Search Results - "Dawson, Jeffrey O."

Frankia Diversity in Host Plant Root Nodules Is Independent of Abundance or Relative Diversity of Frankia Populations in Corresponding Rhizosphere Soils by Ben Tekaya, Seifeddine, Guerra, Trina, Rodriguez, David, Dawson, Jeffrey O, Hahn, Dittmar

“…Actinorhizal plants form nitrogen-fixing root nodules in symbiosis with soil-dwelling actinobacteria within the genus , and specific taxonomic clusters…”
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Gas Exchange, Water Use Efficiency, and Biomass Partitioning among Geographic Sources of Acer saccharum Subsp. saccharum and Subsp. nigrum Seedlings in Response to Water Stress by Hauer, Richard J, Wei, Hongxu, Koeser, Andrew K, Dawson, Jeffrey O

“…Responses to water stress were measured for sugar maple ( subsp. Marshall) sources from Oklahoma (Caddo sugar maple), Missouri, Tennessee, Ontario, and a black…”
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Frankia Populations in Soil and Root Nodules of Sympatrically Grown Alnus Taxa by Pokharel, Anita, Mirza, Babur S, Dawson, Jeffrey O, Hahn, Dittmar

“…The genetic diversity of Frankia populations in soil and in root nodules of sympatrically grown Alnus taxa was evaluated by rep-polymerase chain reaction (PCR)…”
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Diversity of Frankia Populations in Root Nodules of Geographically Isolated Arizona Alder Trees in Central Arizona (United States) by Welsh, Allana K, Dawson, Jeffrey O, Gottfried, Gerald J, Hahn, Dittmar

“…The diversity of uncultured Frankia populations in root nodules of Alnus oblongifolia trees geographically isolated on mountaintops of central Arizona was…”
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Melanin biosynthesis by Frankia strain CeI5 by Yuan, Wenlin, Burleigh, Stephen H., Dawson, Jeffrey O.

“…Many Frankia strains are pigmented and presumed to produce melanin. However, melanin biosynthesis has yet to be rigorously characterized in Frankia. This study…”
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Foliar‐Nitrogen and Phosphorus Resorption Patterns Differ among Nitrogen‐Fixing and Nonfixing Temperate‐Deciduous Trees and Shrubs by Stewart, J. Ryan, Kennedy, Gregory J., Landes, Reid D., Dawson, Jeffrey O.

“…Nutrient resorption from senescing leaves enables plants to conserve nutrients. Low foliar‐nitrogen (N) resorption levels have been estimated in past studies…”
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Growth responses of introduced Frankia strains to edaphic factors by Samant, Suvidha, Dawson, Jeffrey O, Hahn, Dittmar

“…AIMS: A considerable amount of information is available on root nodule formation of the nitrogen fixing actinomycete Frankia and its host plants; however,…”
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Could microbial symbionts of arthropod guts contribute significantly to nitrogen fixation in terrestrial ecosystems? by Nardi, James B., Mackie, Roderick I., Dawson, Jeffrey O.

“…Fixed nitrogen is a limiting nutrient in most terrestrial ecosystems and has been assumed to be supplied almost entirely by free-living bacteria as well as by…”
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Abundance and Relative Distribution of Frankia Host Infection Groups Under Actinorhizal Alnus glutinosa and Non-actinorhizal Betula nigra Trees by Samant, Suvidha, Huo, Tian, Dawson, Jeffrey O, Hahn, Dittmar

“…Quantitative polymerase chain reaction (qPCR) was used to assess the abundance and relative distribution of host infection groups of the root-nodule forming,…”
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Recent advances in the biogeography and genecology of symbiotic Frankia and its host plants by Benson, David R, Dawson, Jeffrey O

“…Molecular phylogenetic approaches have begun to outline the origin, distribution and diversity of actinorhizal partners. Geographic isolation of Frankia and…”
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Growth responses of indigenous Frankia populations to edaphic factors in actinorhizal rhizospheres by Samant, Suvidha S., Dawson, Jeffrey O., Hahn, Dittmar

“…Quantitative PCR (qPCR) was used to follow population dynamics of indigenous Frankia populations in bulk soil, in leaf-litter-amended soil and in the…”
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Sybr Green- and TaqMan-Based Quantitative PCR Approaches Allow Assessment of the Abundance and Relative Distribution of Frankia Clusters in Soils by Ben Tekaya, Seifeddine, Ganesan, Abirama Sundari, Guerra, Trina, Dawson, Jeffrey O, Forstner, Michael R J, Hahn, Dittmar

“…The nodule-forming actinobacterial genus can generally be divided into 4 taxonomic clusters, with clusters 1, 2, and 3 representing nitrogen-fixing strains of…”
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Nitrogenase Activity and Nodule Biomass of Cowpea (Vigna unguiculata L. Walp.) Decrease in Cover Crop Mixtures by Wortman, Sam E., Dawson, Jeffrey O.

“…Legume cover crops are often used to build soil nitrogen (N) fertility and there is increasing interest in cover crop mixtures. The objective of this…”
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Nitrogen provisioned and recycled by cover crops in monoculture and mixture across two organic farms by Holmes, Ashley A., Thompson, Ashley A., Lovell, Sarah T., Villamil, Maria B., Yannarell, Anthony C., Dawson, Jeffrey O., Wortman, Sam E.

“…Cover crops can supply and recycle soil nitrogen (N) in agroecosystems. With increasing interest in cover crop mixtures, farmers have questions about how N…”
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Nitrogen Fertility Island Stability around Prosopis glandulosa Sprouts after Mechanical Shrub Control in a Degraded Grassland by Dawson, Jeffrey O., Koeser, Andrew, Gottfried, Gerald, Ffolliott, Peter

“…We examined the effects of mechanical chopping to reduce shrub cover for grassland restoration in a semi-desert environment near Douglas, Arizona, USA…”
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Growth changes of eighteen herbaceous angiosperms induced by Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) in soil by Hagan, Frank L, Koeser, Andrew K, Dawson, Jeffrey O

“…Study objectives were to describe and quantify growth responses (tolerance as shoot and root biomass accumulation) to soil-applied…”
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Deforestation and managerial scales in Côte d'Ivoire by Kouadio, Bertin Yao, Dawson, Jeffrey O., Mendoza, Guillermo A.

“…We provide evidence that a factor contributing to the specific patterns of deforestation in Côte d'Ivoire is the set of spatial units of management used to…”
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Enhancing Establishment of White Oak and American Hazelnut Enrichment Plants in a Mesic Forest Using Understory Removal and Group Selection by Dreisilker, Kurt, Koeser, Andrew, Dawson, Jeffrey O.

“…In the absence of periodic disturbance, primarily fire, many oak-dominated woodlands in the Eastern and Midwestern United States are transitioning to sugar…”
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Soil Magnetic Susceptibility: A Quantitative Proxy of Soil Drainage for Use in Ecological Restoration by Grimley, David A, Wang, Jing-Shu, Liebert, Derek A, Dawson, Jeffrey O

“…Flooded, saturated, or poorly drained soils are commonly anaerobic, leading to microbially induced magnetite/maghemite dissolution and decreased soil magnetic…”
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Restoration Considerations of Large Woody Debris in the Elwha River Nearshore, Olympic Peninsula, Washington by Rich, Samantha L., Shaffer, J. Anne, Fix, Miranda J., Dawson, Jeffrey O.

“…Large Woody Debris (LWD) is a critical component of Pacific Northwest marine ecosystems and of growing interest for restoration. This study adds important…”
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