Ice-Binding Proteins Associated with an Antarctic Cyanobacterium, Nostoc sp. HG1

The horizontal transfer of genes encoding ice-binding proteins (IBPs), proteins that confer freeze-thaw tolerance, has allowed many microorganisms to expand their ranges into polar regions. One group of microorganisms for which nothing is known about its IBPs is cyanobacteria. In this study, we iden...

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Bibliographic Details
Published in:Applied and Environmental Microbiology
Main Authors: Raymond, James A., Janech, Michael G., Mangiagalli, Marco
Other Authors: Atomi, Haruyuki, National Science Foundation, National Aeronautics and Space Administration
Format: Article in Journal/Newspaper
Language:English
Published: American Society for Microbiology 2021
Subjects:
Ecology
Applied Microbiology and Biotechnology
Food Science
Biotechnology
Antarctic
Antarc*
Online Access:http://dx.doi.org/10.1128/aem.02499-20
https://journals.asm.org/doi/pdf/10.1128/AEM.02499-20
Description
Summary:The horizontal transfer of genes encoding ice-binding proteins (IBPs), proteins that confer freeze-thaw tolerance, has allowed many microorganisms to expand their ranges into polar regions. One group of microorganisms for which nothing is known about its IBPs is cyanobacteria. In this study, we identified a cyanobacterial IBP and showed that it was likely acquired from another bacterium, probably a planctomycete. We also showed that a consortium of IBP-producing bacteria living with the Nostoc contribute to its IBP activity.

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