Expression analysis of developmental stages of Arabidopsis roots exposed to sulfur deficient media

ABSTRACT: To understand the effect of sulfur deficiency on developmental stages in the root, we dissected the root into four developmental zones after exposure to sulfur deficiency 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 sulfur deficient media

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Anjali Iyer-Pascuzzi 

PROVIDER: E-GEOD-30100 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress