Transcriptomics

Dataset Information

8

Transcription profiling by array of Arabidopsis roots after growth in low pH media


ABSTRACT: To understand the effect of low pH on developmental stages in the root, we dissected the root into four developmental zones after exposure to low pH and expression profiled each zone. Stress responses in plants are tightly coordinated with developmental processes, but the interaction between these pathways is poorly understood. Here we use genome-wide assays at high spatial and temporal resolution to understand the processes that lnk development and stress in the Arabidopsis root. Our meta-analysis finds little evidence for a universal stress response. Common stress responses appear to exists and, analagous to animal systems, many of them show cell-type specificity, suggesting a convergent evolutionary theme in multicellular organisms. Common stress responses may be mediated by cell identity regulators, as mutations in these genes resulted in altered responses to stress. Our results reveal surprising linkages between stress and development at cellular resolution, and show the power of multiple genome-wide datasets to elucidate biological processes. 2 replicates each of 4 developmental stages exposed to standard and low pH

OTHER RELATED OMICS DATASETS IN: E-GEOD-30095

ORGANISM(S): Arabidopsis thaliana  

SUBMITTER: Anjali S Iyer-Pascuzzi   Philip N Benfey 

PROVIDER: E-GEOD-30096 | ArrayExpress | 2011-11-23

SECONDARY ACCESSION(S): GSE30096PRJNA155175

REPOSITORIES: GEO, ArrayExpress

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Publications

Cell identity regulators link development and stress responses in the Arabidopsis root.

Iyer-Pascuzzi Anjali S AS   Jackson Terry T   Cui Hongchang H   Petricka Jalean J JJ   Busch Wolfgang W   Tsukagoshi Hironaka H   Benfey Philip N PN  

Developmental cell 20111001 4


Stress responses in plants are tightly coordinated with developmental processes, but interaction of these pathways is poorly understood. We used genome-wide assays at high spatiotemporal resolution to understand the processes that link development and stress in the Arabidopsis root. Our meta-analysis finds little evidence for a universal stress response. However, common stress responses appear to exist with many showing cell type specificity. Common stress responses may be mediated by cell ident  ...[more]

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