RT Journal Article T1 Plant Transcription Factors from the Homeodomain-Leucine Zipper Family I. Role in Development and Stress Responses. A1 Perotti, María Florencia A1 Ribone, Pamela Anahí A1 Chan, Raquel Lía K1 Fisiología vegetal K1 Factores de transcripción K1 Biotecnología AB In front of stressful conditions plants display adaptation mechanisms leading to changes in their morphology, physiology, development and molecular composition. Transcription factors (TFs) play crucial roles in these complex adaptation processes. This work is focused in the homeodomain-leucine zipper I (HD-Zip I) family of TFs, unique to plants. First discovered in 1991, they were identified and isolated from monocotyledonous and dicotyledonous plants showing high structural similarity and diversified functions. These TFs have, besides the homeodomain and leucine zipper, conserved motifs in their carboxy-termini allowing the interaction with the basal machinery and with other regulatory proteins. The model dicotyledonous plant Arabidopsis thaliana has 17 HD-Zip I members; most of them regulated by external stimuli and hormones. These TFs are involved in key developmental processes like root and stem elongation, rosette leaves morphology determination, inflorescence stem branching, flowering and pollen hydration. Moreover, they are key players in responses to environmental stresses and illumination conditions. Several HD-Zip I encoding genes from different species were protected in patents because their overexpression or mutation generates improved agronomical phenotypes. Here we discuss many aspects about these TFs including structural features, biological functions and their utilization as biotechnological tools to improve crops. PB Wiley YR 2017 FD 2017-03-24 LK https://hdl.handle.net/10630/41458 UL https://hdl.handle.net/10630/41458 LA eng NO Perotti, M.F., Ribone, P.A. and Chan, R.L. (2017), Plant transcription factors from the homeodomain-leucine zipper family I. Role in development and stress responses. IUBMB Life, 69: 280-289. https://doi.org/10.1002/iub.1619 NO https://openpolicyfinder.jisc.ac.uk/id/publication/3647?from=single_hit NO Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) NO Agencia Nacional de Promoción Científica y Tecnológica NO Universidad Nacional del Litoral NO PICT 2014 3779 NO PICT 2014 3300 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026