SciELO - Scientific Electronic Library Online

 
vol.79 número2Desarrollo de la cutícula y ceras epicuticulares en el pericarpo de girasol (Helianthus annuus L.) bajo déficit hídrico moderado en condiciones de campoRespuesta de la vegetación a un fuego controlado en la Provincia Fitogeográfica del Monte, Argentina índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Bookmark


Phyton (Buenos Aires)

versión On-line ISSN 1851-5657

Resumen

FENG¹, RJ et al. Cloning and expression analysis of rubredoxin from cold-treated banana leaves. Phyton (B. Aires) [online]. 2010, vol.79, n.2, pp. 163-168. ISSN 1851-5657.

A banana (Musa AAA, Cavendish subgroup cv. Brazil) cDNA encoding a putative rubredoxin-like protein (MaRd1) was obtained from total RNA isolated from cold-treated banana leaves using rapid amplification of cDNA ends (RACE) technique. MaRd1 cDNA contained 597 nucleotides encoding 198 amino acids in the open reading frame. MaRd1 protein showed 56% amino acid identity with that of Pyrococcus furiosus rubredoxin (P24297). A chloroplast transit peptide and a transmembrane region were detected at the N-terminus and the C-terminus, respectively, of the deduced amino acid sequence of MaRd1 gene. Southern blotting revealed the occurrence of at least two copies of MaRd1 in the banana genome. Real time quantitative RT-PCR analysis revealed that the expression of MaRd1 gene was mainly in leaves, pseudo-stems and immature fruits, while it was barely detectable in roots and flowers. Cold and salt stresses induced higher levels of MaRd1 transcript accumulation in leaves. This finding indicated a role of MaRd1 in the response to these abiotic stresses.

Palabras llave : Rubredoxin; Expression; Banana; Stress response.

        · resumen en Español     · texto en Inglés     · pdf en Inglés