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Multi-decadal survival of an antarctic nematode, Plectus murrayi, in a -20 degree c stored moss sample.
MedLine Citation:
PMID:  22987239     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
It is not clear for how long Antarctic soil nematodes might tolerate freezing. Samples of the Antarctic moss, Bryum argenteum, were collected on 1 October 1983 at Langhovde, Soya coast, eastern Antarctica and were stored at -20 degree C. After 25.5 years of storage, living nematodes were recovered from the samples and were identified as Plectus murrayi by morphological examination and nucleotide sequencing of ribosomal RNA loci. The nematodes can grow and reproduce in a water agar plate with bacteria (mainly Pseudomonas sp.) cultured from the moss extract. They showed freezing tolerance at -20 degree C and -80 degree C and their survival rate after exposure to -20 degree C, but not -80°C, was increased if they were initially frozen slowly at a high sub-zero temperature. They also showed some ability to tolerate desiccation stress.
Authors:
H Kagoshima; K Kito; T Aizu; T Shin-I; H Kanda; S Kobayashi; A Toyoda; A Fujiyama; Y Kohara; P Convey; H Niki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cryo letters     Volume:  33     ISSN:  0143-2044     ISO Abbreviation:  Cryo Letters     Publication Date:    2012 Jul-Aug
Date Detail:
Created Date:  2012-09-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9891832     Medline TA:  Cryo Letters     Country:  England    
Other Details:
Languages:  eng     Pagination:  280-8     Citation Subset:  IM    
Affiliation:
Transdisciplinary Research Integration Center, Research Organization of Information and Systems (ROIS), Tokyo; National Institute of Genetics, ROIS, Shizuoka, Japan. hkagoshi@nig.ac.jp.
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