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  • Title: A role for expansins in dehydration and rehydration of the resurrection plant Craterostigma plantagineum.
    Author: Jones L, McQueen-Mason S.
    Journal: FEBS Lett; 2004 Feb 13; 559(1-3):61-5. PubMed ID: 14960308.
    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 alpha-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.
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