The largest known DNA viruses infect Acanthamoeba and belong to two markedly different
families. The Megaviridae exhibit pseudo-icosahedral virions up to 0.7 μm in diameter and …

Deep subterranean layers may be regarded as the most stable environment for microorganisms
where possible fluctuations should be explained by geological events only. The …

Acanthamoeba species are infected by the largest known DNA viruses. These include
icosahedral Mimiviruses, amphora-shaped Pandoraviruses, and Pithovirus sibericum, the latter …

Genomic DNA was isolated from the active layer of tundra soil collected from the Kolyma
lowland. Northeast Eurasia, near the Arctic Ocean coast. The SSU (small subunit) rRNA genes …

This study describes the biodiversity of the indigenous microbial community in the sodium-chloride
water brines (cryopegs) derived from ancient marine sediments and sandwiched …

Considering that 25% of Earth’s terrestrial surface is underlain by permafrost (ground that
has been continuously frozen for at least 2 years), our understanding of the diversity of …

This study summarizes the findings of our research on the genesis of methane, its content
and distribution in permafrost horizons of different age and origin. Supported by reliable data …

Ice-rich permafrost in the circum-Arctic and sub-Arctic (hereafter pan-Arctic), such as late
Pleistocene Yedoma, are especially prone to degradation due to climate change or human …

Significant numbers of viable ancient microorganisms are known to be present within the
permafrost. They have been isolated in both polar regions from the cores up to 400 m deep and …

Thermokarst lakes are widespread in Arctic lowlands. Under a warming climate, landscapes
with highly ice-rich Yedoma Ice Complex (IC) deposits are particularly vulnerable, and …