Igor S. Pessi, PhD
Polar Microbial Ecologist

I am a microbiologist specialized in the study of polar microbial communities. My research focuses 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 in Brazil, and a PhD in Sciences from the University of Liège in Belgium. I am currently a Researcher at the Finnish Environment Institute (Syke).

Latest posts

Bioplastic biodegradability shapes microbial communities in a coastal brackish environment

Last updated on 13 April 2026

Our study "Bioplastic biodegradability shapes microbial communities in a coastal brackish environment" is now published in the ISME Journal.

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Discovery of Eremiobacterota with nifH homologues in tundra soil

Last updated on 21 June 2024

Our study "Discovery of Eremiobacterota with nifH homologues in tundra soil" is now published in Environmental Microbiology Reports.

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You can now find me in Mastodon Bluesky

Last updated on 23 January 2024

Since the takeover of Twitter by Elon Musk and his fascist troupe I have decided to leave Twitter. For now you can find me on Mastodon Bluesky.

Candidatus Nitrosopolaris, a genus of putative ammonia-oxidizing archaea with a polar/alpine distribution

Last updated on 8 August 2022

Our study "Candidatus Nitrosopolaris, a genus of putative ammonia-oxidizing archaea with a polar/alpine distribution" is now published in FEMS Microbes.

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