the Ectomycorrhizal Community and Belowground Response to Restoration Treatments in Northern Mississippi.
… certain dominant plant taxa, knowledge of ECM fungal response is needed to ensure restoration efforts succeed. Using molecular methods, this research aimed to identify the ECM fungal community in a restoration project in northern Mississippi, comparing the belowground fungal community on plant …
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Linking The Functional Diversity Of Ectomycorrhizal Fungal Species To Soil Carbon And The Genetics Of A Foundational Tree Species
… plant host provides the vast majority of C for fungal growth. As a consequence, ECM fungi may provide one of the major pathways for C from trees to soils. Ectomycorrhizal fungal species produce extracellular enzymes that may degrade soil carbon and may differ in their ability to produce these …
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Herbicide management alters fungal biomass and community composition in Great Lakes coastal wetlands
… understand how herbicide management alters soil fungal communities. We assessed microbial and fungal biomass, fungal community composition, greenhouse gas emissions, soil physiological profiles, and decomposition rates. Fungicide treatments of the substrate induced respiration assays had …
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Investigating the lignocellulolytic gut microbiome of huhu grubs
… (lignocellulose) or cotton (cellulose). The gut fungal and bacterial community of huhu grubs was investigated using high-throughput sequencing and analysis techniques. Furthermore, the effects of a dietary switch on both fungal and bacterial communities was explored by switching huhu grubs …
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MYCOBIOME ANALYSIS OF TREES SELECTED BY BLACK-CAPPED CHICKADEES (Poecile atricapillus) AS NEST SITES
… nest trees are associated with specific fungal taxa and communities. Overall, I identified 201 fungal OTUs to species level. Among the fungal OTUs identified to phylum level, 706 (63%) belonged to Ascomycota, 284 (25%) Basidiomycota, four (0.35%) Mortierellomycota, two (0.2%) …
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Fostering Populations of Arbuscular Mycorrhizal Fungi Through Cover Crop Choices and Soil Management
… practices or amendments that can foster these fungal populations to increase crop and soil benefits, including yield. Cover cropping, the growing of non-food crops outside of regular crop produc-tion for the role of protecting and improving soil, has also been suggest-ed to influence both the …
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The impact of nutrient availability, substrate characteristics, and environmental conditions on wood decay and microbial decomposer communities
… manipulations with next-generation sequencing of fungal and bacterial communities, my dissertation explores the relative importance of, and potential interactions among, substrate characteristics, decomposer communities, and environmental conditions. In the second chapter, I explore how bark …
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Overcompensation of Ipomopsis aggregata following ungulate herbivory: getting to the root of it
… as arbuscular mycorrhizal fungi (AMF) and other fungal associates that could provide the necessary nutrients needed. A long-term study of the monocarpic biennial, scarlet gilia, Ipomopsis aggregata, showed that ungulate herbivory by mule deer and elk can result in a three-fold increase in plant …
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The fungal communities associated with Red-cockaded Woodpeckers and their excavations: descriptive and experimental evidence of symbiosis
… cavity-excavators and fungi involve multiple fungal species and are far more complex than previously imagined. Through a field survey, I showed that RCW excavations contain distinct communities of fungi, and propose two hypotheses to explain this result, (1) RCWs select trees with distinct …
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Allelopathy of marine macroalgae against microbial epibiosis
… quantitatively by waterborne algal metabolites. Fungal community pattern was also affected in the presence of algae, but with a different specificity of algae. Furthermore, algal extracts exhibited a distinct pattern of activities against epiphytic diatoms.
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Functional diversity and life history traits of arbuscular mycorrhizal fungi in disturbed soils
… Most (70%) of the isolated species in a native fungal community were as effective at promoting growth as commercial isolates. The net benefit of native colonizing fungi likely was positive, since the majority of the fungi colonizing two-year-old apple and grape in the field also were effective …
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The Evaluation of the Endophytic Mycobiome of Magnolia grandiflora
… and internally occupied by an assorted microbial community. This colonized community is part of the plant’s microbiome and consists of bacteria, protists and fungi. Asymptomatic microbes occupying internal tissues of plants are called endophytes. Fungal endophytes are of major importance because …
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Switchgrass Yield, Nutrient Uptake, And Rhizosphere Microbial Community Composition As Affected By Cultivar And Soil Fertility
… sequencing technology to examine bacterial and fungal community composition as a function of switchgrass cultivar selection as well as N and P fertility. The first experiment evaluated biomass production and N removal in switchgrass and mixed native perennials as a function of harvest regime …
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Linking genotype to phenotype: a modelling framework for investigating individual and interacting mycelia
… of complexity in individual and interacting fungal mycelia. A conceptual model identifying the minimal rule set responsible for complexity in terms of exhibited growth patterns is presented. The theoretical results replicate observed colony forms on agar and demonstrate that phenotype is …
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Factors Affecting Denitrification Potential and the Microbial Ecology of Established Bioretention Cells Across the Eastern Mid-Atlantic Region
… denitrification potential, and microbial community structure within the soil medium. We found the greatest denitrifier populations and denitrification potential in the upper layer of the soil medium, which does not coincide with the internal water storage zone that is engineered to harbor …
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Physical, chemical and biological controls on the origin, crystallization and dissolution of human kidney stones
… that entomb a well-preserved bacterial and fungal community during multiple repeated cycles of crystallization, dissolution and recrystallization. An estimated >80% of any given stone has been dissolved and reformed in vivo and the extensive diagenetic alteration that takes place establishes …
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