Transcription profiling of Arabidopsis roots to investigate early phosphate-deficiency induced signal changes

ABSTRACT: A mutant previously isolated from a screen of EMS-mutagenized Arabidopsis lines, per1, showed normal root hair development under control conditions but displayed an inhibited root hair elongation phenotype upon Pi deficiency. Additionally, the per1 mutant exhibited a pleiotropic phenotype under control conditions, resembling Pi-deficient plants in several aspects. Under Pi deficiency, the accumulation of Pi and iron was increased in the mutant when compared to the wild-type. Inhibition of root hair elongation upon growth on low Pi media was reverted by treatment with the Pi analog phosphite, suggesting that the mutant phenotype is not the result of a defect in Pi sensing. Reciprocal grafting experiments revealed that the mutant rootstock is sufficient to cause the phenotype. Transcriptiona

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Wolfgang Schmidt 

PROVIDER: E-GEOD-15649 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress