Über den Aufbau und die Vermehrungsmöglichkeiten von stäbchenförmigen Insekten-Viren II

Abstract

Electron-micrographs of whole virus-rods show a helix structure and confirm results published by K. M. SMITH. Basing on former observations of a hole in the centre of sub-units a new model of rodshaped insect-viruses is proposed. This model is similar to that of TMV. In view of the new observations on the structure and of the eclipse of these viruses, no confirmation for the hypothesis of a “life cycle” as suggested by BERGOLD and BIRD was obtained. Sub-units do not represent virus developmental stages but artifacts of alkaline degradation.