Transcription profiling of Arabidopsis thaliana wild-type and pnp mutant plants with respect to their morphology, metabolite profiles, and transcriptomes

ABSTRACT: A prominent enzyme in organellar RNA metabolism is the exoribonuclease polynucleotide phosphorylase (PNPase), whose reversible activity is governed by the nucleotides diphosphate-inorganic phosphate ratio. In Chlamydomonas reinhardtii, PNPase regulates chloroplast transcript accumulation in response to phosphorus (P) starvation, and PNPase expression is repressed by the response regulator PSR1 under these conditions. Here, we investigated the role of PNPase in the Arabidopsis (Arabidopsis thaliana) P deprivation response by comparing wild-type and pnp mutant plants with respect to their morphology, metabolite profiles, and transcriptomes. We found that P-deprived pnp mutants develop aborted clusters of lateral roots, which are characterized by decreased auxin responsiveness and cell divisi

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Chloe Marchive 

PROVIDER: E-GEOD-18071 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress