ATCC Collection Research Articles

Differentiation of Lactobacillus helveticus, Lactobacillus delbrueckii subsp bulgaricus, subsp lactis and subsp delbrueckii Using Physiological and Genetic Tools and Reclassification of some Strains from the ATCC Collection

Several physiological tests of glucose metabolism and genetic tools including species specific probes and 16S rDNA sequences were used to identify strains of L. helveticus and the group of L. delbrueckii with its three subspecies lactis, bulgaricus, and delbrueckii. These species are important for the milk industry as fermenting lactic acid bacteria. The identification procedure was applied to the different strains of these species available from the ATCC collection and allowed to reclassify part of them.

The ATCC Collection of Protozoa and Algae: History, Growth and Development

The Journal of ProtozoologyVolume 23, Issue 3 p. 430-430 The ATCC Collection of Protozoa and Algae: History, Growth and Development First published: August 1976 https://doi.org/10.1111/j.1550-7408.1976.tb03803.xAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume23, Issue3August 1976Pages 430-430 RelatedInformation

Preservation of Mycoplasmatales and L-phase variants in the American Type Culture Collection by freezing and freeze-drying

The ATCC collection of Mycoplasmatales (with the exception of Thermoplasma) have been freeze-dried using a final concentration of 12% sucrose in the recommended growth media. Longevity studies show that storage at −30 °C results in acceptable viability. Improved methods for the preservation of strains of Neissera L-phase variants are being investigated.