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Unformatted text preview: Abscisic Acid and LEA Proteins Abscisic acid also initiates gene transcription for additional water conservation measures on the part of the plant. Of particular interest is the synthesis of LEA proteins (late embryogenesis proteins). LEA proteins occur naturally in maturing seeds as they desiccate for dormancy. The LEA proteins help to stabilize the membranes and other proteins of the dehydrated cells, but LEA genes can also help plants grow better during drought. Transgenic rice plants with the LEA gene are more drought tolerant than rice plants lacking LEA expression in shoot growth. The HARDY gene in Arabidopsis also promotes more root growth and thicker drought resistant leaves to improve water efficiency. The HARDY gene has also been incorporated into rice with success....
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This note was uploaded on 01/08/2012 for the course BIO 213 taught by Professor Makina during the Fall '09 term at SUNY Stony Brook.
- Fall '09