A Two-Staged Model of Na+ Exclusion in Rice Explained by 3D Modeling of HKT Transporters and Alternative Splicing

• Published in: PloS one Vol. 7; no. 7; p. e39865
• Main Authors: Cotsaftis, Olivier, Plett, Darren, Shirley, Neil, Tester, Mark, Hrmova, Maria
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 11.07.2012; Public Library of Science (PLoS)
• Subjects: Abiotic stress; Abundance; Accumulation; Alleles; Alternative Splicing; Arabidopsis; Biology; Cation Transport Proteins - chemistry; Cation Transport Proteins - genetics; Cation Transport Proteins - metabolism; Cellulose; Cluster analysis; Complexity; Computer Science; Crystal structure; Crystallography, X-Ray; Gene Expression Regulation, Plant; Genes; Genomes; Genomics; Ion Transport; Leaves; Modelling; Models, Molecular; Oryza - genetics; Oryza - metabolism; Oryza sativa; Photosynthesis; Plant Leaves - genetics; Plant Leaves - metabolism; Plant Proteins - chemistry; Plant Proteins - genetics; Plant Proteins - metabolism; Plant Roots - genetics; Plant Roots - metabolism; Plant Shoots - genetics; Plant Shoots - metabolism; Potassium - metabolism; Protein Conformation; Protein Isoforms - chemistry; Protein Isoforms - genetics; Protein Isoforms - metabolism; Protein structure; Proteins; Quantitative analysis; RNA, Messenger - genetics; RNA, Messenger - metabolism; Salinity; Salinity effects; Salinity tolerance; Salt-Tolerant Plants - genetics; Salt-Tolerant Plants - metabolism; Sodium - metabolism; Symporters - chemistry; Symporters - genetics; Symporters - metabolism; Three dimensional models; Tissues; Transcription; Transpiration; Xylem; Australia; South Australia Australia

The HKT family of Na(+) and Na(+)/K(+) transporters is implicated in plant salinity tolerance. Amongst these transporters, the cereal HKT1;4 and HKT1;5 are responsible for Na(+) exclusion from photosynthetic tissues, a key mechanism for plant salinity tolerance. It has been suggested that Na(+) is r...