Overexpression of a Plasma Membrane H⁺-ATPase Gene OSA1 Stimulates the Uptake of Primary Macronutrients in Rice Roots.

ABSTRACT: Plasma membrane (PM) H⁺-ATPase is a master enzyme involved in various plant physiological processes, such as stomatal movements in leaves and nutrient uptake and transport in roots. Overexpression of Oryza sativa PM H⁺-ATPase 1 (OSA1) has been known to increase NH₄⁺ uptake in rice roots. Although electrophysiological and pharmacological experiments have shown that the transport of many substances is dependent on the proton motive force provided by PM H⁺-ATPase, the exact role of PM H⁺-ATPase on the uptake of nutrients in plant roots, especially for the primary macronutrients N, P, and K, is still largely unknown. Here, we used OSA1 overexpression lines (OSA1-oxs) and gene-knockout osa1 muta

SUBMITTER: Ding M 

PROVIDER: S-EPMC9697395 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature