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Gene Review

ARF19  -  auxin response factor 19

Arabidopsis thaliana

Synonyms: ARF11, AUXIN RESPONSE FACTOR11, IAA22, T29M8.9, T29M8_9, ...
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High impact information on ARF19


Biological context of ARF19

  • Mutations in ARF19 have little effect on their own, but in combination with mutations in NPH4/ARF7, encoding the most closely related ARF, they cause several phenotypes including a drastic decrease in lateral and adventitious root formation and a decrease in leaf cell expansion [4].
  • NPH4/ARF7 and ARF19 function as transcriptional activators, suggesting that auxin may control senescence in part by activating gene expression [5].

Associations of ARF19 with chemical compounds

  • The data suggest that the ARF7 and ARF19 proteins play essential roles in auxin-mediated plant development by regulating both unique and partially overlapping sets of target genes [2].
  • Here we show that ARF19 and ARF7 not only participate in auxin signaling, but also play a critical role in ethylene responses in Arabidopsis (Arabidopsis thaliana) roots, indicating that the ARFs serve as a cross talk point between the two hormones [3].

Other interactions of ARF19


  1. Developmental specificity of auxin response by pairs of ARF and Aux/IAA transcriptional regulators. Weijers, D., Benkova, E., Jäger, K.E., Schlereth, A., Hamann, T., Kientz, M., Wilmoth, J.C., Reed, J.W., Jürgens, G. EMBO J. (2005) [Pubmed]
  2. Functional genomic analysis of the AUXIN RESPONSE FACTOR gene family members in Arabidopsis thaliana: unique and overlapping functions of ARF7 and ARF19. Okushima, Y., Overvoorde, P.J., Arima, K., Alonso, J.M., Chan, A., Chang, C., Ecker, J.R., Hughes, B., Lui, A., Nguyen, D., Onodera, C., Quach, H., Smith, A., Yu, G., Theologis, A. Plant Cell (2005) [Pubmed]
  3. A role for auxin response factor 19 in auxin and ethylene signaling in Arabidopsis. Li, J., Dai, X., Zhao, Y. Plant Physiol. (2006) [Pubmed]
  4. NPH4/ARF7 and ARF19 promote leaf expansion and auxin-induced lateral root formation. Wilmoth, J.C., Wang, S., Tiwari, S.B., Joshi, A.D., Hagen, G., Guilfoyle, T.J., Alonso, J.M., Ecker, J.R., Reed, J.W. Plant J. (2005) [Pubmed]
  5. AUXIN RESPONSE FACTOR1 and AUXIN RESPONSE FACTOR2 regulate senescence and floral organ abscission in Arabidopsis thaliana. Ellis, C.M., Nagpal, P., Young, J.C., Hagen, G., Guilfoyle, T.J., Reed, J.W. Development (2005) [Pubmed]
  6. PICKLE is required for SOLITARY-ROOT/IAA14-mediated repression of ARF7 and ARF19 activity during Arabidopsis lateral root initiation. Fukaki, H., Taniguchi, N., Tasaka, M. Plant J. (2006) [Pubmed]
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