- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Genomics and Phylogenetic Studies
- Algal biology and biofuel production
- Geochemistry and Elemental Analysis
- Aquatic Ecosystems and Phytoplankton Dynamics
- Bacterial Identification and Susceptibility Testing
- Geological Modeling and Analysis
- Polar Research and Ecology
- Methane Hydrates and Related Phenomena
- Oceanographic and Atmospheric Processes
- Polyamine Metabolism and Applications
- Environmental DNA in Biodiversity Studies
- Evolution and Genetic Dynamics
- Protist diversity and phylogeny
- Marine and fisheries research
- Probiotics and Fermented Foods
- Education Systems and Policy
- Plant Pathogens and Fungal Diseases
- Plant nutrient uptake and metabolism
Oregon State University
2021
Oklahoma State University
2016-2019
Survival and growth of the anaerobic gut fungi (AGF; Neocallimastigomycota) in herbivorous necessitate possession multiple abilities absent other fungal lineages. We hypothesized that horizontal gene transfer (HGT) was instrumental forging evolution AGF into a phylogenetically distinct gut-dwelling lineage. The patterns HGT were evaluated transcriptomes 27 strains, 22 which isolated sequenced this study, 4 genomes broadly covering breadth diversity. identified 277 incidents transcriptomes,...
Many freshwater lakes undergo seasonal stratification, where the formation of phototrophic blooms in epilimnion and subsequent sedimentation induces hypoxia/anoxia thermocline hypolimnion. This autochthonously produced biomass represents a major organic input that impacts entire ecosystem. While limnological aspects this process are fairly well documented, relatively little is known regarding microbial community response to such events, especially deeper anoxic layers water column. Here, we...
Algae encompass a wide array of photosynthetic organisms that are ubiquitously distributed in aquatic and terrestrial habitats. Algal species often bloom ecosystems, providing significant autochthonous carbon input to the deeper anoxic layers stratified water bodies. In addition, various algal have been touted as promising candidates for anaerobic biogas production from biomass. Surprisingly, spite its ecological economic relevance, microbial community involved detritus turnover under...
The framework ecological stoichiometry uses elemental composition of species to make predictions about growth and competitive ability in defined supply conditions. Although intraspecific differences have been observed, we yet understand the mechanisms generating maintaining such variation. We used variation phosphorus (P) content within a Daphnia test extent which %P can explain competition. Further, measured 33P kinetics (acquisition, assimilation, incorporation retention) variables...
Abstract Survival and growth of the anaerobic gut fungi (AGF, Neocallimastigomycota) in herbivorous necessitate possession multiple abilities absent other fungal lineages. We hypothesized that horizontal gene transfer (HGT) was instrumental forging evolution AGF into a phylogenetically distinct gut-dwelling lineage. Patterns HGT were evaluated transcriptomes 27 strains, 22 which isolated sequenced this study, 4 genomes broadly covering breadth diversity. identified 283 incidents...
Micrococcus luteus is a predominant member of skin microbiome. We here report on the genomic analysis strain O'Kane that was isolated from an elevator. The partial genome assembly 2.5 Mb with 2256 protein-coding genes and 62 RNA genes. Genomic revealed metabolic versatility involved in metabolism transport glucose, galactose, fructose, mannose, alanine, aspartate, asparagine, glutamate, glutamine, glycine, serine, cysteine, methionine, arginine, proline, histidine, phenylalanine, fatty...
In contrast to temperate systems, Arctic lagoons that span the Alaska Beaufort Sea coast face extreme seasonality. Nine months of ice cover up ∼1.7 m thick is followed by a spring thaw introduces an enormous pulse freshwater, nutrients, and organic matter into these over relatively brief 2–3 week period. Prokaryotic communities link subsidies lagoon food webs through nutrient uptake, heterotrophic production, other biogeochemical processes, but little known about how genomic capabilities...
Background. Algae encompass a wide array of photosynthetic organisms that are ubiquitously distributed in aquatic and terrestrial habitats. Algal species often bloom ecosystems, providing significant autochthonous carbon input to the deeper anoxic layers stratified water bodies. In addition, various algal have been touted as promising candidates for anaerobic biogas production from biomass. Surprisingly, spite its ecological economic relevance, microbial community involved detritus turnover...
Background. Algae encompass a wide array of photosynthetic organisms that are ubiquitously distributed in aquatic and terrestrial habitats. Algal species often bloom ecosystems, providing significant autochthonous carbon input to the deeper anoxic layers stratified water bodies. In addition, various algal have been touted as promising candidates for anaerobic biogas production from biomass. Surprisingly, spite its ecological economic relevance, microbial community involved detritus turnover...