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

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Gene Review: 

ARR15  -  two-component response regulator ARR15

Arabidopsis thaliana

Synonyms: F25A4.14, F25A4_14, RESPONSE REGULATOR 15, response regulator 15
 
 
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High impact information on ARR15

  • Among 10 members of the type-A ARR family, the cytokinin-induced expression of ARR15 in roots is selectively impaired in the cre1-1 mutant, which carries a mutation in the AHK4 gene, suggesting a link between this type-A response regulator and the AHK4-mediated cytokinin signal transduction in roots [1].
  • The type-A response regulator, ARR15, acts as a negative regulator in the cytokinin-mediated signal transduction in Arabidopsis thaliana [1].
  • While the T-DNA insertion mutant (arr15-1) showed no apparent phenotype, the cytokinin-independent overexpression of ARR15 in ARR15-ox plants resulted in a reduced sensitivity toward exogenously applied cytokinin, not only in elongation of roots in plants, but also in green callus formation (or shoot formation) in explants [1].
  • The results for transgenic plants expressing promoter::GUS or promoter::LUC fusion genes showed that both the ARR15 and the ARR16 gene products are accumulated upon cytokinin treatment in roots [2].
 

Associations of ARR15 with chemical compounds

  • Cytokinin-induced expressions of certain type-A ARRs were also down-regulated in ARR15-ox plants [1].

References

  1. The type-A response regulator, ARR15, acts as a negative regulator in the cytokinin-mediated signal transduction in Arabidopsis thaliana. Kiba, T., Yamada, H., Sato, S., Kato, T., Tabata, S., Yamashino, T., Mizuno, T. Plant Cell Physiol. (2003) [Pubmed]
  2. Characterization of the ARR15 and ARR16 response regulators with special reference to the cytokinin signaling pathway mediated by the AHK4 histidine kinase in roots of Arabidopsis thaliana. Kiba, T., Yamada, H., Mizuno, T. Plant Cell Physiol. (2002) [Pubmed]
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