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Gene Review

NHX2  -  K+/H+ exchanger

Arabidopsis thaliana

Synonyms: ATNHX2, T9J14.2, T9J14_2, sodium hydrogen exchanger 2
 
 
 
 
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High impact information on NHX2

  • Together, these results implicate AtNHX2 and 5, together with AtNHX1, as salt tolerance determinants, and indicate that AtNHX2 has a major function in vacuolar compartmentalization of Na+ [1].
  • Seedling steady-state mRNA levels of AtNHX1 and AtNHX2 increase similarly after treatment with NaCl, an equi-osmolar concentration of sorbitol, or ABA, whereas AtNHX5 transcript abundance increases only in response to salt treatment [1].
 

Associations of NHX2 with chemical compounds

  • AtNHX1 and AtNHX2 transcripts accumulate in response to ABA but not to NaCl in the aba2-1, mutant indicating that the osmotic responsiveness of these genes is ABA-dependent [1].
 

Other interactions of NHX2

  • Similar to AtNHX1, AtNHX2 is localized to the tonoplast of plant cells [1].

References

  1. Differential expression and function of Arabidopsis thaliana NHX Na+/H+ antiporters in the salt stress response. Yokoi, S., Quintero, F.J., Cubero, B., Ruiz, M.T., Bressan, R.A., Hasegawa, P.M., Pardo, J.M. Plant J. (2002) [Pubmed]
 
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