These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Coordinated transcriptional regulation of the divinyl ether biosynthetic genes in tobacco by signal molecules related to defense.
    Author: Fammartino A, Verdaguer B, Fournier J, Tamietti G, Carbonne F, Esquerré-Tugayé MT, Cardinale F.
    Journal: Plant Physiol Biochem; 2010 Apr; 48(4):225-31. PubMed ID: 20137961.
    Abstract:
    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.
    [Abstract] [Full Text] [Related] [New Search]