GmPHR25, a GmPHR member up-regulated by phosphate starvation, controls phosphate homeostasis in soybean.

ABSTRACT: As an essential nutrient element, phosphorus (P) plays an important role in plant growth and development. Low P availability is a limiting factor for crop production, especially for legume crops (e.g. soybean), which require additional P to sustain nitrogen fixation through symbiotic associations with rhizobia. Although PHOSPHATE STARVATION RESPONSE 1 (PHR1) or PHR1-like is considered as a central regulator of phosphate (Pi) homeostasis in several plant species, it remains undefined in soybean. In this study, 35 GmPHR members were cloned from the soybean genome and expression patterns in soybean were assayed under nitrogen (N) and P deficiency conditions. GmPHR25, which is up-regulated in response to Pi starvation, was then overexpressed in soybean hairy roots in vitro and in vivo to inves

SUBMITTER: Xue YB 

PROVIDER: S-EPMC5853305 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature