Morphologie des phages de lysotypie de Salmonella paratyphi B (schéma de Felix et Callow)

Abstract

The phages belong to the conventional morphological groups A1, B1, and C1. They have octahedral heads and either contractile, long non-contractile, or short tails. Our findings confirm the validity of the Felix and Callow typing scheme. Preparations of phage Beccles have been shown to contain abnormal particles such as tail tubes of various lengths, either with or without heads and tail sheaths. Some may even possess two tail sheaths. Isolated sheaths aggregate spontaneously into chains. Preparations of phage Jersey contain numerous phage tails of abnormal lengths and a few complete phages with elongated tails.