Coordinated transcriptional regulation of the divinyl ether biosynthetic genes in tobacco by signal molecules related to defense
Copyright 2010 Elsevier Masson SAS. All rights reserved.
| Publié dans: | Plant physiology and biochemistry : PPB. - 1991. - 48(2010), 4 vom: 01. Apr., Seite 225-31 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2010
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| Accès à la collection: | Plant physiology and biochemistry : PPB |
| Sujets: | Journal Article Research Support, Non-U.S. Gov't Acetates Amino Acids, Cyclic Cyclopentanes Oxylipins Plant Growth Regulators Plant Proteins Vinyl Compounds vinyl ether plus... |
| Résumé: | Copyright 2010 Elsevier Masson SAS. All rights reserved. In tobacco, 9-divinyl ethers (DVEs) produced by the lipoxygenase NtLOX1 and DVE synthase NtDES1 are important for full resistance to pathogens. In this work, the regulation of NtLOX1 and NtDES1 expression by signal molecules was investigated in LOX1 promoter-reporter transgenic plants and by RT-qPCR. Methyl jasmonate, ACC and elicitor were shown to coordinately trigger the DVE pathway. Induction was strongly attenuated in the presence of salicylic acid, which seems to act as a negative regulator of the 9-DVE biosynthetic enzymes. Our data suggest that, in tobacco, DVE biosynthesis is cross-regulated by jasmonates, and by other hormonal and signal molecules such as ethylene and SA |
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| Description: | Date Completed 15.09.2010 Date Revised 13.12.2023 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1873-2690 |
| DOI: | 10.1016/j.plaphy.2010.01.012 |