Abstract
Using an Affymetrix GeneChip™ containing 8300 oligonucleotide probes, we measured transcript levels in transgenicArabidopsis overexpressing the jasmonate carboxyl methyltransferase gene (AtJMT). When compared with wild-type plants, 5-week-old transgenics exhibited significant alterations (more than a two-fold increase or decrease) in the expression levels of 168 genes. Among them, 80 were up-regulated, including those involved in defense, oxidative stress-tolerance, and senescence. In contrast, the expression of 88 genes, including those that function in photosynthesis and cold/drought-stress responses, was significantly down-regulated. Thus, endogenous generation of methyl jasmonate through AtjMT-overexpression modified the transcript levels of genes previously identified as being jasmonate-responsive. This result confirms that MeJA formation is a key control point for jasmonate-responsive gene expression in plants.
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Jung, C., Yeu, S.Y., Koo, Y.J. et al. Transcript profile of transgenicArabidopsis constitutively producing methyl jasmonate. J. Plant Biol. 50, 12–17 (2007). https://doi.org/10.1007/BF03030594
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DOI: https://doi.org/10.1007/BF03030594