Ethylene insensitivity modulates ozone-induced cell death in birch1

From: Plant Physiology | Date: May 1, 2003| Author: | Copyright information

We have used genotypic variation in birch (Betula pendula Roth) to investigate the roles of ozone (O^sub 3^)-induced ethylene (ET), jasmonic acid, and salicylic acid in the regulation of tissue tolerance to O^sub 3^. Of these hormones, ET evolution correlated best with O^sub 3^-induced cell death. Disruption of ET perception by transformation of birch with the dominant negative mutant allele etr1-1 of the Arabidopsis ET receptor gene ETR1 or blocking of ET perception with 1-methylcyclopropene reduced but did not completely prevent the O^sub 3^-induced cell death, when inhibition of ET ...

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