Gene Details:

• Gene ID: TraesCS2A02G407700
• Gene Symbol: TaAQP8
• Gene Name: aquaporin 8
• Genome: Chinese_Spring1.0
• Species: Triticum aestivum

Functional Descriptions:

• Overexpression of a Wheat Aquaporin Gene, TaAQP8, Enhances Salt Stress Tolerance in Transgenic Tobacco.
• Transient expression of TaAQP8–green fluorescent protein (GFP) fusion protein revealed its localization in the plasma membrane. TaAQP8 exhibited water channel activity in Xenopus laevis oocytes.
• Investigation showed that up-regulation of TaAQP8 under salt stress involves ethylene and H2O2 signaling, with ethylene causing a positive effect and H2O2 acting as a negative factor.
• Overexpression of TaAQP8 in tobacco increased root elongation compared with controls under salt stress. The roots of transgenic plants also retained a high K+/Na+ ratio and Ca2+ content, but reduced H2O2 accumulation by an enhancement of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activities under salt stress.
• Our results demonstrate that TaAQP8 confers salt stress tolerance not only by retaining high a K+/Na+ ratio and Ca2+ content, but also by reducing H2O2 accumulation and membrane damage by enhancing the antioxidant system.

Function-related keywords:

• root ,  stress ,  salt ,  tolerance ,  ethylene ,  root-elongation ,  salt-tolerance ,  salt-stress ,  stress-tolerance ,  plasma-membrane ,  catalase ,  aquaporin-water-channel ,  ethylene-content ,  h2o2 ,  protein

Literature:

• Overexpression of a wheat aquaporin gene, TaAQP8, enhances salt stress tolerance in transgenic tobacco.   DOI:  10.1093/pcp/pcs154 ;  PMID:  23161856

Related News:

Gene Resources:

• NCBI ID: HQ650110.1
• UniProt accessions: G3E8E2

Orthologs:

Sequences: