Israeli scientists from Kinneret College have genetically engineered a plant that can withstand droughts by ‘freezing itself’ after not receiving water for a certain period of time. The plant then ‘returns to life’ after the water supply is renewed, without any damage to the plant’s structure.
http://www.algemeiner.com/2013/08/19/israeli-scientific-breakthrough-could-ease-droughts-and-famines/