Viable Nematodes from Late Pleistocene Permafrost of the Kolyma River Lowland

  title={Viable Nematodes from Late Pleistocene Permafrost of the Kolyma River Lowland},
  author={A. V. Shatilovich and Alexey V. Tchesunov and Tatyana V. Neretina and I. P. Grabarnik and S. V. Gubin and Tatiana A. Vishnivetskaya and Tullis C. Onstott and Elizaveta M Rivkina},
  journal={Doklady Biological Sciences},
We have obtained the first data demonstrating the capability of multicellular organisms for longterm cryobiosis in permafrost deposits of the Arctic. The viable soil nematodes Panagrolaimus aff. detritophagus (Rhabditida) and Plectus aff. parvus (Plectida) were isolated from the samples of Pleistocene permafrost deposits of the Kolyma River Lowland. The duration of natural cryopreservation of the nematodes corresponds to the age of the deposits, 30 000–40 000 years. 
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. Contrary to most soils, permafrost soils have the atypical feature of being almost entirely deprived of soil fauna. Abiotic constraints on the fate of permafrost carbon after thawing are
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  • 2021
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Nematodes are a highly diverse group of organisms that show a variety of adaptations to extremes in soil and plant environments, and entry into anhydrobiosis or other extreme states allows long-term survival in unusually stressful environments.
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The environmental physiology of terrestrial Antarctic nematodes is reviewed with an emphasis on their cold-tolerance strategies, and Teratocephalus tilbrooki and Ditylenchus parcevivens are fast-dehydration strategists.
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