Inheritance of Capsule and the Manner of Cell-Wall Formation in Bacillus anthracis

Abstract
During growth in broth, B. anthracis strain 2160S became capsulated only towards the end of exponential growth. An inoculum of fully capsulated organisms formed chains which were non-capsulated save at their tips and at occasional junctions between neighbouring cells. This appearance suggested that new non-capsulated wall was synthesized at the equator of each organism but not at the poles or throughout the existing wall.