skip to main content

Early salt stress effects on the differential expression of vacuolar H(+)-ATPase genes in roots and leaves of Mesembryanthemum crystallinum

Löw, R ; Rockel, B ; Kirsch, M ; Ratajczak, R ; Hörtensteiner, S ; Martinoia, E ; Lüttge, U ; Rausch, T

Plant physiology, January 1996, Vol.110(1), pp.259-65 [Periódico revisado por pares]

Texto completo disponível

Citações Citado por
  • Título:
    Early salt stress effects on the differential expression of vacuolar H(+)-ATPase genes in roots and leaves of Mesembryanthemum crystallinum
  • Autor: Löw, R ; Rockel, B ; Kirsch, M ; Ratajczak, R ; Hörtensteiner, S ; Martinoia, E ; Lüttge, U ; Rausch, T
  • Assuntos: Gene Expression Regulation, Plant ; Genes, Plant ; Plants -- Genetics ; Proton-Translocating Atpases -- Genetics ; Sodium Chloride -- Pharmacology ; Vacuoles -- Enzymology
  • É parte de: Plant physiology, January 1996, Vol.110(1), pp.259-65
  • Descrição: In Mesembryanthemum crystallinum, the salt stress-induced metabolic switch from C3 photosynthesis to Crassulacean acid metabolism is accompanied by major changes in gene expression. However, early effects of salt exposure (i.e. prior to Crassulacean acid metabolism induction) on genes coding for vacuolar transport functions have not yet been studied. Therefore, the expression of vacuolar H(+)-ATPase genes was analyzed in different organs of 4-week-old plants stressed with 400 mM NaCl for 3, 8, or 24 h. Partial cDNAs for the subunits A, B, and c were cloned and used as homologous probes for northern blot analysis. In control plants, the mRNA levels for the different subunits showed organ-specific differences. In fully expanded leaves, subunit c mRNA was very low but increased transiently during the light period. Plant organs also differed in their salt-stress response. In roots and young leaves, mRNA levels for all three subunits increased about 2-fold compared to control plants, whereas...
  • Idioma: Inglês

Buscando em bases de dados remotas. Favor aguardar.