Amino acid conjugates of jasmonic acid induce jasmonate-responsive gene expression in barley (Hordeum vulgare L.) leaves.
Leaves of barley (Hordeum vulgare L. cv. Salome) treated with jasmonic acid (JA), its methyl ester (JM), or its amino acid conjugates exhibit up-regulation of specific genes and down-regulation of house-keeping genes. This transcriptional regulation exhibits several specificities. (i) The (-)-enantiomers are more active, and conjugates are mainly active if they carry an L-amino acid moiety. (ii) The various JA-responsive genes respond differentially to enantiomeric and chiralic forms. (iii) Both JA and its amino acid conjugates exhibiting no or negligible interconversion induce/repress genes.
Kramell
R
R
Institute of Plant Biochemistry, Halle/Saale, Germany.
Miersch
O
O
Hause
B
B
Ortel
B
B
Parthier
B
B
Wasternack
C
C
D000596:Amino Acids; D003517:Cyclopentanes / Q000737:chemistry / Q000378:metabolism* / Q000494:pharmacology*; D008401:Gas Chromatography-Mass Spectrometry; D018506:Gene Expression Regulation, Plant / Q000187:drug effects*; D017343:Genes, Plant; D001467:Hordeum / Q000187:drug effects / Q000378:metabolism*; D015394:Molecular Structure; D054883:Oxylipins; D010937:Plant Growth Regulators / Q000494:pharmacology*; D018515:Plant Leaves; D018629:Spectrometry, Mass, Secondary Ion; D013237:Stereoisomerism; D013329:Structure-Activity Relationship; D014158:Transcription, Genetic / Q000187:drug effects*
D000596:Amino Acids; D003517:Cyclopentanes; D054883:Oxylipins; D010937:Plant Growth Regulators; C011006:jasmonic acid