Plant Trans-Golgi Network/Early Endosome pH regulation requires Cation Chloride Cotransporter (CCC1).

Plant cells maintain a low luminal pH in the trans-Golgi-network/early endosome (TGN/EE), the organelle in which the secretory and endocytic pathways intersect. Impaired TGN/EE pH regulation translates into severe plant growth defects. The identity of the proton pump and proton/ion antiporters that regulate TGN/EE pH have been determined, but an essential component required to complete the TGN/EE membrane transport circuit remains unidentified - a pathway for cation and anion efflux.

Diverse Roles of MAX1 Homologues in Rice.

Cytochrome P450 enzymes encoded by ()-like genes produce most of the structural diversity of strigolactones during the final steps of strigolactone biosynthesis. The diverse copies of in provide a resource to investigate why plants produce such a wide range of strigolactones. Here we performed in silico analyses of transcription factors and microRNAs that may regulate each rice , and compared the results with available data about expression profiles and genes co-expressed with genes.

A single nucleotide substitution in TaHKT1;5-D controls shoot Na accumulation in bread wheat.

Improving salinity tolerance in the most widely cultivated cereal, bread wheat (Triticum aestivum L.), is essential to increase grain yields on saline agricultural lands. A Portuguese landrace, Mocho de Espiga Branca accumulates up to sixfold greater leaf and sheath sodium (Na ) than two Australian cultivars, Gladius and Scout, under salt stress in hydroponics.

Barley sodium content is regulated by natural variants of the Na transporter HvHKT1;5.

During plant growth, sodium (Na) in the soil is transported via the xylem from the root to the shoot. While excess Na is toxic to most plants, non-toxic concentrations have been shown to improve crop yields under certain conditions, such as when soil K is low. We quantified grain Na across a barley genome-wide association study panel grown under non-saline conditions and identified variants of a Class 1 HIGH-AFFINITY-POTASSIUM-TRANSPORTER (HvHKT1;5)-encoding gene responsible for Na content variation under these conditions.