Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Phylogenetic analysis of K+ transporters in bryophytes, lycophytes, and flowering plants indicates a specialization of vascular plants.
Áreas de investigación
  • Biología vegetal, animal y ecología
As heritage from early evolution, potassium (K(+)) is absolutely necessary for all living cells. It plays significant roles as stabilizer in metabolism and is important for enzyme activation, stabilization of protein synthesis, and neutralization of negative charges on cellular molecules as proteins and nucleic acids. Land plants even enlarged this spectrum of K(+) utilization after having gone ashore, despite the fact that K(+) is far less available in their new oligotrophic habitats than in sea water. Inevitably, plant cells had to improve and to develop unique transport systems for K(+) accumulation and distribution. In the past two decades a manifold of K(+) transporters from flowering plants has been identified at the molecular level. The recently published genome of the fern ally Selaginella moellendorffii now helps in providing a better understanding on the molecular changes involved in the colonization of land and the development of the vasculature and the seeds. In this article we present an inventory of K(+) transporters of this lycophyte and pigeonhole them together with their relatives from the moss Physcomitrella patens, the monocotyledon Oryza sativa, and two dicotyledonous species, the herbaceous plant Arabidopsis thaliana, and the tree Populus trichocarpa. Interestingly, the transition of green plants from an aqueous to a dry environment coincides with a dramatic reduction in the diversity of voltage-gated potassium channels followed by a diversification on the basis of one surviving K(+) channel class. The first appearance of K(+) release (K(out)) channels in S. moellendorffii that were shown in Arabidopsis to be involved in xylem loading and guard cell closure coincides with the specialization of vascular plants and may indicate an important adaptive step.
Título de la revista
Frontiers in Plant Science
Factor de impacto JCR
Información de impacto
Número de revista
Desde la página
Hasta la página
Esta actividad pertenece a memorias de investigación
  • Autor: Judith Lucia Gomez Porras (UPM)
  • Autor: Diego Mauricio Riaño-Pachón (Universidad de los Andes, Bogotá, Colombia)
  • Autor: Begoña Benito Casado (UPM)
  • Autor: Rosario Haro Hidalgo (UPM)
  • Autor: Kamil Sklodowski (Universität Potsdam, Germany)
  • Autor: Alonso Rodriguez Navarro (UPM)
  • Autor: Ingo Dreyer . (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Homeostasis iónica y ciclo celular
  • Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
  • Grupo de Investigación: Redes Reguladoras del Desarrollo y Respuesta a Estrés en Plantas
  • Grupo de Investigación: Biotecnología de Proteínas Vegetales
  • Departamento: Biotecnología
S2i 2023 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)