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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Citation (1) Contacts Kurt P Kowalski U.S. Geological Survey - ScienceBase Ecosystems U.S. Geological Survey Cheryl L Morrison More... Categories Data Release - Revised (1) Tag Types Theme (6) Place (5) USGS Scientific Topic Keyword (4) Harvest Set (6) Tag Schemes USGS Thesaurus (6) None (3) Geographic Names Information System (1) ISO 19115 Topic Category (5) Marine Realms Information Bank (MRIB) keywords (3) Common geographic areas (3) Coastal and Marine Ecological Classification Standard (1) More... View Results as: JSON ATOM CSV

Data collected to support research on grass crop growth promotion and biostimulation by endophytic bacteria These data show grass crop and model species response to toxic chemicals (Arsenic (As)) and humic acids. Experiments were performed by collaboration between the U.S. Geological Survey, Rutgers University, and Rey Juan Carlos University. A series of individual experiments investigated beneficial effects of endophytic bacteria on grass crop growth and resilience to known plant toxicity. Categories: Data; Tags: Ecology, Genetics, North America, USGS Science Data Catalog (SDC), bacteria, All tags... biostimulation, biota, chemical toxicity, endophytes, endophytic microbes (bacteria, fungi), environment, grass crops, symbiosis, vegetation, Fewer tags Host feeding ecology and trophic position significantly influence isotopic discrimination between a generalist ectoparasite and its hosts: implications for parasite-host trophic studies Despite being one of the most prevalent forms of consumerism in ecological communities, parasitism has largely been excluded from food-web models. Stable isotope analysis of consumers and their diets has been widely used in the study of food-webs for decades. However, the amount of information regarding parasite stable isotope ecology is limited, restricting the ability of ecologists to use stable isotope analysis to study parasites in food-webs. This study took advantage of distinct differences in the feeding ecology and trophic position of different species of fish known to host the same common micropredatory gnathiid isopod, to study the effects of host stable isotope ecology on that of the associated micropredator.... Categories: Data; Tags: Eastern Caribbean, Ecology, Shallow/Mesophotic Coral Reef Biota, St John, United States Virgin Islands, Stable Isotopes, All tags... USGS Science Data Catalog (SDC), Virgin Islands of the United States, biota, coral reefs, food web, parasites, stable isotope analysis, symbiosis, Fewer tags Arbuscular mycorrhizal fungi in remnant and reconstructed prairies in Minnesota and Iowa, 2019 (ver. 2.0, April 2022) This data record contains arbuscular mycorrhizal fungi (AMF) operational taxonomic unit (OTU) occurrences with native prairie plant species roots collected from paired remnant and reconstructed prairies, as well as soil physical and chemical property data from these field sites in Minnesota and Iowa. Categories: Data, Data Release - Revised; Tags: Iowa, Jasper County, Kandiyohi County, Meeker County, Minnesota, All tags... Otter Tail County, Swift County, Traverse County, USGS Science Data Catalog (SDC), biota, fungi, grassland ecosystems, plants (organisms), species diversity, symbiosis, vegetation, Fewer tags Histochemical study of nitrogen-transfer endosymbiosis Plant roots have the best-understood mutualisms with microbes, but leaf and bract cell endosymbiosis have not been previously reported. Leaf and bract cells of more than 30 species in 18 families of seed plants were surveyed for the presence of intracellular bacteria and several experiments were designed to find and analyze nutrient exchanges between bacteria and plant cells. This dataset contains the results of 1) histochemical analyses to detect hormones, superoxide, and nitrogenous chemicals around bacteria within plant leaf and bract cells, 2) experiments to assess the differential absorption of isotopic nitrogen into plants, and 3) genetic analysis of bacteria isolated from plant material. Categories: Data; Tags: Botany, Ecology, USGS Science Data Catalog (SDC), bacteria, bacteria, All tags... biota, cell biology, ecology, flowering plants, laboratory experiments, microbes, nitrogen, plants, plants (organisms), symbiosis, terrestrial flowering plants, vascular plants, vascular plants, Fewer tags Molecular characterization of deep-sea bathymodiolin mussels and gill symbionts from the U.S. mid-Atlantic margin These datasets provide geographic sampling information for Bathymodiolin mussels collected from three cold seep sites off the mid-Atlantic U.S. coast, northwestern Atlantic Ocean. Also included are GenBank accession numbers for mitochondrial gene sequences (COI and ND4) and sequence alignments (File1_mussels) used in phylogenetic analyses for molecular identification of the mussel species. Additionally, GenBank accession numbers for the BioProject containing 16S metabarcoding sequence data used to identify gill symbionts in mussels are provided, along with supporting details for the analyses performed on the 16S metabarcoding data (File2_Symbionts). Categories: Data; Tags: Aquatic Biology, Biodiversity, Genetics, Mid Atlantic, Seep Canyon, All tags... USGS Science Data Catalog (SDC), benthic ecosystems, biodiversity, biogeography, biogeography, biota, genetic diversity, microbes, population and community ecology, symbiosis, Fewer tags Native and Invasive Species Plant Growth and Mortality in Growth Media Inoculated with Bacteria Found on Phragmites From New Jersey (2016) Bacteria were isolated from seeds of non-native Phragmites australis (haplotype M) then representatives were evaluated for their capacities to become intracellular in root cells, and their effects on: 1.) germination rates and seedling growth, 2.) susceptibility to damping-off disease, and 3.) mortality and growth of competitor plant seedlings (dandelion (Taraxacum officionale F. H. Wigg) and curly dock (Rumex crispus L.)). The experiments included the following assessments of Phragmites-associated bacteria (Pseudomonas spp, strains Sandy LB4 (Pseudomonas fluorescens) and West 9 (Pseudomonas sp.)): capacity for plant growth promotion (using Poa annua seeds), Poa annua and Phragmites australis seed germination and... Categories: Data; Types: Citation; Tags: Bosea thiooxidans, Ecosystem functions, Fusarium oxysporum, Microbacterium oxydans, Microbiology, All tags... Phragmites australis, Poa annua, Pseudomonas fluorescens, Rumex crispus, Sandy Hook, New Jersey, Sea Bright, New Jersey, Taraxacum officionale, USGS Science Data Catalog (SDC), bacteria, biota, invasive species, symbiosis, vascular plants, wetland ecosystems, Fewer tags