Wednesday, September 22, 2010

Resurrection Fern



Our Live Oaks support a thriving community of Pleopeltis polypodiodies (Resurrection fern) which is an epiphyte.  They are able to lose 95% of their free water during times of drought and are then able to rehydrated during a rainstorm (and resurrect).  Typical plants die after losing only 10% of their free water.  Part of their magic apparently involves proteins called dehydrins that allow the cell walls to fold in a reversible way.  It has been estimated that they could live up to 100 years without water and still rehydrate to their seemingly youthful state.  

 
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