News: Auxin influence on wood formation has been determined
Wood is essential to preserve plant ecosystems on Earth. At the cellular level, wood is the result of a complex process of vascular cell differentiation that requires plant hormone auxin. This hormone travels through the plant from cell to cell thanks to carriers that act like doors at the cell membrane. Influx carriers facilitate the exit of auxin from cells while efflux carriers drive auxin entrance into the cells. Now, experts at the University of Barcelona (UB) and CSIC researchers at the Centre for Research in Agricultural Genomics (CRAG) propose that transport of auxin by influx carriers is a determinant in vascular patterning and differentiation during plant development.
Marta Ibañes, lecturer in the Department of Structure and Constituents of Matter of the UB, and Ana Caño, CSIC-CRAG researcher, have led the study, published in Plos Genetics, which is the result of an interdisciplinary research effort carried out for the last five years.
N. Fàbregas, P. Formosa-Jordan , A. Confraria, R. Siligato, J. M. Alonso, R. Swarup, M. J. Bennett, A. Pekka, A. Caño-Delgado, M. Ibañes. “Auxin influx carriers control vascular patterning and xylem differentiation in Arabidopsis thaliana”. Plos Genetics, 2015. DOI: 10.1371/journal.pgen.1005183