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- Title
A role for expansins in dehydration and rehydration of the resurrection plant Craterostigma plantagineum
- Authors
Jones, Louise; McQueen-Mason, Simon
- Abstract
Craterostigma plantagineum is one of the few higher plants capable of surviving desiccation throughout its vegetative tissues. Water loss results in cell shrinkage and a commensurate folding of the cell wall indicating an unusual degree of wall flexibility. We show that wall extensibility undergoes a marked increase during dehydration and rehydration. Similar increases were observed in the activity of expansins in cell walls during these processes suggesting a role for these proteins in increasing wall flexibility. Three α-expansin cDNAs were cloned from dehydrating leaves and transcript levels for one correlated closely with the observed changes in expansin activity during the dehydration and rehydration of leaves.
- Subjects
PLANT cell walls; DEHYDRATION; CIRCULAR DNA; LEAVES
- Publication
FEBS Letters, 2004, Vol 559, Issue 1-3, p61
- ISSN
0014-5793
- Publication type
Article
- DOI
10.1016/S0014-5793(04)00023-7