Enhanced Growth Performance and Salinity Tolerance in Transgenic Switchgrass via Overexpressing Vacuolar Na⁺ (K⁺)/H⁺ Antiporter Gene (PvNHX1).

ABSTRACT: Switchgrass (Panicum virgatum L.) has been increasingly recognized as one of the most valuable perennial bioenergy crop. To improve its biomass production, especially under salt stress, we isolated a putative vacuolar Na⁺ (K⁺)/H⁺ antiporter gene from switchgrass and designated as PvNHX1. Subcellular localization revealed that this protein was localized mainly on the vacuole membrane. The PvNHX1 was found to be expressed throughout the entire growth period of switchgrass, exhibited preferentially expressed in the leaf tissue, and highly induced by salt stress. Transgenic switchgrass overexpressing PvNHX1 showed obvious advantages with respect to plant height and leaf development compared to the wild-type (WT) and transgenic contro

SUBMITTER: Huang Y 

PROVIDER: S-EPMC5376569 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature