Distinct sensitivities to phosphate deprivation suggest that RGF peptides play disparate roles in Arabidopsis thaliana root development.

ABSTRACT: Growing agricultural demands in the face of impending inorganic phosphate (Pi) shortages underscore a need for a better understanding of plant development under conditions of Pi deprivation. Pi is an essential nutrient that is a major component of fertilizer. Plants have evolved strategies to improve the acquisition of this nutrient by altering root development under shortage conditions. We show that signaling peptides thought to act redundantly in Arabidopsis thaliana development have distinct functions in response to Pi deprivation. Using microscopy and confocal imaging, roots were analyzed for growth rate and cellular composition. Using expression microarrays, genes influencing development in response to phosphate deprivation were identified. ROOT GROWTH FACTOR1 (RGF1) and RGF2 influenc

SUBMITTER: Cederholm HM 

PROVIDER: S-EPMC4497932 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature