Determinants of Community Structure, Function and Succession of Freshwater Microorganisms Colonizing Lake Snow
Final Report Abstract
Organic particles mediate the cycling of major elements on our planet and play an important role in the balance of nutrients in lakes and oceans. Sinking, suspended and ascending particles link the different parts of aquatic systems by transferring carbon, nutrients, and organisms. Organic particles are hotspots for microbial activity and are colonized by diverse microorganisms with communities altering in time due to competition and gradual change in the carbon and nutritional qualities of the particles. Traditionally, microbial diversity and activity on organic matter particles have been studied using highthroughput bulk approaches, in which multiple particles of different sizes, sources (e.g., fecal pellets or phytoplankton), and ages are averaged. Recent work from PI Bizic and others has demonstrated that bulk-based approaches do not accurately reflect the diversity or activity of microorganisms on individual particles, and studies are often biased by a few non-representative larger particles. In fact, individual particles are highly heterogeneous micro-ecosystems; therefore, zooming into particles at the individual particle scale is essential to understand the degree of heterogeneity among particles in colonizing community structure and its activity. Doing so enables new insights into the microbial ecology driving biogeochemical variability and allows the incorporation of data on individual particles into lake, ocean, and global models for improved understanding of carbon storage in aquatic ecosystems. This project focused on studying the microbial communities on individual particles in limnic and marine settings, focusing on heterogeneity in community compositions and activity. The results revealed that 1) Using closed systems in long-term studies on organic particles results in biases; 2) Particle source has minimal influence on initial particle colonization; 3) Particles are highly heterogeneous in colonizing communities and in activity; 4) During sinking the particle colonizing community is shifting between genomically different organisms whose metabolic properties are still under evaluation during the submission of this report.
Publications
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Contribution of oxic methane production to surface methane emission in lakes and its global importance. Nature Communications, 10(1).
Günthel, Marco; Donis, Daphne; Kirillin, Georgiy; Ionescu, Danny; Bizic, Mina; McGinnis, Daniel F.; Grossart, Hans-Peter & Tang, Kam W.
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Linking stream microbial community functional genes to dissolved organic matter and inorganic nutrients. Limnology and Oceanography, 65(S1).
Fasching, Christina; Akotoye, Christian; Bižić, Mina; Fonvielle, Jeremy; Ionescu, Danny; Mathavarajah, Sabateeshan; Zoccarato, Luca; Walsh, David A.; Grossart, Hans‐Peter & Xenopoulos, Marguerite A.
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Aquatic and terrestrial cyanobacteria produce methane. Science Advances, 6(3).
Bižić, M.; Klintzsch, T.; Ionescu, D.; Hindiyeh, M. Y.; Günthel, M.; Muro-Pastor, A. M.; Eckert, W.; Urich, T.; Keppler, F. & Grossart, H.-P.
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Blue-green algae (Cyanobacteria) are a newly discovered Academic Curriculum Vitae: Dr. Mina Bizic Page 5 of 17 global source of methane, The Science Breaker
Bizic, M., Klintzsch, T. & Ionescu, D.
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Heterozygous, Polyploid, Giant Bacterium, Achromatium , Possesses an Identical Functional Inventory Worldwide across Drastically Different Ecosystems. Molecular Biology and Evolution, 38(3), 1040-1059.
Ionescu, Danny; Zoccarato, Luca; Zaduryan, Artur; Schorn, Sina; Bizic, Mina; Pinnow, Solvig; Cypionka, Heribert & Grossart, Hans-Peter
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Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission. Limnology and Oceanography, 65(12), 2853-2865.
Günthel, Marco; Klawonn, Isabell; Woodhouse, Jason; Bižić, Mina; Ionescu, Danny; Ganzert, Lars; Kümmel, Steffen; Nijenhuis, Ivonne; Zoccarato, Luca; Grossart, Hans‐Peter & Tang, Kam W.
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The Bacterial Microbiome of the Long-Term Aquarium Cultured High-Microbial Abundance Sponge Haliclona cnidata – Sustained Bioactivity Despite Community Shifts Under Detrimental Conditions. Frontiers in Marine Science, 7.
Schellenberg, Johannes; Reichert, Jessica; Hardt, Martin; Klingelhöfer, Ines; Morlock, Gertrud; Schubert, Patrick; Bižić, Mina; Grossart, Hans-Peter; Kämpfer, Peter; Wilke, Thomas & Glaeser, Stefanie P.
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Lacul Roșu – pădurea din adâncul lacului (The Secrets of the Red Lake), National Geographic Romania, March edition.
Bizic, M., Stermin, A. N., Szigyártó, L., Dénes, L. A., Hegyi, B. & Hantz, P.
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Life around dormant volcanoes (in Hungarian), GEO Hungary, March edition.
Hantz, P. & Bizic, M.
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Phytoplankton photosynthesis: an unexplored source of biogenic methane emission from oxic environments. Journal of Plankton Research, 43(6), 822-830.
Bizic, Mina
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Reply to ‘Oxic methanogenesis is only a minor source of lake-wide diffusive CH4 emissions from lakes’. Nature Communications, 12(1).
Günthel, Marco; Donis, Daphne; Kirillin, Georgiy; Ionescu, Danny; Bizic, Mina; McGinnis, Daniel F.; Grossart, Hans-Peter & Tang, Kam W.
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ASLO's Early Career Committee Amplifies Voices of Underrepresented Groups in Aquatic Sciences. Limnology and Oceanography Bulletin, 31(1), 18-20.
Meinikmann, Karin; Gushulak, Cale A. C.; Ghosh, Anwesha; Bizic, Mina; Lee, Ying Ping; Luis, Kelly & Grossart, Hans‐Peter
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Bridging Gaps in Aquatic Sciences: A Conscious Effort Toward Unbiased Scientific Presentations Through Amplifying Voices. Limnology and Oceanography Bulletin, 31(3), 85-87.
Ghosh, Anwesha; Bizic, Mina; Gushulak, Cale A. C.; Lee, Ying Ping; Luis, Kelly M.; Meinikmann, Karin & Grossart, Hans‐Peter
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Cave Thiovulum (Candidatus Thiovulum stygium) differs metabolically and genomically from marine species. The ISME Journal, 17(3), 340-353.
Bizic, Mina; Brad, Traian; Ionescu, Danny; Barbu-Tudoran, Lucian; Zoccarato, Luca; Aerts, Joost W.; Contarini, Paul-Emile; Gros, Olivier; Volland, Jean-Marie; Popa, Radu; Ody, Jessica; Vellone, Daniel; Flot, Jean-François; Tighe, Scott & Sarbu, Serban M.
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Der Bärensee in Siebenbürgen, Biologie in Unserer Zeit, 52:370-378.
Hanz P. & Bizic M.
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From microbes to mammals: Pond biodiversity homogenization across different land‐use types in an agricultural landscape. Ecological Monographs, 92(3).
Ionescu, D.; Bizic, M.; Karnatak, R.; Musseau, C. L.; Onandia, G.; Kasada, M.; Berger, S. A.; Nejstgaard, J. C.; Ryo, M.; Lischeid, G.; Gessner, M. O.; Wollrab, S. & Grossart, H.‐P.
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Land‐use type temporarily affects active pond community structure but not gene expression patterns. Molecular Ecology, 31(6), 1716-1734.
Bizic, Mina; Ionescu, Danny; Karnatak, Rajat; Musseau, Camille L.; Onandia, Gabriela; Berger, Stella A.; Nejstgaard, Jens C.; Lischeid, Gunnar; Gessner, Mark O.; Wollrab, Sabine & Grossart, Hans‐Peter
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Potential for Natural Attenuation of Domestic and Agricultural Pollution in Karst Groundwater Environments. Water, 14(10), 1597.
Brad, Traian; Bizic, Mina; Ionescu, Danny; Chiriac, Cecilia Maria; Kenesz, Marius; Roba, Carmen; Ionescu, Artur; Fekete, Alexandru; Mirea, Ionut Cornel & Moldovan, Oana Teodora
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Stable Carbon Isotope Signature of Methane Released From Phytoplankton. Geophysical Research Letters, 50(12).
Klintzsch, T.; Geisinger, H.; Wieland, A.; Langer, G.; Nehrke, G.; Bizic, M.; Greule, M.; Lenhart, K.; Borsch, C.; Schroll, M. & Keppler, F.
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The Silent Mental Health and Well‐Being Crisis of Early Career Researchers in Aquatic Sciences. Limnology and Oceanography Bulletin, 32(1), 16-17.
Gushulak, Cale A. C.; Bodmer, Pascal; Carvalho, Carolinne R.; Gladstone‐Gallagher, Rebecca V.; Lee, Ying Ping; Lowman, Heili E.; Oguguah, Ngozi M.; Meinikmann, Karin; Rii, Yoshimi M.; Rodríguez‐Cardona, Bianca M. & Bizic, Mina
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A focus on different types of organic matter particles and their significance in the open ocean carbon cycle. California Digital Library (CDL).
Baumas, Chloé & Bizic, Mina
