Plastid translation is essential for lateral root stem cell patterning in Arabidopsis thaliana.

ABSTRACT: The plastid evolved from a symbiotic cyanobacterial ancestor and is an essential organelle for plant life, but its developmental roles in roots have been largely overlooked. Here, we show that plastid translation is connected to the stem cell patterning in lateral root primordia. The RFC3 gene encodes a plastid-localized protein that is a conserved bacterial ribosomal protein S6 of β/γ proteobacterial origin. The rfc3 mutant developed lateral roots with disrupted stem cell patterning and associated with decreased leaf photosynthetic activity, reduced accumulation of plastid rRNAs in roots, altered root plastid gene expression, and changes in expression of several root stem cell regulators. These results suggest that deficiencies in plastid function affect lateral root stem ce

SUBMITTER: Nakata MT 

PROVIDER: S-EPMC5861355 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature