Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Genomic and Transcriptomic Compilation of Chloroplast Ionic Transporters of Physcomitrella patens. Study of NHAD Transporters in Na+ and K+ Homeostasis
Año:2017
Áreas de investigación
  • Biología celular
Datos
Descripción
K+ is widely used by plant cells, whereas Na+ can easily reach toxic levels during plant growth, which typically occurs in saline environments; however, the effects and functions in the chloroplast have been only roughly estimated. Traditionally, the occurrence of ionic fluxes across the chloroplast envelope or the thylakoid membranes has been mostly deduced from physiological measurements or from knowledge of chloroplast metabolism. However, many of the proteins involved in these fluxes have not yet been characterized. Based on genomic and RNA sequencing (RNA-seq) analyses, we present a comprehensive compilation of genes encoding putative ion transporters and channels expressed in the chloroplasts of the moss Physcomitrella patens, with a special emphasis on those related to Na+ and K+ fluxes. Based on the functional characterization of nhad mutants, we also discuss the putative role of NHAD transporters in Na+ homeostasis and osmoregulation of this organelle and the putative contribution of chloroplasts to salt tolerance in this moss. We demonstrate that NaCl does not affect the chloroplast functionality in Physcomitrella despite significantly modifying expression of ionic transporters and cellular morphology, specifically the chloroplast ultrastructure, revealing a high starch accumulation. Additionally, NHAD transporters apparently do not play any essential roles in salt tolerance.
Internacional
Si
JCR del ISI
Si
Título de la revista
Plant And Cell Physiology
ISSN
0032-0781
Factor de impacto JCR
4,319
Información de impacto
Datos JCR del año 2015
Volumen
58
DOI
10.1093/pcp/
Número de revista
12
Desde la página
2166
Hasta la página
2178
Mes
DICIEMBRE
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Nancy Ruiz-Lau (CONACYT, México)
  • Autor: Angela Saez. Somolinos
  • Autor: Monica Lanza Lucio (UPM)
  • Autor: Begoña Benito Casado (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Homeostasis iónica y ciclo celular
  • Departamento: Biotecnología - Biología Vegetal
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