title: H(+)-pyrophosphatase from Salicornia europaea enhances tolerance to low phosphate under salinity in Arabidopsis.
abstract: Increasing soil salinity threatens crop productivity worldwide. High soil salinity is usually accompanied by the low availability of many mineral nutrients. Here, we investigated the potential role that the H(+)- PPase could play in optimizing P use efficiency under salinity in plants. Transgenic Arabidopsis plants overexpressing either SeVP1 or SeVP2 from Salicornia europaea outperformed the wild-types under low phosphate (Pi) as well as low Pi plus salt conditions. Our results suggested that H(+)-PPase could increase external Pi acquisition through promoting root development and upregulating phosphate transporters, thus to protect plants from Pi limiting stress. This study provides a potential strategy for improving crop yields challenged by the co-occurrence of abiotic stresses.
authors.affiliation: a Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences , Beijing 100093 , China.
authors.forename: Sulian
authors.initials: S
authors.lastname: Lv
authors.affiliation: a Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences , Beijing 100093 , China.
authors.forename: Ping
authors.initials: P
authors.lastname: Jiang
authors.affiliation: a Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences , Beijing 100093 , China.
authors.forename: Duoliya
authors.initials: D
authors.lastname: Wang
authors.affiliation: a Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences , Beijing 100093 , China.
authors.forename: Yinxin
authors.initials: Y
authors.lastname: Li
mesh_terms: D000222:Adaptation, Physiological / Q000187:drug effects*; D017360:Arabidopsis / Q000187:drug effects / Q000235:genetics / Q000254:growth & development / Q000502:physiology*; D019663:Chenopodiaceae / Q000187:drug effects / Q000201:enzymology*; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D017343:Genes, Plant; D043564:Inorganic Pyrophosphatase / Q000378:metabolism*; D010641:Phenotype; D010710:Phosphates / Q000494:pharmacology*; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D030821:Plants, Genetically Modified; D054712:Salinity
chemical_list: D010710:Phosphates; D010940:Plant Proteins; D043564:Inorganic Pyrophosphatase
keywords: Co-occurrence of stresses; H+-pyrophosphatase; low phosphate; salicornia europaea; salt