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Green leaf volatiles (GLV) have been mostly associated with the regulation of defense responses. in particular defense priming. in plants. However. we found that GLV are also regulators of abiotic stress responses and for example protect against cold stress damage. Plants that were treated with GLV at physiological concentrations showed less cold damage and retained normal growth while untreated plants showed severe damage and growth reduction under the same conditions. We have further identified GLV- and cold-inducible sets of genes. which appear to be involved in carbohydrate metabolism.

The University of Texas at San Antonio
Engelberth, Jurgen