Please note that eDoc will be permanently shut down in the first quarter of 2021!      Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für molekulare Zellbiologie und Genetik     Collection: MPI-CBG Publications 2013 (arch)     Display Documents



  history
ID: 688606.0, MPI für molekulare Zellbiologie und Genetik / MPI-CBG Publications 2013 (arch)
Molecular Strategies of the Caenorhabditis elegans Dauer Larva to Survive Extreme Desiccation.
Authors:Erkut, Cihan; Vasilj, Andrej; Boland, Sebastian; Habermann, Bianca; Shevchenko, Andrej; Kurzchalia, Teymuras V.
Date of Publication (YYYY-MM-DD):2013
Title of Journal:PLoS ONE
Volume:8
Issue / Number:12
Sequence Number of Article:e82473
Copyright:not available
Audience:Experts Only
Intended Educational Use:No
Abstract / Description:Massive water loss is a serious challenge for terrestrial animals, which usually has fatal consequences. However, some organisms have developed means to survive this stress by entering an ametabolic state called anhydrobiosis. The molecular and cellular mechanisms underlying this phenomenon are poorly understood. We recently showed that Caenorhabditis elegans dauer larva, an arrested stage specialized for survival in adverse conditions, is resistant to severe desiccation. However, this requires a preconditioning step at a mild desiccative environment to prepare the organism for harsher desiccation conditions. A systems approach was used to identify factors that are activated during this preconditioning. Using microarray analysis, proteomics, and bioinformatics, genes, proteins, and biochemical pathways that are upregulated during this process were identified. These pathways were validated via reverse genetics by testing the desiccation tolerances of mutants. These data show that the desiccation response is activated by hygrosensation (sensing the desiccative environment) via head neurons. This leads to elimination of reactive oxygen species and xenobiotics, expression of heat shock and intrinsically disordered proteins, polyamine utilization, and induction of fatty acid desaturation pathway. Remarkably, this response is specific and involves a small number of functional pathways, which represent the generic toolkit for anhydrobiosis in plants and animals.
External Publication Status:published
Document Type:Article
Version Comment:Automatic journal name synchronization
Communicated by:Lib
Affiliations:MPI für molekulare Zellbiologie und Genetik
Identifiers:LOCALID:5599
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.