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The Neuer Lab in ASU news!

The Neuer group’s latest achievement has been featured in a Biodesign Institute news story and on ASU Now, as the first laboratory group to receive a research grant in the new Center for Fundamental and Applied Microbiomics. This center’s mission involves the study of the structure and function of complex microbial systems, with the Neuer Lab’s focus being on the oceanic microbiome. The $687,521 National Science Foundation’s Biological Oceanography grant will allow the Neuer group, in collaboration with Associate Professor Dr. Hinsby Cadillo-Quiroz, to expand upon their research on the aggregation of pico-phytoplankton by incorporating both laboratory and field investigations – which will help shed light to the potential contribution that the eukaryotic fraction of pico-phytoplankton may have on the oceanic biological carbon pump in oligotrophic ocean regions. The newsletters can be found here: Biodesign Institute News ASU...

The Neuer Lab goes abroad in collaboration with USAID and STRI

Neuer Lab graduate students Kassandra Dudek and Bianca Cruz have recently taken off to the Smithsonian Tropical Research Institute in Bocas Del Toro, Panama to conduct research on microplastics — a category of anthropogenic pollutants of ever-increasing concern. The focus of the research is to study the influence that marine microbial communities may have on the removal of these particles, how they may contribute to the settling of phyto- and bacterioplankton to depth, as well as microbial and UV degradation of plastics. In collaboration with Dr. Beth Polidoro, an Environmental Chemist at the School of Mathematical and Natural Sciences, they will also study the potential chemical pollutants adsorbed by these particles, which pose threats to the local marine food web and human societies. This research is being funded by ASU’s Global Development Research Program in collaboration with the U.S. Agency for International Development. Want to learn more? Follow their research and adventures through Kassandra’s...
2017 Aquatic Sciences Meeting

2017 Aquatic Sciences Meeting

This year, the ASLO Aquatic Sciences Meeting was held in the beautiful city of Honolulu in Hawai’i! PI Dr. Susanne Neuer gave a very insightful and well-received talk on sediment trap material composition, as well as the relative contribution of marine cyanobacteria and protists in these traps from the Sargasso Sea. Master’s student Bianca Cruz presented a poster on the influence of heterotrophic bacteria on transparent exopolymeric particle production and subsequent aggregation and sinking of the ubiquitous marine picocyanobacteria Synechococcus and Prochlorococcus. We look forward to the next ASM meeting in...
New AME article on marine Synechococcus TEP production and aggregate formation available

New AME article on marine Synechococcus TEP production and aggregate formation available

Check out the new research article by Wei Deng and Bianca Cruz on the production of TEP by marine Synechococcus strain WH8102 under N- and P- limited conditions — published in the journal Aquatic Microbial Ecology. Find it here. The article was also featured on AME’s Facebook and Twitter pages! Abstract Pico-cyanobacteria are abundant primary producers in most of the global ocean but their role in the export of organic carbon to depth remains a matter of debate. A recent laboratory study using roller tanks showed that marine Synechococcus cells can form visible (>1 mm) aggregates that sink at velocities of more than 400 m d–1 in seawater. The present study aimed to investigate the mechanism behind such aggregation by exploring the potential role of transparent exopolymeric particles (TEP) and the effects of nutrient (nitrogen or phosphorus) limitation on the TEP production and aggregate formation of these pico-cyanobacteria. Our results show that despite the lowered growth rates, cells in the nutrient-limited cultures had higher cell-normalized TEP production, and formed a larger total volume of aggregates that had higher settling velocities compared to aggregates formed from cells in the nutrient-replete cultures. This study contributes to our understanding of the physiology of marine Synechococcus as well as their role in the ecology and biogeochemistry in the oceans. Deng W, Cruz BN, Neuer S (2016) Effects of nutrient limitation on cell growth, TEP production and aggregate formation of marine Synechococcus. Aquat Microb Ecol...
2016 Ocean Sciences Meeting

2016 Ocean Sciences Meeting

The Neuer Lab headed to New Orleans, LA to present their latest findings at the 2016 Ocean Sciences Meeting. Bianca Cruz presented a poster on the aggregation and sinking of Synechococcus under nutrient limitation and clay addition; Megan Wolverton presented on the export of the algal community in the land fast sea ice based in the Arctic Ocean. Francesca De Martini represented the lab during the session talks with a presentation on the link between the growth and grazing rate of cyanobacteria and their carbon export in the Sargasso Sea. We look forward to the upcoming OSM, which will be held in Portland, OR February 2018! Click here for free on-demand access to the Keynote, Plenary, and Award Lectures presented at the 2016 meeting.  ...