A process that is carried out at the cellular level which results in the formation of ER (endoplasmic reticulum) body. ER body is a compartment found in plant cells that is derived from the ER. The structures have a characteristic shape and size (10 mm long and 0.5 mm wide) and are surrounded with ribosomes. They have been found in Arabidopsis thaliana and related Brassicaceae species.
endoplasmic reticulum body organization and biogenesis