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Agnieszka Kawska, David Prangishvili (Institut Pasteur, Department of Microbiology, 25, rue du Dr. Roux, 75015 Paris, France)
Archaeal viruses, lesser known than their bacterial and eukaryotic counterparts, display many unique and suprising features such as their shape diversity, the varied genetic and protic composition as well as the ingenious packaging of their genetic material. Recent systematic studies have uncovered new groups of archaeal viruses that live and infect their hosts in most extreme habitats like hot springs and highly acidic waters. New advances have also been made concerning the molecular biology of their life cycles and virus-host interactions, including interactions with archaeal CRISPR-Cas systems. Archaeal viruses play a major role in the ocean sediments as they contribute to the release of up to half a gigaton of carbon per year globally. The poster offers a glimpse into their morphological diversity. It is based on a work created under the scientific supervision of Prof. D. Prangishvili (Institut Pasteur, Paris, France) for National Geographic Georgia. Copyright: Prof. D. Prangishvili, image author: Dr. A. Kawska, IlluScientia.com