A5046036085- Marine Biology and Ecology Research
- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
- Alkaline Phosphatase Research Studies
- Marine and coastal ecosystems
- Soil and Water Nutrient Dynamics
- Health, Environment, Cognitive Aging
- Environmental Monitoring and Data Management
- Isotope Analysis in Ecology
- Pesticide and Herbicide Environmental Studies
- Wastewater Treatment and Nitrogen Removal
- Chromium effects and bioremediation
Scripps Institution of Oceanography
2021-2023
University of California, San Diego
2021-2023
University of Washington
2022
In the ocean, dissolved organic phosphorus (DOP) supports health and productivity of marine phytoplankton, a phenomenon most often investigated under inorganic phosphate (Pi) scarcity. However, microbial DOP acquisition in Pi replete environments remains poorly understood. Here, we conducted combination nutrient addition experiments, alkaline phosphatase (AP) rate measurements, metatranscriptomics along an onshore-to-offshore gradient California Current Ecosystem (CCE), upwelling region...
Summary Dissolved organic phosphorus (DOP) is a critical nutritional resource for marine microbial communities. However, the relative bioavailability of different types DOP, such as phosphomonoesters (P‐O‐C) and phosphoanhydrides (P‐O‐P), poorly understood. Here we assess utilization these P sources by representative bacterial copiotroph, Ruegeria pomeroyi DSS‐3. All DOP supported equivalent growth R . , all hydrolysis rates were upregulated under depletion (−P). A long‐chain polyphosphate...
Abstract Peptides are identified using a de novo‐discovery approach in suspended and sinking particles from the eastern tropical North Pacific oxygen‐deficient zone (ODZ) culture of dominant autotroph region, cyanobacterium Prochlorococcus . The benchmarking experiment with shows novo peptides to be taxonomically specific, thus value augmenting database‐driven approaches. Analysis reveals presence fungal proteins deep that were not our original search database, contributing growing...
Alkaline phosphatase (AP) activity (APA) is typically interpreted as a marker for phosphorus (P) stress in marine microbial communities.However, high APA values have been measured many regions that are replete with phosphate (Pi).This "APA enigma" has attributed to bacterial acquisition of carbon (C), rather than Pi.Yet, these dynamics not fully understood.To address the enigma, total dissolved P (TDP) and measurements were taken together first time California Current Ecosystem (CCE) Long...