An Na+/H+ antiporter gene from wheat plays an important role in stress tolerance.
J Biosci
;
2007 Sep; 32(6): 1153-61
Artigo
em Inglês
| IMSEAR
| ID: sea-110714
ABSTRACT
A vacuole Na+/H+ antiporter gene TaNHX2 was obtained by screening the wheat cDNA library and by the 5'-RACE method. The expression of TaNHX2 was induced in roots and leaves by treatment with NaCl, polyethylene glycol (PEG), cold and abscisic acid (ABA). When expressed in a yeast mutant (deltanhx1), TaNHX2 suppressed the salt sensitivity of the mutant,which was deficient in vacuolar Na+/H+ antiporter, and caused partial recovery of growth of delta nhx1 in NaCl and LiCl media. The survival rate of yeast cells was improved by overexpressing the TaNHX2 gene under NaCl, KCl, sorbitol and freezing stresses when compared with the control. The results imply that TaNHX2 might play an important role in salt and osmotic stress tolerance in plant cells.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Pressão Osmótica
/
Proteínas de Plantas
/
Saccharomyces cerevisiae
/
Sorbitol
/
Vacúolos
/
Triticum
/
Dados de Sequência Molecular
/
Cloreto de Sódio
/
Sequência de Aminoácidos
/
Trocadores de Sódio-Hidrogênio
Idioma:
Inglês
Revista:
J Biosci
Ano de publicação:
2007
Tipo de documento:
Artigo
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