Linked Life Data

18980743

Source:http://linkedlifedata.com/resource/pubmed/id/18980743

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-11-4
pubmed:abstractText
Desiccation tolerance is the capacity to survive complete drying. It is an ancient trait that can be found in prokaryotes, fungi, primitive animals (often at the larval stages), whole plants, pollens and seeds. In the dry state, metabolism is suspended and the duration that anhydrobiotes can survive ranges from years to centuries. Whereas genes induced by drought stress have been successfully enumerated in tissues that are sensitive to cellular desiccation, we have little knowledge as to the adaptive role of these genes in establishing desiccation tolerance at the cellular level. This paper reviews postgenomic approaches in a variety of desiccation tolerant organisms in which the genetic responses have been investigated when they acquire the capacity of tolerating extremes of dehydration or when they are dry. Accumulation of non-reducing sugars, LEA proteins and a coordinated repression of metabolism appear to be the essential and universal attributes that can confer desiccation tolerance. The protective mechanisms of these attributes are described. Furthermore, it is most likely that other mechanisms have evolved since the function of about 30% of the genes involved in desiccation tolerance remains to be elucidated. The question of the overlap between desiccation tolerance and drought tolerance is briefly addressed.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1295-0661
pubmed:author
pubmed:issnType
Print
pubmed:volume
202
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
213-22
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
[Postgenomic analysis of desiccation tolerance].
pubmed:affiliation
INRA, UMR 1191, Physiologie moléculaire des semences, IFR 149 QUASAV, 49045 Angers, France. julia.buitink@angers.inra.fr
pubmed:publicationType
Journal Article, English Abstract, Review