Research output per year
Research output per year
Personal profile
Description of research and teaching
I am a microbiologist specialized in the study of polar microbial communities. My research focuses mostly on the use of molecular ecology methods such as metagenomics and metatranscriptomics to explore the diversity and functional capabilities of microbial communities across the polar regions. I have a MSc degree in Cellular and Molecular Biology from the Federal University of Rio Grande do Sul (UFRGS, Brazil), and a PhD in Sciences from the University of Liège (Belgium). I am currently a Researcher at the Finnish Environment Institute (Syke) (Finland).
External positions
Researcher, Finnish Environment Institute (SYKE)
1 Jan 2023 → …
Fields of Science
- 1183 Plant biology, microbiology, virology
- 1182 Biochemistry, cell and molecular biology
- 1181 Ecology, evolutionary biology
International and National Collaboration
Publications and projects within past five years.
Publications
- 9 Article
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Discovery of Eremiobacterota with nifH homologues in tundra soil
Pessi, I. S., Delmont, T. O., Zehr, J. P. & Hultman, J., Jun 2024, In: Environmental microbiology reports. 16, 3, 5 p., e13277.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
Novel diversity of polar Cyanobacteria revealed by genome-resolved metagenomics
Pessi, I. S., Popin, R. V., Durieu, B., Lara, Y., Tytgat, B., Savaglia, V., Roncero-Ramos, B., Hultman, J., Verleyen, E., Vyverman, W. & Wilmotte, A., Jul 2023, In: Microbial Genomics. 9, 7, 14 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
Candidatus Nitrosopolaris, a genus of putative ammonia-oxidizing archaea with a polar/alpine distribution
Pessi, I. S., Rutanen, A. & Hultman, J., 24 Jul 2022, In: FEMS Microbes. 3Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
In-depth characterization of denitrifier communities across different soil ecosystems in the tundra
Pessi, I. S., Viitamäki, S., Virkkala, A.-M., Eronen-Rasimus, E., Delmont, T. O., Marushchak, M. E., Luoto, M. & Hultman, J., 11 Jun 2022, In: Environmental microbiome. 17, 17 p., 30.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
The activity and functions of soil microbial communities in the Finnish sub-Arctic vary across vegetation types
Viitamaki, S., Pessi, I. S., Virkkala, A.-M., Niittynen, P., Kemppinen, J., Eronen-Rasimus, E., Luoto, M. & Hultman, J., 1 Aug 2022, In: FEMS Microbiology Ecology. 98, 8, 11 p., 079.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile
Projects
- 1 Finished
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Changing Climate Alters Microbial Community Function In Arctic Regions
Hultman, J. (Principal Investigator), Viitamäki, S. (Participant) & Pessi, I. S. (Participant)
01/01/2017 → 31/12/2019
Project: University of Helsinki Three-Year Research Project
Activities
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Medical University Graz
Viitamäki, S. (Visiting researcher) & Pessi, I. S. (Visiting researcher)
10 Apr 2019 → 18 Apr 2019Activity: Visiting an external institution types › Academic visit to other institution
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Meta-omics investigation of soil communities in the Finnish Arctic tundra
Pessi, I. S. (Speaker)
8 Feb 2019Activity: Talk or presentation types › Oral presentation
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3rd Conference on Ecology of Soil Microorganisms
Pessi, I. S. (Poster Presentation)
13 Jun 2018Activity: Participating in or organising an event types › Organisation and participation in conferences, workshops, courses, seminars
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Genome-centric investigation of soil microbial communities along a natural climate gradient in the Finnish Arctic
Pessi, I. S. (Speaker)
13 Nov 2018Activity: Talk or presentation types › Oral presentation
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Genome-resolved metagenomic analysis of microbial communities in soils along a natural climatic gradient in the Scandinavian Arctic
Pessi, I. S. (Speaker)
16 Aug 2018Activity: Talk or presentation types › Oral presentation