H+-pyrophosphatase from Salicornia europaea enhances tolerance to low phosphate under salinity in Arabidopsis

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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.

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Lv, S., Jiang, P., Wang, D., & Li, Y. (2016). H+-pyrophosphatase from Salicornia europaea enhances tolerance to low phosphate under salinity in Arabidopsis. Plant Signaling and Behavior, 11(1). https://doi.org/10.1080/15592324.2015.1128615

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