Analysis of the essential DNA region for OsEBP-89 promoter in response to methyl jasmonic acid

Sci China C Life Sci. 2008 Mar;51(3):280-5. doi: 10.1007/s11427-008-0041-9.

Abstract

In rice, the characterization of OsEBP-89 is inducible by various stress-or hormone-stimuli, including ethylene, abscisic acid (ABA), jasmonate acid (JA), drought and cold. Here, we report the investigation of essential DNA region within OsEBP-89 promoter for methyl jasmonic acid (MeJA) induction. PLACE analysis indicates that this promoter sequence contains multiple potential elements in response to various stimuli. First, we fused this promoter with GUS gene and analyzed its expression under MeJA treatment through Agrobacterium infiltration mediating transient expression in tobacco leaves. Our results revealed that this chimeric gene could be inducible by MeJA in tobacco leaves. To further determine the crucial sequences responsible for MeJA induction, we generated a series of deletion promoters which were fused with GUS reporter gene respectively. The results of transient expression of GUS gene driven by these mutant promoters show that the essential region for MeJA induction is positioned in the region between -1200 and -800 in OsEBP-89 promoter containing a G-box (-1127), which is distinct from the essential region containing ERE (-562) for ACC induction. In all, our finding is helpful in understanding the molecular mechanism of OsEBP-89 expression under different stimuli.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetates / metabolism
  • Acetates / pharmacology*
  • Cyclopentanes / metabolism
  • Cyclopentanes / pharmacology*
  • DNA, Plant / genetics*
  • Gene Expression Regulation, Plant / drug effects
  • Genome, Plant / genetics*
  • Nicotiana / drug effects
  • Nicotiana / genetics
  • Nicotiana / metabolism
  • Oryza / genetics*
  • Oryza / metabolism
  • Oxylipins / metabolism
  • Oxylipins / pharmacology*
  • Plant Leaves / drug effects
  • Plant Leaves / genetics
  • Plant Leaves / metabolism
  • Plant Proteins / genetics*
  • Plant Proteins / metabolism
  • Plants, Genetically Modified
  • Promoter Regions, Genetic / genetics*
  • Sequence Analysis, DNA

Substances

  • Acetates
  • Cyclopentanes
  • DNA, Plant
  • Oxylipins
  • Plant Proteins
  • methyl jasmonate