N-glycans influence on root hair landscape of Arabidopsis seedlings

While alterations in ER-localized attachment of high mannose N-glycans results in severe developmental defects, the impact of Golgi-localized complex N-glycan modification, in particular on root development, has not been studied in detail. We report that impairment of complex-type N-glycosylation results in an earlier and increased root-hair elongation. RNA-seq experiments suggest that gntI roots have permanently elevated nutrient-, hypoxia- and defense-stress responses, which might be a consequence of the altered auxin responsiveness.