Overexpression of Thellungiella halophila H+-pyrophosphatase gene improves low phosphate tolerance in maize.

ABSTRACT: Low phosphate availability is a major constraint on plant growth and agricultural productivity. Engineering a crop with enhanced low phosphate tolerance by transgenic technique could be one way of alleviating agricultural losses due to phosphate deficiency. In this study, we reported that transgenic maize plants that overexpressed the Thellungiella halophila vacuolar H(+)-pyrophosphatase gene (TsVP) were more tolerant to phosphate deficit stress than the wild type. Under phosphate sufficient conditions, transgenic plants showed more vigorous root growth than the wild type. When phosphate deficit stress was imposed, they also developed more robust root systems than the wild type, this advantage facilitated phosphate uptake, which meant that transgenic plants accumulated more phosphorus. So

SUBMITTER: Pei L 

PROVIDER: S-EPMC3431357 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature