I am a PhD student in Ecology at the Linnaeus University Center for Ecology and Evolution in Microbial model Systems (EEMiS) in Kalmar, Sweden. I earned a Master of Science (MS) of Biological Sciences from Idaho State University where my thesis project focused on genomic assembly and annotation and proteomic identification of Extracellular Electron Transport within an iron respiring thermophilic bacterium. To explore this project, I utilized a multi-tool approach of whole-genome sequencing, targeted SDS-PAGE with protein sequencing, and development of a flow-through bioreactor for live imaging confocal microscopy.
I also hold two Bachelors of Science degrees from Idaho State University in Biological Sciences and Outdoor Education and during this time I was a student employee in the Biology department stockroom, a research lab, as well as a seasonal field assistant. The degree in outdoor education has proven to be very useful as my time in- and the difficulty of- my field work has increased.
Forskning
My research is centered around exploring the microbial diversity of acid sulfate soils throughout Sweden and boreal acid mine drainage. Projects currently include regional microbial community differences of active acid sulfate soils, microbial community changes during various treatments of sulfidic soil materials, microbial community changes during oxidation or reduction of metals contained in sulfidic soils, and microbial changes in acid mine drainage environments
Mina pågående forskningsprojekt
-
Projekt: MinImpact – bästa praxis för hållbar stabilisering och återanvändning av sulfidjordar Sulfidjordar är en stor utmaning när de påträffas i markbyggnadsprojekt och stadsexpansion på grund av…
-
Projekt: MULTIP – Multifunktionella bevattningsdammar Bevattningsdammar spelar en allt viktigare roll inom jordbruket i takt med att torrperioderna blir längre och mer intensiva. Inom…
-
Projekt: Uranets mobilisering och redoxkemi i två boreala sulfidiska landskap Det övergripande syftet med projektet är att utforska och undersöka de biogeokemiska processer som styr frigörelse,…
Publikationer
Artikel i tidskrift (Refereegranskat)
-
Kononova, L., Johnson, A., Engblom, S., Sten, P., Yu, C., et al. (2025). Geochemical and microbial responses to limestone and peat treatment of incubated hypermonosulfidic sediments. European Journal of Soil Science. 76 (1).
Status: Publicerad -
Johnson, A., Nyman, A., Åström, M.E., Dopson, M. (2025). Swedish Hypersulfidic Soil Material Incubations Suggest Temperature Mainly Drives Regional Microbial Community Variation. European Journal of Soil Science. 76 (2).
Status: Publicerad -
Johnson, A., Lonntoft, E., Piatek, P., Ronne, E., Simons, A., et al. (2024). Sulfidic mine waste rock alkaliphilic microbial communities rapidly replaced by aerobic acidophiles following deposition. Biogeochemistry. 168 (1).
Status: Publicerad -
Nyman, A., Boman, A., Johnson, A., Dopson, M., Åström, M.E. (2024). Easily mobilized metals and acidity in acid sulfate soils across the Swedish coastal plains. European Journal of Soil Science. 75 (6).
Status: Publicerad -
Yu, C., Johnson, A., Karlsson, A., Chernikov, R., Sjöberg, V., et al. (2024). Uranium Repartitioning during Microbial Driven Reductive Transformation of U(VI)-Sorbed Schwertmannite and Jarosite. Environmental Science and Technology. 58 (41). 18324-18334.
Status: Publicerad -
Johnson, A., Nyman, A., Åström, M.E., Dopson, M. (2024). Regional variation in Swedish acid sulfate soil microbial communities is influenced by temperature and geochemistry. European Journal of Soil Science. 75 (1).
Status: Publicerad -
Nyman, A., Johnson, A., Yu, C., Dopson, M., Åström, M.E. (2023). Multi-element features of active acid sulfate soils across the Swedish coastal plains. Applied Geochemistry. 152.
Status: Publicerad -
Nyman, A., Johnson, A., Yu, C., Sohlenius, G., Becher, M., et al. (2023). A nationwide acid sulfate soil study : A rapid and cost-efficient approach for characterizing large-scale features. Science of the Total Environment. 869.
Status: Publicerad -
Johnson, A., Högfors-Rönnholm, E., Engblom, S., Österholm, P., Åström, M.E., et al. (2022). Dredging and deposition of metal sulfide rich river sediments results in rapid conversion to acid sulfate soil materials. Science of the Total Environment. 813.
Status: Publicerad
Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
- Johnson, A. (2024). Microbiology of boreal acid sulfate soils : Biogeochemical drivers of acidity generation and metals leaching. Doctoral Thesis. Växjö, Linnaeus University Press. 49.