PEROXIDASE IN RELATION TO BACTERIAL GROWTH WITH SPECIAL REFERENCE TO THE INFLUENZA BACILLUS
Abstract
Receive: RSS Feeds, eTOCs, free email alerts (when new articles cite this article), more» Information about commercial reprint orders: http://jb.asm.org/site/misc/reprints.xhtml To subscribe to to another ASM Journal go to: http://journals.asm.org/site/subscriptions/ Department of Bacteriology, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, Maryland Received for publication, June 28, 1930 The most interesting work of recent years on Bacillus influenzae has dealt with its growth requirements. A number of investigators (Davis, 1921 a and b; Fildes, 1921; Rivers and Poole, 1921; Thjotta and Avery, 1920-1921) have definitely shown that two distinct accessory food substances or factors are essential to the growth of true influenza bacilli in aerobic culture. Thjotta and Avery (1920-1921) designated the two separable factors as X and V respectively. Since the recognition and separation of the two factors, organisms have been described which require only one of the factors for their growth in aerobic culture. Rivers (1922, a, b, and c) reported that Friedberger's Bacillus hemoglobinophilus-canis requires the X-factor only, and that bacilli have been obtained from human cases which require the V-factor only. The latter were called Bacillus parainfluenzae. The nature of the X and V factors and their r6le in the growth of