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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Gene Review: 

WRKY70  -  WRKY transcription factor 70

Arabidopsis thaliana

Synonyms: ARABIDOPSIS THALIANA WRKY DNA-BINDING PROTEIN 70, ATWRKY70, WRKY DNA-binding protein 70
 
 
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High impact information on WRKY70

  • Epistasis analysis suggested that WRKY70 is downstream of NPR1 in an SA-dependent signal pathway [1].
  • Conversely, antisense suppression of WRKY70 activates JA-responsive/COI1-dependent genes [1].
  • The WRKY70 transcription factor: a node of convergence for jasmonate-mediated and salicylate-mediated signals in plant defense [1].
  • The transcriptional activation of genes involved in plant hormone signaling and synthesis, removal of reactive oxygen species, and defense and abiotic-stress responses, coupled with the susceptibility of the wrky70 and zfar1 mutants, highlights the complex genetic network underlying defense responses to Botrytis in Arabidopsis [2].
  • Gain or loss of WRKY70 function causes opposite effects on JA-mediated resistance to A. brassicicola and the SA-mediated resistance to E. cichoracearum [3].
 

Biological context of WRKY70

  • We demonstrate that the plant-specific transcription factor WRKY70 is a common component in SA- and JA-mediated signal pathways [1].
  • While the up-regulation of WRKY70 caused enhanced resistance to E. cichoracearum, it compromised plant resistance to A. brassicicola [3].
  • Conversely, down-regulation or insertional inactivation of WRKY70 impaired plant resistance to E. cichoracearum [3].

References

  1. The WRKY70 transcription factor: a node of convergence for jasmonate-mediated and salicylate-mediated signals in plant defense. Li, J., Brader, G., Palva, E.T. Plant Cell (2004) [Pubmed]
  2. Expression profiling and mutant analysis reveals complex regulatory networks involved in Arabidopsis response to Botrytis infection. Abuqamar, S., Chen, X., Dhawan, R., Bluhm, B., Salmeron, J., Lam, S., Dietrich, R.A., Mengiste, T. Plant J. (2006) [Pubmed]
  3. WRKY70 modulates the selection of signaling pathways in plant defense. Li, J., Brader, G., Kariola, T., Tapio Palva, E. Plant J. (2006) [Pubmed]
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